/* ==========================================================================
   APIQ – style.css
   Asociación Paraguaya de Ingenieros Químicos
   v2.0 – SEO, Performance, Animaciones mejoradas, Responsive
========================================================================== */

/* =====================================================================
   VARIABLES CSS
===================================================================== */
:root {
    --white: #ffffff;
    --white-soft: #f8fafc;
    --white-mute: #f1f5f9;

    --primary-light: #4a7bc1;
    --primary: #3b6cb0;
    --primary-dark: #2c5b9f;

    --accent-light: #66d9ff;
    --accent: #00c6ff;
    --accent-dark: #0099cc;

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #64748b;

    --surface: #ffffff;
    --surface-light: #f8fafc;
    --surface-dark: #f1f5f9;

    --text-dark: #1e293b;
    --text-medium: #475569;
    --text-light: #64748b;
    --text-white: #ffffff;

    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border: #cbd5e1;

    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -1px rgb(0 0 0 / 0.06);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -2px rgb(0 0 0 / 0.05);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Roboto Slab', Georgia, serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    --z-dropdown: 10;
    --z-sticky: 20;
    --z-fixed: 30;
    --z-modal: 40;
    --z-popover: 50;
    --z-tooltip: 60;
    --z-toast: 70;
    --z-loading: 9999;
}

/* =====================================================================
   RESET Y BASE
===================================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--surface);
    overflow-x: hidden;
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul, ol { list-style: none; }

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

address { font-style: normal; }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* =====================================================================
   SKIP LINK
===================================================================== */
.skip-link {
    position: absolute;
    top: -44px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: .5rem 1rem;
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: var(--z-tooltip);
    transition: top var(--transition);
}
.skip-link:focus { top: 0; }

/* =====================================================================
   LOADING SCREEN
===================================================================== */
.loading-screen {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    opacity: 1;
    visibility: visible;
    transition: opacity 0.6s ease, visibility 0.6s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
}

.atom-loader {
    position: relative;
    width: 120px;
    height: 120px;
}

.nucleus {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 30px; height: 30px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(0,198,255,.3);
}

.electron-orbit {
    position: absolute;
    top: 50%; left: 50%;
    border: 2px solid rgba(74,123,193,.2);
    border-radius: 50%;
    transform: translate(-50%,-50%);
}

.electron-orbit.electron-1 { width: 80px; height: 80px; animation: orbit-1 3s linear infinite; }
.electron-orbit.electron-2 { width: 100px; height: 100px; animation: orbit-2 4s linear infinite reverse; }
.electron-orbit.electron-3 { width: 120px; height: 120px; animation: orbit-3 5s linear infinite; }

.electron {
    position: absolute;
    top: -6px; left: 50%;
    width: 12px; height: 12px;
    background: var(--accent);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px var(--accent);
}

.loading-text {
    display: flex;
    gap: var(--space-2);
}

.loading-letter {
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--primary);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease forwards;
}
.loading-letter:nth-child(1) { animation-delay: 0.1s; }
.loading-letter:nth-child(2) { animation-delay: 0.2s; }
.loading-letter:nth-child(3) { animation-delay: 0.3s; }
.loading-letter:nth-child(4) { animation-delay: 0.4s; }

/* =====================================================================
   SCROLL PROGRESS
===================================================================== */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 3px;
    z-index: var(--z-tooltip);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}
.scroll-progress.visible { opacity: 1; }

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    transition: width 0.1s linear;
    position: relative;
    overflow: hidden;
}
.progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.4), transparent);
    animation: shimmer 2s infinite;
}

/* =====================================================================
   NAVIGATION
===================================================================== */
.sticky-nav {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    padding: var(--space-4) 0;
    transition: background .3s ease, padding .3s ease, box-shadow .3s ease;
}

.sticky-nav.scrolled {
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: var(--space-2) 0;
    box-shadow: 0 1px 0 var(--border-light), var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 700;
    position: relative;
    z-index: var(--z-fixed);
    flex-shrink: 0;
}

.logo-wrapper {
    width: 40px; height: 40px;
    position: relative;
    flex-shrink: 0;
}

.nav-logo-img {
    width: 100%; height: 100%;
    object-fit: contain;
    transition: transform var(--transition);
}
.nav-logo:hover .nav-logo-img { transform: scale(1.08) rotate(-3deg); }

