/* ============================================================
   GQC LEARNING SYSTEM — STYLES.CSS
   Colegio Guillermo Quintero Calderón
   Color Primario: #16A34A (Verde Institucional)
   ============================================================ */

/* ===================== GOOGLE FONTS ===================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600&display=swap');

/* ===================== CSS VARIABLES ===================== */
:root {
    /* VERDE INSTITUCIONAL GQC — Escala Completa */
    --primary-50:  #f0fdf4;
    --primary-100: #dcfce7;
    --primary-200: #bbf7d0;
    --primary-300: #86efac;
    --primary-400: #4ade80;
    --primary-500: #22c55e;
    --primary-600: #16A34A;
    --primary-700: #15803d;
    --primary-800: #166534;
    --primary-900: #14532d;

    /* RGB del primario para uso en rgba() */
    --primary-rgb: 22, 163, 74;

    /* FONDOS */
    --bg-primary:   #000000;
    --bg-secondary: #09090B;
    --bg-tertiary:  #18181B;
    --bg-card:      #0d1f13;

    /* TEXTOS */
    --text-primary:    #FFFFFF;
    --text-secondary:  #E4E4E7;
    --text-tertiary:   #A1A1AA;
    --text-quaternary: #71717A;

    /* ACENTOS */
    --success: #22C55E;
    --info:    #3B82F6;
    --warning: #F59E0B;
    --danger:  #EF4444;
    --gold:    #d4a017;

    /* TIPOGRAFÍA */
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body:    'Inter', sans-serif;

    /* ESPACIADO */
    --section-pad: 120px;
    --container-max: 1280px;

    /* BORDER RADIUS */
    --radius-sm:  8px;
    --radius-md:  16px;
    --radius-lg:  24px;
    --radius-xl:  32px;

    /* TRANSICIONES */
    --transition-fast:   0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow:   0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }

/* ===================== CURSOR PERSONALIZADO ===================== */
.cursor-dot,
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-400);
    transition: transform 0.1s;
}

.cursor-outline {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(var(--primary-rgb), 0.6);
    transition: transform 0.15s ease, width 0.3s, height 0.3s;
}

body:hover .cursor-dot,
body:hover .cursor-outline { opacity: 1; }

/* ===================== PARTÍCULAS ===================== */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(var(--primary-rgb), 0.5);
    border-radius: 50%;
    animation: float-particle 20s infinite ease-in-out;
}

.particle:nth-child(even) {
    background: rgba(var(--primary-rgb), 0.25);
    width: 2px;
    height: 2px;
}

@keyframes float-particle {
    0%, 100% { transform: translate(0, 0); opacity: 0.3; }
    25%       { transform: translate(80px, -120px); opacity: 0.7; }
    50%       { transform: translate(-40px, -240px); opacity: 0.4; }
    75%       { transform: translate(-100px, -100px); opacity: 0.8; }
}

/* ===================== NAVBAR ===================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 2px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid rgba(var(--primary-rgb), 0.12);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    padding: 2px 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-img {
    width: 52px;
    height: 60px;   /* Alto > ancho porque el escudo es más alto que ancho */
    object-fit: contain;
    /* Solo sombra para contraste en fondo oscuro — SIN filtros de color
       para preservar los colores originales del escudo (dorado, rojo, verde) */
    filter: drop-shadow(0 1px 4px rgba(0,0,0,0.9)) drop-shadow(0 0 8px rgba(0,0,0,0.7));
    transition: transform var(--transition-fast), filter var(--transition-fast);
    image-rendering: -webkit-optimize-contrast; /* Más nítido en tamaño pequeño */
    image-rendering: crisp-edges;
}

.nav-logo:hover .logo-img {
    transform: scale(1.06);
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.95)) drop-shadow(0 0 12px rgba(0,0,0,0.8));
}

.nav-brand {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.brand-sub {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--primary-400);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-tertiary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 14px;
    width: 0;
    height: 2px;
    background: var(--primary-500);
    border-radius: 1px;
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: calc(100% - 28px);
}

/* Botón nav */
.btn-nav {
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--primary-700), var(--primary-600));
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(var(--primary-rgb), 0.3);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-nav:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    box-shadow: 0 0 20px rgba(var(--primary-rgb), 0.4);
    transform: translateY(-1px);
}

/* Hamburguesa */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
    display: none;
    padding: 20px 32px 32px;
    border-top: 1px solid rgba(var(--primary-rgb), 0.1);
}

