:root {
    --navy: #0b1b3a;
    --navy-light: #1a2f59;
    --red: #f25555;
    --white: #ffffff;
    --gold: #f5c878;
    --slate: #050d1f;
    --surface: #101c32;
    --surface-alt: #182745;
    --text: #eef2ff;
    --muted: #c0c9df;
    --font-main: "Manrope", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --border-thin: 1px;
    --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.45);
    --shadow-strong: 0 18px 40px rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
}

a {
    color: inherit;
    text-decoration: none;
}

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 4px;
    border-radius: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    border: none;
    color: var(--text);
    background: linear-gradient(120deg, #121f3b, #1d2e52);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.btn.primary {
    background: linear-gradient(120deg, #f67f7f, #f9ae85);
    box-shadow: 0 12px 24px rgba(246, 127, 127, 0.25);
}

.btn.secondary {
    background: linear-gradient(120deg, #121f3b, #1d2e52);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}