/* DNG Professional — Global Design System */
:root {
    --bg-app:       #0d0d0d;
    --bg-sidebar:   #111111;
    --bg-primary:   #161616;
    --bg-secondary: #1c1c1c;
    --bg-input:     #181818;
    --bg-elevated:  #222222;
    --text-primary:   #e8e8e8;
    --text-secondary: #909090;
    --text-dim:       #484848;
    --accent:         #8b5cf6;
    --accent-bg:      rgba(139, 92, 246, 0.09);
    --accent-border:  rgba(139, 92, 246, 0.28);
    --border:         #242424;
    --border-strong:  #3a3a3a;
    --error:          #f87171;
    --sidebar-default-width: 260px;
    --space-page:     clamp(1.5rem, 3vw, 3.5rem);
}

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

/* Scrollbar */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2e2e2e; border-radius: 2px; }
* { scrollbar-width: thin; scrollbar-color: #2e2e2e transparent; }

/* Base */
html, body {
    height: 100%;
    overflow: hidden;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-app);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: clamp(13px, 1vw, 15px);
}

/* ── App Shell ─────────────────────────────────────── */
.app-shell {
    display: flex;
    height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-default-width);
    min-width: 52px;
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
}

/* Brand */
.sidebar-brand {
    padding: 1.3rem 1.1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}
.brand-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}
.brand-text {
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
}

/* Nav */
.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0;
    overflow-y: auto;
    overflow-x: hidden;
}
.nav-section-label {
    display: block;
    padding: 0.5rem 1rem 0.3rem;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
    white-space: nowrap;
    overflow: hidden;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.62rem 0.9rem;
    margin: 0.1rem 0.5rem;
    border-radius: 5px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    border: 1px solid transparent;
    position: relative;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.nav-item:hover:not(.active) {
    color: var(--text-primary);
    border-color: var(--border-strong);
    background: var(--bg-secondary);
}
.nav-item.active {
    color: var(--accent);
    background: var(--accent-bg);
    border-color: var(--accent-border);
}
.nav-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}
.nav-label {
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}
.nav-badge {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
    border: 1px solid var(--border-strong);
    padding: 0.1rem 0.35rem;
    border-radius: 2px;
    flex-shrink: 0;
}

/* Sidebar footer — language switcher */
.sidebar-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    overflow: hidden;
}
.footer-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    flex: 1;
    white-space: nowrap;
}
.lang-switcher {
    display: flex;
    border: 1px solid var(--border-strong);
    border-radius: 3px;
    overflow: hidden;
    flex-shrink: 0;
}
.lang-btn {
    background: transparent;
    color: var(--text-dim);
    border: none;
    border-radius: 0;
    padding: 0.22rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    line-height: 1.4;
}
.lang-btn + .lang-btn {
    border-left: 1px solid var(--border-strong);
}
.lang-btn.active {
    background: var(--accent-bg);
    color: var(--accent);
}
.lang-btn:hover:not(.active) {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Sign-out row — pinned at the very bottom of sidebar */
.sidebar-signout {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.62rem 0.9rem;
    margin: 0 0.5rem 0.5rem;
    border-radius: 5px;
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    border: 1px solid transparent;
    flex-shrink: 0;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.sidebar-signout:hover {
    color: #f87171;
    border-color: rgba(248, 113, 113, 0.25);
    background: rgba(248, 113, 113, 0.06);
}
.sidebar[data-collapsed="true"] .sidebar-signout {
    justify-content: center;
    padding: 0.65rem 0.5rem;
    margin: 0 0.35rem 0.5rem;
}

/* Collapsed state */
.sidebar[data-collapsed="true"] .brand-text,
.sidebar[data-collapsed="true"] .nav-label,
.sidebar[data-collapsed="true"] .nav-section-label,
.sidebar[data-collapsed="true"] .nav-badge,
.sidebar[data-collapsed="true"] .footer-label {
    display: none;
}
.sidebar[data-collapsed="true"] .nav-item {
    justify-content: center;
    padding: 0.65rem 0.5rem;
    margin: 0.1rem 0.35rem;
}
.sidebar[data-collapsed="true"] .sidebar-brand {
    justify-content: center;
}
.sidebar[data-collapsed="true"] .sidebar-footer {
    justify-content: center;
}

/* Resize handle */
.sidebar-resize {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    cursor: col-resize;
    z-index: 10;
}
.sidebar-resize:hover {
    background: var(--accent-border);
}

/* ── Workspace ─────────────────────────────────────── */
.workspace {
    flex: 1;
    min-width: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
}
.workspace-inner {
    padding: var(--space-page) clamp(1.5rem, 4vw, 5rem);
    max-width: 1400px;
}

