* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: #0f172a;
    background: #ffffff;
}

a {
    color: #2563eb;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 12px;
}

.btn {
    display: inline-block;
    text-decoration: none;
    border-radius: 0.5rem;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all .15s ease-in-out;
}

.btn-lg {
    padding: 0.6rem 1.1rem;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

.btn-primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

.btn-outline-primary {
    background: #fff;
    color: #1d4ed8;
    border-color: #1d4ed8;
}

.btn-outline-primary:hover {
    background: #1d4ed8;
    color: #fff;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.75rem;
}

.row > * {
    width: 100%;
    padding: 0.75rem;
}

.d-flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 0.5rem;
}

/* --- Public landing (Index) --- */
.landing-page {
    --landing-ink: #0f172a;
    --landing-muted: #64748b;
    --landing-line: #e2e8f0;
    --landing-card: #ffffff;
    padding-bottom: 2rem;
}

.landing-hero {
    position: relative;
    overflow: hidden;
    border-radius: 1.25rem;
    padding: clamp(1.65rem, 4vw, 2.65rem) clamp(1.25rem, 4vw, 2.5rem);
    margin-top: clamp(0.75rem, 2.5vw, 1.5rem);
    margin-bottom: 2rem;
    background: linear-gradient(165deg, #f8fafc 0%, #f1f5f9 45%, #eef2ff 100%);
    color: var(--landing-ink);
    text-align: center;
    border: 1px solid var(--landing-line);
    box-shadow: 0 12px 36px -24px rgba(15, 23, 42, 0.18);
}

.landing-hero__grid {
    position: absolute;
    inset: 0;
    opacity: 0.35;
    background-image: linear-gradient(rgba(15, 23, 42, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 23, 42, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, black 15%, transparent 72%);
    pointer-events: none;
}

.landing-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 46rem;
    margin: 0 auto;
}

.landing-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #3730a3;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.22);
    margin-bottom: 0.85rem;
}

.landing-title {
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.12;
    font-size: clamp(1.65rem, 3.8vw, 2.35rem);
    margin-bottom: 0.85rem;
    color: var(--landing-ink);
}

.landing-lead {
    font-size: clamp(1rem, 2vw, 1.15rem);
    line-height: 1.6;
    color: var(--landing-muted);
    margin-bottom: 1.35rem;
}

.landing-lead strong {
    color: var(--landing-ink);
    font-weight: 700;
}

.landing-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.landing-hero-actions .btn {
    min-width: 10.5rem;
    font-weight: 600;
    border-radius: 0.65rem;
    padding: 0.55rem 1.05rem;
}

.landing-hero-meta {
    font-size: 0.9rem;
    color: var(--landing-muted);
    margin-bottom: 0;
}

.landing-hero-meta a {
    color: #2563eb;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.landing-proto {
    margin-bottom: 2.75rem;
    border-radius: 1.25rem;
    padding: 1.5rem clamp(1.25rem, 3vw, 2rem);
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 40%, #fde68a 100%);
    border: 1px solid #fcd34d;
    box-shadow: 0 18px 40px -28px rgba(180, 83, 9, 0.45);
}

.landing-proto__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 1rem;
    margin-bottom: 0.65rem;
}

.landing-proto__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #92400e;
    background: rgba(251, 191, 36, 0.35);
    border: 1px solid rgba(217, 119, 6, 0.35);
}

.landing-proto__title {
    font-weight: 800;
    font-size: clamp(1.15rem, 2.5vw, 1.4rem);
    color: var(--landing-ink);
    margin: 0;
}

.landing-proto p {
    color: #78350f;
    margin-bottom: 0.65rem;
    line-height: 1.55;
    font-size: 0.98rem;
    max-width: 50rem;
}

.landing-proto p:last-child {
    margin-bottom: 0;
}

.landing-proto__note {
    font-size: 0.9rem;
    color: #92400e;
    opacity: 0.95;
}

.landing-section-title {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--landing-ink);
    margin-bottom: 0.35rem;
    text-align: center;
    font-size: clamp(1.35rem, 3vw, 1.75rem);
}

.landing-section-sub {
    text-align: center;
    color: var(--landing-muted);
    max-width: 40rem;
    margin: 0 auto 2rem;
    font-size: 1.02rem;
}

.landing-card {
    height: 100%;
    background: var(--landing-card);
    border: 1px solid var(--landing-line);
    border-radius: 1rem;
    padding: 1.35rem 1.25rem 1.45rem;
    box-shadow: 0 14px 30px -22px rgba(15, 23, 42, 0.35);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.landing-card h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--landing-ink);
    margin-bottom: 0.45rem;
}

.landing-card p {
    color: var(--landing-muted);
    margin-bottom: 0;
    line-height: 1.55;
    font-size: 0.98rem;
}

.landing-strip {
    margin-top: 2.75rem;
    border-radius: 1.25rem;
    padding: 2rem clamp(1.25rem, 3vw, 2.5rem);
    background: linear-gradient(120deg, #f8fafc 0%, #eef2ff 45%, #e0f2fe 100%);
    border: 1px solid var(--landing-line);
}

.landing-strip__title {
    font-weight: 800;
    color: var(--landing-ink);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.landing-strip p {
    color: var(--landing-muted);
    margin-bottom: 1.1rem;
    max-width: 44rem;
}

@media (min-width: 768px) {
    .col-md-4 {
        width: 33.333333%;
    }
}

@media (max-width: 575.98px) {
    .landing-hero-actions .btn {
        width: 100%;
    }
}