/* ===== CSS Variables ===== */
:root {
    --sidebar-bg-from: #0a0a0a;
    --sidebar-bg-to: #141414;
    --sidebar-text: #e2e8f0;
    --sidebar-active-bg: rgba(255, 255, 255, 0.1);
    --sidebar-hover-bg: rgba(255, 255, 255, 0.06);

    --content-bg: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;

    /* Brand: arancione + nero */
    --primary: #f97316;
    --primary-hover: #ea580c;
    --primary-light: #fff7ed;

    --success: #10b981;
    --success-bg: #d1fae5;
    --success-text: #065f46;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --warning-text: #92400e;
    --danger: #ef4444;
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    --info: #0891b2;
    --info-bg: #e0f2fe;
    --info-text: #0369a1;

    --text-xs: 0.8125rem;
    --text-sm: 0.9375rem;
    --text-base: 1.0625rem;
    --text-lg: 1.25rem;
    --text-xl: 1.5rem;
    --text-2xl: 1.875rem;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: var(--text-base);
    color: #1e293b;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app { height: 100%; }

h1 { font-size: var(--text-2xl); font-weight: 700; margin: 0; }
h2 { font-size: var(--text-xl); font-weight: 600; margin: 0; }
h3 { font-size: var(--text-lg); font-weight: 600; margin: 0; }
h1:focus { outline: none; }

a { color: var(--primary); }

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.page-subtitle {
    font-size: var(--text-sm);
    color: #64748b;
    margin-top: 0.2rem;
}

/* ===== Cards ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.card-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: var(--text-sm);
    color: #64748b;
}

/* ===== KPI Grid ===== */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.kpi-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.kpi-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    margin-bottom: 0.5rem;
}

.kpi-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: #1e293b;
    line-height: 1;
}

.kpi-sub {
    font-size: var(--text-xs);
    color: #94a3b8;
    margin-top: 0.25rem;
}

.kpi-success .kpi-value { color: var(--success); }
.kpi-danger .kpi-value { color: var(--danger); }
.kpi-info .kpi-value { color: var(--info); }
.kpi-primary .kpi-value { color: var(--primary); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.25rem;
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
    line-height: 1.5;
    text-decoration: none;
    white-space: nowrap;
}

.btn svg { width: 15px; height: 15px; }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
    text-decoration: none;
}

.btn-secondary {
    background: var(--surface);
    border-color: var(--border);
    color: #374151;
}
.btn-secondary:hover:not(:disabled) {
    background: #f8fafc;
    border-color: #cbd5e1;
    color: #1e293b;
}

.btn-danger {
    background: var(--danger-bg);
    border-color: #fca5a5;
    color: var(--danger-text);
}
.btn-danger:hover:not(:disabled) { background: #fecaca; }

.btn-sm { padding: 0.3rem 0.75rem; font-size: var(--text-xs); }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 600;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-danger { background: var(--danger-bg); color: var(--danger-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-info { background: var(--info-bg); color: var(--info-text); }
.badge-default { background: #f1f5f9; color: #475569; }
.badge-primary { background: var(--primary-light); color: var(--primary); }

/* Build status badges */
.badge-succeeded { background: var(--success-bg); color: var(--success-text); }
.badge-failed { background: var(--danger-bg); color: var(--danger-text); }
.badge-inprogress { background: var(--info-bg); color: var(--info-text); }
.badge-queued { background: #fef3c7; color: #92400e; }
.badge-cancelled { background: #f1f5f9; color: #475569; }
.badge-partiallysuccesseded { background: var(--warning-bg); color: var(--warning-text); }
.badge-unknown { background: #f1f5f9; color: #94a3b8; }

/* Provider badges */
.badge-azure { background: #e0f2fe; color: #0369a1; }
.badge-github { background: #f3f4f6; color: #111827; }

