/* ============================================
   Components - Cards, Buttons, Music Player
   ============================================ */

/* --- Neon Card --- */

.neon-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow:
        0 0 15px rgba(0, 255, 255, 0.05),
        inset 0 0 15px rgba(0, 255, 255, 0.02);
    transition: all var(--transition-base);
}

.neon-card:hover {
    border-color: rgba(0, 255, 255, 0.3);
    box-shadow:
        0 0 30px rgba(0, 255, 255, 0.12),
        0 0 60px rgba(0, 255, 255, 0.04),
        inset 0 0 30px rgba(0, 255, 255, 0.04);
    transform: translateY(-4px);
}

.neon-card .card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 8px rgba(0, 255, 255, 0.3));
}

.neon-card h3 {
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.neon-card p {
    font-size: var(--text-base);
}

/* --- Glass Panel --- */

.glass-panel {
    background: rgba(15, 15, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
}

/* --- Gradient Border Card --- */

.gradient-border-card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    overflow: hidden;
}

.gradient-border-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(45deg,
        var(--neon-cyan), var(--neon-magenta),
        var(--neon-orange), var(--neon-cyan));
    background-size: 300% 300%;
    animation: gradientRotate 4s ease infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    transition: opacity var(--transition-base);
}

.gradient-border-card:hover::before {
    opacity: 1;
}

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

/* --- Neon Button --- */

.neon-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    overflow: hidden;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 12px 32px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.1),
                inset 0 0 15px rgba(0, 255, 255, 0.05);
    transition: all var(--transition-fast);
}

.neon-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        transparent, transparent,
        rgba(0, 255, 255, 0.08), transparent, transparent
    );
    transform: rotate(45deg) translateX(-150%);
    animation: btnShine 4s ease infinite;
}

@keyframes btnShine {
    0%   { transform: rotate(45deg) translateX(-150%); }
    50%  { transform: rotate(45deg) translateX(150%); }
    100% { transform: rotate(45deg) translateX(150%); }
}

.neon-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.25),
                inset 0 0 20px rgba(0, 255, 255, 0.08);
    transform: translateY(-2px);
}

.neon-btn.btn-magenta {
    border-color: var(--neon-magenta);
    color: var(--neon-magenta);
    text-shadow: 0 0 8px rgba(255, 0, 255, 0.3);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.1),
                inset 0 0 15px rgba(255, 0, 255, 0.05);
}

.neon-btn.btn-magenta:hover {
    background: rgba(255, 0, 255, 0.1);
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.25),
                inset 0 0 20px rgba(255, 0, 255, 0.08);
}

.neon-btn.btn-filled {
    background: rgba(0, 255, 255, 0.15);
}

/* --- Grid Layouts --- */

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

/* --- Tech Badge --- */

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 12px;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: var(--radius-full);
    background: rgba(0, 255, 255, 0.05);
}

/* --- Image with Neon Frame --- */

.neon-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.15);
}

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

.neon-frame:hover img {
    transform: scale(1.03);
}

/* ============================================
   Music Player — Compact Single-Line Bar
   Expands on click to show tracklist + volume
   ============================================ */

.music-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-music-player);
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: none;
}

/* Animated multicolor gradient border along the top */
.music-player::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        var(--neon-cyan),
        var(--neon-magenta),
        var(--neon-purple),
        var(--neon-green),
        var(--neon-magenta),
        var(--neon-cyan)
    );
    background-size: 200% 100%;
    animation: borderFlow 4s linear infinite;
    z-index: 1;
    box-shadow:
        0 0 8px rgba(0, 255, 255, 0.4),
        0 0 16px rgba(255, 0, 255, 0.2);
}

/* Subtle animated glow on the sides */
.music-player::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    pointer-events: none;
    border-left: 1px solid;
    border-right: 1px solid;
    border-image: linear-gradient(
        180deg,
        rgba(0, 255, 255, 0.3),
        rgba(255, 0, 255, 0.15),
        transparent 70%
    ) 1;
    z-index: 1;
}

@keyframes borderFlow {
    0%   { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

/* Thin progress bar along the top edge */
.player-progress {
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
    position: relative;
}

.player-progress:hover {
    height: 4px;
}

.player-progress-fill {
    height: 100%;
    background: var(--gradient-neon);
    border-radius: 0 2px 2px 0;
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 0 6px rgba(0, 255, 255, 0.4);
}

/* --- Compact bar (always visible, single line) --- */

.player-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0 var(--space-md);
    height: 36px;
}

/* --- Soundwave Visualizer Row --- */

.player-visualizer-row {
    width: 100%;
    height: 40px;
    padding: 0 var(--space-xs);
    cursor: pointer;
    position: relative;
}

.visualizer-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.player-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
    cursor: pointer;
}

.player-btn:hover {
    color: var(--neon-cyan);
}

.player-btn-main {
    width: 28px;
    height: 28px;
    border: 1.5px solid var(--neon-cyan);
    color: var(--neon-cyan);
}

.player-btn-main:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 12px rgba(0, 255, 255, 0.25);
}

.player-shuffle-btn {
    color: var(--text-muted);
    opacity: 0.7;
}

.player-shuffle-btn:hover {
    color: var(--neon-magenta);
    opacity: 1;
}

.player-shuffle-btn.shuffle-active {
    color: var(--neon-magenta);
    opacity: 1;
}

.player-track-name {
    flex: 1;
    min-width: 0;
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 var(--space-sm);
}

