:root {
    --primary: #0f4c5c;
    --secondary: #1b2a41;
    --accent: #e36414;
    --sand: #f8f4ef;
    --ink: #0b0d0f;
    --card: #ffffff;
    --muted: #6c757d;
    --shadow: 0 18px 60px rgba(15, 76, 92, 0.15);
}

body {
    font-family: "Work Sans", sans-serif;
    color: var(--ink);
}

body.noselect,
body.noselect * {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

body.noselect input,
body.noselect textarea,
body.noselect select,
body.noselect button {
    -webkit-user-select: auto;
    -moz-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

h1, h2, h3, h4, h5 {
    font-family: "DM Serif Display", serif;
    letter-spacing: 0.5px;
}

.app-bg {
    background: radial-gradient(circle at top left, #ffe6c7, transparent 45%),
        radial-gradient(circle at top right, #b8f2e6, transparent 40%),
        linear-gradient(180deg, #f8f4ef 0%, #f3ede6 100%);
    min-height: 100vh;
}

.app-nav {
    background: linear-gradient(90deg, #0f4c5c 0%, #1b2a41 100%);
}

.nav-logo {
    height: 34px;
    width: auto;
    border-radius: 6px;
}

.hero-card {
    background: linear-gradient(120deg, #0f4c5c 0%, #1b2a41 60%, #0f4c5c 100%);
    color: #fff;
    border-radius: 24px;
    padding: 3rem;
    box-shadow: var(--shadow);
}

.hero-panel {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 1.5rem;
    backdrop-filter: blur(8px);
}

.hero-stat + .hero-stat {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.7);
}

.stat-value {
    font-weight: 600;
    font-size: 1.1rem;
}

.feature-card,
.content-card,
.sub-card,
.metric-card,
.auth-card {
    background: var(--card);
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.content-card {
    margin-bottom: 1.5rem;
}

.sub-card {
    background: #fdfbf8;
}

.metric-card {
    text-align: center;
}

.metric-label {
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--muted);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.cta-banner {
    background: linear-gradient(90deg, #e36414 0%, #f4a261 100%);
    color: #fff;
    padding: 2rem 2.5rem;
    border-radius: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    box-shadow: var(--shadow);
}

.auth-card {
    max-width: 420px;
    margin: 2rem auto;
}

.info-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.chat-window {
    background: #ffffff;
    border-radius: 16px;
    padding: 1rem;
    max-height: 260px;
    overflow-y: auto;
}

.chat-message + .chat-message {
    margin-top: 0.75rem;
}

.app-footer {
    background: #111827;
    color: #ffffff;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

.impersonation-banner {
    background: #ffe7d1;
    color: #6b3f00;
    padding: 0.5rem 1rem;
    text-align: center;
    font-size: 0.9rem;
}

.support-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--accent);
    color: #ffffff;
    border-radius: 999px;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    box-shadow: var(--shadow);
    text-decoration: none;
    z-index: 1000;
}

.support-fab:hover {
    color: #ffffff;
    background: #f07a2d;
}

.admin-shell {
    display: flex;
    gap: 2rem;
}

.admin-sidebar {
    background: #ffffff;
    border-radius: 18px;
    padding: 1.5rem;
    min-width: 220px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.admin-sidebar .nav-link {
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.admin-sidebar .nav-link:hover {
    color: var(--accent);
}

.admin-main {
    flex: 1;
}

.fade-in {
    animation: fadeInUp 0.8s ease-in-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero-card {
        padding: 2rem;
    }

    .cta-banner {
        flex-direction: column;
        text-align: center;
    }

    .admin-shell {
        flex-direction: column;
    }
}