:root {
    --bg-body: #0f172a;
    --bg-body-deep: #0b1324;
    --bg-panel: #1e293b;
    --bg-panel-soft: #192336;
    --bg-input: #101827;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.10);
    --border-strong: rgba(255, 255, 255, 0.18);
    --accent: #38bdf8;
    --accent-strong: #0ea5e9;
    --success: #34d399;
    --danger: #fb7185;
    --shadow-soft: 0 8px 24px rgba(0, 0, 0, .18);
    --shadow-strong: 0 18px 44px rgba(0, 0, 0, .28);
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: dark;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(56, 189, 248, .08), transparent 24rem),
        linear-gradient(180deg, var(--bg-body) 0%, var(--bg-body-deep) 100%);
    color: var(--text-main);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: inherit;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

.eyebrow {
    margin: 0 0 6px;
    color: #7dd3fc;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.button {
    min-height: 42px;
    padding: 10px 15px;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 800;
    transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button--primary {
    background: var(--accent-strong);
    color: #03111d;
}

.button--primary:hover {
    background: var(--accent);
}

.button--secondary,
.button--compact {
    border-color: var(--border);
    background: rgba(255, 255, 255, .04);
    color: var(--text-main);
}

.button--compact {
    min-height: 34px;
    padding: 7px 10px;
    font-size: .72rem;
}

.alert {
    margin-bottom: 16px;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: .78rem;
    line-height: 1.5;
}

.alert ul {
    margin: 0;
    padding-left: 18px;
}

.alert--success {
    border-color: rgba(52, 211, 153, .25);
    background: rgba(52, 211, 153, .08);
    color: #a7f3d0;
}

.alert--danger {
    border-color: rgba(251, 113, 133, .28);
    background: rgba(251, 113, 133, .08);
    color: #fecdd3;
}