/* ============================================================
   ConnextureAI Legal Portal - Stylesheet
   Clean, professional design with a utility-forward aesthetic
   ============================================================ */

:root {
    --color-bg: #f6f7f9;
    --color-surface: #ffffff;
    --color-surface-hover: #f9fafb;
    --color-border: #e2e5ea;
    --color-border-light: #eef0f3;
    --color-text: #1a1d23;
    --color-text-secondary: #5c6370;
    --color-text-muted: #8b919d;
    
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #eff4ff;
    
    --color-approved: #059669;
    --color-approved-bg: #ecfdf5;
    --color-rejected: #dc2626;
    --color-rejected-bg: #fef2f2;
    --color-pending: #d97706;
    --color-pending-bg: #fffbeb;
    --color-review: #7c3aed;
    --color-review-bg: #f5f3ff;
    --color-revision: #ea580c;
    --color-revision-bg: #fff7ed;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.06);
    
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ---- Navigation ---- */
.main-nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: 60px;
    gap: 32px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text);
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.brand-icon {
    font-size: 22px;
    color: var(--color-primary);
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 4px;
    flex: 1;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.nav-link:hover { color: var(--color-text); background: var(--color-surface-hover); }
.nav-link.active { color: var(--color-primary); background: var(--color-primary-light); }

.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    flex-shrink: 0;
}

.user-name { font-weight: 600; color: var(--color-text); }

.user-role {
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-logout {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.nav-logout:hover { color: var(--color-rejected); background: var(--color-rejected-bg); }

/* ---- Main Content ---- */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px;
    width: 100%;
    flex: 1;
}

.main-footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 13px;
    border-top: 1px solid var(--color-border-light);
    margin-top: auto;
}

/* ---- Page Headers ---- */
.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--color-text);
}

.page-header p {
    color: var(--color-text-secondary);
    margin-top: 6px;
    font-size: 15px;
}

/* ---- Cards ---- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border-light);
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
}

/* ---- Stats Grid ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    font-family: var(--font-mono);
    line-height: 1.1;
}

.stat-value.color-pending { color: var(--color-pending); }
.stat-value.color-review { color: var(--color-review); }
.stat-value.color-approved { color: var(--color-approved); }
.stat-value.color-rejected { color: var(--color-rejected); }
.stat-value.color-revision { color: var(--color-revision); }

.stat-label {
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 6px;
}

/* ---- Tables ---- */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

thead {
    background: var(--color-bg);
}

th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--color-surface-hover); }

td a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

td a:hover { text-decoration: underline; }

/* ---- Status Badges ---- */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-pending { background: var(--color-pending-bg); color: var(--color-pending); }
.badge-review { background: var(--color-review-bg); color: var(--color-review); }
.badge-approved { background: var(--color-approved-bg); color: var(--color-approved); }
.badge-rejected { background: var(--color-rejected-bg); color: var(--color-rejected); }
.badge-revision { background: var(--color-revision-bg); color: var(--color-revision); }

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-group .hint {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    font-weight: 400;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea { resize: vertical; min-height: 80px; }

input[type="file"] {
    padding: 10px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    width: 100%;
    cursor: pointer;
    background: var(--color-bg);
    font-size: 14px;
}

input[type="file"]:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); }

.btn-success {
    background: var(--color-approved);
    color: #fff;
}
.btn-success:hover { background: #047857; }

.btn-danger {
    background: var(--color-rejected);
    color: #fff;
}
.btn-danger:hover { background: #b91c1c; }

.btn-warning {
    background: var(--color-revision);
    color: #fff;
}
.btn-warning:hover { background: #c2410c; }

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}
.btn-outline:hover {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ---- Review Checklist ---- */
.review-section {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
}

.review-section-header {
    padding: 16px 20px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.review-section-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.review-section-body {
    padding: 20px;
}

.review-toggle {
    display: flex;
    gap: 8px;
}

.review-toggle label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.review-toggle input[type="radio"] { display: none; }

.review-toggle label:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.review-result {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
}

.result-pass { background: var(--color-approved-bg); color: var(--color-approved); }
.result-fail { background: var(--color-rejected-bg); color: var(--color-rejected); }
.result-na { background: var(--color-bg); color: var(--color-text-muted); }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ---- Alerts ---- */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success { background: var(--color-approved-bg); color: var(--color-approved); border: 1px solid #a7f3d0; }
.alert-error { background: var(--color-rejected-bg); color: var(--color-rejected); border: 1px solid #fecaca; }
.alert-warning { background: var(--color-pending-bg); color: var(--color-pending); border: 1px solid #fde68a; }
.alert-info { background: var(--color-primary-light); color: var(--color-primary); border: 1px solid #bfdbfe; }

/* ---- Activity Log ---- */
.activity-log {
    list-style: none;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 14px;
}

.activity-item:last-child { border-bottom: none; }

.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    margin-top: 6px;
    flex-shrink: 0;
}

.activity-time {
    color: var(--color-text-muted);
    font-size: 12px;
    font-family: var(--font-mono);
    margin-top: 2px;
}

/* ---- Login Page ---- */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, #f0f4ff 0%, #f6f7f9 50%, #f0fdf4 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.login-card h1 {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.login-card .subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

.login-card .btn { width: 100%; justify-content: center; }

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--color-text-secondary);
}

.login-footer a { color: var(--color-primary); text-decoration: none; font-weight: 500; }

/* ---- Contract Detail ---- */
.contract-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

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

.meta-item p {
    font-size: 15px;
    font-weight: 500;
    margin-top: 2px;
}

/* ---- Filter Bar ---- */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar select,
.filter-bar input {
    width: auto;
    min-width: 180px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-inner { gap: 16px; }
    .nav-links { display: none; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .contract-meta { grid-template-columns: 1fr; }
    .main-content { padding: 20px 16px; }
    .card { padding: 20px; }
}

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
}