/* Alt Sound Cave - Premium Alternative Music Platform */
/* Cyberpunk/Nightclub Aesthetic Theme */

/* ======================= */
/* CSS Variables */
/* ======================= */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --text-primary: #ffffff;
    --text-secondary: #b0b0c0;
    --text-muted: #6a6a7a;
    --neon-pink: #ff00ff;
    --neon-cyan: #00ffff;
    --neon-purple: #9d00ff;
    --neon-blue: #0080ff;
    --neon-green: #00ff80;
    --accent-gradient: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    --cyber-gradient: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
    --glow-pink: 0 0 20px rgba(255, 0, 255, 0.5);
    --glow-cyan: 0 0 20px rgba(0, 255, 255, 0.5);
    --glow-purple: 0 0 20px rgba(157, 0, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

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

a:hover {
    color: var(--neon-pink);
    text-shadow: var(--glow-pink);
}

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

ul, ol {
    list-style: none;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.5rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 3vw, 2rem); }
h4 { font-size: clamp(1rem, 2vw, 1.5rem); }

p {
    font-family: var(--font-secondary);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ======================= */
/* Utility Classes */
/* ======================= */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

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

.section-title {
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.neon-text {
    text-shadow: var(--glow-cyan);
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: var(--glow-pink);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(255, 0, 255, 0.6);
    color: var(--text-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--neon-cyan);
    border: 2px solid var(--neon-cyan);
    box-shadow: var(--glow-cyan);
}

.btn-secondary:hover {
    background: var(--neon-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.6);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    border-color: var(--neon-purple);
    color: var(--neon-purple);
}

/* ======================= */
/* Animations */
/* ======================= */
@keyframes glow-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes neon-flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow: 
            0 0 5px var(--neon-cyan),
            0 0 10px var(--neon-cyan),
            0 0 20px var(--neon-cyan),
            0 0 40px var(--neon-cyan);
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ======================= */
/* Header & Navigation */
/* ======================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.header.scrolled {
    padding: 0.5rem 0;
    background: rgba(10, 10, 15, 0.98);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.logo-img {
    width: 300px;
    height: auto;
    max-width: 50vw;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    animation: glow-pulse 2s infinite;
}

.nav-main {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-login {
    margin-left: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

.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);
}

/* ======================= */
/* Footer */
/* ======================= */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 350px;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-brand p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-gradient);
    color: var(--text-primary);
    transform: translateY(-3px);
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-family: var(--font-secondary);
    color: var(--text-muted);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--neon-cyan);
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ======================= */
/* Cards */
/* ======================= */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-purple);
    box-shadow: 0 20px 60px rgba(157, 0, 255, 0.2);
}

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 15, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition-medium);
}

.card:hover .card-overlay {
    opacity: 1;
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card-text {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.card-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.card-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ======================= */
/* Grid Layouts */
/* ======================= */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

/* ======================= */
/* Forms */
/* ======================= */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
}

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

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-error {
    color: #ff4444;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error .form-input,
.form-group.error .form-textarea {
    border-color: #ff4444;
}

.form-group.error .form-error {
    display: block;
}

.form-success {
    background: linear-gradient(135deg, rgba(0, 255, 128, 0.1), rgba(0, 255, 255, 0.1));
    border: 1px solid var(--neon-green);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    display: none;
}

.form-success.show {
    display: block;
    animation: slide-up 0.5s ease;
}

.form-success h3 {
    color: var(--neon-green);
    margin-bottom: 1rem;
}

/* ======================= */
/* Page Hero */
/* ======================= */
.page-hero {
    padding: 10rem 0 4rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    margin-bottom: 1.5rem;
}

.page-hero .breadcrumb {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-secondary);
    color: var(--text-muted);
}

.page-hero .breadcrumb a {
    color: var(--text-muted);
}

.page-hero .breadcrumb span {
    color: var(--neon-cyan);
}

/* ======================= */
/* Scrollbar */
/* ======================= */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-purple);
}

/* ======================= */
/* Responsive Design */
/* ======================= */
@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .section {
        padding: 4rem 0;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-main {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        transition: var(--transition-medium);
        border-left: 1px solid var(--border-color);
    }
    
    .nav-main.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-login {
        margin-left: 0;
        margin-top: 2rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 1rem;
    }
    
    .page-hero {
        padding: 8rem 0 3rem;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 0.875rem 1.75rem;
        font-size: 0.8rem;
    }
    
    .logo-text {
        font-size: 1.2rem;
        letter-spacing: 1px;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
}

/* ======================= */
/* Background Effects */
/* ======================= */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 0, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 0, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

.bg-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

.bg-glow-1 {
    top: -200px;
    left: -200px;
    background: var(--neon-purple);
}

.bg-glow-2 {
    bottom: -200px;
    right: -200px;
    background: var(--neon-cyan);
}

/* ======================= */
/* Loading Overlay */
/* ======================= */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--neon-pink);
    border-radius: 50%;
    animation: rotate-slow 1s linear infinite;
}

/* ======================= */
/* Accessibility - Focus Visible Styles */
/* ======================= */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}

.form-input:focus-visible,
.form-textarea:focus-visible,
select.form-input:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 4px;
    border-radius: 4px;
}

.nav-link:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 4px;
}

.social-link:focus-visible,
.social-login-btn:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}

.checkbox-label input:focus-visible + .checkmark {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}