/* ============================================================
   NIRA Foundation — Volunteer (Mod) Panel Stylesheet
   Standalone design system — no public site CSS dependency
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ── CSS Variables ──────────────────────────────────────── */
:root {
    --bg-body: #0c1222;
    --bg-sidebar: #0f1729;
    --bg-card: #141d30;
    --bg-card-hover: #192440;
    --bg-input: #0c1222;
    --bg-subtle: rgba(255,255,255,0.04);
    --border: #1e2d4a;
    --border-light: #253553;
    --fg: #e1e8f5;
    --fg-muted: #7a8bab;
    --fg-dim: #4a5a7a;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-glow: rgba(59,130,246,0.15);
    --accent: #06d6a0;
    --accent-glow: rgba(6,214,160,0.12);
    --danger: #ef4444;
    --danger-glow: rgba(239,68,68,0.12);
    --warning: #f59e0b;
    --warning-glow: rgba(245,158,11,0.12);
    --success: #22c55e;
    --success-glow: rgba(34,197,94,0.12);
    --purple: #8b5cf6;
    --purple-glow: rgba(139,92,246,0.12);
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xl: 16px;
    --shadow: 0 4px 24px rgba(0,0,0,0.25);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-size: 15px; }

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-body);
    color: var(--fg);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }

img { max-width: 100%; display: block; }

/* ── Layout Shell ──────────────────────────────────────── */
.mod-layout {
    display: flex;
    min-height: 100vh;
}

.mod-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform var(--transition);
}

.mod-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.mod-header {
    height: var(--header-height);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.75rem;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
}

.mod-content {
    flex: 1;
    padding: 1.75rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.mod-footer {
    padding: 1.25rem 1.75rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.78rem;
    color: var(--fg-dim);
}

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar-brand {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-brand-text h2 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--fg);
    line-height: 1.2;
}

.sidebar-brand-text span {
    font-size: 0.7rem;
    color: var(--fg-muted);
}

.sidebar-nav {
    padding: 1rem 0;
    flex: 1;
}

.sidebar-label {
    padding: 0.5rem 1.5rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--fg-dim);
    font-weight: 700;
    margin-top: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.5rem;
    color: var(--fg-muted);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition);
    border-left: 3px solid transparent;
    position: relative;
}

.sidebar-link:hover {
    background: var(--bg-subtle);
    color: var(--fg);
}

.sidebar-link.active {
    background: var(--primary-glow);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.sidebar-link .link-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.sidebar-link .link-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.sidebar-user {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.sidebar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    overflow: hidden;
}

.sidebar-user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fg);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 0.7rem;
    color: var(--fg-muted);
}

/* ── Header ────────────────────────────────────────────── */
.header-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--fg);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.header-btn {
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--fg-muted);
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.header-btn:hover { background: var(--bg-card-hover); color: var(--fg); }

/* ── Page Header ───────────────────────────────────────── */
.page-header {
    margin-bottom: 1.75rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--fg);
    margin-bottom: 0.25rem;
}

.page-header p {
    font-size: 0.88rem;
    color: var(--fg-muted);
}

/* ── Cards ─────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: border-color var(--transition);
}

.card:hover { border-color: var(--border-light); }

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--fg);
}

.card-body { padding: 1.5rem; }
.card-body-flush { padding: 0; }

/* ── Stat Cards ────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
    gap: 0.85rem;
    margin-bottom: 1.75rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius) var(--radius) 0 0;
}

.stat-card:hover { transform: translateY(-2px); border-color: var(--border-light); }

.stat-card.stat-primary::before { background: var(--primary); }
.stat-card.stat-warning::before { background: var(--warning); }
.stat-card.stat-purple::before { background: var(--purple); }
.stat-card.stat-success::before { background: var(--success); }
.stat-card.stat-danger::before { background: var(--danger); }

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.35rem;
}

.stat-primary .stat-value { color: var(--primary); }
.stat-warning .stat-value { color: var(--warning); }
.stat-purple .stat-value { color: var(--purple); }
.stat-success .stat-value { color: var(--success); }
.stat-danger .stat-value { color: var(--danger); }

.stat-label {
    font-size: 0.75rem;
    color: var(--fg-muted);
    font-weight: 500;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    font-family: inherit;
    line-height: 1;
    white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; box-shadow: 0 4px 16px rgba(59,130,246,0.3); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; color: #fff; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover { background: #d97706; }

.btn-ghost {
    background: transparent;
    color: var(--fg-muted);
    border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-subtle); color: var(--fg); }

.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }
.btn-lg { padding: 0.75rem 1.75rem; font-size: 1rem; }
.btn-block { width: 100%; }

/* ── Badges ────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
}

.badge-primary { background: var(--primary-glow); color: var(--primary); }
.badge-success { background: var(--success-glow); color: var(--success); }
.badge-danger { background: var(--danger-glow); color: var(--danger); }
.badge-warning { background: var(--warning-glow); color: var(--warning); }
.badge-purple { background: var(--purple-glow); color: var(--purple); }
.badge-muted { background: var(--bg-subtle); color: var(--fg-muted); }

/* ── Forms ─────────────────────────────────────────────── */
.form-group { margin-bottom: 0.85rem; }

.form-label {
    display: block;
    font-size: 0.78rem;
    color: var(--fg-muted);
    margin-bottom: 0.3rem;
    font-weight: 600;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.6rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--fg);
    font-size: 0.88rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--fg-dim);
}