.mobile-menu.open { display: block; }

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--primary-400);
    background: rgba(var(--primary-rgb), 0.08);
}

.mobile-cta {
    display: block;
    text-align: center;
    margin-top: 12px;
}

/* ===================== BOTONES GLOBALES ===================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-600) 30%, var(--primary-500) 60%, var(--primary-600) 100%);
    background-size: 200% 200%;
    animation: gradient-shift 4s ease infinite;
    color: #ffffff;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    box-shadow:
        0 0 0 1px rgba(var(--primary-rgb), 0.4),
        0 4px 24px rgba(var(--primary-rgb), 0.35),
        inset 0 1px 0 rgba(255,255,255,0.15);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before { left: 150%; }

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow:
        0 0 0 2px rgba(var(--primary-rgb), 0.6),
        0 8px 40px rgba(var(--primary-rgb), 0.5),
        inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: 1.5px solid rgba(var(--primary-rgb), 0.35);
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: var(--primary-500);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.2);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.05rem;
}

.btn-full { width: 100%; justify-content: center; }

/* ===================== LAYOUT HELPERS ===================== */
.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary-400);
    margin-bottom: 16px;
    padding: 6px 16px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 50px;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-tertiary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 50%, var(--primary-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* GLASSMORPHISM CARD */
.glass-card {
    background: linear-gradient(
        135deg,
        rgba(var(--primary-rgb), 0.07) 0%,
        rgba(var(--primary-rgb), 0.03) 50%,
        rgba(var(--primary-rgb), 0.06) 100%
    );
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(var(--primary-rgb), 0.13);
    border-radius: var(--radius-lg);
    box-shadow:
        0 4px 6px -1px rgba(0,0,0,0.3),
        0 2px 4px -2px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(255,255,255,0.04);
    transition: all var(--transition-normal);
}

/* Hover SOLO para glass-cards que NO son back-face de flip cards */
.glass-card:not(.service-card-back):hover {
    border-color: rgba(var(--primary-rgb), 0.3);
    box-shadow:
        0 20px 40px -12px rgba(var(--primary-rgb), 0.25),
        inset 0 1px 0 rgba(255,255,255,0.06);
    transform: translateY(-4px);
}

/* El back de las flip cards NUNCA debe tener hover transform */
.service-card-back.glass-card {
    transition: none !important;
    transform: rotateY(180deg) !important;
}

.service-card-back.glass-card:hover {
    transform: rotateY(180deg) !important;
    border-color: rgba(var(--primary-rgb), 0.13);
    box-shadow:
        0 4px 6px -1px rgba(0,0,0,0.3),
        0 2px 4px -2px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(255,255,255,0.04);
}

/* ===================== REVEAL ANIMATIONS ===================== */
.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================== KEYFRAMES GLOBALES ===================== */
@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50%       { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25%       { transform: translateY(-18px) rotate(1.5deg); }
    50%       { transform: translateY(-8px) rotate(-1.5deg); }
    75%       { transform: translateY(-24px) rotate(1deg); }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow:
            0 0 0 1px rgba(var(--primary-rgb), 0.5),
            0 4px 24px rgba(var(--primary-rgb), 0.4),
            0 0 60px rgba(var(--primary-rgb), 0.2);
    }
    50% {
        box-shadow:
            0 0 0 2px rgba(var(--primary-rgb), 0.8),
            0 8px 40px rgba(var(--primary-rgb), 0.6),
            0 0 80px rgba(var(--primary-rgb), 0.4);
    }
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(40px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes scale-in {
    from { opacity: 0; transform: scale(0.8); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes badge-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

@keyframes scroll-wheel {
    0%   { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(8px); opacity: 0; }
}

@keyframes stat-bar-fill {
    from { width: 0; }
}

/* ===================== HERO SECTION ===================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg-gradient {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 1200px;
    height: 800px;
    background: radial-gradient(ellipse at center, rgba(var(--primary-rgb), 0.12) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--primary-rgb), 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--primary-rgb), 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 20%, black 30%, transparent 75%);
    pointer-events: none;
    z-index: 0;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

/* HERO CONTENT */
.hero-content {
    animation: fade-in-up 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-400);
    letter-spacing: 0.06em;
    padding: 8px 18px;
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    border-radius: 50px;
    margin-bottom: 28px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-400);
    border-radius: 50%;
    animation: badge-pulse 2s ease-in-out infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.hero-tagline {
    margin-bottom: 20px;
}