.logo-text {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: var(--text-xl);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 32px; height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-fixed);
    flex-shrink: 0;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-dark);
    transition: all var(--transition);
    transform-origin: center;
    border-radius: 2px;
}
.hamburger.active .hamburger-line:nth-child(1) { transform: translateY(10px) rotate(45deg); }
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-10px) rotate(-45deg); }

/* Nav overlay mobile */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    transition: opacity var(--transition);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.nav-overlay.active { display: block; opacity: 1; }

/* Nav links */
.nav-menu { display: flex; align-items: center; }

.nav-links {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.nav-link {
    position: relative;
    color: var(--text-dark);
    font-weight: 500;
    font-size: var(--text-sm);
    padding: var(--space-2) 0;
    transition: color var(--transition);
    white-space: nowrap;
    overflow: hidden;
}

.nav-link::before {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    color: var(--primary);
    overflow: hidden;
    white-space: nowrap;
    width: 0;
    transition: width var(--transition);
}
.nav-link:hover::before { width: 100%; }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
    border-radius: 2px;
}
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); transform-origin: left; }
.nav-link.active { color: var(--primary); font-weight: 600; }

/* Nav CTA destacada */
.nav-link--cta {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent !important;
    font-weight: 700;
}
.nav-link--cta::before { color: var(--accent); }
.nav-link--cta::after { background: linear-gradient(90deg, var(--accent), var(--primary)); }

/* =====================================================================
   HERO SECTION
===================================================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-light) 100%);
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    display: block;
    pointer-events: none;
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 40%, rgba(0,198,255,.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    padding-top: 80px; /* nav height */
}

.hero-logo-container {
    margin-bottom: var(--space-10);
    opacity: 0;
    animation: fadeInDown .9s var(--transition-slow) .2s forwards;
}

.hero-logo-wrapper {
    width: 180px; height: 180px;
    margin: 0 auto;
}

.hero-logo-img {
    width: 100%; height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 12px 32px rgba(26,74,141,.12));
    animation: float 6s ease-in-out infinite;
}

.hero-title {
    margin-bottom: var(--space-6);
    opacity: 0;
    animation: fadeInUp .8s var(--transition-slow) .5s forwards;
}

.title-line { display: block; line-height: 1.2; }

.title-line-1 {
    font-size: clamp(var(--text-lg), 2.5vw, var(--text-3xl));
    font-weight: 400;
    color: var(--text-light);
    margin-bottom: var(--space-2);
}

.title-line-2 {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.title-word {
    font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl));
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    display: inline-block;
}

.title-word::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary-light));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .5s var(--transition-slow);
    border-radius: 2px;
}
.title-word:hover::after { transform: scaleX(1); transform-origin: left; }

.hero-subtitle {
    margin-bottom: var(--space-10);
    opacity: 0;
    animation: fadeInUp .8s var(--transition-slow) .8s forwards;
}

.subtitle-text {
    font-size: clamp(var(--text-sm), 2vw, var(--text-lg));
    color: var(--text-light);
    font-weight: 400;
    letter-spacing: .03em;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-16);
    opacity: 0;
    animation: fadeInUp .8s var(--transition-slow) 1.1s forwards;
}

/* CTA Buttons */
.cta-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-base);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    min-width: 180px;
    height: 52px;
    text-decoration: none;
}

.cta-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(59,108,176,.3);
}
.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59,108,176,.4);
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    color: var(--text-white);
}

.cta-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.cta-secondary:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.button-icon {
    width: 18px; height: 18px;
    fill: currentColor;
    transition: transform var(--transition);
    flex-shrink: 0;
}
.cta-primary:hover .button-icon { transform: translateX(4px) rotate(-10deg); }

/* Button loading */
.cta-button.loading { pointer-events: none; opacity: .8; }
.cta-button.loading .button-icon { display: none; }

.button-loader {
    display: none;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    flex-shrink: 0;
}
.cta-button.loading .button-loader { display: block; }

/* Scroll indicator */
.hero-scroll {
    opacity: 0;
    animation: fadeInUp 1s var(--transition-slow) 1.5s forwards;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.scroll-text {
    font-size: var(--text-xs);
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px; height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    position: relative;
    overflow: hidden;
}

