/* ── Reset & Base ──────────────────────────────────────── */

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

:root {
    /* Arcline brand palette — dark theme */
    --clr-bg: #0a0a10;
    --clr-surface: #0f0f19;
    --clr-surface-raised: #161626;
    --clr-text: #e2e8f0;
    --clr-heading: #f1f5f9;
    --clr-muted: #7c8ba0;
    --clr-border: #1c2030;
    --clr-accent: #2dd4bf;
    --clr-accent-hover: #14b8a6;
    --clr-accent-dim: rgba(45, 212, 191, 0.10);
    --clr-accent-glow: rgba(45, 212, 191, 0.18);
    --clr-danger: #ef4444;
    --clr-danger-hover: #dc2626;
    --clr-danger-bg: rgba(239, 68, 68, 0.10);
    --clr-open: #2dd4bf;
    --clr-in-progress: #f59e0b;
    --clr-resolved: #22c55e;
    --clr-closed: #64748b;
    --clr-low: #22c55e;
    --clr-medium: #f59e0b;
    --clr-high: #f97316;
    --clr-critical: #ef4444;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.45);
    --shadow: 0 4px 24px rgba(0,0,0,.5);
    --shadow-lg: 0 8px 40px rgba(0,0,0,.6);
    --max-width: 960px;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--clr-bg);
    background-image:
        radial-gradient(circle at 50% 0%, rgba(45, 212, 191, 0.03) 0%, transparent 50%),
        linear-gradient(rgba(45, 212, 191, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(45, 212, 191, 0.015) 1px, transparent 1px);
    background-size: 100% 100%, 60px 60px, 60px 60px;
    color: var(--clr-text);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--clr-accent); text-decoration: none; transition: color 0.18s, opacity 0.18s; }
a:hover { color: var(--clr-accent-hover); text-decoration: none; }

/* ── Layout ────────────────────────────────────────────── */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

main.container {
    flex: 1;
    padding-top: 2.5rem;
    padding-bottom: 5rem;
}

/* ── Header ────────────────────────────────────────────── */

.site-header {
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    padding: 0.9rem 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--clr-heading);
    letter-spacing: -0.4px;
}
.logo .accent { color: var(--clr-accent); }
.logo:hover { color: var(--clr-heading); text-decoration: none; }
.logo:hover .accent { color: var(--clr-accent-hover); }
.site-header nav { display: flex; align-items: center; gap: 1rem; }
.site-header nav a {
    color: var(--clr-muted);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: -0.1px;
}
.site-header nav a:hover { color: var(--clr-text); }

/* ── Footer ────────────────────────────────────────────── */

.site-footer {
    background: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--clr-muted);
    margin-top: auto;
    letter-spacing: -0.1px;
}

/* ── Buttons ───────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s, color 0.18s, border-color 0.18s, box-shadow 0.18s, transform 0.12s;
    font-family: inherit;
    letter-spacing: -0.15px;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.985); }

.btn-primary {
    background: var(--clr-accent);
    color: #0a0a10;
    border-color: var(--clr-accent);
    font-weight: 600;
}
.btn-primary:hover {
    background: var(--clr-accent-hover);
    border-color: var(--clr-accent-hover);
    color: #0a0a10;
    box-shadow: 0 0 28px rgba(45, 212, 191, 0.3);
}

.btn-secondary {
    background: var(--clr-surface-raised);
    border-color: var(--clr-border);
    color: var(--clr-text);
}
.btn-secondary:hover {
    background: var(--clr-border);
    border-color: rgba(45, 212, 191, 0.25);
    box-shadow: 0 0 16px rgba(45, 212, 191, 0.06);
}

.btn-danger {
    background: var(--clr-danger);
    color: #fff;
    border-color: var(--clr-danger);
}
.btn-danger:hover {
    background: var(--clr-danger-hover);
    border-color: var(--clr-danger-hover);
    box-shadow: 0 0 28px rgba(239, 68, 68, 0.25);
}

.btn-ghost {
    background: transparent;
    color: var(--clr-muted);
    border-color: transparent;
}
.btn-ghost:hover {
    color: var(--clr-text);
    background: var(--clr-surface-raised);
    border-color: var(--clr-border);
}

.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

/* ── Inputs ────────────────────────────────────────────── */

.input {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--clr-surface);
    color: var(--clr-text);
    transition: border-color 0.18s, box-shadow 0.18s, background 0.18s;
    letter-spacing: -0.1px;
}
.input::placeholder { color: var(--clr-muted); opacity: 0.55; }
.input:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px var(--clr-accent-dim), 0 0 20px rgba(45, 212, 191, 0.08);
    background: var(--clr-surface-raised);
}
.search-input { max-width: 320px; }
.filter-select { max-width: 180px; }
textarea.input { resize: vertical; }
select.input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.25rem;
}
select.input option {
    background: var(--clr-surface-raised);
    color: var(--clr-text);
}

/* ── Forms ─────────────────────────────────────────────── */

.form-container {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    padding: 2.25rem;
    box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: 1.35rem; }
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.84rem;
    margin-bottom: 0.4rem;
    color: var(--clr-muted);
    letter-spacing: -0.1px;
}
.required { color: var(--clr-danger); }
.form-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; }
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.75rem;
    padding-top: 1.35rem;
    border-top: 1px solid var(--clr-border);
}

/* ── Alerts ────────────────────────────────────────────── */

.alert {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    letter-spacing: -0.1px;
}
.alert-error {
    background: rgba(245, 158, 11, 0.10);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: #fbbf24;
}