/* ===== Tables ===== */
.table-container {
    overflow-x: auto;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.table {
    width: 100%;
    font-size: var(--text-sm);
    border-collapse: collapse;
    background: var(--surface);
}

.table th {
    font-weight: 600;
    color: #374151;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 2px solid var(--border);
    background: #f8fafc;
    white-space: nowrap;
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: #1e293b;
    vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }

.table tbody tr { transition: background 0.1s; }
.table tbody tr:hover { background: #f8fafc; }

/* ===== Forms ===== */
.form-group { margin-bottom: 1rem; }

label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: #374151;
    display: block;
    margin-bottom: 0.375rem;
}

.form-control, .form-select {
    display: block;
    width: 100%;
    padding: 0.5rem 0.875rem;
    font-size: var(--text-sm);
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: #1e293b;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
}

.form-control::placeholder { color: #94a3b8; }

/* ===== States ===== */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
    color: #64748b;
    font-size: var(--text-sm);
}

.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid rgba(79,70,229,0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: #94a3b8;
}

.empty-state-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }

.empty-state-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: #475569;
    margin-bottom: 0.5rem;
}

.empty-state-subtitle {
    font-size: var(--text-sm);
    color: #94a3b8;
}

/* ===== Alert ===== */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: var(--text-sm);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.alert-danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid #fca5a5; }
.alert-success { background: var(--success-bg); color: var(--success-text); border: 1px solid #6ee7b7; }
.alert-info { background: var(--info-bg); color: var(--info-text); border: 1px solid #67e8f9; }

/* ===== Utility ===== */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.text-muted { color: #64748b; font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); color: #94a3b8; }
.font-mono { font-family: 'Consolas', 'Courier New', monospace; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Login page ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0a;
    padding: 1rem;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    border-top: 4px solid var(--primary);
}

.login-logo {
    font-size: var(--text-xl);
    font-weight: 800;
    color: #111827;
    margin-bottom: 1.5rem;
}

.login-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: var(--text-sm);
    color: #64748b;
    margin-bottom: 2rem;
}

.code-input {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.5rem;
    text-align: center;
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    width: 100%;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.code-input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
}

/* ===== Build timeline ===== */
.build-timeline {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.build-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: box-shadow 0.15s;
    text-decoration: none;
    color: inherit;
}

.build-row:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    text-decoration: none;
    color: inherit;
}

.build-status-icon { font-size: 1.1rem; flex-shrink: 0; }

.build-info { flex: 1; min-width: 0; }

.build-number {
    font-size: var(--text-sm);
    font-weight: 600;
    color: #1e293b;
}

.build-meta {
    font-size: var(--text-xs);
    color: #64748b;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 2px;
}

.build-branch {
    background: #f1f5f9;
    padding: 1px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 11px;
    color: #374151;
}

.build-time { font-size: var(--text-xs); color: #94a3b8; white-space: nowrap; }

/* ===== App card grid ===== */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.app-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    cursor: pointer;
    transition: box-shadow 0.15s, border-color 0.15s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.app-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-color: #cbd5e1;
    text-decoration: none;
    color: inherit;
}

.app-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.app-card-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: #1e293b;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-card-org {
    font-size: var(--text-xs);
    color: #64748b;
    margin-top: 2px;
}

.app-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.875rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.app-card-time {
    font-size: var(--text-xs);
    color: #94a3b8;
}

/* ===== Nav menu ===== */
.nav-menu {
    padding: 0.625rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    flex: 1;
    overflow-y: auto;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 7px;
    transition: background 0.15s, color 0.15s;
    cursor: pointer;
    width: 100%;
    line-height: 1.4;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    text-decoration: none;
}

.nav-btn.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ===== Responsive helpers ===== */

/* Costs page — 6-column KPI grid collapses on smaller screens */
.costs-kpi-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Home page — 2-column grid for recent builds + app overview */
.home-two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 1300px) {
    .costs-kpi-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .costs-kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .home-two-col-grid { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .apps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .costs-kpi-grid { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
}