/* =========================================================================
   Palomar Aerospace Portal — Core Styles
   Matched to PALAD design language:
   Dark sidebar, DM Sans typography, #035E31 green accents
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --black: #010101;
    --black-soft: #1A1A1A;
    --black-muted: #2D2D2D;
    --green: #035E31;
    --green-hover: #047A3F;
    --green-light: #E6F4ED;
    --green-faint: #F2FAF6;
    --white: #FFFFFF;
    --bg: #FAFBFC;
    --bg-sidebar: #111111;
    --bg-sidebar-hover: #1E1E1E;
    --bg-input: #F5F6F8;
    --text: #1A1A1A;
    --text-secondary: #555555;
    --text-muted: #888888;
    --text-light: #AAAAAA;
    --border: #E5E7EB;
    --border-light: #F0F1F3;
    --red: #C41E1E;
    --red-light: #FDF2F2;
    --amber: #B45309;
    --amber-light: #FFFBEB;
    --amber-border: #F59E0B;
    --blue: #1D4ED8;
    --blue-light: #EFF6FF;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --sidebar-width: 256px;
    --header-height: 52px;
    --radius: 8px;
    --radius-lg: 10px;
    --font: 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; font-family: var(--font); font-size: 14px; line-height: 1.55; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }

/* Layout */
.app-layout { display: flex; height: 100vh; overflow: hidden; }
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; background: var(--bg); }
.content-header { height: var(--header-height); background: var(--white); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 24px; flex-shrink: 0; }
.page-title { font-size: 13px; font-weight: 600; color: var(--black); }
.header-actions { display: flex; align-items: center; gap: 6px; }
.content-body { flex: 1; overflow-y: auto; padding: 24px; }

/* Sidebar — Dark theme matching PALAD */
.sidebar { width: var(--sidebar-width); background: var(--bg-sidebar); display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar--collapsed { width: 64px; }
.sidebar__header { padding: 20px 18px 16px; border-bottom: 1px solid rgba(255,255,255,0.07); display: flex; align-items: center; gap: 11px; }
.sidebar__brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.sidebar__logo { width: 34px; height: 34px; flex-shrink: 0; }
.sidebar__logo svg { width: 100%; height: 100%; }
.sidebar__brand-text { display: flex; flex-direction: column; }
.brand-name { color: #fff; font-size: 17px; font-weight: 700; letter-spacing: 4px; }
.brand-sub { color: rgba(255,255,255,0.28); font-size: 9.5px; letter-spacing: 0.8px; font-weight: 500; }
.sidebar__toggle { margin-left: auto; background: none; border: none; color: rgba(255,255,255,0.3); cursor: pointer; padding: 4px; border-radius: 4px; display: flex; align-items: center; justify-content: center; }
.sidebar__toggle:hover { color: rgba(255,255,255,0.6); background: var(--bg-sidebar-hover); }

.sidebar__nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.nav-item { display: flex; align-items: center; gap: 9px; padding: 8px 10px; margin: 0 10px; border-radius: 6px; color: rgba(255,255,255,0.45); text-decoration: none; font-size: 13px; font-weight: 400; cursor: pointer; transition: all 0.12s; white-space: nowrap; }
.nav-item:hover { background: var(--bg-sidebar-hover); color: rgba(255,255,255,0.75); }
.nav-item.active { background: var(--green); color: #fff; font-weight: 500; }
.nav-item svg { opacity: 0.5; flex-shrink: 0; }
.nav-item.active svg { opacity: 1; }
.nav-divider { height: 1px; background: rgba(255,255,255,0.07); margin: 6px 18px; }
.nav-label { display: block; padding: 14px 10px 5px 20px; font-size: 9.5px; font-weight: 600; color: rgba(255,255,255,0.22); text-transform: uppercase; letter-spacing: 1.5px; user-select: none; }

