/* ==========================================================================
   HIATO — Generative Art Studio
   ========================================================================== */

/* CSS Variables - Extending existing design system */
:root {
    --vibe-bg: #050508;
    --vibe-surface: rgba(15, 15, 20, 0.85);
    --vibe-surface-hover: rgba(25, 25, 35, 0.9);
    --vibe-border: rgba(255, 255, 255, 0.06);
    --vibe-border-active: rgba(0, 168, 255, 0.4);
    --vibe-text: #ffffff;
    --vibe-text-muted: #6b6b7b;
    --vibe-text-subtle: #3d3d4a;
    --vibe-accent: #00a8ff;
    --vibe-accent-glow: rgba(0, 168, 255, 0.15);
    --vibe-success: #10b981;
    --vibe-warning: #f59e0b;
    --vibe-danger: #ef4444;

    --font-display: 'Syne', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    --panel-width: 320px;
    --header-height: 56px;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    background: var(--vibe-bg);
    color: var(--vibe-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--vibe-accent);
    color: var(--vibe-bg);
}

/* ==========================================================================
   Header
   ========================================================================== */

.vibe-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: linear-gradient(180deg, rgba(5, 5, 8, 0.95) 0%, transparent 100%);
    backdrop-filter: blur(10px);
}

.back-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.15em;
    color: var(--vibe-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--vibe-text);
}

.back-link svg {
    transition: transform 0.3s var(--ease-out-expo);
}

.back-link:hover svg {
    transform: translateX(-3px);
}

.header-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.2em;
}

.tool-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
}

.tool-badge {
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--vibe-text-muted);
}

.header-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--vibe-surface);
    border: 1px solid var(--vibe-border);
    border-radius: 8px;
    color: var(--vibe-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    background: var(--vibe-surface-hover);
    color: var(--vibe-text);
    border-color: var(--vibe-border-active);
}

/* ==========================================================================
   Canvas Area
   ========================================================================== */

.vibe-canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    right: var(--panel-width);
    bottom: 0;
    transition: right 0.5s var(--ease-out-expo);
}

.vibe-canvas-container.fullscreen {
    right: 0;
}

#vibe-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.canvas-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(
        ellipse 80% 60% at 50% 50%,
        transparent 0%,
        rgba(5, 5, 8, 0.15) 70%,
        rgba(5, 5, 8, 0.4) 100%
    );
}

/* Info Panel */
.info-panel {
    position: absolute;
    top: calc(var(--header-height) + 16px);
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px;
    background: var(--vibe-surface);
    border: 1px solid var(--vibe-border);
    border-radius: 10px;
    backdrop-filter: blur(20px);
}

.info-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.info-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--vibe-text-subtle);
    min-width: 50px;
}

.info-value {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--vibe-accent);
}

/* Coordinates Display */
.coords-display {
    position: absolute;
    bottom: 16px;
    left: 16px;
    padding: 8px 12px;
    background: var(--vibe-surface);
    border: 1px solid var(--vibe-border);
    border-radius: 6px;
    backdrop-filter: blur(20px);
}

.coords-display span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--vibe-text-muted);
}

/* ==========================================================================
   Control Panel
   ========================================================================== */

.control-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: var(--panel-width);
    background: var(--vibe-surface);
    border-left: 1px solid var(--vibe-border);
    backdrop-filter: blur(30px);
    display: flex;
    flex-direction: column;
    z-index: 50;
    transform: translateX(0);
    transition: transform 0.5s var(--ease-out-expo);
}

.control-panel.collapsed {
    transform: translateX(calc(var(--panel-width) - 48px));
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--vibe-border);
}

.panel-header h2 {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--vibe-text-muted);
}

.btn-collapse {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--vibe-border);
    border-radius: 6px;
    color: var(--vibe-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-collapse:hover {
    background: var(--vibe-surface-hover);
    color: var(--vibe-text);
}

.control-panel.collapsed .btn-collapse svg {
    transform: rotate(180deg);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Custom Scrollbar */
.panel-content::-webkit-scrollbar {
    width: 4px;
}

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

.panel-content::-webkit-scrollbar-thumb {
    background: var(--vibe-border);
    border-radius: 2px;
}

.panel-content::-webkit-scrollbar-thumb:hover {
    background: var(--vibe-text-subtle);
}

/* Control Sections */
.control-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--vibe-text-subtle);
}

/* Preset Buttons */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.preset-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid var(--vibe-border);
    border-radius: 8px;
    color: var(--vibe-text-muted);
    font-family: var(--font-body);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.25s var(--ease-out-expo);
}

.preset-btn:hover {
    background: var(--vibe-surface-hover);
    border-color: var(--vibe-border-active);
    color: var(--vibe-text);
}

.preset-btn.active {
    background: var(--vibe-accent-glow);
    border-color: var(--vibe-accent);
    color: var(--vibe-accent);
}

.preset-icon {
    font-size: 14px;
    opacity: 0.7;
}

.preset-btn.active .preset-icon {
    opacity: 1;
}

.preset-btn:nth-child(5) {
    grid-column: span 2;
}

/* Palette Buttons */
.palette-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
}

