@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
    --bg-color: #0a0a0f;
    --text-color: #e8e8ec;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-hover: rgba(255, 255, 255, 0.08);
    --surface: rgba(255, 255, 255, 0.06);
    --dropdown-bg: #1a1a2e;
    --dropdown-text: #e8e8ec;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 50px;
    --transition-speed: 0.3s;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══════════════════════════════════════ */
/* Themes                                  */
/* ═══════════════════════════════════════ */
.theme-light {
    --bg-color: #f5f5f7;
    --text-color: #1d1d1f;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.1);
    --glass-bg: rgba(0, 0, 0, 0.04);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-hover: rgba(0, 0, 0, 0.08);
    --surface: rgba(0, 0, 0, 0.05);
    --dropdown-bg: #ffffff;
    --dropdown-text: #1d1d1f;
}

.theme-oled {
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.12);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-hover: rgba(255, 255, 255, 0.06);
    --surface: rgba(255, 255, 255, 0.04);
    --dropdown-bg: #111111;
    --dropdown-text: #ffffff;
}

/* Adaptive theme: nav/controls adapt to face palette */
.theme-adaptive {
    --bg-color: #0a0a0f;
    --text-color: #e8e8ec;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --glass-bg: rgba(0, 0, 0, 0.35);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.12);
    --surface: rgba(0, 0, 0, 0.3);
    --dropdown-bg: rgba(0, 0, 0, 0.85);
    --dropdown-text: #ffffff;
}

/* ═══════════════════════════════════════ */
/* Reset & Base                            */
/* ═══════════════════════════════════════ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    transition: background-color var(--transition-speed) var(--transition-smooth),
        color var(--transition-speed) var(--transition-smooth);
}

/* ═══════════════════════════════════════ */
/* Navigation (Modern Pill Tabs)           */
/* ═══════════════════════════════════════ */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    gap: 4px;
    transition: transform 0.45s var(--transition-smooth),
        opacity 0.45s var(--transition-smooth);
}

#main-nav.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

/* Tab pill container */
.nav-tabs {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--surface);
    border-radius: var(--radius-pill);
    padding: 4px;
    border: 1px solid var(--glass-border);
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 7px 18px;
    cursor: pointer;
    opacity: 0.45;
    transition: all 0.3s var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    position: relative;
    border-radius: var(--radius-pill);
    font-family: var(--font-main);
    white-space: nowrap;
}

.nav-btn:hover {
    opacity: 0.75;
}

.nav-btn.active {
    opacity: 1;
    color: #fff;
    background: var(--accent-color);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.nav-spacer {
    flex-grow: 1;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 1.05rem;
    cursor: pointer;
    margin-left: 4px;
    opacity: 0.4;
    color: var(--text-color);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.25s var(--transition-smooth);
}

.icon-btn:hover {
    opacity: 1;
    background: var(--glass-hover);
}

/* ═══════════════════════════════════════ */
/* Main Container                          */
/* ═══════════════════════════════════════ */
#app-container {
    width: 100%;
    height: 100%;
    position: relative;
    padding-top: 52px;
}

body.fullscreen-active #app-container {
    padding-top: 0;
}

/* ═══════════════════════════════════════ */
/* Tabs                                    */
/* ═══════════════════════════════════════ */
.tab-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s var(--transition-smooth);
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 52px;
}

body.fullscreen-active .tab-content {
    padding-top: 0;
}

.tab-content.active {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
}

/* ═══════════════════════════════════════ */
/* Controls Overlay                        */
/* ═══════════════════════════════════════ */
.controls-overlay {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.4s var(--transition-smooth);
    z-index: 100;
}

/* In normal view: show on hover */
.controls-overlay {
    opacity: 0;
}

#app-container:hover .controls-overlay,
.controls-overlay:hover,
.controls-overlay:focus-within {
    opacity: 1;
}

/* ═══════════════════════════════════════ */
/* Fullscreen: FULLY HIDE everything       */
/* ═══════════════════════════════════════ */
body.fullscreen-active #main-nav {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

body.fullscreen-active .controls-overlay {
    opacity: 0 !important;
    pointer-events: none !important;
    transform: translateX(-50%) translateY(20px);
}

/* On mouse move: show UI (class toggled by JS) */
body.fullscreen-active.show-ui #main-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

body.fullscreen-active.show-ui .controls-overlay {
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: translateX(-50%) translateY(0);
}

/* ═══════════════════════════════════════ */
/* Settings Modal                          */
/* ═══════════════════════════════════════ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: modalFadeIn 0.3s var(--transition-smooth);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--dropdown-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 0;
    min-width: 380px;
    max-width: 480px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.35s var(--transition-smooth);
    color: var(--dropdown-text);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(20px) scale(0.97);
        opacity: 0;
    }

