:root {
    --primary-color: #8B5CF6;
    --secondary-color: #3B82F6;
    --accent-color: #EC4899;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 60px rgba(139, 92, 246, 0.3);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(139, 92, 246, 0.1) 0%, 
        rgba(59, 130, 246, 0.1) 50%, 
        rgba(236, 72, 153, 0.1) 100%);
    pointer-events: none;
    z-index: -1;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 2rem;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.nav-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s both;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: var(--transition-normal);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.4);
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-btn svg {
    width: 24px;
    height: 24px;
    transition: var(--transition-fast);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.6), 0 0 60px rgba(139, 92, 246, 0.4);
}

.cta-btn:hover svg {
    transform: translateY(3px);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.circle-1 {
    width: 600px;
    height: 600px;
    background: rgba(139, 92, 246, 0.2);
    top: -200px;
    right: -200px;
    animation: float 15s ease-in-out infinite;
}

.circle-2 {
    width: 400px;
    height: 400px;
    background: rgba(59, 130, 246, 0.2);
    bottom: -100px;
    left: -100px;
    animation: float 20s ease-in-out infinite reverse;
}

.circle-3 {
    width: 300px;
    height: 300px;
    background: rgba(236, 72, 153, 0.2);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 18s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(20px, -20px); }
    50% { transform: translate(-10px, 10px); }
    75% { transform: translate(15px, 15px); }
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.calculator-section {
    padding: 6rem 2rem 4rem;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calculator-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-normal);
}

.calculator-card:hover {
    box-shadow: var(--shadow-glow);
}

.calculator-card.excellent {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.2);
}

.calculator-card.moderate {
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.2);
}

.calculator-card.high {
    border-color: rgba(239, 68, 68, 0.5);
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.2);
}

.result-section {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.result-icon {
    width: 20px;
    height: 20px;
}

.result-value {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    transition: var(--transition-normal);
}

.result-classification {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-normal);
}

.result-classification.excellent {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.result-classification.moderate {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.result-classification.high {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.classification-icon {
    font-size: 1.25rem;
}

.formula-info {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    margin-bottom: 2rem;
    font-size: 0.875rem;
}

.formula-label {
    color: var(--text-secondary);
}

.formula-equation {
    font-family: 'Courier New', monospace;
    background: rgba(139, 92, 246, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.kgr-scale-info {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.scale-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.scale-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.scale-item.excellent .scale-dot {
    background: var(--success-color);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.scale-item.moderate .scale-dot {
    background: var(--warning-color);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.scale-item.high .scale-dot {
    background: var(--danger-color);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.scale-text {
    font-weight: 500;
}

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

.input-field label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.input-field label svg {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
}

.input-field input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition-fast);
    font-family: 'Inter', sans-serif;
}

.input-field input::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

.input-field input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.input-field input::-webkit-outer-spin-button,
.input-field input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.info-section {
    padding: 4rem 2rem;
}

.info-card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
}

.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.info-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.info-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.info-text {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.info-stat {
    background: rgba(139, 92, 246, 0.1);
    border-left: 3px solid var(--primary-color);
    padding: 1rem 1.5rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-top: 1rem;
}

.info-stat strong {
    color: var(--primary-color);
}

.steps-section {
    padding: 6rem 2rem;
    background: rgba(0, 0, 0, 0.2);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.step-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1rem auto;
}

.step-icon svg {
    width: 30px;
    height: 30px;
    color: var(--primary-color);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.step-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.benefits-section {
    padding: 6rem 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.benefit-icon svg {
    width: 35px;
    height: 35px;
    color: white;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.benefit-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
}

.benefit-text strong {
    color: var(--primary-color);
    font-weight: 600;
}

.cta-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1), rgba(236, 72, 153, 0.1));
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-text {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.cta-btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.last-updated {
    text-align: center;
    padding: 0.75rem;
    background: rgba(139, 92, 246, 0.1);
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.875rem;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

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

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo svg {
    width: 28px;
    height: 28px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: contents;
}

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

.footer-column h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

@keyframes countUp {
    from { opacity: 0; transform: scale(0.5); }
    to { opacity: 1; transform: scale(1); }
}

.result-value.counting {
    animation: countUp 0.5s ease;
}

.faq-section {
    padding: 6rem 2rem;
    background: rgba(0, 0, 0, 0.2);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    text-align: left;
    font-family: 'Inter', sans-serif;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.chatgpt-section {
    padding: 6rem 2rem;
}

.chatgpt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.chatgpt-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
}

.chatgpt-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.chatgpt-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.chatgpt-icon svg {
    width: 35px;
    height: 35px;
    color: white;
}

.chatgpt-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.chatgpt-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.tips-section {
    padding: 6rem 2rem;
    background: rgba(0, 0, 0, 0.2);
}

.tips-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    max-width: 1000px;
    margin: 0 auto;
}

.tip-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 1rem 1.5rem;
    transition: var(--transition-fast);
}

.tip-item:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.tip-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tip-text {
    color: var(--text-primary);
    font-weight: 500;
}

.cta-final-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1), rgba(236, 72, 153, 0.1));
}

.cta-final-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta-final-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-final-text {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.cta-btn-glow {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 1.25rem 2.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    transition: var(--transition-normal);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.cta-btn-glow::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cta-btn-glow:hover::before {
    opacity: 1;
}

.cta-btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.6), 0 0 60px rgba(139, 92, 246, 0.4);
}

.cta-btn-glow svg {
    width: 24px;
    height: 24px;
    transition: var(--transition-fast);
}

.cta-btn-glow:hover svg {
    transform: translateX(3px);
}

@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }

    .logo span {
        display: none;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .cta-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .calculator-section,
    .info-section,
    .steps-section,
    .benefits-section,
    .cta-section {
        padding: 3rem 1.5rem;
    }

    .calculator-card {
        padding: 2rem 1.5rem;
    }

    .result-value {
        font-size: 3rem;
    }

    .formula-info {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .info-card {
        padding: 2rem 1.5rem;
    }

    .steps-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .input-group {
        grid-template-columns: 1fr;
    }

    .result-value {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .info-title {
        font-size: 1.5rem;
    }
}