:root {
    /* Shared tokens */
    --text-primary: #FFFFFF;
    --text-secondary: #B0BEC5;
    --text-muted: #78909C;
    --border-radius: 16px;
    --border-radius-small: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Beauty (default) */
body,
body.theme-beauty {
    --primary-dark: #0A1929;
    --primary-medium: #132F4C;
    --primary-light: #1E4976;
    --accent-blue: #4A90E2;
    --accent-light: #5BA3F5;
    --accent-dark: #357ABD;
    --gradient-primary: linear-gradient(135deg, #1E4976 0%, #0A1929 100%);
    --gradient-card: linear-gradient(145deg, #132F4C 0%, #0A1929 100%);
    --gradient-accent: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
    --glow-1: rgba(74, 144, 226, 0.12);
    --glow-2: rgba(53, 122, 189, 0.12);
    --glow-3: rgba(30, 73, 118, 0.12);
    --shadow-hover: 0 12px 48px rgba(74, 144, 226, 0.2);
}

/* Detailing */
body.theme-detailing {
    --primary-dark: #10061F;
    --primary-medium: #1E1240;
    --primary-light: #2C1E63;
    --accent-blue: #A060FF;
    --accent-light: #BE8CFF;
    --accent-dark: #7C3AE6;
    --gradient-primary: linear-gradient(135deg, #2C1E63 0%, #10061F 100%);
    --gradient-card: linear-gradient(145deg, #1E1240 0%, #0E0A19 100%);
    --gradient-accent: linear-gradient(135deg, #BE8CFF 0%, #7C3AE6 100%);
    --glow-1: rgba(190, 140, 255, 0.16);
    --glow-2: rgba(124, 58, 230, 0.14);
    --glow-3: rgba(32, 18, 58, 0.18);
    --shadow-hover: 0 12px 48px rgba(190, 140, 255, 0.22);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--primary-dark);
    transition: background 0.6s ease, color 0.3s ease;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, var(--glow-1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--glow-2) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, var(--glow-3) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    transition: background 0.8s ease;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-mark {
    height: 40px;
    width: auto;
    display: block;
}

.mode-switcher {
    display: flex;
    gap: 12px;
    background: var(--primary-medium);
    padding: 6px;
    border-radius: var(--border-radius-small);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.mode-btn:hover {
    color: var(--text-primary);
    background: rgba(74, 144, 226, 0.1);
}

.mode-btn.active {
    background: var(--gradient-accent);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 80px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #FFFFFF 0%, #B0BEC5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Calculators Grid */
.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 80px;
}

.calculator-card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 32px;
    border: 1px solid rgba(74, 144, 226, 0.1);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.calculator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition);
}

.calculator-card:hover::before {
    transform: scaleX(1);
}

.calculator-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(74, 144, 226, 0.3);
}

.card-icon {
    margin-bottom: 24px;
    display: inline-block;
}

.card-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.card-description {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.card-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.metric {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(74, 144, 226, 0.15);
    border-radius: 20px;
    font-size: 12px;
    color: var(--accent-light);
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.card-button {
    width: 100%;
    padding: 14px 24px;
    background: var(--gradient-accent);
    border: none;
    border-radius: var(--border-radius-small);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.card-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.card-button:active {
    transform: translateY(0);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    overflow-y: auto;
    padding: 20px;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow);
    border: 1px solid rgba(74, 144, 226, 0.2);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(74, 144, 226, 0.1);
    border: 1px solid rgba(74, 144, 226, 0.2);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(74, 144, 226, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: 48px 40px;
}

/* Calculator Form */
.calculator-header {
    text-align: center;
    margin-bottom: 40px;
}

.calculator-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.calculator-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.progress-bar {
    height: 6px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: 10px;
    margin-bottom: 40px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 10px;
    transition: width 0.4s ease;
    box-shadow: 0 0 10px rgba(74, 144, 226, 0.5);
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-hint {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(74, 144, 226, 0.05);
    border: 2px solid rgba(74, 144, 226, 0.2);
    border-radius: var(--border-radius-small);
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(74, 144, 226, 0.1);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.1);
}

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

.form-buttons {
    display: flex;
    gap: 12px;
    margin-top: 32px;
}

.btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    border-radius: var(--border-radius-small);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: rgba(74, 144, 226, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.btn-secondary:hover {
    background: rgba(74, 144, 226, 0.15);
}

/* Results */
.results-container {
    display: none;
}

.results-container.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.result-card {
    background: rgba(74, 144, 226, 0.05);
    border: 1px solid rgba(74, 144, 226, 0.2);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 20px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.result-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-value {
    font-size: 36px;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-description {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.results-summary {
    background: var(--gradient-accent);
    border-radius: var(--border-radius);
    padding: 32px;
    margin-top: 32px;
    text-align: center;
}

.results-summary h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.results-summary p {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.95;
}

/* Lead Form */
.lead-form {
    background: var(--gradient-card);
    border: 2px solid rgba(74, 144, 226, 0.3);
    border-radius: var(--border-radius);
    padding: 32px;
    margin-top: 40px;
}

.lead-form h3 {
    font-size: 24px;
    margin-bottom: 12px;
    text-align: center;
}

.lead-form p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Growth Table */
.growth-table {
    width: 100%;
    margin-top: 24px;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.growth-table th {
    text-align: left;
    padding: 12px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.growth-table td {
    padding: 16px;
    background: rgba(74, 144, 226, 0.05);
    border-top: 1px solid rgba(74, 144, 226, 0.1);
    border-bottom: 1px solid rgba(74, 144, 226, 0.1);
}

.growth-table td:first-child {
    border-left: 1px solid rgba(74, 144, 226, 0.1);
    border-radius: 8px 0 0 8px;
    font-weight: 600;
    color: var(--accent-light);
}

.growth-table td:last-child {
    border-right: 1px solid rgba(74, 144, 226, 0.1);
    border-radius: 0 8px 8px 0;
}

.growth-table tr:hover td {
    background: rgba(74, 144, 226, 0.1);
}

/* Footer */
.footer {
    margin-top: 80px;
    padding: 32px 0;
    border-top: 1px solid rgba(74, 144, 226, 0.1);
}

.footer-content {
    text-align: center;
}

.footer-text {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

.footer-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-light);
}

.footer-link:hover::after {
    transform: scaleX(1);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    .header {
        margin-bottom: 40px;
    }

    .logo {
        font-size: 20px;
    }

    .mode-switcher {
        width: 100%;
    }

    .mode-btn {
        flex: 1;
        justify-content: center;
        padding: 10px;
        font-size: 13px;
    }

    .hero {
        margin-bottom: 60px;
    }

    .hero-stats {
        gap: 40px;
    }

    .stat-number {
        font-size: 36px;
    }

    .calculators-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .calculator-card {
        padding: 24px;
    }

    .modal-body {
        padding: 32px 24px;
    }

    .calculator-header h2 {
        font-size: 24px;
    }

    .form-buttons {
        flex-direction: column;
    }

    .result-value {
        font-size: 28px;
    }

    .growth-table {
        font-size: 14px;
    }

    .growth-table th,
    .growth-table td {
        padding: 10px;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-medium);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-blue);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-light);
}