:root {
    --bg: linear-gradient(135deg, #f8efe4 0%, #d8e7f2 100%);
    --panel: rgba(255, 255, 255, 0.92);
    --text: #132238;
    --muted: #526277;
    --accent: #163a5f;
    --accent-strong: #0d2842;
    --border: #d6deea;
    --success-bg: #e7f6ec;
    --success-text: #116329;
    --error-bg: #fde8e8;
    --error-text: #b42318;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(255,255,255,0.7), transparent 30%),
        radial-gradient(circle at bottom right, rgba(22,58,95,0.14), transparent 32%),
        var(--bg);
}

a {
    color: var(--accent);
}

.shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(280px, 420px) minmax(320px, 480px);
    justify-content: center;
    gap: 24px;
    padding: 32px;
    align-items: center;
}

.panel {
    background: var(--panel);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.6);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(21, 35, 53, 0.12);
}

.hero-panel {
    padding: 40px;
}

.form-panel,
.dashboard-panel {
    padding: 28px;
}

.eyebrow {
    display: inline-block;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(22,58,95,0.08);
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1 {
    margin: 16px 0 12px;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
}

p {
    color: var(--muted);
    line-height: 1.6;
}

.stack {
    display: grid;
    gap: 16px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    font-size: 15px;
}

input:focus {
    outline: 2px solid rgba(22,58,95,0.16);
    border-color: var(--accent);
}

button {
    padding: 14px 16px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.ghost-button {
    background: #eef3f8;
    color: var(--accent);
}

.form-note {
    margin: 0;
    font-size: 14px;
}

.message {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
}

.message.success {
    background: var(--success-bg);
    color: var(--success-text);
}

.message.error {
    background: var(--error-bg);
    color: var(--error-text);
}

.dashboard-head {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 16px;
}

.user-card {
    margin-top: 20px;
    padding: 20px;
    border-radius: 18px;
    background: rgba(22,58,95,0.05);
}

.details {
    padding-left: 20px;
    color: var(--text);
}

@media (max-width: 900px) {
    .shell {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    .hero-panel {
        order: 2;
    }

    .form-panel,
    .dashboard-panel {
        order: 1;
    }
}