    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-content::-webkit-scrollbar {
    width: 4px;
}

.modal-content::-webkit-scrollbar-track {
    background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

.modal-content h2 {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 22px 24px 18px;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--glass-border);
    color: var(--dropdown-text);
}

.settings-section {
    padding: 16px 24px;
    border-bottom: 1px solid var(--glass-border);
}

.settings-section:last-of-type {
    border-bottom: none;
}

.settings-section h3 {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    margin-bottom: 12px;
    opacity: 0.9;
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
}

.setting-row label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--dropdown-text);
    opacity: 0.85;
}

/* Fix dropdown text visibility */
.setting-row select {
    background: var(--surface);
    border: 1px solid var(--glass-border);
    color: var(--dropdown-text);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: border-color 0.2s;
    outline: none;
    min-width: 150px;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

.setting-row select option {
    background: var(--dropdown-bg);
    color: var(--dropdown-text);
    padding: 8px;
}

.setting-row select:focus {
    border-color: var(--accent-color);
}

.setting-row input[type="range"] {
    width: 120px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    cursor: pointer;
    flex-shrink: 0;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(128, 128, 128, 0.3);
    border-radius: 24px;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s var(--transition-smooth);
}

.toggle-switch input:checked+.toggle-slider {
    background: var(--accent-color);
}

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(20px);
}

/* Range Slider */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(128, 128, 128, 0.3);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
    border: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: transform 0.2s;
    border: none;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.25);
}

/* Modal Close */
.modal-close-btn {
    background: var(--accent-color);
    border: none;
    color: #fff;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: calc(100% - 48px);
    margin: 8px 24px 20px;
    font-family: var(--font-main);
}

.modal-close-btn:hover {
    opacity: 0.9;
    transform: scale(1.01);
}

/* ═══════════════════════════════════════ */
/* Color Picker Popup                      */
/* ═══════════════════════════════════════ */
.color-picker-popup {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dropdown-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 16px;
    z-index: 200;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 280px;
    animation: modalSlideIn 0.25s var(--transition-smooth);
}

.color-picker-popup.hidden {
    display: none;
}

.color-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.color-swatch:hover {
    transform: scale(1.2);
    border-color: rgba(255, 255, 255, 0.6);
}

.color-swatch.active {
    border-color: #fff;
    box-shadow: 0 0 0 2px var(--bg-color), 0 0 0 4px #fff;
}

.custom-color-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--glass-border);
}

.custom-color-wrap input[type="color"] {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: none;
    padding: 0;
}

.custom-color-wrap span {
    font-size: 0.75rem;
    opacity: 0.6;
    color: var(--dropdown-text);
}

/* ═══════════════════════════════════════ */
/* Media Tab                               */
/* ═══════════════════════════════════════ */
#media-tab {
    background: #000;
}

.media-upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    text-align: center;
}

.media-upload-area .upload-icon {
    font-size: 4rem;
    opacity: 0.3;
    line-height: 1;
}

.media-upload-area p {
    font-size: 0.9rem;
    opacity: 0.5;
    max-width: 300px;
}

.upload-btn {
    background: var(--accent-color);
    border: none;
    color: #fff;
    padding: 12px 32px;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-main);
    transition: all 0.2s;
    letter-spacing: 0.5px;
}

.upload-btn:hover {
    opacity: 0.9;
    transform: scale(1.03);
}

/* Slideshow */
.slideshow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    overflow: hidden;
}

.slideshow-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 2.2s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.slideshow-slide.active {
    opacity: 1;
    z-index: 2;
}

.slideshow-slide.fading-out {
    opacity: 0;
    z-index: 1;
    transition: opacity 2.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.slideshow-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    user-select: none;
}

.slideshow-slide video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Ken Burns — gentle, calm motion */
@keyframes kenBurns {
    0% {
        transform: scale(1) translate(0, 0);
    }

    50% {
        transform: scale(1.04) translate(-0.5%, -0.3%);
    }

    100% {
        transform: scale(1) translate(0, 0);
    }
}

.slideshow-slide.active img {
    animation: kenBurns 15s ease-in-out infinite;
}

/* Media Controls Overlay */
#media-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

#media-controls button {
    background: var(--glass-hover);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 7px 16px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.25s;
    letter-spacing: 0.3px;
}

#media-controls button:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
}

.media-file-count {
    font-size: 0.75rem;
    opacity: 0.5;
    min-width: 60px;
    text-align: center;
}

/* ═══════════════════════════════════════ */
/* Utilities                               */
/* ═══════════════════════════════════════ */
.hidden {
    display: none !important;
}

canvas {
    display: block;
}

::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

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