.sidebar__footer { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.07); }
.user-info { display: flex; align-items: center; gap: 10px; }
.user-avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--green); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.user-details { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.user-name { color: rgba(255,255,255,0.8); font-size: 12px; font-weight: 600; }
.user-role { color: rgba(255,255,255,0.3); font-size: 10px; }
.nav-item--logout { color: rgba(255,255,255,0.3); font-size: 12px; margin: 8px 10px 0; padding: 6px 10px; }
.nav-item--logout:hover { color: var(--red); background: rgba(196,30,30,0.1); }

/* Cards */
.card { background: var(--white); border-radius: var(--radius-lg); padding: 22px; border: 1px solid var(--border); margin-bottom: 16px; }
.card__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.card__title { font-size: 13px; font-weight: 700; color: var(--black); text-transform: uppercase; letter-spacing: 0.5px; }
.card__subtitle { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 6px; font-family: var(--font); font-size: 12px; font-weight: 600; border: 1.5px solid var(--border); background: var(--white); color: var(--text); cursor: pointer; transition: all 0.15s; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--green); color: var(--green); }
.btn--primary { background: var(--green); color: #fff; border-color: var(--green); }
.btn--primary:hover { background: var(--green-hover); border-color: var(--green-hover); }
.btn--secondary { background: var(--white); color: var(--text); border-color: var(--border); }
.btn--secondary:hover { border-color: var(--green); color: var(--green); }
.btn--danger { background: var(--white); color: var(--red); border-color: var(--red); }
.btn--danger:hover { background: var(--red-light); }
.btn--sm { padding: 4px 10px; font-size: 11px; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 6px; }
.form-input, .form-select, .form-textarea { width: 100%; padding: 11px 14px; border: 1.5px solid var(--border); border-radius: 6px; font-family: var(--font); font-size: 14px; background: var(--bg); color: var(--text); transition: all 0.2s; }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(3,94,49,0.08); }
.form-textarea { resize: vertical; min-height: 80px; }

/* Tables */
.table-container { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th { padding: 8px 14px; text-align: left; font-size: 10px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--border); white-space: nowrap; }
.table td { padding: 10px 14px; font-size: 13px; border-bottom: 1px solid var(--border-light); color: var(--text-secondary); }
.table tr:hover td { background: var(--green-faint); }

/* Status Badges */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.badge--draft { background: #F3F4F6; color: var(--text-muted); }
.badge--submitted { background: var(--blue-light); color: var(--blue); }
.badge--approved, .badge--paid { background: var(--green-light); color: var(--green); }
.badge--rejected, .badge--overdue { background: var(--red-light); color: var(--red); }
.badge--sent { background: var(--blue-light); color: var(--blue); }
.badge--partial { background: var(--amber-light); color: var(--amber); }

/* Dashboard Grid */
.dashboard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px; }
.metric-card { background: var(--white); border-radius: var(--radius); padding: 18px 20px; border: 1px solid var(--border); }
.metric-card__label { font-size: 11px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.metric-card__value { font-size: 28px; font-weight: 700; color: var(--black); margin: 4px 0 2px; }
.metric-card__change { font-size: 11px; color: var(--text-light); }
.metric-card__change--up { color: var(--green); }
.metric-card__change--down { color: var(--red); }

/* Alert Banner */
.alert { padding: 12px 18px; border-radius: var(--radius); font-size: 13px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.alert--warning { background: var(--amber-light); border: 1px solid var(--amber-border); color: var(--amber); }
.alert--danger { background: var(--red-light); border: 1px solid var(--red); color: var(--red); }
.alert--success { background: var(--green-light); border: 1px solid var(--green); color: var(--green); }

/* Empty State */
.empty-state { text-align: center; padding: 40px; color: var(--text-muted); }
.empty-state__icon { width: 48px; height: 48px; margin: 0 auto 12px; color: var(--text-light); }
.empty-state__title { font-size: 14px; font-weight: 600; color: var(--text-secondary); margin-bottom: 4px; }
.empty-state__text { font-size: 13px; margin-bottom: 16px; }

/* Responsive */
@media (max-width: 1024px) { .dashboard-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .dashboard-grid { grid-template-columns: 1fr; } .sidebar { display: none; } }