:root {
    --color-ink: #1f2c37;
    --color-muted: #5f7382;
    --color-accent: #0d639c;
    --color-panel: rgba(255, 255, 255, 0.94);
    --color-shadow: rgba(16, 41, 61, 0.14);
    --color-background: #eef4f7;
    --radius-panel: 20px;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--color-ink);
    background:
        radial-gradient(circle at top left, rgba(13, 99, 156, 0.14), transparent 34%),
        linear-gradient(180deg, #f8fbfd 0%, var(--color-background) 100%);
}

body {
    min-height: 100vh;
}

.page-shell {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
}

.hero-card {
    width: min(680px, 100%);
    padding: 32px;
    border-radius: var(--radius-panel);
    background: var(--color-panel);
    box-shadow: 0 24px 60px var(--color-shadow);
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 12px;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.05;
}

.lead {
    margin: 0 0 24px;
    color: var(--color-muted);
    font-size: 1.02rem;
    line-height: 1.6;
}

.upload-panel {
    display: grid;
    gap: 12px;
    padding: 18px;
    border-radius: 16px;
    background: #f4f8fa;
}

.upload-label {
    font-weight: 700;
}

input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #cad6df;
    border-radius: 12px;
    background: #ffffff;
    font: inherit;
}

button {
    appearance: none;
    width: fit-content;
    padding: 0.85rem 1.1rem;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(180deg, #1378bc 0%, #0d639c 100%);
    box-shadow: 0 14px 24px rgba(13, 99, 156, 0.2);
    color: #ffffff;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.notes {
    margin-top: 18px;
    color: var(--color-muted);
}

.status-card {
    margin-top: 18px;
    padding: 16px;
    border-radius: 14px;
    background: #eef5f9;
    color: var(--color-ink);
}

.status-card.is-empty {
    background: #f7f9fb;
    color: var(--color-muted);
}

.status-card strong {
    display: block;
    margin-bottom: 8px;
}

.status-card p {
    margin: 0;
}

.secondary-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--color-accent);
    font-weight: 700;
    text-decoration: none;
}

.secondary-link:hover {
    text-decoration: underline;
}

.notes p {
    margin: 0.35rem 0;
}

@media (max-width: 720px) {
    .hero-card {
        padding: 24px;
    }

    button {
        width: 100%;
    }
}