.scroll-dot {
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px;
    background: var(--accent);
    border-radius: var(--radius-full);
    animation: scrollDot 2s ease-in-out infinite;
}

/* =====================================================================
   SECTIONS COMUNES
===================================================================== */
.section { padding: var(--space-24) 0; position: relative; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--accent-dark);
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-bottom: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background: rgba(0,198,255,.08);
    border: 1px solid rgba(0,198,255,.2);
    border-radius: var(--radius-full);
}

.section-title { margin-bottom: var(--space-6); }

.title-main {
    display: block;
    font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
    font-weight: 400;
    color: var(--text-dark);
}

.title-highlight {
    display: inline-block;
    font-size: clamp(var(--text-3xl), 4.5vw, var(--text-5xl));
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0 var(--space-2);
}

.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
}
.divider-line { width: 60px; height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.divider-dot { width: 8px; height: 8px; background: var(--accent); border-radius: var(--radius-full); animation: pulse 2s ease-in-out infinite; }

/* =====================================================================
   REVEAL ANIMATIONS (sistema unificado)
===================================================================== */
.reveal-up,
.fade-in-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .7s cubic-bezier(.16,1,.3,1),
                transform .7s cubic-bezier(.16,1,.3,1);
    transition-delay: var(--delay, 0s);
}

.reveal-up.visible,
.fade-in-up.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* =====================================================================
   ABOUT SECTION
===================================================================== */
.about-section { background: var(--surface-light); }

.background-pattern {
    position: absolute;
    inset: 0;
    opacity: .03;
    background-image: radial-gradient(circle at 1px 1px, var(--primary) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
}

@media (min-width: 1024px) {
    .about-grid { grid-template-columns: 2fr 1fr; }
}

.about-content { display: grid; gap: var(--space-8); }
.about-text { max-width: 800px; }

.text-paragraph {
    font-size: var(--text-lg);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    color: var(--text-medium);
}
.text-paragraph strong { color: var(--text-dark); font-weight: 600; }

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
}

.feature-card {
    background: var(--surface);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-slow), box-shadow var(--transition);
    will-change: transform;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }

.feature-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: var(--space-4);
}
.feature-icon svg { width: 24px; height: 24px; fill: white; }

.feature-card h3 { font-size: var(--text-xl); margin-bottom: var(--space-2); color: var(--text-dark); }
.feature-card p { font-size: var(--text-sm); color: var(--text-light); line-height: 1.6; }

/* Stats */
.about-stats { position: relative; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    padding: var(--space-8);
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

@media (min-width: 1024px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

.stat-item { text-align: center; }

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: var(--space-2);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-line {
    width: 80px; height: 4px;
    background: var(--border-light);
    border-radius: var(--radius-sm);
    margin: 0 auto;
    overflow: hidden;
}
.stat-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--primary-light));
    border-radius: var(--radius-sm);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1.5s cubic-bezier(.68,-.6,.32,1.6);
}
.stat-item.visible .stat-progress { transform: scaleX(1); }

/* =====================================================================
   SERVICES SLIDER
===================================================================== */
.services-slider {
    max-width: 900px;
    margin: 0 auto;
}

.slider-container {
    position: relative;
    border-radius: var(--radius-xl);
    background: var(--surface);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.slider-track {
    display: flex;
    transition: transform .6s cubic-bezier(.16,1,.3,1);
    min-height: 380px;
}

.slide {
    min-width: 100%;
    padding: var(--space-12);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity .5s ease;
}
.slide.active { opacity: 1; }

.slide-content { max-width: 560px; text-align: center; position: relative; }

.slide-number {
    position: absolute;
    top: -50px; left: 50%;
    transform: translateX(-50%);
    font-size: 5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: .08;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.slide-icon {
    width: 72px; height: 72px;
    margin: 0 auto var(--space-6);
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 30px rgba(0,198,255,.15);
}
.slide-icon svg { width: 30px; height: 30px; fill: white; }

.slide-title { font-size: var(--text-3xl); margin-bottom: var(--space-4); color: var(--text-dark); font-weight: 700; }

.slide-description {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: var(--space-6);
}

.slide-features {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.slide-features span {
    padding: var(--space-2) var(--space-4);
    background: rgba(0,198,255,.08);
    border: 1px solid rgba(0,198,255,.2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--primary);
    transition: all var(--transition);
}
.slide-features span:hover { background: var(--primary); color: white; border-color: var(--primary); }