.quote-accent {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    font-style: normal;
    background: linear-gradient(135deg, var(--gold), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-tertiary);
    line-height: 1.75;
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid rgba(var(--primary-rgb), 0.15);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat span:first-child {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-400);
    line-height: 1;
}

.hero-stat > span:nth-child(2) {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-400);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-quaternary);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(var(--primary-rgb), 0.2);
}

/* HERO VISUAL */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scale-in 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.hero-glow-ring {
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    border: 1px solid rgba(var(--primary-rgb), 0.12);
    animation: rotate-slow 20s linear infinite;
}

.ring-2 {
    width: 640px;
    height: 640px;
    border-color: rgba(var(--primary-rgb), 0.06);
    animation-duration: 30s;
    animation-direction: reverse;
}

.hero-image {
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    object-fit: cover;
    filter: drop-shadow(0 0 40px rgba(var(--primary-rgb), 0.4));
}

.floating-element {
    animation: float 6s ease-in-out infinite;
}

/* Floating cards sobre el hero visual */
.hero-floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    min-width: 190px;
}

.card-1 { top: 10%; left: -15%; animation: float 7s ease-in-out infinite; }
.card-2 { bottom: 20%; left: -10%; animation: float 5s ease-in-out 1s infinite; }
.card-3 { top: 25%; right: -8%; animation: float 8s ease-in-out 0.5s infinite; }

.fc-icon { font-size: 1.5rem; }

.fc-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.fc-label {
    font-size: 0.7rem;
    color: var(--text-quaternary);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.fc-value {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.success-text { color: var(--success); }

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-quaternary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    z-index: 5;
}

.scroll-mouse {
    width: 22px;
    height: 36px;
    border: 2px solid rgba(var(--primary-rgb), 0.4);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--primary-500);
    border-radius: 2px;
    animation: scroll-wheel 1.5s ease-in-out infinite;
}

/* ===================== SOCIAL PROOF ===================== */
.social-proof {
    padding: 48px 0;
    border-top: 1px solid rgba(var(--primary-rgb), 0.08);
    border-bottom: 1px solid rgba(var(--primary-rgb), 0.08);
    background: rgba(var(--primary-rgb), 0.02);
    position: relative;
    z-index: 2;
}

.proof-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
    text-align: center;
}

.proof-label {
    font-size: 0.8rem;
    color: var(--text-quaternary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 28px;
}

.proof-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.proof-logo-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-quaternary);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: all var(--transition-fast);
    opacity: 0.6;
}

.proof-logo-item svg {
    opacity: 0.7;
    transition: all var(--transition-fast);
}

.proof-logo-item:hover {
    color: var(--primary-400);
    opacity: 1;
}

.proof-logo-item:hover svg {
    opacity: 1;
    color: var(--primary-400);
}

/* ===================== SERVICIOS / FLIP CARDS ===================== */
.services {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

/* ===================== FLIP CARD STYLES (BUG FIXED) =====================
   FIX: El bug de flickering se debía a:
   1. glass-card:hover aplicaba translateY al back face interfiriendo con el 3D
   2. El zoom de imagen disparaba el hover del outer durante el flip
   SOLUCIÓN: perspective en el outer, will-change + isolation en el inner,
   control por clase JS en lugar de :hover puro, zoom solo en frente.
============================================================ */
.service-card-flip {
    height: 380px;
    cursor: pointer;
    /* La perspective va AQUÍ en el contenedor padre */
    perspective: 1200px;
    perspective-origin: center center;
    /* Isolation previene que otros transforms interfieran */
    isolation: isolate;
}

.service-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: left;
    will-change: transform;
    transform-style: preserve-3d;
    transition: transform 0.75s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    /* CRÍTICO: el inner rota en 3D y confunde al hit-testing del navegador.
       Solo el outer .service-card-flip (plano) maneja eventos de mouse. */
    pointer-events: none;
}

/* Activar flip SOLO por clase JS (más estable que :hover puro) */
.service-card-flip.is-flipped .service-card-inner {
    transform: rotateY(180deg);
}

.service-card-front,
.service-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: var(--radius-lg);
    overflow: hidden;
    /* Deshabilitar pointer-events en la cara inactiva */
    pointer-events: none;
}

/* Solo la cara visible recibe eventos */
.service-card-flip:not(.is-flipped) .service-card-front {
    pointer-events: auto;
}

.service-card-flip.is-flipped .service-card-back {
    pointer-events: auto;
}

/* FRONT */
.service-card-front {
    background: var(--bg-tertiary);
    border: 1px solid rgba(var(--primary-rgb), 0.12);
}

