:root {
    --bg: #0f1115;
    --bg-card: #1a1d24;
    --bg-card-hover: #232732;
    --text: #e6e8eb;
    --text-dim: #8a9099;
    --border: #2a2e38;
    --accent: #5b8def;
    --error-bg: #3a1818;
    --error-border: #6b2a2a;
    --error-text: #f0b8b8;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Login page ---- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.login-card h1 {
    margin: 0 0 4px;
    font-size: 28px;
    letter-spacing: 0.5px;
}

.login-card .subtitle {
    margin: 0 0 24px;
    color: var(--text-dim);
    font-size: 14px;
}

.login-card form { display: flex; flex-direction: column; gap: 16px; }

.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }

.login-card label span { color: var(--text-dim); }

.login-card input[type=text],
.login-card input[type=password] {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.15s;
}

.login-card input:focus { border-color: var(--accent); }

.login-card button {
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 6px;
    padding: 11px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 4px;
}

.login-card button:hover { filter: brightness(1.1); }

.error {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 13px;
    margin-bottom: 16px;
}

/* ---- Portal ---- */
.portal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    border-bottom: 1px solid var(--border);
}

.portal-header .brand {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.portal-header .user {
    color: var(--text-dim);
    font-size: 13px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.portal-header .user strong { color: var(--text); font-weight: 500; }

.portal-header .logout {
    color: var(--text-dim);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
}

.portal-header .logout:hover { color: var(--text); border-color: var(--text-dim); text-decoration: none; }

.tiles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    padding: 32px;
    max-width: 960px;
    margin: 0 auto;
}

.tile {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--tile-color, var(--accent));
    border-radius: 8px;
    padding: 20px 22px;
    color: var(--text);
    transition: background 0.15s, transform 0.15s, border-color 0.15s;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 0 1 calc(33.333% - 12px);
    min-width: 240px;
    box-sizing: border-box;
}

.tile:hover {
    background: var(--bg-card-hover);
    text-decoration: none;
    transform: translateY(-2px);
}

.tile-icon {
    flex: 0 0 auto;
    color: var(--tile-color, var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-icon svg {
    width: 36px;
    height: 36px;
}

.tile-text {
    flex: 1 1 auto;
    min-width: 0;
}

.tile-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 2px;
}

.tile-tagline {
    color: var(--text-dim);
    font-size: 12px;
}

@media (max-width: 720px) {
    .tile { flex: 1 1 100%; }
}