/* ============================================================
   OrbitPulse — Design System
   Single source of truth for all styles.
   Theme is driven by [data-theme="dark"] / [data-theme="light"]
   on <html>. JS in base.html reads/writes localStorage.
   ============================================================ */

/* ------------------------------------------------------------
   1. Theme tokens
   ------------------------------------------------------------ */

[data-theme="dark"] {
    --op-bg:           #07090f;
    --op-bg-sidebar:   #0a0d16;
    --op-bg-surface:   #111827;
    --op-bg-raised:    #1a2235;
    --op-bg-input:     #0f1624;

    --op-border:       rgba(180, 160, 130, 0.12);
    --op-border-focus: var(--op-teal);

    --op-text:         #e8dcc8;
    --op-text-muted:   #a89880;
    --op-text-subtle:  #6b7280;

    --op-teal:         #2dd4bf;
    --op-teal-dim:     rgba(45, 212, 191, 0.12);
    --op-blue:         #3b82f6;
    --op-blue-dim:     rgba(59, 130, 246, 0.12);

    --op-success:      #34d399;
    --op-danger:       #f87171;
    --op-warning:      #fbbf24;

    --op-shadow:       0 1px 3px rgba(0, 0, 0, 0.5);
    --op-shadow-hover: 0 4px 14px rgba(0, 0, 0, 0.6);

    color-scheme: dark;
}

[data-theme="light"] {
    --op-bg:           #f5f0e8;
    --op-bg-sidebar:   #ffffff;
    --op-bg-surface:   #ffffff;
    --op-bg-raised:    #ede8de;
    --op-bg-input:     #faf7f2;

    --op-border:       rgba(120, 100, 75, 0.15);
    --op-border-focus: #0d9488;

    --op-text:         #1c1510;
    --op-text-muted:   #6b5c47;
    --op-text-subtle:  #9e8e7a;

    --op-teal:         #0d9488;
    --op-teal-dim:     rgba(13, 148, 136, 0.1);
    --op-blue:         #2563eb;
    --op-blue-dim:     rgba(37, 99, 235, 0.1);

    --op-success:      #059669;
    --op-danger:       #dc2626;
    --op-warning:      #d97706;

    --op-shadow:       0 1px 3px rgba(0, 0, 0, 0.08);
    --op-shadow-hover: 0 4px 14px rgba(0, 0, 0, 0.12);

    color-scheme: light;
}

/* ------------------------------------------------------------
   2. Base
   ------------------------------------------------------------ */

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

html {
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--op-bg);
    color: var(--op-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.2s ease, color 0.2s ease;
}

h1, h2, h3, .display-3 {
    font-family: 'DM Serif Display', serif;
}

a {
    color: var(--op-teal);
    text-decoration: none;
}
a:hover {
    color: var(--op-teal);
    opacity: 0.8;
}

/* ------------------------------------------------------------
   3. Layout
   ------------------------------------------------------------ */

.sidebar {
    min-height: 100vh;
    width: 250px;
    background-color: var(--op-bg-sidebar);
    border-right: 1px solid var(--op-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: background-color 0.2s ease;
}

.main-content {
    flex: 1;
    padding: 2rem;
    background-color: var(--op-bg);
    min-height: 100vh;
    transition: background-color 0.2s ease;
}

/* ------------------------------------------------------------
   4. Sidebar internals
   ------------------------------------------------------------ */

.navbar-brand {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    padding: 1.25rem;
    display: block;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.sidebar hr {
    border-color: var(--op-border);
    opacity: 1;
}

.sidebar .nav-link {
    color: var(--op-text-muted);
    padding: 0.7rem 1.25rem;
    border-radius: 0.5rem;
    margin: 0.15rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.15s ease, color 0.15s ease;
    border: 1px solid transparent;
}
.sidebar .nav-link:hover {
    background-color: var(--op-bg-raised);
    color: var(--op-text);
}
.sidebar .nav-link.active {
    background: linear-gradient(135deg, var(--op-teal-dim), var(--op-blue-dim));
    color: var(--op-teal);
    border-color: rgba(45, 212, 191, 0.18);
}
.sidebar .nav-link.active i {
    color: var(--op-teal);
}

/* Logout button styled as nav link */
.sidebar form .nav-link {
    width: calc(100% - 1.5rem);
    background: none;
    cursor: pointer;
    text-align: left;
}

.sidebar-user {
    background: var(--op-bg-raised);
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin: 0.75rem;
    text-align: center;
    transition: background-color 0.2s ease;
}
.sidebar-user .label {
    font-size: 0.75rem;
    color: var(--op-text-muted);
}
.sidebar-user .username {
    font-weight: 600;
    color: var(--op-text);
    font-size: 0.875rem;
}

/* Theme toggle button */
.theme-toggle {
    background: none;
    border: 1px solid var(--op-border);
    border-radius: 0.5rem;
    color: var(--op-text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
    margin: 0 0.75rem 0.75rem;
    width: calc(100% - 1.5rem);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}
.theme-toggle:hover {
    background: var(--op-bg-raised);
    color: var(--op-text);
    border-color: var(--op-text-subtle);
}

/* ------------------------------------------------------------
   5. Cards
   ------------------------------------------------------------ */