.palette-btn {
    aspect-ratio: 1;
    padding: 4px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.25s var(--ease-out-expo);
}

.palette-btn:hover {
    transform: scale(1.08);
}

.palette-btn.active {
    border-color: var(--vibe-accent);
    box-shadow: 0 0 12px var(--vibe-accent-glow);
}

.color-swatch {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 5px;
    background: conic-gradient(
        from 0deg,
        var(--c1) 0deg 90deg,
        var(--c2) 90deg 180deg,
        var(--c3) 180deg 270deg,
        var(--c4) 270deg 360deg
    );
}

/* Sliders */
.slider-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.vibe-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--vibe-border);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.vibe-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--vibe-accent);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease;
    box-shadow: 0 0 0 4px rgba(0, 168, 255, 0);
}

.vibe-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.2);
}

.vibe-slider::-webkit-slider-thumb:active {
    transform: scale(1.1);
    box-shadow: 0 0 0 6px rgba(0, 168, 255, 0.3);
}

.vibe-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--vibe-accent);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s var(--ease-spring);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--vibe-text-subtle);
    letter-spacing: 0.05em;
}

/* Action Buttons */
.control-section.actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--vibe-border);
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: transparent;
    border: 1px solid var(--vibe-border);
    border-radius: 10px;
    color: var(--vibe-text-muted);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.25s var(--ease-out-expo);
}

.action-btn:hover {
    background: var(--vibe-surface-hover);
    border-color: var(--vibe-border-active);
    color: var(--vibe-text);
}

.action-btn.primary {
    background: var(--vibe-accent-glow);
    border-color: var(--vibe-accent);
    color: var(--vibe-accent);
}

.action-btn.primary:hover {
    background: var(--vibe-accent);
    color: var(--vibe-bg);
}

.action-btn.recording {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--vibe-danger);
    color: var(--vibe-danger);
    animation: pulse-recording 1.5s ease-in-out infinite;
}

@keyframes pulse-recording {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Code Preview */
.code-section {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--vibe-border);
}

.btn-copy {
    background: transparent;
    border: none;
    color: var(--vibe-text-muted);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s ease;
}

.btn-copy:hover {
    color: var(--vibe-accent);
}

.code-preview {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--vibe-border);
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
}

.code-preview code {
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.6;
    color: var(--vibe-text-muted);
    white-space: pre;
}

/* ==========================================================================
   Mobile Panel Toggle
   ========================================================================== */

.mobile-panel-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    align-items: center;
    justify-content: center;
    background: var(--vibe-accent);
    border: none;
    border-radius: 50%;
    color: var(--vibe-bg);
    cursor: pointer;
    z-index: 60;
    box-shadow: 0 4px 24px rgba(0, 168, 255, 0.4);
    transition: transform 0.3s var(--ease-spring);
}

.mobile-panel-toggle:active {
    transform: scale(0.92);
}

.mobile-panel-toggle.active svg {
    transform: rotate(45deg);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    :root {
        --panel-width: 280px;
    }
}

@media (max-width: 768px) {
    :root {
        --panel-width: 100%;
    }

    .vibe-canvas-container {
        right: 0;
    }

    .control-panel {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 70vh;
        border-left: none;
        border-top: 1px solid var(--vibe-border);
        border-radius: 24px 24px 0 0;
        transform: translateY(100%);
    }

    .control-panel.mobile-open {
        transform: translateY(0);
    }

    .mobile-panel-toggle {
        display: flex;
    }

    .btn-collapse {
        display: none;
    }

    .panel-header {
        padding: 16px 20px;
        cursor: grab;
    }

    .panel-header::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: var(--vibe-border);
        border-radius: 2px;
    }

    .info-panel {
        top: auto;
        bottom: 90px;
        left: 12px;
    }

    .coords-display {
        bottom: 90px;
        left: auto;
        right: 12px;
    }

    .tool-title {
        display: none;
    }

    .back-link span {
        display: none;
    }
}

@media (max-width: 480px) {
    .preset-grid {
        grid-template-columns: 1fr;
    }

    .preset-btn:nth-child(5) {
        grid-column: span 1;
    }

    .palette-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   Animations & Effects
   ========================================================================== */

/* Initial load animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.control-panel {
    animation: slideIn 0.6s var(--ease-out-expo) 0.2s both;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.info-panel {
    animation: fadeInUp 0.5s var(--ease-out-expo) 0.4s both;
}

.coords-display {
    animation: fadeInUp 0.5s var(--ease-out-expo) 0.5s both;
}

/* Tooltip */
[title] {
    position: relative;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 20px;
    background: var(--vibe-surface);
    border: 1px solid var(--vibe-border);
    border-radius: 10px;
    backdrop-filter: blur(20px);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--vibe-text);
    opacity: 0;
    transition: all 0.4s var(--ease-out-expo);
    z-index: 200;
}

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

.toast.success {
    border-color: var(--vibe-success);
    color: var(--vibe-success);
}