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

:root {
    --bg: #0C0F14;
    --surface: #141820;
    --surface-2: #1A1F2B;
    --border: #1E2330;
    --border-hover: #2A3040;
    --amber: #E8913A;
    --amber-glow: rgba(232, 145, 58, 0.15);
    --amber-dark: #C47A2E;
    --text: #E8E6E3;
    --text-muted: #8A8F9E;
    --white: #FFFFFF;
    --green: #34D399;
    --green-bg: rgba(52, 211, 153, 0.12);
    --blue: #60A5FA;
    --blue-bg: rgba(96, 165, 250, 0.12);
    --red: #F87171;
    --red-bg: rgba(248, 113, 113, 0.12);
    --yellow: #FBBF24;
    --yellow-bg: rgba(251, 191, 36, 0.12);
    --purple: #A78BFA;
    --purple-bg: rgba(167, 139, 250, 0.12);
    --sidebar-w: 240px;
}

body {
    font-family: 'DM Sans', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
    width: var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 24px 16px;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
}
.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: var(--white);
    letter-spacing: -0.5px;
    text-decoration: none;
    margin-bottom: 32px;
    display: block;
}
.logo span { color: var(--amber); }

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    width: 100%;
    text-align: left;
}
.nav-item:hover { color: var(--text); background: var(--surface-2); }
.nav-item.active {
    color: var(--amber);
    background: var(--amber-glow);
}
.nav-item svg { flex-shrink: 0; }

/* MAIN */
.main {
    flex: 1;
    margin-left: var(--sidebar-w);
    padding: 28px 36px;
    max-width: calc(100vw - var(--sidebar-w));
}

/* HEADER */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}
.header h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
}
.header-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}
.header-actions { display: flex; gap: 10px; }

/* BUTTONS */
.btn-primary {
    background: var(--amber);
    color: var(--bg);
    border: none;
    padding: 9px 20px;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.btn-primary:hover { background: var(--amber-dark); }
.btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 9px 20px;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.btn-secondary:hover { border-color: var(--border-hover); background: var(--border); }
.btn-link {
    background: none;
    border: none;
    color: var(--amber);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}
.btn-link:hover { text-decoration: underline; }
.btn-icon {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.15s ease;
}
.btn-icon:hover { border-color: var(--amber); color: var(--amber); }
.btn-text {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 6px;
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    cursor: pointer;
    margin-left: 12px;
}
.btn-text:hover { color: var(--amber); border-color: var(--amber); }
.btn-sm {
    padding: 5px 12px;
    font-size: 12px;
    border-radius: 6px;
}
.btn-danger {
    background: var(--red-bg);
    color: var(--red);
    border: 1px solid rgba(248,113,113,0.2);
}
.btn-danger:hover { background: rgba(248,113,113,0.2); }
.btn-success {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid rgba(52,211,153,0.2);
}
.btn-success:hover { background: rgba(52,211,153,0.2); }

/* VIEWS */
.view { display: none; }
.view.active { display: block; }

/* STATS */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 22px;
    transition: border-color 0.2s;
}
.stat-card:hover { border-color: var(--border-hover); }
.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
}
.stat-value.amber { color: var(--amber); }

/* SECTION LAYOUT */
.section-row {
    display: flex;
    gap: 20px;
}
.flex-2 { flex: 2; }
.flex-1 { flex: 1; }
.section-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}
.section-header h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
}

/* JOB LIST */
.job-list { display: flex; flex-direction: column; gap: 10px; }
.job-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.job-card:hover { border-color: var(--amber); transform: translateX(2px); }
.job-time {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--amber);
    min-width: 56px;
}
.job-info { flex: 1; }
.job-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--white);
}
.job-customer {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}
.status-badge {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 10px;
    font-weight: 600;
    white-space: nowrap;
}
.status-scheduled { color: var(--amber); background: var(--amber-glow); }
.status-in_progress { color: var(--blue); background: var(--blue-bg); }
.status-completed { color: var(--green); background: var(--green-bg); }
.status-cancelled { color: var(--red); background: var(--red-bg); }