.card {
    background-color: var(--op-bg-surface);
    border: 1px solid var(--op-border);
    border-radius: 0.75rem;
    box-shadow: var(--op-shadow);
    color: var(--op-text);
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-metric {
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card-metric:hover {
    transform: translateY(-2px);
    border-color: rgba(45, 212, 191, 0.2);
    box-shadow: var(--op-shadow-hover);
}

/* ------------------------------------------------------------
   6. Tables
   ------------------------------------------------------------ */

.table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(148, 163, 184, 0.06);
    --bs-table-hover-color: var(--op-text);
    --bs-table-striped-bg: transparent;
    --bs-table-border-color: var(--op-border);
    color: var(--op-text);
}
.table thead th {
    border-bottom-color: var(--op-border);
    color: var(--op-text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.table-hover > tbody > tr {
    transition: background-color 0.15s ease;
}
.table-light {
    --bs-table-bg: var(--op-bg-raised);
    --bs-table-color: var(--op-text-muted);
    --bs-table-border-color: var(--op-border);
}

/* ------------------------------------------------------------
   7. Forms
   ------------------------------------------------------------ */

.form-control,
.form-select {
    background-color: var(--op-bg-input);
    border-color: var(--op-border);
    color: var(--op-text);
    transition: background-color 0.2s ease, border-color 0.15s ease;
}
.form-control:focus,
.form-select:focus {
    background-color: var(--op-bg-input);
    border-color: var(--op-border-focus);
    color: var(--op-text);
    box-shadow: 0 0 0 0.2rem var(--op-teal-dim);
}
.form-control::placeholder {
    color: var(--op-text-subtle);
}
.form-control:disabled,
.form-control[disabled] {
    background-color: var(--op-bg-raised);
    border-color: var(--op-border);
    color: var(--op-text-muted);
    opacity: 0.45;
    cursor: not-allowed;
}
.form-label {
    color: var(--op-text-muted);
    font-weight: 500;
    font-size: 0.875rem;
}

/* ------------------------------------------------------------
   8. Buttons
   ------------------------------------------------------------ */

.btn-primary {
    background: linear-gradient(135deg, var(--op-teal), #0f9688);
    border: none;
    color: #fff;
    font-weight: 600;
}
.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, #3ae0ca, var(--op-teal));
    color: #fff;
    border: none;
}
.btn-outline-secondary {
    border-color: var(--op-border);
    color: var(--op-text-muted);
    background: transparent;
}
.btn-outline-secondary:hover {
    background-color: var(--op-bg-raised);
    border-color: var(--op-text-subtle);
    color: var(--op-text);
}

/* Active preset button in filter bar */
.filter-bar .btn-check:checked + .btn {
    background: linear-gradient(135deg, var(--op-teal), #0f9688);
    color: #fff;
    border-color: var(--op-teal);
    font-weight: 600;
}

/* ------------------------------------------------------------
   9. Badges & status indicators
   ------------------------------------------------------------ */

.pct-badge { font-size: 0.72rem; }

.bg-success { background-color: var(--op-success) !important; color: #fff !important; }
.bg-danger  { background-color: var(--op-danger)  !important; color: #fff !important; }
.bg-secondary {
    background-color: var(--op-bg-raised) !important;
    color: var(--op-text-muted) !important;
}
.bg-light {
    background-color: var(--op-bg-raised) !important;
    color: var(--op-text-muted) !important;
}

/* ------------------------------------------------------------
   10. Progress bars
   ------------------------------------------------------------ */

.progress {
    background-color: var(--op-bg-raised);
    border-radius: 1rem;
}
.progress-bar {
    background: linear-gradient(90deg, var(--op-teal), var(--op-blue));
    border-radius: 1rem;
}

/* ------------------------------------------------------------
   11. Alerts
   ------------------------------------------------------------ */

.alert-warning {
    background-color: rgba(251, 191, 36, 0.08);
    border-color: rgba(251, 191, 36, 0.2);
    color: var(--op-warning);
}
.btn-close {
    filter: var(--op-close-filter, none);
}
[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(1) brightness(1.5);
}

/* ------------------------------------------------------------
   12. Text & utility overrides
   ------------------------------------------------------------ */

.text-muted   { color: var(--op-text-muted)  !important; }
.text-primary { color: var(--op-teal)         !important; }
.text-success { color: var(--op-success)      !important; }
.text-info    { color: var(--op-blue)         !important; }
.text-warning { color: var(--op-warning)      !important; }
.text-danger  { color: var(--op-danger)       !important; }
.text-dark    { color: var(--op-text)         !important; }
.fw-bold      { color: var(--op-text); }

.border-bottom { border-color: var(--op-border) !important; }
.border        { border-color: var(--op-border) !important; }

/* ------------------------------------------------------------
   13. Stat icon (dashboard cards)
   ------------------------------------------------------------ */

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ------------------------------------------------------------
   14. Draggable card grid
   ------------------------------------------------------------ */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card-slot {
    min-width: 0; /* prevent grid blowout */
    will-change: transform;
}

.card-slot .card {
    height: 100%;
}

.drag-handle {
    display: block;
    text-align: center;
    color: var(--op-text-subtle);
    cursor: grab;
    opacity: 0;
    transition: opacity 0.15s ease;
    font-size: 1rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}
.card-slot:hover .drag-handle {
    opacity: 1;
}
.drag-handle:active {
    cursor: grabbing;
}

/* Card being dragged */
.card-slot.dragging {
    opacity: 0.35;
}