.service-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Transición SOLO en la imagen, no afecta el flip */
    transition: transform 0.5s ease;
    will-change: transform;
}

/* Zoom de imagen SOLO cuando el front está visible */
.service-card-flip:not(.is-flipped):hover .service-image {
    transform: scale(1.06);
}

.service-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(
        to top,
        rgba(0,0,0,0.92) 0%,
        rgba(0,0,0,0.6) 50%,
        transparent 100%
    );
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.service-icon-front {
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.service-title-front {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.flip-hint {
    font-size: 0.72rem;
    color: var(--primary-400);
    opacity: 0.8;
    letter-spacing: 0.04em;
}

/* BACK */
.service-card-back {
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 32px;
    gap: 16px;
}

.service-back-icon {
    font-size: 2.5rem;
}

.service-title-back {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.service-description {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    line-height: 1.65;
    flex: 1;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.feature-tag {
    padding: 4px 12px;
    background: rgba(var(--primary-rgb), 0.12);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary-400);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ===================== ESTADÍSTICAS ===================== */
.stats-section {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
    background: var(--bg-secondary);
}

.stats-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse at center, rgba(var(--primary-rgb), 0.08) 0%, transparent 65%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.stat-card {
    padding: 36px 32px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-icon {
    font-size: 2.4rem;
    margin-bottom: 8px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-400);
    line-height: 1;
    letter-spacing: -0.03em;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-300);
    line-height: 1;
    align-self: flex-end;
    margin-bottom: 4px;
    margin-left: -4px;
}

.stat-card:first-child { flex-direction: row; flex-wrap: wrap; text-align: left; }

/* Adjust for row layout */
.stat-card .stat-number,
.stat-card .stat-suffix {
    display: inline;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-num-row {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-quaternary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-bar {
    width: 100%;
    height: 3px;
    background: rgba(var(--primary-rgb), 0.12);
    border-radius: 2px;
    margin-top: 12px;
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-700), var(--primary-500), var(--primary-400));
    border-radius: 2px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
}

.stat-card.revealed .stat-bar-fill { width: var(--bar-width, 80%); }

/* ===================== TESTIMONIOS ===================== */
.testimonials {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.testimonial-card {
    padding: 36px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.testimonial-stars {
    font-size: 1.1rem;
    color: var(--gold);
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.75;
    flex: 1;
    font-style: italic;
    position: relative;
    padding-left: 20px;
    border-left: 3px solid rgba(var(--primary-rgb), 0.4);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.9rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 0 16px rgba(var(--primary-rgb), 0.4);
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-quaternary);
}

/* ===================== NOSOTROS ===================== */
.about {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-img-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
}

.about-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.about-img-wrapper:hover .about-image { transform: scale(1.03); }

.about-img-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(var(--primary-rgb), 0.06) 0%,
        transparent 50%
    );
    pointer-events: none;
}

.about-badge-float {
    position: absolute;
    bottom: -20px;
    right: -20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    background: rgba(0,0,0,0.8) !important;
    backdrop-filter: blur(20px);
}

.badge-emoji { font-size: 2rem; }

.badge-title {
    display: block;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary-400);
}

.badge-sub {
    display: block;
    font-size: 0.75rem;
    color: var(--text-quaternary);
}

.about-content .section-label { display: inline-block; margin-bottom: 16px; }
.about-content .section-title { text-align: left; margin-bottom: 24px; }

.about-text {
    font-size: 1rem;
    color: var(--text-tertiary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-text strong {
    color: var(--primary-400);
    font-weight: 600;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: rgba(var(--primary-rgb), 0.05);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.value-item:hover {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: rgba(var(--primary-rgb), 0.25);
    transform: translateX(4px);
}

.value-icon { font-size: 1.5rem; }

.value-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.value-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
}

.value-desc {
    font-size: 0.78rem;
    color: var(--text-quaternary);
}

/* ===================== HOW IT WORKS ===================== */
.how-it-works {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 0;
}

.step-card {
    padding: 36px 28px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    height: 100%;
}

.step-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    color: rgba(var(--primary-rgb), 0.12);
    line-height: 1;
    letter-spacing: -0.04em;
}

.step-icon { font-size: 2.2rem; }

.step-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-quaternary);
    line-height: 1.65;
}

.step-connector {
    font-size: 1.8rem;
    color: rgba(var(--primary-rgb), 0.3);
    padding: 0 4px;
    flex-shrink: 0;
}

