/* ═══════════════════════════════════════════════════════════
   SpotifyScraper - Cyberpunk Styling
   ═══════════════════════════════════════════════════════════ */

/* CSS Custom Properties */
:root {
    --cyan: #00ffff;
    --cyan-dim: #00b8b8;
    --magenta: #ff00ff;
    --magenta-dim: #b800b8;
    --yellow: #ffff00;
    --yellow-dim: #b8b800;
    --spotify-green: #1db954;
    --dark-bg: #0a0a0f;
    --card-bg: rgba(15, 15, 25, 0.85);
    --card-border: rgba(0, 255, 255, 0.2);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-dim: rgba(255, 255, 255, 0.4);

    --glow-cyan: 0 0 10px var(--cyan), 0 0 20px var(--cyan), 0 0 40px var(--cyan-dim);
    --glow-magenta: 0 0 10px var(--magenta), 0 0 20px var(--magenta), 0 0 40px var(--magenta-dim);
    --glow-yellow: 0 0 10px var(--yellow), 0 0 20px var(--yellow), 0 0 40px var(--yellow-dim);
    --glow-spotify: 0 0 10px var(--spotify-green), 0 0 20px var(--spotify-green);

    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

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

/* ═══════════════════════════════════════════════════════════
   Animated Background
   ═══════════════════════════════════════════════════════════ */

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

/* Neon Circles */
.neon-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.circle-1 {
    width: 500px;
    height: 500px;
    background: var(--cyan);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.circle-2 {
    width: 400px;
    height: 400px;
    background: var(--magenta);
    bottom: -150px;
    right: -100px;
    animation-delay: -7s;
}

.circle-3 {
    width: 300px;
    height: 300px;
    background: var(--yellow);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    opacity: 0.2;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

/* Grid Overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Scanline */
.scanline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.1) 2px,
        rgba(0, 0, 0, 0.1) 4px
    );
    pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════
   Container & Layout
   ═══════════════════════════════════════════════════════════ */

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

/* ═══════════════════════════════════════════════════════════
   Header
   ═══════════════════════════════════════════════════════════ */

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.logo-spotify {
    color: var(--spotify-green);
    text-shadow: var(--glow-spotify);
    animation: pulse-glow 2s ease-in-out infinite;
}

.logo-scraper {
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
}

@keyframes pulse-glow {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.2);
    }
}

.tagline {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════
   User Status
   ═══════════════════════════════════════════════════════════ */

.user-status {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    border: 1px solid var(--spotify-green);
}

.user-name {
    color: var(--spotify-green);
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   Cards (Glassmorphism)
   ═══════════════════════════════════════════════════════════ */

.card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.title-icon {
    color: var(--cyan);
    font-size: 0.8rem;
}

.youtube-icon {
    color: #ff0000;
}

.spotify-icon {
    color: var(--spotify-green);
}

/* ═══════════════════════════════════════════════════════════
   Input & Buttons
   ═══════════════════════════════════════════════════════════ */

.input-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.neon-input {
    flex: 1;
    min-width: 200px;
    padding: 1rem 1.25rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid var(--card-border);
    border-radius: 8px;
    outline: none;
    transition: all 0.3s ease;
}

.neon-input:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.1), var(--glow-cyan);
}

.neon-input::placeholder {
    color: var(--text-dim);
}

.input-hint {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 15px var(--cyan), 0 0 30px var(--cyan), 0 0 60px var(--cyan-dim);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-login {
    background: linear-gradient(135deg, #1a8f40, var(--spotify-green));
    color: white;
    padding: 0.75rem 1.25rem;
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-save {
    background: linear-gradient(135deg, var(--magenta-dim), var(--magenta));
    color: white;
}

.btn-save:hover {
    box-shadow: var(--glow-magenta);
}

.btn-save.saved {
    background: var(--spotify-green);
}

.btn-save.saved:hover {
    box-shadow: var(--glow-spotify);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.icon {
    width: 1.25em;
    height: 1.25em;
}

/* Button Loader */
.btn-loader {
    width: 1rem;
    height: 1rem;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ═══════════════════════════════════════════════════════════
   YouTube Card
   ═══════════════════════════════════════════════════════════ */