/* Page header */
.page-header {
    margin-bottom: 2rem;
}
.page-header h1 {
    font-size: clamp(1.2rem, 1.8vw, 1.6rem);
    font-weight: 600;
    margin-bottom: 0.2rem;
}
.page-header p {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

/* ── Buttons — outline only ────────────────────────── */
button, .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.45rem 0.9rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.75rem;
    font-family: inherit;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    line-height: 1;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
button:hover, .btn:hover {
    background: var(--accent-bg);
}
button:active, .btn:active {
    opacity: 0.55;
}
.btn-muted {
    color: var(--text-secondary);
    border-color: var(--border-strong);
}
.btn-muted:hover {
    background: var(--bg-secondary);
    border-color: var(--text-dim);
    color: var(--text-primary);
}
.btn-danger {
    color: var(--error);
    border-color: var(--error);
}
.btn-danger:hover {
    background: rgba(248, 113, 113, 0.08);
}

/* Saves bar & template controls — buttons stretch to input height */
.saves-bar button,
.template-controls button {
    align-self: stretch;
}

/* ── Form Controls ─────────────────────────────────── */
label {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--text-secondary);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
}
label.inline {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.85rem;
    margin-bottom: 0;
    cursor: pointer;
}

input[type="text"],
input[type="number"],
textarea,
select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-strong);
    color: var(--text-primary);
    padding: 0.42rem 0.6rem;
    border-radius: 3px;
    font-size: 0.875rem;
    font-family: inherit;
    line-height: 1.4;
    -webkit-appearance: none;
}
input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
}
input[readonly] {
    color: var(--text-secondary);
    cursor: default;
}
input[type="color"] {
    width: 100%;
    height: 36px;
    background: var(--bg-input);
    border: 1px solid var(--border-strong);
    border-radius: 3px;
    cursor: pointer;
    padding: 2px 4px;
}
input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}
select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0.5 0.5L5 5.5L9.5 0.5' stroke='%23606060' fill='none' stroke-width='1.2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.7rem center;
    padding-right: 2.2rem;
}
textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}
.form-group {
    margin-bottom: 1.1rem;
}
.form-group small {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* Links */
a { color: var(--accent); text-decoration: none; }

/* ── Template Chooser Grid ─────────────────────────── */
.template-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
}
.control-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.control-group label {
    margin: 0;
    white-space: nowrap;
    text-transform: uppercase;
}
.control-group select {
    width: auto;
}
#previewGrid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.label-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    padding: 0.75rem;
    display: flex;
    gap: 0.65rem;
    align-items: center;
    cursor: pointer;
}
.label-box.selected {
    border-color: var(--accent);
    background: var(--accent-bg);
}
.label-box img {
    width: 90px;
    height: auto;
    border-radius: 2px;
}

/* ── Home Page ─────────────────────────────────────── */
.home-hero {
    padding-top: 1rem;
    max-width: 680px;
}
.home-hero h1 {
    font-size: clamp(1.4rem, 2.2vw, 2rem);
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.home-hero p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: clamp(0.85rem, 1vw, 0.95rem);
    line-height: 1.6;
}
.home-actions {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
}
.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.1rem;
    margin-top: 3rem;
}
.home-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    padding: clamp(1rem, 2vw, 1.75rem);
    text-decoration: none;
    color: var(--text-primary);
    display: block;
}
.home-card h3 {
    font-size: clamp(0.88rem, 1vw, 1rem);
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}
.home-card p {
    font-size: clamp(0.78rem, 0.85vw, 0.88rem);
    color: var(--text-secondary);
    line-height: 1.55;
}
.home-card.active-card {
    border-color: var(--accent-border);
    background: var(--accent-bg);
}
.home-card.active-card h3 { color: var(--accent); }

/* ── Save popover ──────────────────────────────────── */
.save-wrap {
    position: relative;
}
.save-popover {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    padding: 0.55rem;
    flex-direction: column;
    gap: 0.4rem;
    z-index: 200;
    min-width: 195px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.55);
}
.save-popover.open { display: flex; }
.save-popover input {
    width: 100%;
    font-size: 0.8rem;
}
.save-popover button {
    width: 100%;
    justify-content: center;
}

/* ── Saves bar (below editor top bar) ──────────────── */
.saves-bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-sidebar);
}
.saves-bar select {
    flex: 1;
    min-width: 0;
}
.saves-bar button {
    flex-shrink: 0;
    padding: 0.38rem 0.65rem;
}

/* ── Error ─────────────────────────────────────────── */
.error-message {
    color: var(--error);
    padding: 0.75rem 1rem;
    background: rgba(248, 113, 113, 0.07);
    border-radius: 3px;
    border-left: 2px solid var(--error);
    font-size: 0.88rem;
}

/* ── Loading ───────────────────────────────────────── */
.loading {
    color: var(--text-secondary);
    font-size: 0.88rem;
}