/* ============================================
   SUNTIKAS Purchase Management System
   Main Stylesheet
   ============================================ */

:root {
    --primary:   #1a56db;
    --primary-d: #1447c5;
    --success:   #057a55;
    --success-d: #046c4e;
    --danger:    #c81e1e;
    --warning:   #c27803;
    --secondary: #6b7280;
    --bg:        #f3f4f6;
    --card-bg:   #ffffff;
    --border:    #e5e7eb;
    --text:      #111827;
    --text-muted:#6b7280;
    --shadow:    0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);

    --taiba:     #1a56db;
    --safiyyah:  #057a55;
    --makkah:    #9333ea;
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    background: linear-gradient(135deg, #1e3a5f 0%, #1a56db 100%);
    color: white;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.nav-links { display: flex; align-items: center; gap: 12px; }
.nav-user {
    color: rgba(255,255,255,0.8);
    font-size: 13px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.1);
    border-radius: 6px;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    background: linear-gradient(135deg, #1e3a5f 0%, #1a56db 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-wrapper { width: 100%; max-width: 420px; padding: 20px; }
.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.logo-icon { font-size: 48px; margin-bottom: 8px; }
.login-logo h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 2px;
}
.login-logo p { color: var(--text-muted); margin-top: 4px; }
.login-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ============================================
   LAYOUT
   ============================================ */
.container { max-width: 1400px; margin: 0 auto; padding: 24px; }
.container.wide { max-width: 1600px; }
.mt-20 { margin-top: 20px; }

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f9fafb;
}
.card-header h3 { font-size: 15px; font-weight: 600; }

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header { margin-bottom: 20px; }
.page-header h2 { font-size: 22px; font-weight: 700; }
.page-header p { color: var(--text-muted); margin-top: 4px; }

/* ============================================
   FORMS
   ============================================ */
.entry-card { padding: 28px; }
.form-row { display: flex; gap: 16px; margin-bottom: 4px; }
.form-row.thirds > * { flex: 1; }
.form-row.halves > * { flex: 1; }

.form-group { margin-bottom: 16px; flex: 1; }
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #374151;
}
.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: white;
    transition: border-color .2s, box-shadow .2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,86,219,.15);
}
.form-control.computed {
    background: #f0fdf4;
    border-color: #86efac;
    color: #15803d;
    font-weight: 600;
}
.form-control.invalid { border-color: var(--danger); }

.required { color: var(--danger); }

/* ============================================
   AMOUNTS SECTION
   ============================================ */
.amounts-section {
    background: #f8faff;
    border: 1px solid #dbeafe;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}
.section-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid #dbeafe;
}

/* Calculated Summary Box */
.calc-summary {
    background: #1e3a5f;
    color: white;
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 20px;
}
.calc-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.calc-row:last-child { border-bottom: none; }
.calc-row.total-row {
    font-size: 16px;
    font-weight: 700;
    padding-top: 10px;
    margin-top: 4px;
    color: #fbbf24;
}
.text-danger { color: #fca5a5 !important; }
.text-warning { color: #fcd34d !important; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all .2s;
}
.btn:hover { opacity: .9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary  { background: var(--primary);   color: white; }
.btn-success  { background: var(--success);   color: white; }
.btn-danger   { background: var(--danger);    color: white; }
.btn-secondary{ background: var(--secondary); color: white; }
.btn-outline  { background: transparent; border: 1.5px solid rgba(255,255,255,0.5); color: white; }
.btn-sm       { padding: 5px 12px; font-size: 12px; }
.btn-lg       { padding: 12px 28px; font-size: 15px; }
.btn-block    { width: 100%; justify-content: center; margin-top: 8px; }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 8px;
}
.align-end { display: flex; align-items: flex-end; gap: 8px; }

/* ============================================
   ALERTS
   ============================================ */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 500;
}
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #86efac; }
.alert-danger   { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-warning  { background: #fffbeb; color: #92400e; border: 1px solid #fcd34d; }

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}
.badge-primary { background: #dbeafe; color: var(--primary); }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-auto    { background: #d1fae5; color: #065f46; font-size: 10px; }
.badge-taiba    { background: #dbeafe; color: #1e40af; }
.badge-safiyyah { background: #dcfce7; color: #14532d; }
.badge-makkah   { background: #f3e8ff; color: #581c87; }

/* ============================================
   TABLES
   ============================================ */
.table-wrapper { overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.data-table thead th {
    background: #1e3a5f;
    color: white;
    padding: 10px 12px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.data-table tbody tr:nth-child(even) { background: #f9fafb; }
.data-table tbody tr:hover { background: #eff6ff; }
.data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table tfoot td {
    background: #1e3a5f;
    color: #fbbf24;
    font-weight: 700;
    padding: 10px 12px;
}
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-num    { text-align: right; font-family: 'Courier New', monospace; }

/* ============================================
   DASHBOARD KPI
   ============================================ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.kpi-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
}
.kpi-card.green  { border-color: var(--success); }
.kpi-card.purple { border-color: #9333ea; }
.kpi-card.orange { border-color: #ea580c; }
.kpi-card.cyan   { border-color: #0891b2; }
.kpi-card.loading { opacity: .5; }

.kpi-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.kpi-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}
.kpi-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ============================================
   BRANCH CARDS
   ============================================ */
.branch-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.branch-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
}
.branch-card.taiba    { border-left: 5px solid var(--taiba); }
.branch-card.safiyyah { border-left: 5px solid var(--safiyyah); }
.branch-card.makkah   { border-left: 5px solid var(--makkah); }
.branch-name {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.branch-stat { display: flex; justify-content: space-between; font-size: 13px; padding: 4px 0; }
.branch-stat span:last-child { font-weight: 600; }

/* ============================================
   CHARTS
   ============================================ */
.chart-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
.chart-card { padding: 20px; }
.chart-card h3 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #374151;
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-card { padding: 16px 20px; margin-bottom: 20px; }
.filter-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}
.filter-row .form-group { margin-bottom: 0; min-width: 140px; }

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 16px;
}
.page-btn {
    padding: 6px 12px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    background: white;
    transition: all .15s;
}
.page-btn:hover, .page-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .form-row { flex-direction: column; gap: 0; }
    .branch-cards { grid-template-columns: 1fr; }
    .chart-row { grid-template-columns: 1fr; }
    .filter-row { flex-direction: column; }
    .container { padding: 16px; }
}

@media (max-width: 600px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .form-actions { flex-direction: column; }
    .btn-block { margin-top: 0; }
}