/* ── Page Header ───────────────────────────────────────── */

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 2rem;
    gap: 1rem;
}
.page-header h1 {
    font-size: 1.6rem;
    color: var(--clr-heading);
    font-weight: 800;
    letter-spacing: -0.5px;
}
.action-buttons { display: flex; gap: 0.5rem; align-items: center; }
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.82rem;
    color: var(--clr-muted);
    margin-bottom: 0.35rem;
    letter-spacing: -0.1px;
}
.back-link:hover { color: var(--clr-accent); }

/* ── Stats Bar ─────────────────────────────────────────── */

.stats-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.7rem 1.35rem;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    transition: background 0.18s, border-color 0.18s, box-shadow 0.18s;
    min-width: 82px;
}
.stat:hover {
    text-decoration: none;
    border-color: rgba(45, 212, 191, 0.35);
    background: var(--clr-surface-raised);
    box-shadow: 0 0 20px rgba(45, 212, 191, 0.06);
}
.stat.active {
    border-color: var(--clr-accent);
    background: var(--clr-accent-dim);
    box-shadow: 0 0 24px rgba(45, 212, 191, 0.10);
}
.stat-num {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--clr-heading);
    letter-spacing: -0.8px;
    font-variant-numeric: tabular-nums;
}
.stat.active .stat-num { color: var(--clr-accent); }
.stat-label {
    font-size: 0.7rem;
    color: var(--clr-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 600;
}

/* ── Filters ───────────────────────────────────────────── */

.filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

/* ── Ticket List ───────────────────────────────────────── */

.ticket-list { display: flex; flex-direction: column; gap: 0.75rem; }

.ticket-card {
    display: block;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.35rem;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s, transform 0.15s;
    color: var(--clr-text);
    box-shadow: var(--shadow-sm);
}
.ticket-card:hover {
    text-decoration: none;
    border-color: rgba(45, 212, 191, 0.4);
    box-shadow: 0 0 36px rgba(45, 212, 191, 0.12), var(--shadow);
    background: var(--clr-surface-raised);
    transform: translateY(-1px);
}
.ticket-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.55rem;
}
.ticket-id {
    font-size: 0.76rem;
    color: var(--clr-accent);
    font-weight: 600;
    font-family: "SF Mono", "Fira Code", "JetBrains Mono", "Cascadia Code", monospace;
    letter-spacing: 0.5px;
}
.ticket-card-title {
    font-size: 1.12rem;
    margin-bottom: 0.4rem;
    color: var(--clr-heading);
    font-weight: 700;
    letter-spacing: -0.3px;
}
.ticket-card-desc {
    font-size: 0.88rem;
    color: var(--clr-muted);
    margin-bottom: 0.85rem;
    line-height: 1.6;
}
.ticket-card-meta {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.78rem;
}
.assignee { color: var(--clr-muted); }
.date { color: var(--clr-muted); }

/* ── Badges ────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.22rem 0.65rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: capitalize;
    letter-spacing: -0.1px;
}

/* status badges */
.badge-open       { background: rgba(45, 212, 191, 0.14); color: var(--clr-open); }
.badge-in_progress { background: rgba(245, 158, 11, 0.14); color: var(--clr-in-progress); }
.badge-resolved   { background: rgba(34, 197,  94, 0.14); color: var(--clr-resolved); }
.badge-closed     { background: rgba(100, 116, 139, 0.14); color: var(--clr-closed); }

/* priority badges */
.badge-priority { text-transform: uppercase; letter-spacing: 0.6px; font-size: 0.66rem; }
.badge-p-low      { background: rgba(34, 197,  94, 0.14); color: var(--clr-low); }
.badge-p-medium   { background: rgba(245, 158, 11, 0.14); color: var(--clr-medium); }
.badge-p-high     { background: rgba(249, 115, 22, 0.14); color: var(--clr-high); }
.badge-p-critical { background: rgba(239, 68,  68, 0.14); color: var(--clr-critical); }

/* project badge */
.badge-project { background: rgba(99, 102, 241, 0.14); color: #a5b4fc; }

/* ── Ticket Detail ─────────────────────────────────────── */

.ticket-detail-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 1.5rem;
    align-items: start;
}

.ticket-main {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.ticket-section { padding: 1.65rem; }
.ticket-section + .ticket-section {
    border-top: 1px solid var(--clr-border);
}
.ticket-section h3 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--clr-muted);
    margin-bottom: 0.85rem;
    font-weight: 700;
}

.ticket-description {
    line-height: 1.85;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--clr-text);
    font-size: 0.95rem;
}

/* ── Sidebar ───────────────────────────────────────────── */

.ticket-sidebar {
    position: sticky;
    top: 1.5rem;
}

.ticket-meta-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    padding: 1.35rem;
    box-shadow: var(--shadow-sm);
}

.meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0;
    font-size: 0.88rem;
}

.meta-label {
    font-weight: 600;
    color: var(--clr-muted);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

hr {
    border: none;
    border-top: 1px solid var(--clr-border);
    margin: 0.55rem 0;
}

/* ── Empty State ───────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 5rem 1rem;
    color: var(--clr-muted);
}
.empty-state p {
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
    color: var(--clr-muted);
    letter-spacing: -0.2px;
}

/* ── Utility ───────────────────────────────────────────── */

.muted { color: var(--clr-muted); }

/* ── Responsive ────────────────────────────────────────── */

@media (max-width: 768px) {
    .ticket-detail-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; }
    .stats-bar { justify-content: center; }
}