:root {
    --paper: #faf8f5;
    --ink: #141619;
    --card: #ffffff;
    --border: rgba(20, 22, 25, 0.08);
    --border-hover: rgba(20, 22, 25, 0.15);
    --muted: #5c626d;
    --accent: #2c5942;
    --accent-hover: #1b3d2b;
    --accent-soft: rgba(44, 89, 66, 0.08);
    --terracotta: #b85b3f;
    --terracotta-soft: rgba(184, 91, 63, 0.1);
    --ochre: #ca7f2c;
    --ochre-soft: rgba(202, 127, 44, 0.1);
    --sky: #3b7e90;
    --sky-soft: rgba(59, 126, 144, 0.1);
    --success: #2c5942;
    --danger: #b85b3f;
    --warning: #ca7f2c;
    --font-serif: 'Fraunces', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --shadow-subtle: 0 12px 40px rgba(20, 22, 25, 0.04);
    --shadow-medium: 0 20px 50px rgba(20, 22, 25, 0.08);
    --radius: 12px;
}

body.dark {
    --paper: #0c0e11;
    --ink: #f2f4f7;
    --card: #13171c;
    --border: rgba(242, 244, 247, 0.08);
    --border-hover: rgba(242, 244, 247, 0.16);
    --muted: #9aa1ad;
    --accent: #4fa078;
    --accent-hover: #6cb892;
    --accent-soft: rgba(79, 160, 120, 0.14);
    --terracotta: #d87c60;
    --terracotta-soft: rgba(216, 124, 96, 0.15);
    --ochre: #dda15e;
    --ochre-soft: rgba(221, 161, 94, 0.15);
    --sky: #64a6bd;
    --sky-soft: rgba(100, 166, 189, 0.15);
    --shadow-subtle: 0 12px 40px rgba(0, 0, 0, 0.35);
    --shadow-medium: 0 20px 50px rgba(0, 0, 0, 0.45);
}

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

html {
    scroll-behavior: smooth;
    background-color: transparent;
}

body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background 0.3s ease, color 0.3s ease;
}

em {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--terracotta);
    font-weight: 500;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

.btn-solid {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--ink);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.btn-solid:hover {
    background: #0a0b0d;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--ink);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-outline:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ghost:hover {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: var(--accent-soft);
}

/* TOPBAR */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px min(48px, 5vw);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(250, 248, 245, 0.7);
    backdrop-filter: blur(8px);
    z-index: 100;
}

body.dark .topbar {
    background: rgba(12, 14, 17, 0.7);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
    font-family: var(--font-serif);
}

.brand-mark {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
}

.topnav {
    display: flex;
    gap: 26px;
    align-items: center;
}

.topnav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--muted);
    transition: color 0.2s ease;
}

.topnav a:hover {
    color: var(--ink);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* HERO / LANDING */
.hero {
    padding: 120px min(48px, 6vw) 80px;
    text-align: left;
}

.kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(40px, 6vw, 64px);
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-sub {
    font-size: 17px;
    color: var(--muted);
    max-width: 560px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* LAYOUT */
.app-layout {
    display: flex;
    min-height: calc(100vh - 64px);
}

.sidebar {
    width: 260px;
    border-right: 1px solid var(--border);
    background: var(--card);
    display: flex;
    flex-direction: column;
    padding: 28px 0;
}

body.dark .sidebar {
    background: var(--card);
}

.brand-sidebar {
    padding: 0 24px 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.user-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px 16px;
}

.user-photo {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
}

.user-info {
    overflow: hidden;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu {
    padding: 0 24px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 16px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
    margin-bottom: 4px;
}

.nav-item:hover, .nav-item.active {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: var(--accent-soft);
}

.nav-item.active {
    font-weight: 600;
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-content {
    flex: 1;
    padding: 32px min(48px, 5vw);
    overflow-y: auto;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-family: var(--font-serif);
    font-size: 32px;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.page-sub {
    color: var(--muted);
    font-size: 15px;
}

/* CARDS */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-subtle);
}

.stat-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 8px;
}

.stat-value {
    font-family: var(--font-serif);
    font-size: 34px;
    line-height: 1.1;
    margin-bottom: 4px;
}

.stat-delta {
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-delta.up { color: var(--success); }
.stat-delta.down { color: var(--danger); }

/* TABLES */
.table-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 32px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: rgba(0,0,0,0.02);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--muted);
}

body.dark th {
    background: rgba(255,255,255,0.02);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--accent-soft); }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.status-pending { background: var(--ochre-soft); color: var(--ochre); }
.status-contractors { background: var(--sky-soft); color: var(--sky); }
.status-rejected { background: var(--terracotta-soft); color: var(--terracotta); }
.status-hired { background: rgba(44,89,66,0.1); color: var(--success); }

/* SEARCH & FILTERS */
.search-bar {
    position: relative;
    max-width: 420px;
    margin-bottom: 24px;
}

.search-bar input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--ink);
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 14px;
}

.filter-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

/* ACTIONS BAR */
.actions-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

/* ALERT */
.alert-demo {
    position: relative;
    width: 100%;
    padding: 10px 20px;
    background: var(--ochre-soft);
    border-bottom: 1px solid var(--ochre-soft);
    color: var(--ochre);
    font-size: 13px;
    font-weight: 600;
    z-index: 1000;
    text-align: center;
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    color: var(--muted);
}

.empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

/* CHARTS */
.chart-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-subtle);
}

.chart-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--ink);
}

/* GRID */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid {
    display: grid;
    gap: 20px;
}

/* FORM */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ink);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--ink);
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
}

/* MODAL */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20,22,25,0.35);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

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

.modal {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 90%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 32px;
    transform: translateY(20px);
    transition: transform 0.25s ease;
    box-shadow: var(--shadow-medium);
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-title {
    font-family: var(--font-serif);
    font-size: 24px;
    margin-bottom: 8px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* DARK MODE TOGGLE */
.dark-toggle {
    background: var(--accent-soft);
    border: 1px solid var(--border);
    color: var(--ink);
    width: 36px;
    height: 36px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s ease;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .topnav { display: none; }
    .hero h1 { font-size: 32px; }
    .stat-grid { grid-template-columns: 1fr; }
    .table-wrap { overflow-x: auto; }
    th, td { padding: 12px 16px; font-size: 13px; }
}