/* ============================================
   Andrés Ovalle - Estudio de Piano
   Main Stylesheet
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-primary-dark: #1a1f2e;
    --color-primary-darker: #12151f;
    --color-cream: #f5f0e8;
    --color-gold: #c9a862;
    --color-gold-light: #d4b87a;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-whatsapp: #25D366;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

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

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

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

    /* Z-index layers */
    --z-navbar: 1000;
    --z-whatsapp: 9999;
    --z-overlay: 100;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-cream);
    background-color: var(--color-primary-dark);
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--color-gold);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

.lead {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

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

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-navbar);
    padding: var(--spacing-sm) 0;
    background: transparent;
    transition: background var(--transition-normal), padding var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 31, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) 0;
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    z-index: 1001;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: height var(--transition-normal);
}

.navbar.scrolled .logo-img {
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

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

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-cream);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-cream);
    transition: transform var(--transition-normal);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu */
@media (max-width: 992px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: var(--color-primary-darker);
        transition: right var(--transition-normal);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.2rem;
        padding: var(--spacing-sm);
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -100px;
    left: 0;
    width: 100%;
    height: calc(100% + 200px);
    background-image: url('../img/photos/page1-img10.jpeg');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(26, 31, 46, 0.4) 0%,
        rgba(26, 31, 46, 0.6) 50%,
        rgba(26, 31, 46, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: var(--spacing-md);
}

.hero-logo {
    max-width: 400px;
    width: 80%;
    margin: 0 auto var(--spacing-md);
}

.hero-location {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xl);
}

/* Scroll Indicator */
.scroll-indicator {
    display: inline-block;
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-arrow {
    display: block;
    width: 30px;
    height: 30px;
    border-right: 2px solid var(--color-cream);
    border-bottom: 2px solid var(--color-cream);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
    40% { transform: rotate(45deg) translateY(10px); }
    60% { transform: rotate(45deg) translateY(5px); }
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--spacing-lg) 0;
}

/* Remove top padding when section follows another section (avoid double spacing) */
.section + .section {
    padding-top: 0;
}

.section-dark {
    background-color: var(--color-primary-dark);
}

.section-cream {
    background-color: var(--color-cream);
    color: var(--color-primary-dark);
}

/* Section spacing modifiers */
.section-pt-sm { padding-top: var(--spacing-sm) !important; }
.section-pt-md { padding-top: var(--spacing-md) !important; }
.section-pt-lg { padding-top: var(--spacing-lg) !important; }
.section-pb-sm { padding-bottom: var(--spacing-sm) !important; }
.section-pb-md { padding-bottom: var(--spacing-md) !important; }
.section-pb-lg { padding-bottom: var(--spacing-lg) !important; }
.section-pt-0 { padding-top: 0 !important; }
.section-pb-0 { padding-bottom: 0 !important; }

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

.section-subtitle {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-gold);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.section-title-dark {
    color: var(--color-primary-dark);
}

.title-line {
    width: 80px;
    height: 3px;
    background: var(--color-gold);
    margin: 0 auto;
}

.title-line-gold {
    background: var(--color-gold);
}

/* ============================================
   About Section
   ============================================ */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
}

.about-text p {
    margin-bottom: var(--spacing-sm);
}

.about-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

@media (min-width: 576px) {
    .about-gallery {
        grid-template-columns: 1fr 1fr;
    }
}

.gallery-item {
    overflow: hidden;
    border-radius: 4px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}


/* ============================================
   Profile Sections (Director & Team)
   ============================================ */
.profile-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

@media (min-width: 768px) {
    .profile-content {
        grid-template-columns: 300px 1fr;
    }

    .profile-reverse {
        grid-template-columns: 1fr 300px;
    }

    .profile-reverse .profile-image {
        order: 2;
    }

    .profile-reverse .profile-text {
        order: 1;
    }
}

.profile-image {
    text-align: center;
}

.profile-image img {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    border-radius: 4px;
    box-shadow: var(--shadow-lg);
}

.profile-name {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 500;
    margin-top: var(--spacing-sm);
    color: var(--color-gold);
}

.profile-name-dark {
    color: var(--color-primary-dark);
}

.profile-text p {
    margin-bottom: var(--spacing-sm);
}

.profile-text-dark {
    color: var(--color-primary-dark);
}

/* Quotes */
.quote {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-gold);
    background: rgba(201, 168, 98, 0.1);
    font-style: italic;
}

.quote p {
    margin: 0;
    font-family: var(--font-heading);
    font-size: 1.1rem;
}

.quote-dark {
    background: rgba(26, 31, 46, 0.1);
    border-color: var(--color-primary-dark);
}

/* ============================================
   Objetivo Section
   ============================================ */
.objetivo-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.objetivo-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.gallery-grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
}

/* ============================================
   Estudio Section
   ============================================ */
.estudio-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.estudio-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   Packages Section
   ============================================ */
.packages-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .packages-content {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
    }
}

.package-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.package-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.package-featured {
    border: 2px solid var(--color-gold);
}

@media (min-width: 768px) {
    .package-featured {
        transform: scale(1.05);
    }

    .package-featured:hover {
        transform: scale(1.05) translateY(-8px);
    }
}

.package-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-gold);
    color: var(--color-primary-dark);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 16px;
    border-radius: 20px;
    white-space: nowrap;
}

.package-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    color: var(--color-gold);
}

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

.package-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.package-tagline {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.package-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(26, 31, 46, 0.8);
    flex-grow: 1;
}

/* ============================================
   Summer Camp Section
   ============================================ */
.camp-content {
    max-width: 1000px;
    margin: 0 auto;
}

.gallery-masonry {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .gallery-masonry {
        grid-template-columns: repeat(3, 1fr);
    }

    .gallery-item-large {
        grid-column: span 2;
    }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-primary-darker);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.footer-brand {
    text-align: center;
}

@media (min-width: 768px) {
    .footer-brand {
        text-align: left;
    }
}

.footer-logo {
    max-width: 250px;
    margin: 0 auto var(--spacing-sm);
}

@media (min-width: 768px) {
    .footer-logo {
        margin: 0 0 var(--spacing-sm);
    }
}

.footer-location {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-gold);
    letter-spacing: 0.1em;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(245, 240, 232, 0.1);
    font-size: 0.9rem;
    color: rgba(245, 240, 232, 0.6);
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.whatsapp-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--color-whatsapp);
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-whatsapp);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    animation: pulse 3s infinite;
    padding: 12px 20px 12px 16px;
}

.whatsapp-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
    color: var(--color-white);
}

.whatsapp-btn svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.whatsapp-text {
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

/* Mobile: stack icon and text vertically */
@media (max-width: 576px) {
    .whatsapp-btn {
        flex-direction: column;
        gap: 4px;
        padding: 10px 14px;
        border-radius: 24px;
        right: 12px;
        bottom: 12px;
    }

    .whatsapp-btn svg {
        width: 24px;
        height: 24px;
    }

    .whatsapp-text {
        font-size: 0.7rem;
        white-space: normal;
        text-align: center;
        line-height: 1.2;
        max-width: 90px;
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 32px rgba(37, 211, 102, 0.6);
    }
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .parallax-bg {
        background-attachment: scroll;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-gold { color: var(--color-gold); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }