:root {
    --bg-1: #071327;
    --bg-2: #0e203c;
    --surface: rgba(10, 24, 47, 0.78);
    --surface-strong: rgba(8, 19, 38, 0.9);
    --border: rgba(125, 164, 214, 0.22);
    --text-main: #ecf3ff;
    --text-muted: #a8bfdc;
    --accent: #28d1b8;
    --accent-strong: #1ea995;
    --danger: #ff8b9d;
    --shadow: 0 28px 60px rgba(0, 6, 18, 0.45);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Manrope", "Segoe UI", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at 10% 10%, rgba(40, 209, 184, 0.15), transparent 36%),
        radial-gradient(circle at 90% 0%, rgba(43, 118, 240, 0.2), transparent 34%),
        linear-gradient(145deg, var(--bg-1), var(--bg-2) 60%, #081126);
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 34px 18px 30px;
}

.hero {
    border: 1px solid var(--border);
    background: linear-gradient(160deg, rgba(12, 31, 58, 0.92), rgba(7, 20, 41, 0.75));
    border-radius: 22px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.eyebrow {
    display: inline-block;
    margin: 0 0 10px;
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #9ddff0;
}

.main-title {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.1;
    font-weight: 800;
}

.subtitle {
    margin: 10px 0 0;
    max-width: 760px;
    color: var(--text-muted);
    font-size: 1rem;
}

.brand-link {
    display: inline-block;
    margin-top: 16px;
    color: #9be8ff;
    text-decoration: none;
    font-weight: 700;
}

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

.form-card,
.results-card {
    margin-top: 18px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.form-card {
    padding: 22px;
}

.form-card h2 {
    margin: 0;
    font-size: 1.22rem;
}

.section-note {
    margin: 7px 0 0;
    color: var(--text-muted);
}

.input-grid {
    margin-top: 18px;
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(129, 169, 219, 0.35);
    border-radius: 12px;
    color: var(--text-main);
    background: rgba(10, 25, 50, 0.9);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

input::placeholder {
    color: #8eaaca;
}

input:focus {
    border-color: #79d9c7;
    box-shadow: 0 0 0 3px rgba(40, 209, 184, 0.16);
    transform: translateY(-1px);
}

.btn-primary,
.btn-secondary {
    border: none;
    border-radius: 12px;
    padding: 11px 18px;
    color: #041229;
    font-weight: 800;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.2s ease, filter 0.2s ease, opacity 0.2s ease;
}

.btn-primary {
    margin-top: 16px;
    background: linear-gradient(90deg, var(--accent), #63e4d2);
}

.btn-secondary {
    margin-top: 14px;
    background: linear-gradient(90deg, #8fe9db, #b4f7ea);
}

.btn-primary:hover,
.btn-secondary:hover {
    transform: translateY(-2px);
    filter: brightness(1.04);
}

.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.status-text {
    min-height: 22px;
    margin: 12px 4px 2px;
    color: #7be7d2;
    font-weight: 600;
}

.status-text.error {
    color: var(--danger);
}

.results-card {
    padding: 20px;
}

.results-card h2 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.3rem;
}

#topics {
    display: grid;
    gap: 14px;
}

.idea-card {
    padding: 16px;
    border-radius: 14px;
    border: 1px solid rgba(128, 168, 220, 0.22);
    background: var(--surface-strong);
}

.idea-card h3 {
    margin: 0 0 10px;
    font-size: 1.08rem;
    color: #b7f7ec;
}

.metric-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin: 12px 0;
}

.metric-chip {
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(142, 188, 240, 0.25);
    background: rgba(16, 34, 63, 0.95);
    font-size: 0.92rem;
}

.metric-label {
    color: #93b4d9;
}

.idea-card p {
    margin: 8px 0;
    line-height: 1.52;
}

.analysis-panel {
    border-radius: 12px;
    border: 1px dashed rgba(131, 174, 227, 0.4);
    background: rgba(9, 22, 43, 0.8);
    padding: 14px;
    color: #cde3fe;
}

.analysis-content {
    display: grid;
    gap: 14px;
}

.analysis-summary {
    border: 1px solid rgba(129, 168, 223, 0.28);
    border-radius: 12px;
    background: rgba(11, 28, 53, 0.9);
    padding: 12px 14px;
}

.analysis-title {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 800;
}

.analysis-subtitle {
    margin: 6px 0 0;
    color: var(--text-muted);
}

.score-grid {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.score-card {
    border-radius: 12px;
    border: 1px solid rgba(133, 174, 226, 0.3);
    background: rgba(10, 27, 52, 0.9);
    padding: 10px;
}

.score-label {
    color: #99b8db;
    font-size: 0.87rem;
}

.score-value {
    margin-top: 6px;
    font-weight: 800;
    font-size: 1.2rem;
    color: #b7f7ec;
}

.analysis-section {
    border: 1px solid rgba(131, 173, 225, 0.25);
    border-radius: 12px;
    padding: 11px 13px;
    background: rgba(8, 22, 43, 0.95);
}

.analysis-section h4 {
    margin: 0 0 8px;
    font-size: 0.98rem;
}

.analysis-section p {
    margin: 6px 0;
    color: #d6e8ff;
    line-height: 1.5;
}

.analysis-list {
    margin: 0;
    padding-left: 18px;
}

.analysis-list li {
    margin: 6px 0;
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    margin-top: 18px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(8, 20, 38, 0.8);
    color: #a8c1df;
    font-weight: 600;
}

.site-footer a {
    color: #8fe9db;
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 900px) {
    .input-grid {
        grid-template-columns: 1fr;
    }

    .metric-row {
        grid-template-columns: 1fr;
    }

    .score-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .container {
        padding: 20px 12px 20px;
    }

    .hero,
    .form-card,
    .results-card {
        border-radius: 16px;
    }

    .score-grid {
        grid-template-columns: 1fr;
    }
}