:root {
    --bg: #f8fafc;
    /* slate-50 */
    --card: #ffffff;
    /* white */
    --text: #0f172a;
    /* slate-900 */
    --muted: #475569;
    /* slate-600 */
    --brand: #4f46e5;
    /* indigo-600 */
    --brand-700: #4338ca;
    /* indigo-700 */
    --ring: rgba(79, 70, 229, 0.35);
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    background: linear-gradient(135deg, #ffffff 0%, var(--bg) 100%);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: radial-gradient(circle at 30% 30%, #a5b4fc, #6366f1 60%, #4338ca);
    box-shadow: 0 8px 16px rgba(79, 70, 229, .25);
}

.brand-name {
    font-weight: 800;
    letter-spacing: 0.2px;
}

.brand .logo-img {
    height: 32px; /* adjust size */
    width: auto;
  }

.nav-actions {
    display: flex;
    gap: 10px;
}

.btn {
    appearance: none;
    border: 1px solid transparent;
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .04s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--brand);
    color: #fff;
}

.btn-primary:hover {
    background: var(--brand-700);
}

.btn-outline {
    background: transparent;
    border-color: var(--brand);
    color: var(--brand);
}

.btn-outline:hover {
    background: rgba(79, 70, 229, .08);
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px var(--ring);
}

.hero {
    display: grid;
    place-items: center;
    text-align: center;
    padding: 72px 0 48px;
}

.title {
    font-size: clamp(2rem, 4vw + .5rem, 3rem);
    margin: 0 0 12px;
}

.title .accent {
    color: var(--brand);
}

.subtitle {
    color: var(--muted);
    font-size: 1.1rem;
    margin: 0 0 24px;
}

.cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 40px;
}

.card {
    background: var(--card);
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 18px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .06);
    text-align: left;
}

.card h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
}

.card p {
    margin: 0;
    color: var(--muted);
}

footer {
    text-align: center;
    color: #94a3b8;
    font-size: .9rem;
    padding: 48px 0 16px;
}