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

/* ── Tables ────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

.mod-table {
    width: 100%;
    border-collapse: collapse;
}

.mod-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--fg-dim);
    font-weight: 700;
    border-bottom: 1px solid var(--border);
    background: var(--bg-subtle);
}

.mod-table td {
    padding: 0.75rem 1rem;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border);
    color: var(--fg-muted);
    vertical-align: middle;
}

.mod-table tr:hover td { background: var(--bg-subtle); }
.mod-table tr:last-child td { border-bottom: none; }

/* ── Chat ──────────────────────────────────────────────── */
.chat-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 0;
    height: calc(100vh - var(--header-height) - 100px);
    min-height: 500px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-card);
}

.chat-sidebar {
    border-right: 1px solid var(--border);
    overflow-y: auto;
    background: var(--bg-sidebar);
}

.chat-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background var(--transition);
    color: var(--fg-muted);
}

.chat-sidebar-item:hover { background: var(--bg-subtle); color: var(--fg); }
.chat-sidebar-item.active { background: var(--primary-glow); color: var(--primary); }

.chat-sidebar-label {
    padding: 0.5rem 1rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--fg-dim);
    font-weight: 700;
    border-bottom: 1px solid var(--border);
    background: var(--bg-subtle);
}

.chat-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.chat-avatar-blue { background: linear-gradient(135deg, var(--primary), #60a5fa); }
.chat-avatar-red { background: linear-gradient(135deg, var(--danger), #f87171); }
.chat-avatar-green { background: linear-gradient(135deg, var(--success), var(--accent)); }

.online-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    border: 2px solid var(--bg-sidebar);
    position: absolute;
    bottom: 0;
    right: 0;
}

.chat-area {
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--fg);
    background: var(--bg-card);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.chat-bubble {
    max-width: 72%;
    padding: 0.7rem 1rem;
    border-radius: 14px;
    font-size: 0.88rem;
    line-height: 1.55;
    word-break: break-word;
    animation: bubbleIn 0.25s ease;
}

@keyframes bubbleIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-bubble-mine {
    background: var(--primary);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.chat-bubble-admin {
    background: var(--danger-glow);
    border: 1px solid rgba(239,68,68,0.25);
    color: var(--fg);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-bubble-other {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    color: var(--fg);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-bubble-meta {
    font-size: 0.7rem;
    margin-bottom: 0.15rem;
}

.chat-input-bar {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
    background: var(--bg-card);
}

.chat-input-bar input {
    flex: 1;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--bg-input);
    color: var(--fg);
    font-size: 0.88rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}

.chat-input-bar input:focus { border-color: var(--primary); }

.chat-input-bar button {
    padding: 0.6rem 1.25rem;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 24px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    font-family: inherit;
    transition: background var(--transition);
}

.chat-input-bar button:hover { background: var(--primary-hover); }

/* ── Assignment Cards ──────────────────────────────────── */
.assignment-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    transition: all var(--transition);
    color: var(--fg);
    text-decoration: none;
    margin-bottom: 0.65rem;
}

.assignment-card:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(59,130,246,0.08);
    color: var(--fg);
}

.assignment-meta {
    display: flex;
    gap: 1.25rem;
    font-size: 0.78rem;
    color: var(--fg-dim);
    margin-top: 0.6rem;
}

/* ── Report Submission Block ───────────────────────────── */
.report-block {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.15rem;
    margin-bottom: 0.65rem;
}

.report-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.report-feedback {
    margin-top: 0.65rem;
    padding: 0.75rem;
    background: var(--danger-glow);
    border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--radius-sm);
}

/* ── Empty State ───────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--fg-muted);
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.05rem;
    color: var(--fg);
    margin-bottom: 0.35rem;
}

.empty-state p {
    font-size: 0.88rem;
    color: var(--fg-muted);
}

/* ── Alerts ────────────────────────────────────────────── */
.alert {
    padding: 0.75rem 1.15rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-success { background: var(--success-glow); border: 1px solid rgba(34,197,94,0.25); color: var(--success); }
.alert-danger { background: var(--danger-glow); border: 1px solid rgba(239,68,68,0.25); color: var(--danger); }
.alert-warning { background: var(--warning-glow); border: 1px solid rgba(245,158,11,0.25); color: var(--warning); }

/* ── Auth Pages (Login/Register) ───────────────────────── */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: var(--bg-body);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6,214,160,0.06) 0%, transparent 50%);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow);
}

.auth-card h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--fg);
    text-align: center;
    margin-bottom: 0.25rem;
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--fg-muted);
    font-size: 0.88rem;
    margin-bottom: 1.75rem;
}

.auth-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.5rem;
}

/* ── Filter Tabs ───────────────────────────────────────── */
.filter-tabs {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--fg-muted);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.filter-tab:hover { background: var(--bg-subtle); color: var(--fg); }
.filter-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Two Column Grid ───────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1.5fr 1fr; gap: 1.25rem; }
.grid-2-equal { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ── Mobile Responsive ─────────────────────────────────── */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--fg);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.25rem;
}

@media (max-width: 768px) {
    .mod-sidebar {
        transform: translateX(-100%);
        z-index: 200;
    }
    .mod-sidebar.open { transform: translateX(0); }
    .mod-main { margin-left: 0; }
    .mobile-toggle { display: block; }
    .grid-2, .grid-2-equal { grid-template-columns: 1fr; }
    .chat-layout { grid-template-columns: 1fr; height: calc(100vh - 140px); }
    .chat-sidebar { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.6);
        z-index: 150;
    }
    .sidebar-overlay.open { display: block; }
}

/* ── Animations ────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeInUp 0.4s ease both;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }