/* =====================================================
   GEEKADVENT - ESTILOS COMPLETOS REDISEÑADOS
   Paleta: Azul Pastel | Morado Pastel | Blanco | Cian
   ===================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores Principales */
    --primary: #5B9BD5;        /* Azul Pastel Medio */
    --secondary: #A8D8EA;      /* Azul Cian Claro */
    --accent: #9575CD;         /* Morado Pastel */
    --light: #E8F4F8;          /* Blanco Azulado */
    --white: #FFFFFF;          /* Blanco Puro */
    
    /* Tonos Oscuros */
    --dark-bg: #1A2F4A;        /* Azul Oscuro Base */
    --dark-surface: #243F5F;   /* Azul Oscuro Superficie */
    --dark-border: #3A5A7F;    /* Azul Oscuro Borde */
    
    /* Texto */
    --text-primary: #F5F7FA;   /* Blanco Casi Puro */
    --text-secondary: #B8C9D9; /* Gris Azulado */
    
    /* Efectos */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.35);
    --glow: 0 0 20px rgba(91, 155, 213, 0.3);
    
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1F3A50 50%, var(--dark-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ========== FONDO DE NIEVE ========== */
.snow-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, var(--white), rgba(255,255,255,0)),
        radial-gradient(2px 2px at 60px 70px, var(--white), rgba(255,255,255,0)),
        radial-gradient(1px 1px at 50px 50px, var(--white), rgba(255,255,255,0)),
        radial-gradient(1px 1px at 130px 80px, var(--white), rgba(255,255,255,0)),
        radial-gradient(2px 2px at 90px 10px, var(--white), rgba(255,255,255,0));
    background-repeat: repeat;
    background-size: 200px 200px;
    opacity: 0.3;
}

.snow-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

/* ========== HEADER / NAVEGACIÓN ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 47, 74, 0.95);
    backdrop-filter: blur(15px);
    border-bottom: 3px solid var(--primary);
    box-shadow: var(--shadow-lg);
    padding: 0;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 8px rgba(91, 155, 213, 0.6));
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.navbar {
    display: flex;
    gap: 2.5rem;
    flex-grow: 1;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.7rem 1.2rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: translateX(-50%);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(91, 155, 213, 0.1);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 100%;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.btn {
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--dark-bg);
    box-shadow: var(--glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(91, 155, 213, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary);
    border: 2px solid var(--secondary);
}

.btn-secondary:hover {
    background: rgba(168, 216, 234, 0.15);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--dark-border);
}

.btn-outline:hover {
    color: var(--secondary);
    border-color: var(--secondary);
    background: rgba(168, 216, 234, 0.1);
}

.btn-filled {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--dark-bg);
}

.btn-filled:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
    z-index: 1001;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========== HERO SECTION ========== */
.hero {
    margin-top: 80px;
    padding: 5rem 2rem;
    position: relative;
    z-index: 10;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
}

.hero-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    width: 100%;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    color: var(--text-primary);
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .block {
    display: block;
    color: var(--accent);
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 90%;
}

.hero-stats-inline {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.stat-inline {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
}

.stat-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 0.2rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.hero-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.calendar-showcase {
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.1), rgba(149, 117, 205, 0.1));
    border: 2px solid var(--primary);
    border-radius: 16px;
    padding: 3rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

.cal-day {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(91, 155, 213, 0.15);
    border: 2px solid var(--dark-border);
    border-radius: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.cal-day:hover {
    transform: scale(1.08);
    border-color: var(--secondary);
}

.cal-day.completed {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--dark-bg);
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(91, 155, 213, 0.5);
}

.cal-day.active {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--dark-bg);
    border-color: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.cal-day.locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.calendar-label {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========== FEATURES SECTION ========== */
.features {
    padding: 6rem 2rem;
    position: relative;
    z-index: 10;
    background: linear-gradient(180deg, rgba(91, 155, 213, 0.05) 0%, transparent 100%);
}

.features-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: linear-gradient(135deg, rgba(36, 63, 95, 0.6), rgba(58, 90, 127, 0.4));
    border: 2px solid var(--dark-border);
    border-radius: 14px;
    padding: 2rem;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(91, 155, 213, 0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(91, 155, 213, 0.2);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-top {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    min-width: 60px;
}

.feature-card h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
}

.feature-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.feature-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--dark-bg);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

/* ========== STATS SECTION ========== */
.stats-section {
    padding: 5rem 2rem;
    position: relative;
    z-index: 10;
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.1), rgba(149, 117, 205, 0.1));
}

.stats-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-block {
    background: linear-gradient(135deg, rgba(36, 63, 95, 0.8), rgba(58, 90, 127, 0.6));
    border: 2px solid var(--primary);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(91, 155, 213, 0.3);
}

.stat-big {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-small {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
}

