:root {
    --marina: #243E4B;
    --silk: #FFE26D;
    --sky: #6EABC7;
    --sky-soft: #EAF5FA;
    --marina-soft: #EAF0F3;
    --surface: #FFFFFF;
    --bg: #F6FAFC;
    --border: #D7E4EA;
    --text: #243E4B;
    --muted: #6B7D86;
}

body {
    background: var(--bg);
    color: var(--text);
}

a { color: var(--marina); }
a:hover { color: #162D38; }

.navbar {
    background: var(--surface) !important;
    border-bottom: 1px solid var(--border) !important;
}

.navbar-brand {
    color: var(--marina);
}

.brand-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    display: block;
}

.brand-logo-lg {
    width: 92px;
    height: 92px;
    object-fit: contain;
}

.profile-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--marina-soft);
    color: var(--marina);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    overflow: hidden;
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(36, 62, 75, .12);
}

.profile-avatar-lg {
    width: 96px;
    height: 96px;
    font-size: 1.7rem;
}

.login-page {
    background:
        radial-gradient(circle at top right, rgba(110, 171, 199, .28), transparent 34%),
        radial-gradient(circle at bottom left, rgba(255, 226, 109, .30), transparent 30%),
        var(--bg);
}

.login-card {
    border: 1px solid rgba(36, 62, 75, .08) !important;
    border-radius: 20px;
}

.demo-box {
    background: #FFFDF2;
    border: 1px solid rgba(255, 226, 109, .8);
    border-radius: 12px;
    padding: 12px 14px;
}

.app-layout {
    display: flex;
    min-height: calc(100vh - 65px);
}

.sidebar {
    width: 245px;
    flex: 0 0 245px;
    background: var(--marina);
    color: #fff;
    border-right: 0;
    padding-top: 20px !important;
}

.sidebar .section-label {
    color: rgba(255,255,255,.55) !important;
}

.sidebar .nav-link {
    color: rgba(255,255,255,.78);
    border-radius: 12px;
    padding: 11px 13px;
    margin-bottom: 5px;
    transition: .15s ease;
}

.sidebar .nav-link:hover {
    background: rgba(255,255,255,.09);
    color: #fff;
}

.sidebar .nav-link.active {
    background: var(--silk);
    color: var(--marina);
    font-weight: 700;
}

.main-content {
    flex: 1;
    min-width: 0;
}

.card {
    border-color: rgba(36, 62, 75, .08) !important;
    border-radius: 16px !important;
}

.card-header {
    border-radius: 16px 16px 0 0 !important;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 .125rem .25rem rgba(36,62,75,.04);
}

.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: var(--sky-soft);
    color: var(--marina);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.ai-header {
    background: var(--marina);
    color: #fff;
    border: 0;
}

.form-control,
.form-select {
    border-color: var(--border);
    border-radius: 10px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--sky);
    box-shadow: 0 0 0 .2rem rgba(110, 171, 199, .22);
}

.btn {
    border-radius: 10px;
    font-weight: 600;
}

.btn-primary {
    background: var(--marina);
    border-color: var(--marina);
}

.btn-primary:hover,
.btn-primary:focus {
    background: #172F3B;
    border-color: #172F3B;
}

.btn-outline-primary {
    color: var(--marina);
    border-color: var(--sky);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background: var(--sky);
    border-color: var(--sky);
    color: #fff;
}

.btn-accent {
    background: var(--silk);
    border-color: var(--silk);
    color: var(--marina);
}

.btn-accent:hover,
.btn-accent:focus {
    background: #F8D94E;
    border-color: #F8D94E;
    color: var(--marina);
}

.badge-status {
    background: var(--sky-soft);
    color: var(--marina);
    border: 1px solid rgba(110,171,199,.45);
}

.table thead th {
    color: var(--marina);
    background: #F1F7FA;
    border-bottom-color: var(--border);
    white-space: nowrap;
}

.table > :not(caption) > * > * {
    border-bottom-color: #E6EEF2;
}

.profile-card {
    background: linear-gradient(135deg, var(--marina), #345B6B);
    color: #fff;
}

.search-ai-box {
    background: linear-gradient(135deg, #F7FCFE, #FFFDF0);
    border: 1px solid var(--border);
}

.search-ai-box .input-group .form-control {
    min-height: 48px;
}

.search-ai-box .btn {
    min-height: 48px;
}

.logo-shell {
    background: var(--marina);
    border-radius: 20px;
    padding: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.text-marina { color: var(--marina) !important; }
.text-sky { color: var(--sky) !important; }
.bg-marina { background: var(--marina) !important; }
.bg-silk { background: var(--silk) !important; }
.bg-sky { background: var(--sky) !important; }

@media (max-width: 767.98px) {
    .app-layout { display: block; }
    .sidebar {
        width: 100%;
        border-right: 0;
        border-bottom: 0;
    }
    .sidebar .nav-link { display: inline-block; margin-right: 4px; }
}