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    padding: var(--space-6) 0 var(--space-8);
}

.slider-prev, .slider-next {
    width: 48px; height: 48px;
    border-radius: var(--radius-full);
    border: 2px solid var(--border-light);
    background: var(--surface);
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
    color: var(--text-dark);
}
.slider-prev svg, .slider-next svg { width: 22px; height: 22px; fill: currentColor; }
.slider-prev:hover, .slider-next:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.08);
}

.slider-dots { display: flex; gap: var(--space-2); }

.dot {
    width: 10px; height: 10px;
    border-radius: var(--radius-full);
    background: var(--border-medium);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}
.dot.active { background: var(--primary); transform: scale(1.3); }
.dot:hover:not(.active) { background: var(--primary-light); }

/* =====================================================================
   BOARD SECTION
===================================================================== */
.board-section { background: var(--surface-light); }

.background-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border-light) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: .25;
    pointer-events: none;
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.member-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-slow), box-shadow var(--transition);
    will-change: transform;
    transform-style: preserve-3d;
}
.member-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); }

.member-image-container { position: relative; height: 280px; overflow: hidden; }

.member-image { width: 100%; height: 100%; }
.member-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .8s var(--transition-slow);
}
.member-card:hover .member-image img { transform: scale(1.06); }

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,.6));
}

.member-decoration {
    position: absolute;
    bottom: 16px; left: 16px; right: 16px;
    display: flex; align-items: center; gap: var(--space-3);
    z-index: 1;
}
.decoration-line { flex: 1; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); }
.decoration-dot { width: 8px; height: 8px; background: var(--accent); border-radius: var(--radius-full); animation: pulse 2s ease-in-out infinite; }

.member-info { padding: var(--space-5); }
.member-name { font-size: var(--text-xl); margin-bottom: var(--space-2); color: var(--text-dark); font-weight: 600; }

.member-role { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.role-text { font-size: var(--text-xs); font-weight: 700; color: var(--accent-dark); text-transform: uppercase; letter-spacing: 1px; }
.role-line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--accent), transparent); }

.member-bio { font-size: var(--text-sm); line-height: 1.6; color: var(--text-light); margin-bottom: var(--space-4); }

.member-contacts { display: flex; flex-direction: column; gap: var(--space-1); }
.contact-item { font-size: var(--text-xs); color: var(--primary); transition: color var(--transition); }
.contact-item:hover { color: var(--accent-dark); }

/* =====================================================================
   DOCUMENTS SECTION
===================================================================== */
.documents-section { background: var(--surface); }

.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-5);
}

.document-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-slow), box-shadow var(--transition), border-color var(--transition);
    will-change: transform;
}
.document-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,198,255,.3);
}

.document-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: var(--space-4);
    flex-shrink: 0;
}
.document-icon svg { width: 28px; height: 28px; fill: white; }

.document-title { font-size: var(--text-xl); margin-bottom: var(--space-3); color: var(--text-dark); font-weight: 600; }
.document-description { font-size: var(--text-sm); color: var(--text-light); line-height: 1.6; flex: 1; margin-bottom: var(--space-5); }

.document-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: transparent;
    border: 2px solid var(--primary);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition);
    align-self: flex-start;
}
.document-button svg { width: 16px; height: 16px; fill: currentColor; transition: transform var(--transition); }
.document-button:hover {
    background: var(--primary);
    color: white;
    transform: translateX(4px);
}
.document-button:hover svg { transform: translateX(3px); }

/* =====================================================================
   LAW SECTION
===================================================================== */
.law-section { background: linear-gradient(135deg, var(--surface-light), var(--surface)); }

.law-content {
    max-width: 880px;
    margin: 0 auto;
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.law-status { margin-bottom: var(--space-6); text-align: center; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(245,158,11,.08);
    color: #92400e;
    border: 1px solid rgba(245,158,11,.2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    margin-bottom: var(--space-3);
}
.status-badge svg { width: 16px; height: 16px; fill: currentColor; }

.law-expediente { font-size: var(--text-base); color: var(--text-medium); font-weight: 500; }

