:root {
    --navy: #12365f;
    --deep: #1b4a7a;
    --mid: #2f6ea5;
    --light: #4a89b8;
    --bg: #f4f8fb;
    --ink: #10243a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
}

.hero {
    text-align: center;
    padding: 40px 20px 30px;
    background: linear-gradient(180deg, #ffffff 0%, #eaf2f8 100%);
    border-bottom: 4px solid var(--mid);
}

.logo {
    width: 180px;
    height: auto;
    margin-bottom: 12px;
}

.hero h1 {
    color: var(--navy);
    font-size: 2rem;
    letter-spacing: 1px;
}

.tagline {
    color: var(--mid);
    margin-top: 6px;
    font-size: 1.05rem;
}

main {
    max-width: 860px;
    margin: 30px auto;
    padding: 0 20px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 26px;
}

.search-box input {
    flex: 1;
    padding: 13px 16px;
    font-size: 1rem;
    border: 2px solid var(--light);
    border-radius: 8px;
    outline: none;
}

.search-box input:focus { border-color: var(--navy); }

.search-box button {
    padding: 13px 28px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: var(--navy);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background .15s;
}

.search-box button:hover { background: var(--deep); }

.results {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(18,54,95,.08);
}

.count {
    color: var(--mid);
    font-weight: 600;
    margin-bottom: 12px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 10px 12px;
    background: var(--navy);
    color: #fff;
    font-size: .9rem;
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid #e3edf4;
}

tr:nth-child(even) td { background: #f7fbfd; }

.empty { color: #888; padding: 10px 0; }

.error {
    background: #fdecea;
    border: 1px solid #f5c2bd;
    color: #a33;
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.error pre { white-space: pre-wrap; margin-top: 6px; font-size: .85rem; }

footer {
    text-align: center;
    padding: 26px 20px;
    color: var(--deep);
    font-size: .9rem;
    margin-top: 40px;
    border-top: 1px solid #dbe7f0;
}

.hint { color: #9bb0c2; font-size: .82rem; margin-top: 4px; }