:root {
    --bg-main: #f5f7fb;
    --surface: rgba(255, 255, 255, 0.88);
    --surface-strong: #ffffff;
    --text-main: #0f172a;
    --text-soft: #526277;
    --text-muted: #7a889d;
    --line: rgba(148, 163, 184, 0.2);
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --success: #059669;
    --danger: #dc2626;
    --warning: #d97706;
    --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.12);
    --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.08);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 18px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 28%),
        radial-gradient(circle at top right, rgba(6, 182, 212, 0.12), transparent 24%),
        linear-gradient(180deg, #f8fbff 0%, #eef3f9 100%);
}

button {
    border: none;
    cursor: pointer;
    font: inherit;
    transition: 0.18s ease;
}

button:disabled {
    opacity: 0.7;
    cursor: default;
    transform: none !important;
}

.hidden {
    display: none;
}

.hint {
    font-size: 12px;
    color: var(--text-soft);
}

.placeholder {
    color: #94a3b8;
}

.section-title {
    margin: 0;
    font-size: 28px;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.token-chip {
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 11px;
    font-weight: 800;
    white-space: nowrap;
}