/**
 * PowerMarketing Documentation Styles
 * Matches the PowerMarketing UI look & feel
 */

/* =============================================================================
   CSS Variables — Matching PowerMarketing Theme
   ============================================================================= */

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --accent-color: #06b6d4;
    --dark-bg: #0f1117;
    --surface: #1a1d27;
    --surface2: #22263a;
    --card-bg: rgba(26, 29, 39, 0.95);
    --card-border: #2d3148;
    --text-primary: #e2e8f0;
    --text-secondary: #c7c9d9;
    --text-muted: #8892a4;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    --sidebar-width: 280px;
    --header-height: 60px;
    --content-max-width: 900px;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* =============================================================================
   Reset & Base
   ============================================================================= */

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--dark-bg);
    min-height: 100vh;
}

/* =============================================================================
   Scroll Progress
   ============================================================================= */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: 9999;
    transition: width 0.1s linear;
}

/* =============================================================================
   Layout
   ============================================================================= */

.docs-shell {
    display: flex;
    min-height: 100vh;
}

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

.docs-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(26, 29, 39, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
}

.docs-header-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
    white-space: nowrap;
    margin-right: 1.5rem;
}

.docs-header-brand .brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
}

.docs-header-nav {
    display: flex;
    gap: 0.2rem;
    flex: 1;
    overflow-x: auto;
}

.docs-header-nav::-webkit-scrollbar { display: none; }

.docs-nav-link {
    padding: 0.4rem 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.83rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.docs-nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--card-border);
}

.docs-nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

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

.docs-back-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: var(--surface2);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.83rem;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.docs-back-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    padding: 0.4rem 0.6rem;
    cursor: pointer;
}

/* =============================================================================
   Left Sidebar
   ============================================================================= */

.docs-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: rgba(22, 25, 37, 0.98);
    border-right: 1px solid var(--card-border);
    overflow-y: auto;
    padding: 1.25rem 0;
    z-index: 100;
}

.docs-sidebar::-webkit-scrollbar { width: 5px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.toc-title {
    padding: 0 1.25rem 0.75rem;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 0.75rem;
}

.toc-nav { list-style: none; padding: 0; margin: 0; }
.toc-nav li { margin: 0; }

.toc-link {
    display: block;
    padding: 0.45rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.865rem;
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.toc-link:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.03);
    border-left-color: rgba(99, 102, 241, 0.4);
}

.toc-link.active {
    color: var(--accent-color);
    background: rgba(6, 182, 212, 0.07);
    border-left-color: var(--accent-color);
    font-weight: 500;
}

.toc-link.toc-h3 {
    padding-left: 2.25rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.toc-link.toc-h3.active { color: var(--accent-color); }

/* =============================================================================
   Main Content
   ============================================================================= */

.docs-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 2.5rem 3rem;
    min-height: calc(100vh - var(--header-height));
}

.docs-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

/* =============================================================================
   Typography
   ============================================================================= */

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
}

h1 {
    font-size: 2.1rem;
    margin-top: 0;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--card-border);
}

h2 {
    font-size: 1.4rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--card-border);
    margin-top: 3rem;
}

h3 { font-size: 1.1rem; color: var(--text-secondary); }
h4 { font-size: 1rem; color: var(--text-muted); }

p { margin: 0 0 1rem; color: var(--text-secondary); }

a { color: var(--accent-color); text-decoration: none; }
a:hover { text-decoration: underline; }

strong { color: var(--text-primary); font-weight: 600; }

ul, ol { padding-left: 1.75rem; margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; color: var(--text-secondary); }
li > ul, li > ol { margin-top: 0.35rem; }

hr {
    border: none;
    border-top: 1px solid var(--card-border);
    margin: 2.5rem 0;
}

/* =============================================================================
   Code
   ============================================================================= */

code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--surface2);
    color: var(--accent-color);
    padding: 0.15em 0.45em;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--card-border);
}

pre {
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-md);
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin: 1.25rem 0;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.65;
}

/* =============================================================================
   Tables
   ============================================================================= */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.25rem 0;
    font-size: 0.9rem;
}

th {
    background: var(--surface2);
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.7rem 1rem;
    text-align: left;
    border-bottom: 2px solid var(--card-border);
}

td {
    padding: 0.65rem 1rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--card-border);
    vertical-align: top;
}

tr:hover td { background: rgba(255,255,255,0.02); }

/* =============================================================================
   Callouts
   ============================================================================= */

.callout {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius-md);
    margin: 1.25rem 0;
    border-left: 4px solid;
    font-size: 0.93rem;
}

.callout-tip {
    background: rgba(34, 197, 94, 0.08);
    border-color: var(--success-color);
    color: var(--text-secondary);
}

.callout-warning {
    background: rgba(245, 158, 11, 0.08);
    border-color: var(--warning-color);
    color: var(--text-secondary);
}

.callout-danger {
    background: rgba(239, 68, 68, 0.08);
    border-color: var(--danger-color);
    color: var(--text-secondary);
}

.callout-info {
    background: rgba(59, 130, 246, 0.08);
    border-color: var(--info-color);
    color: var(--text-secondary);
}

.callout strong { display: block; margin-bottom: 0.35rem; }

/* =============================================================================
   Badges
   ============================================================================= */

.badge {
    display: inline-block;
    padding: 0.15em 0.55em;
    border-radius: 99px;
    font-size: 0.72em;
    font-weight: 600;
    vertical-align: middle;
}

