:root {
    color-scheme: light;
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --brand-primary: #0e3762;
    --brand-accent: #f5a623;
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-muted: #ffffffd4;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: #0f1b2b;
    background: radial-gradient(circle at top, rgba(14, 55, 98, 0.85), rgba(1, 9, 17, 0.95)),
    url('https://images.unsplash.com/photo-1470163383814-543c8cef8a15?auto=format&fit=crop&w=2000&q=80') center/cover fixed;
    display: flex;
    align-items: stretch;
    justify-content: center;
    padding: 2rem;
}

main {
    width: min(1100px, 100%);
    background: rgba(3, 14, 24, 0.7);
    border-radius: 24px;
    padding: clamp(1.5rem, 3vw, 3rem);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
}

header {
    text-align: center;
    color: #fff;
    margin-bottom: clamp(1.5rem, 3vw, 3rem);
}

header h1 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.75rem);
    letter-spacing: -0.5px;
}

header p {
    color: var(--text-muted);
    max-width: 720px;
    margin: 1rem auto 0;
    line-height: 1.6;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.card h2 {
    margin-top: 0;
    color: var(--brand-primary);
    font-size: 1.25rem;
}

.supporting-points {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: grid;
    gap: 0.65rem;
}

.supporting-points li {
    display: flex;
    gap: 0.75rem;
    line-height: 1.5;
}

.supporting-points li::before {
    content: '•';
    color: var(--brand-accent);
    font-size: 1.5rem;
    line-height: 1;
}

form {
    display: grid;
    gap: 1rem;
}

label {
    font-weight: 600;
    color: var(--brand-primary);
    display: block;
    margin-bottom: 0.35rem;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    border: 1px solid rgba(14, 55, 98, 0.25);
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.85);
}

input:focus,
select:focus,
textarea:focus {
    outline: 3px solid rgba(245, 166, 35, 0.3);
    border-color: var(--brand-accent);
}

.inline-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.stats {
    margin-top: 1.25rem;
    border: 1px dashed rgba(14, 55, 98, 0.4);
    border-radius: 14px;
    padding: 1rem 1.25rem;
    background: rgba(14, 55, 98, 0.05);
}

.stats h3 {
    margin: 0 0 0.5rem;
    color: var(--brand-primary);
    font-size: 1rem;
}

.stats p {
    margin: 0;
    color: #1f2a37;
    line-height: 1.5;
}

.form-feedback {
    min-height: 1.5rem;
    margin-top: 0.75rem;
    font-weight: 600;
    color: var(--brand-primary);
}

.form-feedback.is-error {
    color: #c62828;
}

#btn_submit {
    align-self: start;
    border: none;
    border-radius: 30px;
    padding: 0.9rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: #d32f2f;
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    text-align: center;
    min-width: 180px;
}

#btn_submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(14, 55, 98, 0.25);
    background: #b71c1c;
}

#btn_submit .fa-spinner {
    display: none;
}

#btn_submit.is-loading .fa-spinner {
    display: inline-block;
}

#btn_submit.is-loading .btn-label {
    opacity: 0.8;
}
@media (max-width: 640px) {
    body {
        padding: 1rem;
    }

    main {
        padding: 1.5rem;
    }
}