/* ==========================================================================
   Vocalist Spring Haeun - Custom Premium Stylesheet
   Theme: Clear Blue Sky & Warm Spring Day
   ========================================================================== */

/* 1. Design System & Variables */
:root {
    /* Color Palette */
    --color-sky-light: #f0f9ff;     /* Light Sky Blue (Backgrounds) */
    --color-sky-primary: #0ea5e9;   /* Clear Sky Blue (Core Brand Color) */
    --color-sky-dark: #0369a1;      /* Deep Sky Blue (Hover/Dark text) */
    --color-pink-light: #fdf2f8;    /* Light Cherry Blossom (Secondary Background) */
    --color-pink-primary: #f472b6;  /* Soft Cherry Pink (Accents) */
    --color-pink-dark: #db2777;      /* Vivid Cherry Pink (Highlight/CTAs) */
    --color-gold: #fef08a;           /* Soft Sunlight Gold */
    --color-gold-dark: #ca8a04;      /* Deep Gold */
    
    /* Neutral Colors */
    --color-bg-base: #f8fafc;        /* Off-white canvas */
    --color-text-main: #1e293b;      /* Slate 800 (Softer than black) */
    --color-text-muted: #64748b;     /* Slate 500 (Subtitles & Muted text) */
    --color-white: #ffffff;
    
    /* Glassmorphism properties */
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(14, 165, 233, 0.08);
    --glass-blur: blur(12px);

    /* Fonts */
    --font-sans: 'Outfit', 'Noto Sans KR', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    /* Layout */
    --header-height: 80px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

/* 2. Reset & General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Canvas for Falling Cherry Blossoms */
#blossom-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
}

/* Common Layout Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

/* Typography Utility */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
}

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

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

/* 3. Reusable Components & Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-weight: 600;
    border-radius: 50px;
    font-size: 1rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-sky-primary) 0%, var(--color-pink-primary) 100%);
    color: var(--color-white);
    box-shadow: 0 10px 20px -5px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(14, 165, 233, 0.4);
    background: linear-gradient(135deg, var(--color-sky-dark) 0%, var(--color-pink-dark) 100%);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-sky-dark);
    border: 2px solid rgba(14, 165, 233, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    border-color: var(--color-sky-primary);
    background-color: var(--color-sky-light);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

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

.btn-outline:hover {
    background-color: var(--color-sky-primary);
    color: var(--color-white);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.875rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.icon-left {
    margin-right: 8px;
}

.icon-right {
    margin-left: 8px;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 24px;
    padding: 30px;
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    box-shadow: 0 12px 40px 0 rgba(14, 165, 233, 0.12);
}

/* Section Header Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.section-subtitle {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-pink-primary);
    margin-bottom: 8px;
    display: inline-block;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text-main);
    font-family: var(--font-sans);
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-sky-primary), var(--color-pink-primary));
    margin: 15px auto 0;
    border-radius: 2px;
}

/* 4. Header & Navigation */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 100;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
}

#main-header.scrolled {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    height: 70px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo .brand-name {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-sky-dark);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-sky-dark) 0%, var(--color-pink-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-main);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-sky-primary), var(--color-pink-primary));
    transition: var(--transition-fast);
}

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

.nav-link.active {
    color: var(--color-sky-primary);
    font-weight: 700;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 5. Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-image: url('./assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, 
        rgba(240, 249, 255, 0.4) 0%, 
        rgba(253, 242, 248, 0.3) 60%, 
        var(--color-bg-base) 100%
    );
    z-index: 1;
}

.hero-container {
    z-index: 2;
}

.hero-content {
    max-width: 650px;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-subtitle {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--color-sky-primary);
    text-transform: uppercase;
    margin-bottom: 20px;
    display: inline-block;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-text-main);
    line-height: 1.25;
    margin-bottom: 24px;
    font-family: var(--font-sans);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
}