/* ===================== CTA FINAL ===================== */
.cta-section {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.cta-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    height: 500px;
    background: radial-gradient(ellipse at center, rgba(var(--primary-rgb), 0.18) 0%, transparent 65%);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.cta-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary-400);
    padding: 8px 20px;
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    border-radius: 50px;
    margin-bottom: 28px;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 900;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 1.1rem;
    color: var(--text-tertiary);
    line-height: 1.75;
    margin-bottom: 44px;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.pulse-btn {
    animation: pulse-glow 3s ease-in-out infinite;
}

.cta-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: 0.82rem;
    color: var(--text-quaternary);
    flex-wrap: wrap;
}

/* ===================== CONTACTO ===================== */
.contact-section {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 2;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 56px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 24px;
}

.contact-icon { font-size: 1.6rem; }

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-quaternary);
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* CONTACT FORM */
.contact-form {
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(var(--primary-rgb), 0.04);
    border: 1.5px solid rgba(var(--primary-rgb), 0.15);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2371717A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
    background: rgba(var(--primary-rgb), 0.07);
}

.form-success {
    display: none;
    padding: 14px 18px;
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: var(--radius-md);
    color: var(--success);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

.form-success.show { display: block; }

/* ===================== FOOTER ===================== */
.footer {
    position: relative;
    z-index: 2;
    border-top: 1px solid rgba(var(--primary-rgb), 0.1);
    overflow: hidden;
}

.footer-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 200px;
    background: radial-gradient(ellipse at top, rgba(var(--primary-rgb), 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    padding: 72px 0 56px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 52px;
    height: 60px;  /* Proporción del escudo: más alto que ancho */
    object-fit: contain;
    /* Solo sombra, sin filtros de color para preservar el escudo real */
    filter: drop-shadow(0 1px 4px rgba(0,0,0,0.9));
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.footer-brand-name {
    display: block;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.footer-brand-motto {
    display: block;
    font-size: 0.75rem;
    color: var(--primary-400);
    font-weight: 500;
    letter-spacing: 0.08em;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-quaternary);
    line-height: 1.75;
    margin-bottom: 28px;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: var(--radius-sm);
    color: var(--text-quaternary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: rgba(var(--primary-rgb), 0.18);
    border-color: var(--primary-500);
    color: var(--primary-400);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    font-size: 0.875rem;
    color: var(--text-quaternary);
    transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--primary-400); }

.footer-bottom {
    padding: 28px 0;
    border-top: 1px solid rgba(var(--primary-rgb), 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-quaternary);
}

/* ===================== BACK TO TOP ===================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-700), var(--primary-600));
    color: white;
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.4);
    border: 1px solid rgba(var(--primary-rgb), 0.3);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(var(--primary-rgb), 0.6);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1200px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .step-connector { display: none; }
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 1023px) {
    :root { --section-pad: 80px; }

    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 60px; }
    .hero-content { order: 1; }
    .hero-visual { order: 2; max-width: 500px; margin: 0 auto; }
    .hero-ctas { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-subtitle { margin: 0 auto 40px; }

    .card-1, .card-2, .card-3 { display: none; }

    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .about-image { height: 360px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 40px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 767px) {
    :root { --section-pad: 64px; }

    .nav-links, .nav-cta { display: none; }
    .mobile-menu-toggle { display: flex; }

    .hero-title { font-size: 2.5rem; }
    .hero-image { max-width: 320px; }

    .services-grid { grid-template-columns: 1fr; }
    .service-card-flip { height: 340px; }

    .stats-grid { grid-template-columns: 1fr; }

    .steps-grid { grid-template-columns: 1fr; }

    .proof-logos { gap: 24px; }

    .about-values { grid-template-columns: 1fr; }

    .footer-links { grid-template-columns: repeat(2, 1fr); }

    .back-to-top { bottom: 20px; right: 20px; }

    .particle:nth-child(n + 20) { display: none; }

    .cta-buttons { flex-direction: column; }
}

@media (max-width: 480px) {
    .nav-container { padding: 0 20px; }
    .section-container { padding: 0 20px; }
    .hero-container { padding: 0 20px; }
    .proof-container { padding: 0 20px; }
    .contact-form { padding: 28px 24px; }
    .footer-container { padding: 0 20px; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .hero-stat-divider { width: 80px; height: 1px; }
    .footer-links { grid-template-columns: 1fr; }
}