:root {
    --primary-900: #0a3622; --primary-800: #0d4a2e; --primary-700: #115c39; --primary-600: #155e3d; --primary-500: #1a7a4f; --primary-400: #22a068; --primary-300: #3dbc82; --primary-200: #6ed4a4; --primary-100: #a8e8c8; --primary-50: #e6f7ef;
    --accent-600: #b8952f; --accent-500: #d4af37; --accent-400: #e0c35c;
    --gray-900: #111827; --gray-800: #1f2937; --gray-700: #374151; --gray-600: #4b5563; --gray-500: #6b7280; --gray-400: #9ca3af; --gray-300: #d1d5db; --gray-200: #e5e7eb; --gray-100: #f3f4f6; --gray-50: #f9fafb; --white: #ffffff;
    --success: #059669; --error: #dc2626;
    --font-display: 'DM Serif Display', Georgia, serif; --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --spacing-xs: 0.25rem; --spacing-sm: 0.5rem; --spacing-md: 1rem; --spacing-lg: 1.5rem; --spacing-xl: 2rem; --spacing-2xl: 3rem; --spacing-3xl: 4rem; --spacing-4xl: 6rem;
    --radius-sm: 0.25rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1rem; --radius-2xl: 1.5rem; --radius-full: 9999px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05); --shadow-md: 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-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1); --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --transition-fast: 150ms ease; --transition-base: 250ms ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--gray-700); background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-900) 100%); min-height: 100vh; }

.app-header { padding: var(--spacing-lg) 0; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.1); }
.app-header .logo { display: inline-flex; align-items: center; gap: var(--spacing-sm); text-decoration: none; }
.app-header .logo-icon svg { width: 48px; height: 48px; }
.app-header .logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.app-header .logo-name { font-family: var(--font-display); font-size: 1.5rem; color: var(--white); font-weight: 400; }
.app-header .logo-tagline { font-size: 0.625rem; font-weight: 700; letter-spacing: 0.2em; color: var(--accent-400); }

.rep-banner { background: rgba(212, 175, 55, 0.15); border: 1px solid rgba(212, 175, 55, 0.3); padding: var(--spacing-md); text-align: center; color: var(--accent-400); font-size: 0.875rem; backdrop-filter: blur(8px); display: none; }
.rep-banner.active { display: block; }
.rep-banner strong { color: var(--white); }

.app-container { max-width: 840px; margin: 0 auto; padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-2xl); }

.form-wrapper { background: var(--white); border-radius: var(--radius-2xl); box-shadow: var(--shadow-2xl); overflow: hidden; }
.form-header { background: linear-gradient(135deg, var(--primary-50) 0%, var(--white) 100%); padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg); border-bottom: 1px solid var(--gray-100); text-align: center; }
.form-header h1 { font-family: var(--font-display); font-size: 1.75rem; color: var(--gray-900); margin-bottom: var(--spacing-xs); line-height: 1.2; }
.form-header p { color: var(--gray-600); font-size: 0.9375rem; margin-bottom: var(--spacing-lg); }

.progress-bar { display: flex; gap: var(--spacing-sm); max-width: 480px; margin: 0 auto; }
.progress-step { flex: 1; height: 5px; background: var(--gray-200); border-radius: var(--radius-full); transition: background var(--transition-base); }
.progress-step.active { background: var(--primary-500); }
.progress-step.completed { background: var(--success); }

.step-indicator { display: flex; justify-content: space-between; margin-top: var(--spacing-sm); font-size: 0.6875rem; color: var(--gray-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; max-width: 480px; margin-left: auto; margin-right: auto; }

.form-step { display: none; padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-xl); }
.form-step.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.form-step h2 { font-family: var(--font-display); font-size: 1.5rem; color: var(--gray-900); margin-bottom: var(--spacing-xs); line-height: 1.2; }
.form-step > p { color: var(--gray-600); margin-bottom: var(--spacing-xl); font-size: 0.9375rem; line-height: 1.5; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md) var(--spacing-lg); }
.form-group { margin-bottom: var(--spacing-md); }
.form-group.full { grid-column: span 2; }
.form-group label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.form-group input, .form-group select { width: 100%; padding: 0.875rem 1rem; font-size: 0.9375rem; border: 2px solid var(--gray-200); border-radius: var(--radius-lg); transition: all var(--transition-fast); font-family: inherit; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary-500); box-shadow: 0 0 0 3px rgba(21, 94, 61, 0.08); }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.875rem center; padding-right: 2.75rem; cursor: pointer; }
.form-group small { display: block; margin-top: 4px; font-size: 0.6875rem; color: var(--gray-500); line-height: 1.3; }

.amount-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); margin-bottom: var(--spacing-xl); }
.amount-card { position: relative; }
.amount-card input { position: absolute; opacity: 0; }
.amount-card label { display: block; padding: var(--spacing-lg) var(--spacing-sm); border: 2px solid var(--gray-200); border-radius: var(--radius-lg); text-align: center; cursor: pointer; transition: all var(--transition-base); background: var(--white); }
.amount-card label:hover { border-color: var(--primary-300); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.amount-card input:checked + label { border-color: var(--primary-500); background: var(--primary-50); box-shadow: 0 0 0 3px rgba(21, 94, 61, 0.08); }
.amount-card label strong { display: block; font-size: 1rem; color: var(--gray-900); font-weight: 700; margin-bottom: 2px; }
.amount-card label span { font-size: 0.75rem; color: var(--gray-500); }