.scroll-arrow {
    font-size: 1.5rem;
    color: var(--color-sky-primary);
    animation: bounce 2s infinite;
    display: inline-block;
}

/* 6. About Me Section */
.about-section {
    padding: 120px 0;
    background-color: var(--color-bg-base);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1.3fr;
    gap: 70px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    padding: 10px;
}

.about-image-card {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.08);
}

.about-image {
    width: 100%;
    height: 480px;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

.image-accent-border {
    position: absolute;
    top: -10px;
    left: -10px;
    right: 10px;
    bottom: 10px;
    border: 3px solid var(--color-sky-light);
    border-radius: 30px;
    z-index: -1;
    pointer-events: none;
}

.about-intro-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-sky-dark);
    margin-bottom: 24px;
    line-height: 1.4;
}

.about-bio {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 35px 0;
}

.info-card {
    background: var(--color-white);
    padding: 24px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(14, 165, 233, 0.05);
    transition: var(--transition-smooth);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(14, 165, 233, 0.06);
    border-color: rgba(14, 165, 233, 0.15);
}

.info-icon {
    font-size: 1.5rem;
    color: var(--color-sky-primary);
    margin-bottom: 15px;
}

.info-card h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--color-text-main);
}

.info-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.signature-quote {
    position: relative;
    padding-left: 30px;
    margin-top: 30px;
    border-left: 4px solid var(--color-pink-primary);
}

.quote-mark {
    position: absolute;
    left: 10px;
    top: -20px;
    font-size: 4rem;
    color: rgba(244, 114, 182, 0.15);
    font-family: var(--font-serif);
    line-height: 1;
}

.signature-quote p {
    font-style: italic;
    color: var(--color-text-main);
    font-size: 1.05rem;
}

/* 7. Vocal Portfolio Section (Custom Music Player) */
.portfolio-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--color-bg-base) 0%, var(--color-sky-light) 50%, var(--color-pink-light) 100%);
}

.portfolio-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: stretch;
}

/* Visual Player Panel */
.player-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    position: relative;
}

.player-visualizer-container {
    height: 220px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.7) 0%, rgba(244, 114, 182, 0.7) 100%), url('./assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    border-radius: 16px;
    position: relative;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.visualizer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    z-index: 1;
}

.now-playing-info {
    position: relative;
    z-index: 2;
    color: var(--color-white);
}

.now-playing-info .badge {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 8px;
}

.now-playing-info h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.now-playing-info p {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* Waveform Visualizer simulation */
.sound-wave-visualizer {
    position: absolute;
    bottom: 20px;
    left: 24px;
    right: 24px;
    height: 60px;
    display: flex;
    align-items: flex-end;
    gap: 4px;
    z-index: 2;
}

.wave-bar {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 4px 4px 0 0;
    height: 5%;
    transition: height 0.1s ease;
}

/* Animation triggers via JS when active */
.sound-wave-visualizer.playing .wave-bar {
    animation: waveBounce 1.2s ease-in-out infinite alternate;
}

.sound-wave-visualizer.playing .wave-bar:nth-child(2n) { animation-delay: 0.15s; }
.sound-wave-visualizer.playing .wave-bar:nth-child(3n) { animation-delay: 0.3s; }
.sound-wave-visualizer.playing .wave-bar:nth-child(4n) { animation-delay: 0.45s; }
.sound-wave-visualizer.playing .wave-bar:nth-child(5n) { animation-delay: 0.2s; }

/* Control area of player */
.player-controls-wrapper {
    margin-top: 30px;
}

.progress-container {
    background-color: rgba(14, 165, 233, 0.1);
    height: 6px;
    border-radius: 10px;
    position: relative;
    cursor: pointer;
    margin-bottom: 12px;
}

.progress-bar {
    background: linear-gradient(90deg, var(--color-sky-primary), var(--color-pink-primary));
    width: 0%;
    height: 100%;
    border-radius: 10px;
    position: absolute;
    top: 0;
    left: 0;
}