/* Expand chevron — rotates when open */
.player-expand-btn {
    transition: transform var(--transition-base);
    cursor: pointer;
}

.music-player.expanded .player-expand-btn {
    transform: rotate(180deg);
}

/* --- Expandable panel (hidden by default) --- */

.player-expanded {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background: rgba(8, 8, 22, 0.98);
}

.music-player.expanded .player-expanded {
    max-height: 50vh;
    overflow-y: auto;
    border-top: 1px solid rgba(0, 255, 255, 0.06);
}

/* Volume row inside expanded panel */
.player-expanded-volume {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    max-width: 160px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neon-cyan);
    box-shadow: 0 0 6px var(--glow-cyan);
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neon-cyan);
    box-shadow: 0 0 6px var(--glow-cyan);
    cursor: pointer;
    border: none;
}

/* Track list inside expanded panel */
.player-tracklist {
    padding: var(--space-xs) 0;
}

.tracklist-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    font-size: var(--text-sm);
}

.tracklist-item:hover {
    background: rgba(0, 255, 255, 0.05);
}

.tracklist-item.active {
    color: var(--neon-cyan);
    background: rgba(0, 255, 255, 0.08);
}

.tracklist-item .track-number {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    width: 20px;
    text-align: right;
}

.tracklist-item .track-title {
    flex: 1;
}

/* (Music enable overlay removed — replaced by visualizer) */

/* (playerGlow replaced by continuous animated gradient border — see .music-player::before) */

/* --- Contact Widget --- */

.contact-widget {
    position: fixed;
    bottom: calc(var(--player-height) + 16px);
    left: var(--space-lg);
    z-index: calc(var(--z-music-player) - 1);
}

.contact-fab {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(10, 10, 26, 0.9);
    border: 1.5px solid var(--neon-magenta);
    color: var(--neon-magenta);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.15);
    transition: all var(--transition-fast);
}

.contact-fab:hover {
    background: rgba(255, 0, 255, 0.1);
    box-shadow: 0 0 25px rgba(255, 0, 255, 0.3);
    transform: scale(1.08);
}

.contact-fab-icon-close { display: none; }
.contact-widget.open .contact-fab-icon-open { display: none; }
.contact-widget.open .contact-fab-icon-close { display: block; }

/* Panel */
.contact-panel {
    position: absolute;
    bottom: 60px;
    left: 0;
    width: 320px;
    max-height: calc(100vh - var(--player-height) - 100px);
    background: rgba(10, 10, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 0, 255, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 0, 255, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.95);
    transform-origin: bottom left;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    overflow-x: hidden;
}

.contact-widget.open .contact-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.contact-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid rgba(255, 0, 255, 0.1);
}

.contact-panel-title {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--neon-magenta);
    text-shadow: 0 0 8px rgba(255, 0, 255, 0.3);
    margin: 0;
}

.contact-panel-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.contact-panel-close:hover {
    color: var(--neon-magenta);
    background: rgba(255, 0, 255, 0.1);
}

/* Quick action buttons */
.contact-quick-actions {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-sm) var(--space-sm);
}

.contact-action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.contact-action-btn:hover {
    background: rgba(255, 0, 255, 0.08);
    color: var(--neon-magenta);
}

.contact-action-btn svg {
    flex-shrink: 0;
    opacity: 0.7;
}

.contact-action-btn:hover svg {
    opacity: 1;
}

/* Divider */
.contact-divider {
    height: 1px;
    background: rgba(255, 0, 255, 0.1);
    margin: var(--space-xs) var(--space-lg);
}

/* Contact form */
#contactForm {
    padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.contact-form-field {
    margin-bottom: var(--space-sm);
}

.contact-form-field input,
.contact-form-field textarea {
    width: 100%;
    padding: 10px var(--space-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    outline: none;
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

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

.contact-form-field input:focus,
.contact-form-field textarea:focus {
    border-color: rgba(255, 0, 255, 0.4);
    box-shadow: 0 0 8px rgba(255, 0, 255, 0.1);
}

.contact-form-field textarea {
    resize: vertical;
    min-height: 60px;
}

.contact-submit-btn {
    width: 100%;
    justify-content: center;
    border-color: var(--neon-magenta);
    color: var(--neon-magenta);
    text-shadow: 0 0 8px rgba(255, 0, 255, 0.3);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.1),
                inset 0 0 15px rgba(255, 0, 255, 0.05);
    padding: 10px 24px;
    margin-top: var(--space-sm);
}

.contact-submit-btn:hover {
    background: rgba(255, 0, 255, 0.1);
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.25),
                inset 0 0 20px rgba(255, 0, 255, 0.08);
}

.contact-form-status {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-align: center;
    margin-top: var(--space-sm);
    min-height: 1.2em;
}

.contact-form-status.success { color: var(--neon-green); }
.contact-form-status.error { color: var(--neon-orange); }

/* --- Back to Top Button --- */

.back-to-top {
    position: fixed;
    bottom: calc(var(--player-height) + 16px);
    right: var(--space-lg);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(10, 10, 26, 0.9);
    border: 1px solid rgba(0, 255, 255, 0.3);
    color: var(--neon-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: calc(var(--z-music-player) - 1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-base), visibility var(--transition-base),
                transform var(--transition-base), box-shadow var(--transition-fast),
                background var(--transition-fast);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.1);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    transform: translateY(-2px);
}