/* ========== HOW SECTION ========== */
.how-section {
    padding: 6rem 2rem;
    position: relative;
    z-index: 10;
}

.how-section .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.steps-timeline {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.steps-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary), var(--secondary), var(--accent));
    transform: translateX(-50%);
}

.step-item {
    margin-bottom: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.step-item[data-step="2"],
.step-item[data-step="4"] {
    direction: rtl;
}

.step-item[data-step="2"] .step-content,
.step-item[data-step="4"] .step-content {
    direction: ltr;
}

.step-dot {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: 4px solid var(--dark-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    color: var(--dark-bg);
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(91, 155, 213, 0.4);
}

.step-content h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 0.8rem;
    font-weight: 800;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========== INFO SECTION ========== */
.info-section {
    padding: 4rem 2rem;
    position: relative;
    z-index: 10;
}

.info-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    border-radius: 12px;
    padding: 2.5rem;
    border-left: 5px solid;
    transition: all 0.3s ease;
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.info-card p {
    line-height: 1.8;
    font-size: 0.95rem;
}

.info-blue {
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.15), rgba(168, 216, 234, 0.1));
    border-left-color: var(--primary);
    color: var(--text-secondary);
}

.info-blue h3 {
    color: var(--primary);
}

.info-purple {
    background: linear-gradient(135deg, rgba(149, 117, 205, 0.15), rgba(200, 150, 230, 0.1));
    border-left-color: var(--accent);
    color: var(--text-secondary);
}

.info-purple h3 {
    color: var(--accent);
}

.info-cyan {
    background: linear-gradient(135deg, rgba(168, 216, 234, 0.15), rgba(200, 240, 255, 0.1));
    border-left-color: var(--secondary);
    color: var(--text-secondary);
}

.info-cyan h3 {
    color: var(--secondary);
}

.info-white {
    background: linear-gradient(135deg, rgba(232, 244, 248, 0.1), rgba(255, 255, 255, 0.05));
    border-left-color: var(--light);
    color: var(--text-secondary);
}

.info-white h3 {
    color: var(--light);
}

/* ========== CTA FINAL SECTION ========== */
.cta-final {
    padding: 5rem 2rem;
    position: relative;
    z-index: 10;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin: 4rem 2rem;
    border-radius: 20px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content {
    text-align: center;
}

.cta-final h2 {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--dark-bg);
    margin-bottom: 1rem;
}

.cta-final p {
    font-size: 1.15rem;
    color: rgba(26, 47, 74, 0.85);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-final .btn-primary {
    background: var(--dark-bg);
    color: var(--primary);
}

.cta-final .btn-secondary {
    background: rgba(26, 47, 74, 0.2);
    color: var(--dark-bg);
    border-color: var(--dark-bg);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--dark-bg);
    border-top: 3px solid var(--primary);
    padding: 4rem 2rem 2rem;
    position: relative;
    z-index: 10;
}

.footer-main {
    max-width: 1400px;
    margin: 0 auto 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1.2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-highlight {
    color: var(--secondary);
    font-weight: 700;
    margin-top: 1rem;
}

.footer-links,
.footer-tech,
.footer-features {
    list-style: none;
}

.footer-links li,
.footer-tech li,
.footer-features li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--secondary);
    transform: translateX(4px);
}

.footer-tech li,
.footer-features li {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-divider {
    max-width: 1400px;
    margin: 0 auto 2rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--dark-border), transparent);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 2rem 0 0;
    border-top: 1px solid var(--dark-border);
}

.footer-credit {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--dark-bg);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .steps-timeline::before {
        display: none;
    }

    .step-item {
        grid-template-columns: 1fr;
        direction: ltr !important;
    }

    .step-item[data-step="2"] .step-content,
    .step-item[data-step="4"] .step-content {
        direction: ltr;
    }

    .step-dot {
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 1rem;
        gap: 1rem;
    }

    .navbar {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .auth-buttons {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-surface);
        border-bottom: 2px solid var(--primary);
        padding: 1rem;
        gap: 0.8rem;
    }

    .auth-buttons.mobile-active {
        display: flex;
    }

    .navbar.mobile-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-surface);
        border-bottom: 2px solid var(--primary);
        padding: 1rem;
        gap: 0.5rem;
    }

    .hero {
        min-height: auto;
        padding: 3rem 1.5rem;
        margin-top: 70px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .hero-right {
        margin-top: 2rem;
    }

    .calendar-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .cal-day {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-credit {
        order: 2;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.3rem;
        letter-spacing: 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        max-width: 100%;
    }

    .calendar-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.8rem;
    }

    .cal-day {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }

    .hero-stats-inline {
        flex-direction: column;
        gap: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .cta-final {
        margin: 2rem 1rem;
        padding: 3rem 1.5rem;
    }

    .cta-final h2 {
        font-size: 1.8rem;
    }

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

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