/* ============================================
   BarcelonARCH Landing Page
   Basado en el estilo de Costabella Sailing
   ============================================ */

/* CSS Variables */
:root {
    /* Colores principales - Costabella Sailing */
    --color-navy: #0b1930;
    --color-blue: #2ea3f2;
    --color-blue-dark: #3a84c1;
    --color-gold: #e09f11;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-light: #f5f5f5;
    --color-gray: #666666;
    --color-gray-dark: #333333;

    /* Tipografías */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Karla', Arial, sans-serif;
    --font-nav: 'Montserrat', Arial, sans-serif;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Bordes */
    --border-radius: 9px;
}

/* Reset y Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-navy);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: var(--spacing-xs) 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo a {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 3px;
}

.logo-subtext {
    font-family: var(--font-nav);
    font-size: 0.65rem;
    color: var(--color-gold);
    letter-spacing: 4px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-menu a {
    font-family: var(--font-nav);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-white);
    transition: all var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: rgba(11, 25, 48, 0.98);
    padding: var(--spacing-md);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-menu a {
    font-family: var(--font-nav);
    font-size: 1rem;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-black) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="waves" x="0" y="0" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M0 50 Q25 40 50 50 T100 50" fill="none" stroke="rgba(46,163,242,0.1)" stroke-width="0.5"/><path d="M0 60 Q25 50 50 60 T100 60" fill="none" stroke="rgba(46,163,242,0.08)" stroke-width="0.5"/><path d="M0 70 Q25 60 50 70 T100 70" fill="none" stroke="rgba(46,163,242,0.06)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23waves)"/></svg>');
    background-size: 200px 200px;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-md);
}

.hero-tag {
    display: inline-block;
    font-family: var(--font-nav);
    font-size: 0.85rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 10px;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.hero-title .accent {
    color: var(--color-blue);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 6px;
    margin-bottom: var(--spacing-sm);
}

.hero-date {
    font-family: var(--font-nav);
    font-size: 1rem;
    color: var(--color-white);
    letter-spacing: 3px;
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.6);
    font-family: var(--font-nav);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-nav);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background-color: var(--color-blue);
    color: var(--color-white);
    border-color: var(--color-blue);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-blue);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-navy);
}

.btn.full-width {
    width: 100%;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section-tag {
    display: inline-block;
    font-family: var(--font-nav);
    font-size: 0.75rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: var(--spacing-sm);
}

.section-tag.light {
    color: var(--color-gold);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--color-navy);
    letter-spacing: 3px;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.section-title.light {
    color: var(--color-white);
}

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

.section-header.light .section-title {
    color: var(--color-white);
}

/* ============================================
   INTRO SECTION
   ============================================ */
.intro {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.intro-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 600;
    color: var(--color-blue);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-nav);
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.intro-image {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 4/5;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue-dark) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-nav);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.image-placeholder.small {
    aspect-ratio: 1;
    width: 150px;
    height: 150px;
    border-radius: 50%;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-gray-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-blue);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-blue);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ============================================
   PROGRAM SECTION
   ============================================ */
.program {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, #152238 100%);
}

.program-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.program-day {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.day-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.day-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1;
}

.day-info h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-white);
    margin-bottom: 4px;
}

.day-info span {
    font-family: var(--font-nav);
    font-size: 0.75rem;
    color: var(--color-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.day-schedule li {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.day-schedule li:last-child {
    border-bottom: none;
}

.day-schedule .time {
    font-family: var(--font-nav);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-gold);
    min-width: 50px;
}

.day-schedule .activity {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

/* ============================================
   SPEAKERS SECTION
   ============================================ */
.speakers {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.speaker-card {
    text-align: center;
}

.speaker-image {
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: center;
}

.speaker-name {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 4px;
}

.speaker-role {
    font-family: var(--font-nav);
    font-size: 0.8rem;
    color: var(--color-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   REGISTRATION SECTION
   ============================================ */
.registration {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-gray-light);
}

.registration-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.registration-text {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.pricing {
    margin-bottom: var(--spacing-md);
}

.price-card {
    display: inline-flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue-dark) 100%);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
}

.price-label {
    font-family: var(--font-nav);
    font-size: 0.75rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
}

.price-amount {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 600;
    color: var(--color-white);
    line-height: 1;
}

.price-note {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--spacing-xs);
}

.includes-list {
    margin-top: var(--spacing-md);
}

.includes-list li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray);
}

.includes-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--color-gold);
    border-radius: 50%;
}

/* Form Styles */
.registration-form {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-family: var(--font-nav);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-gray-dark);
    background-color: var(--color-gray-light);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-blue);
    background-color: var(--color-white);
}

.form-group.checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.form-group.checkbox input {
    width: auto;
    margin-top: 4px;
}

.form-group.checkbox label {
    margin-bottom: 0;
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--color-gray);
}

.form-group.checkbox a {
    color: var(--color-blue);
    text-decoration: underline;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, #152238 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.contact-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.contact-label {
    font-family: var(--font-nav);
    font-size: 0.75rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.contact-item a,
.contact-item span {
    font-size: 1.1rem;
    color: var(--color-white);
}

.contact-item a:hover {
    color: var(--color-blue);
}

.map-placeholder {
    aspect-ratio: 16/10;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-nav);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-blue-dark);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-text {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 3px;
    display: block;
}

.footer-logo .logo-subtext {
    font-family: var(--font-nav);
    font-size: 0.6rem;
    color: var(--color-gold);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--color-gold);
    color: var(--color-navy);
}

.social-links svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .features-grid,
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .program-timeline {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .main-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .intro-grid,
    .registration-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .intro-image {
        order: -1;
    }

    .intro-stats {
        justify-content: center;
    }

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

@media (max-width: 767px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 2.5rem;
    }

    .hero-title {
        letter-spacing: 5px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .intro-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}