.badge-success { background: rgba(34,197,94,.15); color: var(--success-color); }
.badge-warning { background: rgba(245,158,11,.15); color: var(--warning-color); }
.badge-danger  { background: rgba(239,68,68,.15);  color: var(--danger-color); }
.badge-info    { background: rgba(59,130,246,.15);  color: var(--info-color); }

/* =============================================================================
   Navigation Buttons (Prev / Next)
   ============================================================================= */

.docs-nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
    gap: 1rem;
}

.docs-nav-btn {
    display: flex;
    flex-direction: column;
    padding: 1rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
    flex: 1;
    max-width: 240px;
}

.docs-nav-btn:hover {
    border-color: var(--primary-color);
    background: var(--surface2);
    text-decoration: none;
}

.docs-nav-btn-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.docs-nav-btn-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.docs-nav-btn--next {
    text-align: right;
    margin-left: auto;
}

/* =============================================================================
   Footer
   ============================================================================= */

.docs-footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
}

.docs-footer a { color: var(--text-muted); }
.docs-footer a:hover { color: var(--accent-color); }

/* =============================================================================
   Index Page Specific
   ============================================================================= */

.docs-index-main {
    margin-left: 0 !important;
    padding: 3rem !important;
}

.docs-hero {
    text-align: center;
    padding: 3rem 0 3.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.docs-hero-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.docs-hero h1 {
    font-size: 2.4rem;
    border: none;
    padding: 0;
    margin-bottom: 0.75rem;
}

.docs-hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto;
}

.docs-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    max-width: 960px;
    margin: 0 auto 3rem;
}

.docs-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.docs-card:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25), 0 0 24px rgba(99, 102, 241, 0.08);
    text-decoration: none;
}

.docs-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
    color: var(--accent-color);
}

.docs-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.docs-card-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    flex: 1;
    line-height: 1.55;
}

.docs-card-tag {
    display: inline-block;
    margin-top: 0.85rem;
    font-size: 0.73rem;
    font-weight: 600;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* =============================================================================
   Visual Workflows (flow diagrams, tutorial steps, track branches)
   ============================================================================= */

/* Eyebrow label */
.docs-eyebrow {
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--accent-color);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

/* Horizontal flow diagram: <div class="docs-flow"><div class="docs-flow-step">…</div>…</div> */
.docs-flow { display: flex; flex-wrap: wrap; gap: 0; margin: 1.75rem 0; }
.docs-flow-step {
    flex: 1; min-width: 140px;
    background: var(--surface); border: 1px solid var(--card-border);
    border-radius: 12px; padding: 0.9rem 1rem; margin-right: 34px; position: relative;
}
.docs-flow-step:last-child { margin-right: 0; }
.docs-flow-step::after {
    content: '\2192'; position: absolute; right: -26px; top: 50%;
    transform: translateY(-50%); color: var(--primary-color); font-size: 1.3rem;
}
.docs-flow-step:last-child::after { display: none; }
.docs-flow-step .flow-num { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-color); font-weight: 700; }
.docs-flow-step .flow-title { font-weight: 600; color: var(--text-primary); margin-top: 0.2rem; }
.docs-flow-step .flow-desc { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; line-height: 1.45; }
.docs-flow-step.flow-accent { border-color: rgba(99,102,241,.5); box-shadow: 0 0 22px rgba(99,102,241,.15); }

/* Vertical numbered tutorial steps: <ol class="tutorial-steps"><li class="tutorial-step"><h4>…</h4>…</li></ol> */
.tutorial-steps { list-style: none; padding: 0; margin: 1.75rem 0; counter-reset: tut; }
.tutorial-step { position: relative; padding: 0 0 1.6rem 3.25rem; border-left: 2px solid var(--card-border); margin-left: 1rem; }
.tutorial-step:last-child { border-left-color: transparent; padding-bottom: 0; }
.tutorial-step::before {
    counter-increment: tut; content: counter(tut);
    position: absolute; left: -1.05rem; top: -0.2rem; width: 2.1rem; height: 2.1rem;
    border-radius: 50%; background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.95rem; box-shadow: 0 4px 12px rgba(99,102,241,.4);
}
.tutorial-step h4 { margin: 0 0 0.4rem; color: var(--text-primary); font-size: 1.02rem; }

/* Two-track / branch diagram */
.track-diagram { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.75rem 0; }
.track-card { border-radius: 12px; padding: 1rem 1.25rem; border: 1px solid var(--card-border); background: var(--surface); }
.track-card.track1 { border-left: 4px solid var(--success-color); }
.track-card.track2 { border-left: 4px solid var(--primary-color); }
.track-card h4 { margin-top: 0; color: var(--text-primary); }
.track-card .track-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 700; }
.track-card.track1 .track-label { color: var(--success-color); }
.track-card.track2 .track-label { color: var(--primary-color); }
@media (max-width: 600px) { .track-diagram { grid-template-columns: 1fr; } }

/* Stat strip for docs */
.docs-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.docs-stat { background: var(--surface); border: 1px solid var(--card-border); border-radius: 12px; padding: 1rem 1.25rem; position: relative; overflow: hidden; }
.docs-stat::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary-color), var(--accent-color)); }
.docs-stat .ds-value { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); }
.docs-stat .ds-label { font-size: 0.8rem; color: var(--text-muted); }

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

@media (max-width: 900px) {
    .docs-sidebar { display: none; }
    .docs-main { margin-left: 0; padding: 1.5rem; }
    .docs-header-nav { display: none; }
    .mobile-menu-toggle { display: flex; }
}

@media (max-width: 600px) {
    .docs-hero h1 { font-size: 1.8rem; }
    .docs-main { padding: 1rem; }
    .docs-cards { grid-template-columns: 1fr; }
}