.law-description { margin-bottom: var(--space-6); }
.law-description p { font-size: var(--text-base); line-height: 1.8; color: var(--text-dark); margin-bottom: var(--space-4); }
.law-description h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-4);
    color: var(--text-dark);
    border-left: 4px solid var(--accent);
    padding-left: var(--space-4);
    font-weight: 600;
}

.law-list { padding: 0; }
.law-list li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-light);
    font-size: var(--text-sm);
    color: var(--text-medium);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    line-height: 1.6;
}
.law-list li:last-child { border-bottom: none; }
.law-list li strong { color: var(--primary); min-width: 180px; font-weight: 600; flex-shrink: 0; }

.law-links { background: var(--surface-light); border-radius: var(--radius-lg); padding: var(--space-6); }
.law-links h3 { font-size: var(--text-base); margin-bottom: var(--space-4); color: var(--text-dark); font-weight: 600; }

.links-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-3); }

.law-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--surface);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition);
    border: 1px solid var(--border-light);
}
.law-link svg { width: 18px; height: 18px; fill: currentColor; }
.law-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

/* =====================================================================
   MEMBERSHIP SECTION
===================================================================== */
.membership-section { background: var(--surface); }

.membership-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    max-width: 1200px;
    margin: 0 auto;
}
@media (min-width: 1024px) {
    .membership-container { grid-template-columns: 1fr 1fr; align-items: start; }
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-5);
    margin-top: var(--space-8);
}

.benefit-item {
    background: var(--surface);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    text-align: center;
    transition: transform var(--transition-slow), box-shadow var(--transition);
    will-change: transform;
}
.benefit-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.benefit-icon {
    width: 56px; height: 56px;
    margin: 0 auto var(--space-4);
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 16px rgba(0,198,255,.15);
}
.benefit-icon svg { width: 24px; height: 24px; fill: white; }
.benefit-item h3 { font-size: var(--text-base); margin-bottom: var(--space-2); color: var(--text-dark); font-weight: 600; }
.benefit-item p { font-size: var(--text-sm); color: var(--text-light); line-height: 1.6; }

/* Form wrapper */
.form-wrapper {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.form-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--border-light);
}
.form-header h3 { font-size: var(--text-2xl); font-weight: 700; color: var(--text-dark); margin-bottom: var(--space-2); }
.form-header p { color: var(--text-light); font-size: var(--text-sm); }

/* Form fields */
.custom-form { display: flex; flex-direction: column; gap: var(--space-5); }

.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: .2em;
}

.required-mark { color: var(--error); font-weight: 700; }

.form-group input,
.form-group textarea {
    padding: .75rem 1rem;
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    background: var(--surface);
    color: var(--text-dark);
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-tertiary); }

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,198,255,.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* Field states */
.form-group--success input,
.form-group--success textarea {
    border-color: var(--success);
    background: rgba(16,185,129,.02);
}
.form-group--error input,
.form-group--error textarea {
    border-color: var(--error);
    background: rgba(239,68,68,.02);
    animation: shake .35s ease-in-out;
}

.error-message {
    color: var(--error);
    font-size: var(--text-xs);
    font-weight: 500;
    min-height: 1.2rem;
}

.char-count {
    text-align: right;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: .15rem;
}
.char-count--warn { color: var(--warning); font-weight: 600; }

.form-group--recaptcha { margin-top: var(--space-2); }

.form-submit { margin-top: var(--space-2); }
.form-submit .cta-button { width: 100%; }

/* =====================================================================
   CONTACT SECTION
===================================================================== */
.contact-section { background: var(--surface-light); }

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}
@media (min-width: 768px) { .contact-content { grid-template-columns: 1fr 1fr; } }

.contact-info { display: grid; gap: var(--space-4); }

.contact-card {
    background: var(--surface);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.contact-icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: var(--space-3);
}
.contact-icon svg { width: 22px; height: 22px; fill: white; }
.contact-card h3 { font-size: var(--text-base); margin-bottom: var(--space-1); color: var(--text-dark); font-weight: 600; }
.contact-card a, .contact-card p, .contact-card address { color: var(--primary); font-size: var(--text-sm); transition: color var(--transition); }
.contact-card a:hover { color: var(--accent-dark); }

.contact-map { background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); }
.map-placeholder { padding: var(--space-5); height: 100%; display: flex; flex-direction: column; }
.map-placeholder h4 { font-size: var(--text-xl); margin-bottom: var(--space-2); color: var(--text-dark); }
.map-placeholder p { color: var(--text-light); font-size: var(--text-sm); margin-bottom: var(--space-4); }

