/* --- CSS Variables & Design Tokens --- */
:root {
    --gc-navy: #2D4059;
    --gc-red: #EA5455;
    --gc-orange: #F07B3F;
    --gc-yellow: #FFD460;

    --bg-dark: #16212e; /* Dark slate navy tint derived from --gc-navy */
    --card-bg: rgba(45, 64, 89, 0.75); /* transparent --gc-navy */
    --card-border: rgba(255, 255, 255, 0.1);
    --primary: var(--gc-orange);
    --primary-hover: #d3642c;
    --danger: var(--gc-red);
    --danger-hover: #c43f40;
    --text-main: #f4f4f5;
    --text-muted: #cbd5e1;
    --glass-blur: blur(16px);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.accent-bar {
    height: 4px;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 60;
    background: linear-gradient(90deg, var(--gc-navy), var(--gc-red), var(--gc-orange), var(--gc-yellow), var(--gc-navy));
    background-size: 200% 100%;
    animation: shift-gradient 8s linear infinite;
}

@keyframes shift-gradient {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

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

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* --- Layout Structure --- */
.app-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    z-index: 50;
    background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, transparent 100%);
}

.logo {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.logo span {
    color: var(--primary);
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

select {
    padding: 8px 12px;
    font-size: 14px;
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--text-main);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    outline: none;
    backdrop-filter: var(--glass-blur);
    cursor: pointer;
    transition: all 0.2s;
}

select:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: var(--glass-blur);
    transition: all 0.2s;
}

.icon-btn:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* --- Viewfinder/Canvas --- */
.viewfinder {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.input_video {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
    opacity: 0; /* Hidden: we draw frame directly on canvas */
    pointer-events: none;
}

.output_canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
    z-index: 10;
}

.effect-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 15;
    opacity: 0;
    transition: opacity 0.3s;
}

#vhs-overlay {
    background: repeating-linear-gradient(
        transparent,
        transparent 3px,
        rgba(0,0,0,0.15) 3px,
        rgba(0,0,0,0.15) 6px
    );
    mix-blend-mode: overlay;
}

#dither-overlay {
    background-image: radial-gradient(rgba(0,0,0,0.9) 20%, transparent 20%), radial-gradient(rgba(0,0,0,0.9) 20%, transparent 20%);
    background-size: 6px 6px;
    background-position: 0 0, 3px 3px;
    mix-blend-mode: overlay;
}

#spotlight-overlay {
    object-fit: cover;
    transform: scaleX(-1);
    z-index: 16;
}

/* --- Bottom Control Bar (Mobile First) --- */
.bottom-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 24px 20px 34px 20px; /* Extra bottom padding for mobile home indicators */
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 50;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.6) 60%, transparent 100%);
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    backdrop-filter: var(--glass-blur);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.control-btn:active {
    transform: scale(0.9);
}

.control-btn .icon {
    font-size: 20px;
}

.control-btn .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--primary);
    color: white;
    font-size: 11px;
    font-weight: 800;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    border: 2px solid var(--bg-dark);
}

/* Capture Action Buttons */
.capture-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
}

.capture-btn {
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: var(--glass-blur);
}

/* Snap Photo Button */
.snap-btn {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid #ffffff;
}

.snap-btn:active {
    transform: scale(0.88);
    background: rgba(255, 255, 255, 0.4);
}

.snap-btn .icon-inner {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: #ffffff;
    transition: transform 0.2s;
}

/* Record Video Button */
.record-btn {
    width: 72px;
    height: 72px;
    background: rgba(239, 68, 68, 0.2);
    border: 3px solid var(--danger);
}

.record-btn:active {
    transform: scale(0.9);
}

.record-btn .icon-inner {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--danger);
    transition: all 0.3s;
}

/* Recording State styling */
.record-btn.recording {
    animation: pulse-red 1.5s infinite;
}

.record-btn.recording .icon-inner {
    border-radius: 8px;
    transform: scale(0.6);
}

.timer-display {
    position: absolute;
    bottom: 84px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--danger);
    color: white;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.timer-display.active {
    opacity: 1;
}

/* --- Modals & Overlays --- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(8px);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    width: 90%;
    max-width: 440px;
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

/* --- Onboarding Modal Specifics --- */
.onboarding-card {
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.onboarding-slides {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
}

.slide {
    display: none;
    text-align: center;
    animation: fadeIn 0.4s ease forwards;
}

.slide.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.slide-icon {
    font-size: 54px;
    margin-bottom: 20px;
}

.slide h2 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 12px;
}

.slide h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.slide p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Gesture Intro Grid */
.gesture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    width: 100%;
    margin-top: 10px;
}

.gesture-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 8px 4px;
    font-size: 11px;
    font-weight: 600;
}

.gesture-item span {
    font-size: 20px;
    display: block;
    margin-bottom: 2px;
}

.onboarding-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
}

.btn {
    font-family: var(--font-sans);
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.slide-dots {
    display: flex;
    gap: 8px;
}

.slide-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.2s;
}

.slide-dots .dot.active {
    background: var(--primary);
    width: 18px;
    border-radius: 4px;
}

/* --- Gallery Sheet Specifics --- */
.gallery-card {
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-muted);
    cursor: pointer;
}

.close-btn:hover {
    color: var(--text-main);
}

.gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    display: grid;
    gap: 10px;
    overflow-y: auto;
    flex-grow: 1;
    padding-bottom: 10px;
}

.empty-gallery-msg {
    grid-column: span 3;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    padding: 40px 10px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    background: #000;
    cursor: pointer;
}

.gallery-item img, .gallery-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-item .video-badge {
    position: absolute;
    bottom: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
}

/* --- Media Preview Overlay --- */
.preview-overlay {
    background: rgba(0, 0, 0, 0.95);
}

.preview-container {
    position: relative;
    max-width: 90%;
    max-height: 85%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preview-container .close-btn {
    position: absolute;
    top: -45px;
    right: 0;
    font-size: 36px;
    color: white;
}

#preview-content {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#preview-content img, #preview-content video {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.preview-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    width: 100%;
}

.preview-actions .btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

/* --- System Debug Panel & Diagnostic Styling --- */
.debug-panel {
    position: absolute;
    top: 70px;
    left: 20px;
    z-index: 100;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 15px;
    border-radius: 16px;
    backdrop-filter: var(--glass-blur);
    width: 280px;
    font-family: monospace;
    transition: opacity 0.3s, transform 0.3s;
}

.debug-panel.collapsed {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
}

.debug-panel h4 {
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 13px;
    text-transform: uppercase;
}

.debug-item {
    font-size: 12px;
    margin-bottom: 4px;
}

.debug-log-console {
    margin-top: 8px;
    font-size: 10px;
    max-height: 80px;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.4);
    padding: 4px;
    border-radius: 6px;
    color: #f59e0b;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-red {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* --- Responsive Adjustments --- */
@media (max-width: 480px) {
    .app-header {
        height: 56px;
    }
    .logo {
        font-size: 18px;
    }
    .bottom-bar {
        padding: 16px 16px 28px 16px;
    }
    .modal-card {
        width: 95%;
        border-radius: 20px;
        padding: 18px;
    }
    .onboarding-card {
        min-height: 380px;
    }
    .gesture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}