.progress-knob {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-pink-primary);
    border: 2px solid var(--color-white);
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.2s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.progress-container:hover .progress-knob {
    opacity: 1;
}

.player-time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 24px;
}

.player-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin-bottom: 24px;
}

.player-btn {
    border: none;
    outline: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.btn-primary-play {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sky-primary) 0%, var(--color-pink-primary) 100%);
    color: var(--color-white);
    font-size: 1.4rem;
    box-shadow: 0 6px 15px rgba(14, 165, 233, 0.25);
}

.btn-primary-play:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.35);
}

.btn-secondary-play {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--color-text-muted);
    font-size: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
}

.btn-secondary-play:hover {
    color: var(--color-sky-primary);
    transform: scale(1.05);
    border-color: rgba(14, 165, 233, 0.2);
}

.volume-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.volume-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.volume-btn:hover {
    color: var(--color-sky-primary);
}

#volume-slider {
    width: 100px;
    height: 4px;
    border-radius: 5px;
    outline: none;
    accent-color: var(--color-sky-primary);
    background-color: rgba(14, 165, 233, 0.1);
    cursor: pointer;
}

/* Playlist Panel */
.playlist-card {
    display: flex;
    flex-direction: column;
}

.playlist-header {
    font-size: 1.25rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(14, 165, 233, 0.1);
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

.playlist-tracks {
    list-style: none;
    overflow-y: auto;
    max-height: 300px;
    padding-right: 5px;
}

/* Track list scrollbar custom */
.playlist-tracks::-webkit-scrollbar {
    width: 4px;
}
.playlist-tracks::-webkit-scrollbar-track {
    background: rgba(14, 165, 233, 0.05);
    border-radius: 10px;
}
.playlist-tracks::-webkit-scrollbar-thumb {
    background: rgba(14, 165, 233, 0.2);
    border-radius: 10px;
}

.track-item {
    display: flex;
    align-items: center;
    padding: 16px;
    border-radius: 14px;
    margin-bottom: 10px;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: var(--transition-smooth);
}

.track-item:hover {
    background-color: rgba(255, 255, 255, 0.8);
    transform: translateX(4px);
    border-color: rgba(14, 165, 233, 0.1);
}

.track-item.active {
    background-color: var(--color-white);
    border-color: rgba(14, 165, 233, 0.2);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.05);
}

.track-number {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-sky-primary);
    width: 30px;
}

.track-meta {
    flex: 1;
}

.track-title {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 2px;
}

.track-artist {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.track-length {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-right: 15px;
}

.playing-indicator {
    color: var(--color-pink-primary);
    display: none;
    font-size: 0.9rem;
}

.track-item.active .playing-indicator {
    display: block;
}

.playlist-notice {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: auto;
    padding-top: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 8. Visual Gallery Section */
.gallery-section {
    padding: 120px 0;
    background-color: var(--color-bg-base);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.2fr;
    gap: 24px;
    align-items: stretch;
}

.gallery-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.02);
    height: 350px;
}

.gallery-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.gallery-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 24px;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.6) 100%);
    color: var(--color-white);
    transform: translateY(10px);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: 2;
}

.gallery-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-sky-light);
    margin-bottom: 6px;
    display: inline-block;
}

.gallery-info h4 {
    font-size: 1.15rem;
    font-weight: 600;
}

.gallery-zoom-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--color-sky-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition-smooth);
    z-index: 2;
}

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

.gallery-item:hover .gallery-info {
    transform: translateY(0);
    opacity: 1;
}

.gallery-item:hover .gallery-zoom-icon {
    opacity: 1;
    transform: scale(1);
}

/* Custom Text Card in Gallery */
.gallery-item.text-card {
    cursor: default;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 30px;
}

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

.card-quote-icon {
    font-size: 2.25rem;
    color: var(--color-pink-primary);
    margin-bottom: 20px;
    opacity: 0.7;
}