.map-frame { flex: 1; border-radius: var(--radius-md); overflow: hidden; min-height: 300px; }
.map-frame iframe { display: block; }

/* =====================================================================
   FOOTER
===================================================================== */
.footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.footer-background { position: absolute; inset: 0; opacity: .07; pointer-events: none; }
.footer-pattern {
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.15) 1px, transparent 0);
    background-size: 28px 28px;
}

.footer-content { position: relative; z-index: 1; padding: var(--space-16) 0 var(--space-8); }

.footer-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}
@media (min-width: 768px) { .footer-main { grid-template-columns: 1fr 1fr; } }

.footer-logo { display: flex; align-items: center; gap: var(--space-4); }
.footer-logo-img { width: 56px; height: 56px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-logo-text h3 { font-size: var(--text-2xl); font-weight: 700; color: white; }
.footer-logo-text p { color: rgba(255,255,255,.7); font-size: var(--text-sm); }

.footer-contact h4 { font-size: var(--text-lg); margin-bottom: var(--space-5); color: white; font-weight: 600; }

.contact-info { display: flex; flex-direction: column; gap: var(--space-3); }

.footer .contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: rgba(255,255,255,.8);
    font-size: var(--text-sm);
    transition: all var(--transition);
}
.footer .contact-item:hover { color: white; transform: translateX(4px); }
.footer .contact-item svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.footer .contact-item a { color: inherit; }
.footer .contact-item a:hover { color: white; }

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-8);
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer-column h4 { font-size: var(--text-base); margin-bottom: var(--space-5); color: white; font-weight: 600; }
.footer-column ul { padding: 0; }
.footer-column li { margin-bottom: var(--space-3); }
.footer-column a { color: rgba(255,255,255,.7); font-size: var(--text-sm); transition: all var(--transition); display: inline-block; }
.footer-column a:hover { color: white; transform: translateX(4px); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: var(--space-6);
    text-align: center;
}

.social-links { display: flex; justify-content: center; gap: var(--space-3); margin-bottom: var(--space-5); }

.social-link {
    width: 40px; height: 40px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.15);
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 4px 16px rgba(0,198,255,.3);
}
.social-link svg { width: 18px; height: 18px; fill: white; }

.copyright { color: rgba(255,255,255,.6); font-size: var(--text-sm); margin: 0 0 var(--space-2); }
.ruc-footer { color: rgba(255,255,255,.4); font-size: var(--text-xs); }

/* =====================================================================
   BACK TO TOP
===================================================================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 52px; height: 52px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border: none;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: var(--z-toast);
    box-shadow: 0 4px 16px rgba(59,108,176,.3);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px) scale(1.08); box-shadow: 0 8px 24px rgba(0,198,255,.3); }
.back-to-top svg { width: 22px; height: 22px; fill: currentColor; }

/* =====================================================================
   WHATSAPP BUTTON
===================================================================== */
.whatsapp-button {
    position: fixed;
    bottom: calc(var(--space-8) + 64px);
    right: var(--space-8);
    width: 52px; height: 52px;
    border-radius: var(--radius-full);
    background: #25D366;
    display: flex; align-items: center; justify-content: center;
    z-index: var(--z-toast);
    box-shadow: 0 4px 16px rgba(37,211,102,.3);
    transition: all var(--transition);
}
.whatsapp-button:hover {
    background: #128C7E;
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 8px 24px rgba(37,211,102,.4);
}
.whatsapp-icon { width: 28px; height: 28px; }

/* =====================================================================
   TOAST NOTIFICATIONS
===================================================================== */
#toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: .75rem;
    pointer-events: none;
    max-width: 360px;
    width: calc(100% - 2rem);
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,.12), 0 2px 8px rgba(0,0,0,.06);
    font-size: var(--text-sm);
    font-weight: 500;
    transform: translateX(calc(100% + 2rem));
    transition: transform .4s cubic-bezier(.34,1.56,.64,1);
    pointer-events: all;
    background: var(--surface);
    word-break: break-word;
}
.toast.show { transform: translateX(0); }

