/* Generator Studio Design System - Dark Studio Theme */
:root {
    --bg-main: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-hover: #334155;
    --bg-card: #182234;
    --border-color: #334155;
    --border-highlight: #475569;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-emerald: #10b981;
    --accent-teal: #14b8a6;
    --accent-sky: #0284c7;
    --accent-amber: #f59e0b;
    --accent-indigo: #6366f1;
    --accent-rose: #f43f5e;
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header Navbar */
.studio-header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent-emerald), var(--accent-teal));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #fff;
}

.brand-tag {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-emerald);
    background: rgba(16, 185, 129, 0.12);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    border: 1px solid rgba(16, 185, 129, 0.25);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Main Studio Layout */
.studio-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    flex: 1;
    min-height: calc(100vh - 65px);
}

/* Sidebar */
.studio-sidebar {
    background: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sidebar-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: 700;
}

.client-select-box {
    width: 100%;
    background: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
}

.client-select-box:focus {
    border-color: var(--accent-teal);
}

/* Nav Menu Buttons */
.nav-menu-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
}

.nav-menu-btn:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.nav-menu-btn.active {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent-emerald);
    font-weight: 600;
}

/* Main Workspace */
.studio-main {
    display: flex;
    flex-direction: column;
    background: var(--bg-main);
    padding: 1.5rem;
    gap: 1.5rem;
    overflow-y: auto;
}

.workspace-tab {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}

.workspace-tab.active {
    display: flex;
}

/* Section Header */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.panel-title-group h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
}

.panel-title-group p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-emerald), var(--accent-teal));
    color: #fff;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(16, 185, 129, 0.35);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-highlight);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-sky), var(--accent-indigo));
    color: #fff;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.25);
}

.btn-accent:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(2, 132, 199, 0.35);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-rose);
    border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    background: rgba(244, 63, 94, 0.25);
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.78rem;
    border-radius: 6px;
}

/* Grid Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input, .form-textarea, .form-select {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    border-color: var(--accent-emerald);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* Drag & Drop Upload Zone */
.dropzone {
    border: 2px dashed var(--border-highlight);
    background: rgba(30, 41, 59, 0.5);
    border-radius: 12px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-emerald);
    background: rgba(16, 185, 129, 0.08);
}

.dropzone-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.dropzone-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
}

.dropzone-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    max-width: 420px;
}

/* Document Cards Grid */
.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.doc-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
    position: relative;
}

.doc-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.doc-card-header {
    height: 140px;
    background: #090d16;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.doc-card-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.doc-card-icon {
    font-size: 3rem;
    color: var(--text-muted);
}

.doc-card-badge {
    position: absolute;
    top: 0.65rem;
    left: 0.65rem;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--accent-emerald);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.doc-card-privacy {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    color: var(--accent-amber);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.doc-card-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.doc-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.doc-card-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.doc-card-actions {
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.4);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

/* Modal Drawer */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 1.5rem;
}

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

.modal-container {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
}

.modal-close:hover {
    color: #fff;
    background: var(--bg-surface-hover);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Split Pane Preview */
.preview-container {
    display: flex;
    flex-direction: column;
    height: 720px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

.preview-toolbar {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.device-switcher {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-main);
    padding: 0.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.device-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.device-btn.active {
    background: var(--bg-surface);
    color: var(--accent-emerald);
}

.preview-viewport-wrap {
    flex: 1;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow: auto;
}

.preview-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #ffffff;
    border-radius: 8px;
    transition: width 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.preview-iframe.mobile-view {
    width: 375px;
    height: 667px;
    border-radius: 36px;
    border: 10px solid #222;
}

/* Template Card Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.template-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.template-card:hover {
    border-color: var(--border-highlight);
}

.template-card.selected {
    border-color: var(--accent-emerald);
    background: rgba(16, 185, 129, 0.05);
}

.template-preview-box {
    height: 100px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.template-box-warm {
    background: #FAF9F5;
    color: #1a2e26;
    border: 1px solid #e2e8f0;
}

.template-box-slate {
    background: #0D1117;
    color: #38bdf8;
    border: 1px solid #1e293b;
}

.template-box-corporate {
    background: #ffffff;
    color: #0f172a;
    border: 1px solid #cbd5e1;
}

/* Combined PDF Queue List */
.pdf-queue-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.pdf-queue-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.pdf-queue-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pdf-queue-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 2000;
}

.toast {
    background: var(--bg-surface);
    color: #fff;
    border: 1px solid var(--border-highlight);
    border-left: 4px solid var(--accent-emerald);
    padding: 0.85rem 1.25rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
    .studio-container {
        grid-template-columns: 1fr;
    }
    .studio-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}