.gallery-item.text-card p {
    font-size: 1.05rem;
    color: var(--color-text-main);
    line-height: 1.8;
    margin-bottom: 16px;
    font-style: italic;
}

.card-author {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* 9. Contact Section */
.contact-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--color-bg-base) 0%, var(--color-pink-light) 50%, var(--color-sky-light) 100%);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-info-title {
    font-size: 1.75rem;
    color: var(--color-sky-dark);
    margin-bottom: 16px;
}

.contact-info-desc {
    color: var(--color-text-muted);
    margin-bottom: 30px;
    font-size: 0.95rem;
    line-height: 1.7;
}

.contact-details {
    list-style: none;
}

.contact-details li {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.contact-icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: var(--color-white);
    color: var(--color-sky-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(14, 165, 233, 0.05);
    margin-right: 18px;
}

.contact-detail-text span {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.contact-detail-text a, 
.contact-detail-text strong {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-main);
}

.contact-detail-text a:hover {
    color: var(--color-sky-primary);
}

.social-links-container {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(14, 165, 233, 0.1);
}

.social-links-container h4 {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-white);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.social-links a:hover {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-sky-primary) 0%, var(--color-pink-primary) 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(14, 165, 233, 0.15);
}

/* Contact Form Details */
.contact-form-panel form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 8px;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid rgba(14, 165, 233, 0.1);
    background-color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text-main);
    transition: var(--transition-fast);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-sky-primary);
    background-color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15);
}

.form-group textarea {
    resize: none;
}

/* 10. Footer */
#main-footer {
    background-color: var(--color-white);
    padding: 40px 0;
    border-top: 1px solid rgba(14, 165, 233, 0.05);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.copyright {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.designer-credit {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.designer-credit i {
    color: var(--color-pink-primary);
    animation: heartBeat 1.2s infinite;
}

/* 11. Lightbox Modal for Gallery Image Popups */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    padding-top: 80px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-modal.show {
    display: block;
    opacity: 1;
}

.lightbox-content-wrapper {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 800px;
    position: relative;
    animation: zoomIn 0.3s ease;
}

.lightbox-content {
    width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.lightbox-caption {
    margin: auto;
    display: block;
    width: 100%;
    text-align: center;
    color: var(--color-white);
    padding: 15px 0;
    font-size: 1.1rem;
    font-weight: 500;
}

.lightbox-close {
    position: absolute;
    top: 25px;
    right: 35px;
    color: var(--color-white);
    font-size: 40px;
    font-weight: 300;
    transition: var(--transition-fast);
    cursor: pointer;
    z-index: 1001;
}

.lightbox-close:hover {
    color: var(--color-pink-primary);
}

/* 12. Toast Notification */
.toast-message {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #10b981;
    color: var(--color-white);
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    transform: translateY(100px);
    opacity: 0;
    z-index: 9999;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.toast-message.show {
    transform: translateY(0);
    opacity: 1;
}

/* 13. Keyframes & Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes waveBounce {
    0% {
        height: 5%;
    }
    100% {
        height: 85%;
    }
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@keyframes zoomIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* 14. Responsive Layouts (Media Queries) */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-image {
        height: 400px;
    }
    .portfolio-layout {
        grid-template-columns: 1fr;
    }
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
    }
    .gallery-item.text-card {
        grid-column: span 2;
        height: auto;
        padding: 50px 30px;
    }
    .contact-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }

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

    #main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
        padding: 24px;
        transform: translateY(-150%);
        transition: var(--transition-smooth);
        z-index: 99;
    }

    #main-nav.open {
        transform: translateY(0);
    }

    #main-nav ul {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .header-actions {
        display: none;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item.text-card {
        grid-column: span 1;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .hero-buttons .btn {
        width: 100%;
    }
    .about-info-cards {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 1.75rem;
    }
}