.toast-success { border-left: 4px solid var(--success); color: #065f46; }
.toast-error   { border-left: 4px solid var(--error);   color: #991b1b; }
.toast-info    { border-left: 4px solid var(--primary);  color: var(--primary-dark); }

.toast svg { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; margin-top: 1px; }
.toast-message { flex: 1; line-height: 1.5; }
.toast-close {
    margin-left: .25rem;
    background: none; border: none;
    cursor: pointer; opacity: .4;
    color: inherit; font-size: 1rem;
    line-height: 1; padding: 0;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}
.toast-close:hover { opacity: 1; }

/* =====================================================================
   MODAL
===================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    padding: var(--space-4);
}
.modal-overlay.active { opacity: 1; visibility: visible; }

.modal-container {
    background: linear-gradient(135deg, #1a1f2e, #0f1422);
    border-radius: var(--radius-xl);
    max-width: 480px;
    width: 100%;
    box-shadow: 0 25px 60px rgba(0,0,0,.4);
    border: 1px solid rgba(255,255,255,.1);
    transform: translateY(-24px) scale(.96);
    transition: transform var(--transition-slow);
    overflow: hidden;
}
.modal-overlay.active .modal-container { transform: translateY(0) scale(1); }

.modal-header { padding: var(--space-6); text-align: center; border-bottom: 1px solid rgba(255,255,255,.08); }
.modal-icon { font-size: 2.5rem; margin-bottom: var(--space-3); }
.modal-header h2 { color: white; font-size: var(--text-2xl); font-weight: 700; }

.modal-content { padding: var(--space-5); }
.modal-image img { max-width: 100%; height: auto; border-radius: var(--radius-lg); }
.modal-promo-img { width: 100%; height: auto; max-height: 65vh; object-fit: contain; border-radius: var(--radius-lg); display: block; margin: 0 auto; }

.modal-footer {
    padding: var(--space-5) var(--space-6);
    display: flex; gap: var(--space-3);
    justify-content: center;
    border-top: 1px solid rgba(255,255,255,.08);
}

.modal-btn {
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    font-size: var(--text-sm);
    min-width: 120px;
    text-align: center;
}
.modal-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: var(--shadow-md);
}
.modal-btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); }
.modal-btn-secondary {
    background: transparent;
    color: rgba(255,255,255,.8);
    border: 1.5px solid rgba(255,255,255,.25);
}
.modal-btn-secondary:hover { border-color: var(--accent); color: white; background: rgba(255,255,255,.05); }

/* =====================================================================
   ANIMACIONES KEYFRAMES
===================================================================== */
@keyframes pulse {
    0%, 100% { transform: translate(-50%,-50%) scale(1); box-shadow: 0 0 20px rgba(0,198,255,.3); }
    50% { transform: translate(-50%,-50%) scale(1.12); box-shadow: 0 0 32px rgba(0,198,255,.5); }
}
/* Para elementos no centrados */
.divider-dot, .decoration-dot {
    animation: pulseSimple 2s ease-in-out infinite;
}
@keyframes pulseSimple {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .7; transform: scale(1.2); }
}

@keyframes orbit-1 { from { transform: translate(-50%,-50%) rotate(0deg); } to { transform: translate(-50%,-50%) rotate(360deg); } }
@keyframes orbit-2 { from { transform: translate(-50%,-50%) rotate(45deg); } to { transform: translate(-50%,-50%) rotate(405deg); } }
@keyframes orbit-3 { from { transform: translate(-50%,-50%) rotate(90deg); } to { transform: translate(-50%,-50%) rotate(450deg); } }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-16px) scale(1.03); }
}

@keyframes scrollDot {
    0% { top: 0; opacity: 0; }
    30% { opacity: 1; }
    100% { top: 60px; opacity: 0; }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

/* =====================================================================
   RESPONSIVE – TABLET
===================================================================== */
@media (max-width: 1024px) {
    .nav-links { gap: var(--space-4); }
    .board-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
}

/* =====================================================================
   RESPONSIVE – MOBILE
===================================================================== */
@media (max-width: 768px) {
    /* Nav */
    .hamburger { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: min(320px, 85vw);
        height: 100vh;
        background: var(--surface);
        box-shadow: var(--shadow-xl);
        transition: right .45s cubic-bezier(.16,1,.3,1);
        z-index: var(--z-modal);
        padding: 80px var(--space-6) var(--space-6);
        overflow-y: auto;
    }
    .nav-menu.active { right: 0; }

    .nav-links {
        flex-direction: column;
        gap: var(--space-2);
        align-items: flex-start;
        width: 100%;
    }
    .nav-link {
        font-size: var(--text-lg);
        padding: var(--space-3) 0;
        width: 100%;
        border-bottom: 1px solid var(--border-light);
    }
    .nav-link:last-child { border-bottom: none; }

    /* Hero */
    .hero-logo-wrapper { width: 140px; height: 140px; }
    .title-line-2 { flex-direction: column; gap: var(--space-2); align-items: center; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .cta-button { width: 100%; max-width: 280px; }

    /* Sections */
    .section { padding: var(--space-16) 0; }

    /* Slider */
    .slider-track { min-height: 460px; }
    .slide { padding: var(--space-8) var(--space-5); }

    /* Stats */
    .stats-grid { grid-template-columns: 1fr 1fr; padding: var(--space-5); }

    /* Board */
    .board-grid { grid-template-columns: 1fr; }

    /* Law */
    .law-content { padding: var(--space-5); }
    .law-list li { flex-direction: column; gap: var(--space-1); }
    .law-list li strong { min-width: auto; }
    .links-grid { grid-template-columns: 1fr; }

    /* Footer */
    .footer-main { grid-template-columns: 1fr; gap: var(--space-8); }
    .footer-links { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--space-6); }

    /* Back to top / WA */
    .back-to-top, .whatsapp-button {
        width: 46px; height: 46px;
        bottom: var(--space-4);
        right: var(--space-4);
    }
    .whatsapp-button { bottom: calc(var(--space-4) + 58px); }
    .whatsapp-icon { width: 24px; height: 24px; }

    /* Toast */
    #toast-container {
        top: auto; bottom: 5rem;
        left: 1rem; right: 1rem;
        width: auto; max-width: 100%;
    }
    .toast { transform: translateY(calc(100% + 2rem)); }
    .toast.show { transform: translateY(0); }

    /* Modal */
    .modal-footer { flex-direction: column; }
    .modal-btn { width: 100%; }
}

/* =====================================================================
   RESPONSIVE – SMALL MOBILE
===================================================================== */
@media (max-width: 480px) {
    .container { padding: 0 var(--space-4); }
    .hero-content { padding: 0 var(--space-4); padding-top: 80px; }
    .stats-grid { grid-template-columns: 1fr; }
    .benefits-grid { grid-template-columns: 1fr; }
    .form-wrapper { padding: var(--space-5); }
    .form-header h3 { font-size: var(--text-xl); }
    .documents-grid { grid-template-columns: 1fr; }
    .slide-title { font-size: var(--text-2xl); }
    .about-features { grid-template-columns: 1fr; }
    .stat-number { font-size: var(--text-4xl); }
    .modal-container { border-radius: var(--radius-lg); }
    .modal-promo-img { max-height: 50vh; }
}

/* =====================================================================
   ACCESIBILIDAD
===================================================================== */
@media (prefers-contrast: high) {
    :root {
        --primary: #0a3d91;
        --accent: #0099ff;
        --text-dark: #000;
        --text-light: #333;
        --border-light: #999;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
    .hero-logo-img,
    .nucleus,
    .electron-orbit,
    .loading-letter,
    .divider-dot,
    .decoration-dot,
    .scroll-dot { animation: none !important; }
}

/* =====================================================================
   UTILITIES
===================================================================== */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* =====================================================================
   PRINT
===================================================================== */
@media print {
    #toast-container, .loading-screen, .scroll-progress,
    .back-to-top, .whatsapp-button, .hero-scroll,
    .slider-controls, .social-links, .modal-overlay,
    .hamburger, .nav-overlay { display: none !important; }

    .section { padding: 1rem 0 !important; }
    a::after { content: " (" attr(href) ")"; font-size: .75em; }
    .hero-section { min-height: auto !important; }
}

/* FIX HERO – forzar visibilidad si animaciones fallan */
.hero-logo-container,
.hero-title,
.hero-subtitle,
.hero-buttons,
.hero-scroll {
    animation-fill-mode: both;
}

/* Fallback por si las Google Fonts no cargan */
.hero-content * {
    opacity: 1 !important; /* temporal para debug */
}