.form-actions { display: flex; justify-content: space-between; align-items: center; padding: var(--spacing-lg) var(--spacing-xl); border-top: 1px solid var(--gray-100); background: var(--gray-50); gap: var(--spacing-md); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--spacing-xs); padding: 0.875rem 1.75rem; font-size: 0.9375rem; font-weight: 600; border-radius: var(--radius-lg); transition: all var(--transition-base); white-space: nowrap; border: none; cursor: pointer; font-family: inherit; }
.btn-primary { background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%); color: var(--white); box-shadow: 0 4px 14px 0 rgba(21, 94, 61, 0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%); transform: translateY(-1px); box-shadow: 0 6px 20px 0 rgba(21, 94, 61, 0.4); }
.btn-back { background: var(--white); color: var(--gray-700); border: 2px solid var(--gray-300); padding: 0.75rem 1.5rem; }
.btn-back:hover { border-color: var(--gray-400); background: var(--gray-50); transform: none; }

.success-message { text-align: center; padding: var(--spacing-3xl) var(--spacing-xl) var(--spacing-2xl); }
.success-icon { width: 80px; height: 80px; background: var(--success); border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; margin: 0 auto var(--spacing-lg); }
.success-icon svg { width: 40px; height: 40px; color: var(--white); stroke-width: 3; }
.success-message h2 { font-family: var(--font-display); font-size: 1.75rem; color: var(--gray-900); margin-bottom: var(--spacing-sm); }
.success-message p { color: var(--gray-600); margin-bottom: var(--spacing-md); line-height: 1.6; font-size: 0.9375rem; }
.success-message strong { color: var(--gray-900); font-size: 1rem; }
.success-message .next-steps { text-align: left; background: var(--gray-50); padding: var(--spacing-lg); border-radius: var(--radius-lg); margin-top: var(--spacing-xl); }
.success-message .next-steps h3 { font-size: 1rem; font-weight: 600; color: var(--gray-900); margin-bottom: var(--spacing-sm); }
.success-message .next-steps li { display: flex; align-items: flex-start; gap: var(--spacing-sm); padding: var(--spacing-sm) 0; font-size: 0.875rem; color: var(--gray-700); line-height: 1.5; }
.success-message .next-steps li svg { color: var(--primary-500); flex-shrink: 0; margin-top: 2px; width: 18px; height: 18px; }

.checkbox-group { display: flex; align-items: flex-start; gap: var(--spacing-sm); margin-top: var(--spacing-lg); }
.checkbox-group input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--primary-500); flex-shrink: 0; cursor: pointer; }
.checkbox-group label { font-size: 0.8125rem; color: var(--gray-600); line-height: 1.5; }
.checkbox-group label a { color: var(--primary-600); text-decoration: underline; }

.security-badge { text-align: center; padding: var(--spacing-md) var(--spacing-lg); color: var(--primary-200); font-size: 0.75rem; display: flex; align-items: center; justify-content: center; gap: var(--spacing-xs); }
.security-badge svg { color: var(--accent-400); }

@media (max-width: 768px) {
    .app-container { padding: var(--spacing-lg) var(--spacing-md); }
    .form-wrapper { border-radius: var(--radius-xl); }
    .form-header { padding: var(--spacing-lg); }
    .form-header h1 { font-size: 1.375rem; }
    .form-header p { font-size: 0.875rem; }
    .form-step { padding: var(--spacing-xl) var(--spacing-lg); }
    .form-step h2 { font-size: 1.25rem; }
    .form-step > p { font-size: 0.875rem; margin-bottom: var(--spacing-lg); }
    .form-row { grid-template-columns: 1fr; gap: var(--spacing-md) 0; }
    .form-group.full { grid-column: span 1; }
    .form-group { margin-bottom: 0; }
    .amount-cards { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-sm); margin-bottom: var(--spacing-lg); }
    .amount-card label { padding: var(--spacing-md) var(--spacing-xs); }
    .amount-card label strong { font-size: 0.9375rem; }
    .amount-card label span { font-size: 0.6875rem; }
    .form-actions { padding: var(--spacing-md) var(--spacing-lg); flex-wrap: wrap; }
    .btn-back, .btn-primary { flex: 1; min-width: 130px; padding: 0.75rem 1.25rem; font-size: 0.875rem; }
}

@media (max-width: 480px) {
    .app-container { padding: var(--spacing-md); }
    .form-header h1 { font-size: 1.25rem; }
    .amount-cards { grid-template-columns: 1fr; }
    .step-indicator { font-size: 0.625rem; }
    .form-actions { flex-direction: column-reverse; gap: var(--spacing-sm); }
    .btn-back, .btn-primary { width: 100%; }
}