*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --copper-400: #f59e0b;
    --copper-500: #d97706;
    --copper-600: #b45309;
    --copper-700: #92400e;
    --night-50: #FAFAF9;
    --night-100: #F5F5F4;
    --night-200: #E7E5E4;
    --night-500: #78716C;
    --night-600: #57534E;
    --night-900: #1C1917;

    --color-primary: var(--copper-500);
    --color-primary-dark: var(--copper-600);
    --color-primary-light: #fef3c7;
    --color-bg: #ffffff;
    --color-bg-alt: var(--night-50);
    --color-text: var(--night-900);
    --color-text-secondary: var(--night-600);
    --color-text-muted: var(--night-500);
    --color-border: var(--night-200);
    --color-success: #22c55e;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-glow: 0 0 20px rgba(217, 119, 6, 0.15);
    --container: 960px;
    --header-h: 72px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-family);
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 16px;
    padding: 14px 28px;
}

.btn--large { font-size: 18px; padding: 16px 32px; }
.btn--full { width: 100%; }

.btn--primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    text-decoration: none;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn--outline:hover {
    background: var(--color-primary-light);
    text-decoration: none;
}

.input, .select {
    width: 100%;
    font-family: var(--font-family);
    font-size: 16px;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color 0.2s;
    outline: none;
}

.input:focus, .select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.input::placeholder { color: var(--color-text-muted); }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 20px;
    font-weight: 800;
    color: var(--color-text);
}
.logo:hover { text-decoration: none; }

.logo__text { color: var(--color-primary); }
.logo__suffix { color: var(--color-text-muted); font-weight: 400; }

/* Hero section */
.guide-hero {
    padding: 120px 0 64px;
    background: linear-gradient(135deg, var(--night-50) 0%, #fffbeb 100%);
    text-align: center;
}

.guide-hero__badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
}

.guide-hero h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--color-text);
}

.guide-hero__subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto 32px;
    line-height: 1.5;
}

/* Benefits */
.guide-benefits {
    padding: 64px 0;
    background: var(--color-bg);
}

.guide-benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.benefit-card {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.benefit-card__icon {
    font-size: 28px;
    flex-shrink: 0;
}

.benefit-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.benefit-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Form section */
.guide-form {
    padding: 64px 0 80px;
    background: var(--color-bg-alt);
}

.guide-form__box {
    max-width: 520px;
    margin: 0 auto;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.guide-form h2 {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.guide-form__note {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.form__field {
    margin-bottom: 16px;
}

.form__field label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-text);
}

.form__field label .required {
    color: #ef4444;
}

.form__field .select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form__disclaimer {
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 12px;
}

.form__success {
    display: none;
    text-align: center;
    padding: 40px 24px;
}

.form__success--visible {
    display: block;
}

.form__success-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.form__success h3 {
    font-size: 22px;
    font-weight: 700;
    color: #166534;
    margin-bottom: 8px;
}

.form__success p {
    font-size: 15px;
    color: var(--color-text-secondary);
}

.form__error {
    display: none;
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
}

.form__error--visible {
    display: block;
}

/* About section */
.guide-about {
    padding: 64px 0;
    background: var(--color-bg);
}

.guide-about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.guide-about h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 16px;
}

.guide-about p {
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.guide-about__list {
    list-style: none;
    padding: 0;
}

.guide-about__list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 15px;
    color: var(--color-text);
}

.guide-about__list li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 700;
    margin-right: 10px;
}

/* Thank you page */
.thankyou {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0fdf4 0%, var(--night-50) 100%);
    padding: 24px;
}

.thankyou__card {
    max-width: 560px;
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 48px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.thankyou__icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.thankyou h1 {
    font-size: 32px;
    font-weight: 800;
    color: #166534;
    margin-bottom: 12px;
}

.thankyou__text {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 32px;
}

.thankyou__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.thankyou__actions .btn--outline {
    color: var(--color-text);
    border-color: var(--color-border);
}

.thankyou__actions .btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Footer */
.guide-footer {
    padding: 32px 0;
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.guide-footer p {
    font-size: 13px;
    color: var(--color-text-muted);
}

@media (max-width: 360px) {
    .guide-hero { padding: 80px 0 32px; }
    .guide-hero h1 { font-size: 22px; }
    .guide-hero__subtitle { font-size: 14px; }
    .guide-benefits, .guide-form, .guide-about { padding: 32px 0; }
    .guide-form__box { padding: 20px 16px; }
    .thankyou__card { padding: 24px 16px; }
    .thankyou h1 { font-size: 22px; }
    .thankyou__icon { font-size: 48px; }

    .guide-about__grid { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 768px) {
    .guide-hero { padding: 100px 0 40px; }
    .guide-hero h1 { font-size: 28px; }
    .guide-hero__subtitle { font-size: 16px; }
    .guide-benefits, .guide-form, .guide-about { padding: 40px 0; }
    .guide-about__grid { grid-template-columns: 1fr; gap: 24px; }
    .guide-form__box { padding: 24px 20px; }
    .thankyou__card { padding: 32px 24px; }
    .thankyou h1 { font-size: 26px; }
}