/* INVOICE LIST */
.invoice-list { display: flex; flex-direction: column; gap: 10px; }
.invoice-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.invoice-card:hover { border-color: var(--amber); }
.invoice-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--white);
}
.invoice-customer {
    font-size: 12px;
    color: var(--text-muted);
}
.invoice-amount {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    text-align: right;
}
.status-draft { color: var(--text-muted); background: rgba(138,143,158,0.12); }
.status-sent { color: var(--blue); background: var(--blue-bg); }
.status-paid { color: var(--green); background: var(--green-bg); }
.status-overdue { color: var(--red); background: var(--red-bg); }

/* WEEK NAV */
.week-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}
.week-label {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    min-width: 220px;
    text-align: center;
}

/* CALENDAR */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 12px;
}
.cal-day {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 12px;
    min-height: 180px;
    transition: border-color 0.2s;
}
.cal-day:hover { border-color: var(--border-hover); }
.cal-day.today { border-color: var(--amber); }
.cal-day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.cal-day-name {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}
.cal-day-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}
.cal-day.today .cal-day-num {
    color: var(--bg);
    background: var(--amber);
    width: 26px; height: 26px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.cal-jobs { display: flex; flex-direction: column; gap: 6px; }
.cal-job {
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    border-left: 3px solid var(--amber);
    background: var(--amber-glow);
    color: var(--text);
    transition: opacity 0.15s;
}
.cal-job:hover { opacity: 0.8; }
.cal-job.completed { border-left-color: var(--green); background: var(--green-bg); }
.cal-job.in_progress { border-left-color: var(--blue); background: var(--blue-bg); }
.cal-job.cancelled { border-left-color: var(--red); background: var(--red-bg); opacity: 0.6; }
.cal-job-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* TABLE */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}
.search-input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 16px;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    width: 300px;
    outline: none;
    transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--amber); }
.search-input::placeholder { color: var(--text-muted); }

.filter-tabs { display: flex; gap: 4px; }
.filter-tab {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 7px 16px;
    border-radius: 6px;
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.filter-tab:hover { color: var(--text); border-color: var(--border-hover); }
.filter-tab.active { color: var(--amber); border-color: var(--amber); background: var(--amber-glow); }

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
.data-table th {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.data-table td {
    padding: 14px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.data-table tr { transition: background 0.1s; }
.data-table tbody tr:hover { background: var(--surface); }
.data-table tbody tr { cursor: pointer; }

/* MODAL */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 560px;
    max-width: 95vw;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 26px;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 26px; }

/* FORM */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--amber); }
.form-select { appearance: none; cursor: pointer; }
.form-textarea { resize: vertical; min-height: 80px; }
.form-row { display: flex; gap: 14px; }
.form-row .form-group { flex: 1; }
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

/* DETAIL VIEW INSIDE MODAL */
.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.detail-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.detail-value { font-size: 14px; color: var(--white); }
.detail-actions {
    display: flex;
    gap: 8px;
    margin-top: 20px;
}

/* LINE ITEMS */
.line-items { margin: 12px 0; }
.line-item-row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
}
.line-item-row .form-input { flex: 2; }
.line-item-row .form-input.small { flex: 1; }
.btn-remove-item {
    background: none;
    border: none;
    color: var(--red);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
}
.line-items-total {
    text-align: right;
    padding: 12px 0;
    border-top: 1px solid var(--border);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}
.empty-state p { font-size: 14px; margin-bottom: 16px; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .section-row { flex-direction: column; }
    .calendar-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: fixed;
        top: auto; bottom: 0; left: 0; right: 0;
        height: auto;
        flex-direction: row;
        padding: 8px;
        border-right: none;
        border-top: 1px solid var(--border);
    }
    .logo { display: none; }
    .sidebar-nav { flex-direction: row; justify-content: space-around; width: 100%; }
    .nav-item { flex-direction: column; gap: 2px; font-size: 10px; padding: 8px; }
    .main { margin-left: 0; padding: 20px 16px 80px; max-width: 100vw; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .calendar-grid { grid-template-columns: repeat(2, 1fr); }
    .toolbar { flex-direction: column; align-items: stretch; }
    .search-input { width: 100%; }
}