.youtube-info {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.youtube-thumbnail {
    width: 160px;
    height: 90px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid rgba(255, 0, 0, 0.3);
    flex-shrink: 0;
}

.youtube-details {
    flex: 1;
    min-width: 0;
}

.youtube-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.youtube-author {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.parsed-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 6px;
    border-left: 3px solid var(--cyan);
}

.parsed-label {
    color: var(--text-dim);
}

.parsed-artist {
    color: var(--magenta);
    font-weight: 500;
}

.parsed-separator {
    color: var(--text-dim);
}

.parsed-song {
    color: var(--cyan);
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   Results Card
   ═══════════════════════════════════════════════════════════ */

.results-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.result-item:hover {
    border-color: var(--spotify-green);
    background: rgba(29, 185, 84, 0.1);
}

.result-item.best-match {
    border-color: var(--spotify-green);
    box-shadow: 0 0 20px rgba(29, 185, 84, 0.2);
}

.result-item.best-match::after {
    content: 'BEST MATCH';
    position: absolute;
    top: -10px;
    right: 1rem;
    font-family: var(--font-display);
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
    background: var(--spotify-green);
    color: white;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

.result-item {
    position: relative;
}

.album-art {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.result-details {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.result-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.result-artist {
    font-size: 0.9rem;
    color: var(--spotify-green);
    margin-bottom: 0.25rem;
}

.result-album {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    justify-content: center;
}

.btn-open {
    background: transparent;
    border: 1px solid var(--spotify-green);
    color: var(--spotify-green);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-open:hover {
    background: var(--spotify-green);
    color: white;
}

/* ═══════════════════════════════════════════════════════════
   Error Card
   ═══════════════════════════════════════════════════════════ */

.error-card {
    border-color: rgba(255, 100, 100, 0.3);
}

.error-card::before {
    background: linear-gradient(90deg, transparent, #ff6464, transparent);
}

.error-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.error-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 100, 100, 0.2);
    border: 2px solid #ff6464;
    border-radius: 50%;
    color: #ff6464;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.error-message {
    color: #ff6464;
}

/* ═══════════════════════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════════════════════ */

.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-dim);
    font-size: 0.85rem;
}

.neon-heart {
    color: var(--magenta);
    text-shadow: var(--glow-magenta);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* ═══════════════════════════════════════════════════════════
   Toast Notification
   ═══════════════════════════════════════════════════════════ */

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--spotify-green);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    box-shadow: var(--glow-spotify);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-message {
    color: var(--text-primary);
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   Responsive Design
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 640px) {
    .container {
        padding: 1.5rem 1rem;
    }

    .input-group {
        flex-direction: column;
    }

    .btn-primary {
        width: 100%;
    }

    .youtube-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .youtube-thumbnail {
        width: 100%;
        max-width: 280px;
        height: auto;
        aspect-ratio: 16/9;
    }

    .parsed-info {
        justify-content: center;
    }

    .result-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .result-details {
        align-items: center;
    }

    .result-actions {
        flex-direction: row;
        width: 100%;
    }

    .result-actions .btn {
        flex: 1;
    }

    .neon-circle {
        opacity: 0.2;
    }

    .circle-1 {
        width: 300px;
        height: 300px;
    }

    .circle-2 {
        width: 250px;
        height: 250px;
    }

    .circle-3 {
        width: 200px;
        height: 200px;
    }
}

/* ═══════════════════════════════════════════════════════════
   Animations
   ═══════════════════════════════════════════════════════════ */

.card {
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-card .result-item {
    animation: slideIn 0.3s ease;
    animation-fill-mode: both;
}

.results-card .result-item:nth-child(1) { animation-delay: 0.1s; }
.results-card .result-item:nth-child(2) { animation-delay: 0.2s; }
.results-card .result-item:nth-child(3) { animation-delay: 0.3s; }
.results-card .result-item:nth-child(4) { animation-delay: 0.4s; }
.results-card .result-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading shimmer effect */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 255, 255, 0.1),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}