:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #64748b;
    --color-secondary-dark: #475569;
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-light: #94a3b8;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --color-error: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

main {
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    padding: 0.875rem 1.5rem;
}

@media (max-width: 480px) {
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
    }
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn--primary {
    background-color: var(--color-primary);
    color: white;
}

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.btn--secondary:hover {
    background-color: var(--color-border);
    transform: translateY(-2px);
}

.btn--large {
    padding: 1rem 1.75rem;
    font-size: 1.0625rem;
}

@media (max-width: 480px) {
    .btn--large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

.btn--full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3.5rem;
}

@media (min-width: 768px) {
    .header__container {
        height: 4rem;
    }
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text);
}

.logo__icon {
    font-size: 1.25rem;
}

@media (min-width: 768px) {
    .logo__icon {
        font-size: 1.5rem;
    }
}

.logo__text {
    font-weight: 700;
    font-size: 1.125rem;
}

@media (min-width: 768px) {
    .logo__text {
        font-size: 1.25rem;
    }
}

.nav {
    display: none;
    position: fixed;
    top: 3.5rem;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    overflow-y: auto;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
        position: static;
        flex-direction: row;
        gap: 2rem;
        background: none;
        padding: 0;
        overflow: visible;
    }
}

@media (max-width: 480px) {
    .nav {
        height: 300px;
    }
}

.nav.active {
    display: flex;
}

.nav__link {
    display: block;
    padding: 0.75rem 0;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    transition: color var(--transition-fast);
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
    .nav__link {
        display: inline-flex;
        padding: 0;
        font-size: 1rem;
        border-bottom: none;
    }
}

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

.header__cta {
    display: none;
}

@media (min-width: 768px) {
    .header__cta {
        display: inline-flex;
    }
}

.burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2rem;
    height: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

@media (min-width: 768px) {
    .burger {
        display: none;
    }
}

.burger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding: 5rem 0 3rem;
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero {
        padding: 6rem 0 4rem;
    }
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 50%, #f0fdf4 100%);
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
}

.hero__container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero__container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

.hero__content {
    text-align: center;
    width: 100%;
}

@media (min-width: 1024px) {
    .hero__content {
        text-align: left;
    }
}

.hero__title {
    font-size: clamp(1.5rem, 6vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-text);
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.5rem;
    }
}

.highlight {
    color: var(--color-primary);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    opacity: 0.3;
}

.hero__subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .hero__subtitle {
        font-size: 1.125rem;
        margin-bottom: 1rem;
    }
}

.hero__location {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .hero__location {
        font-size: 0.875rem;
        margin-bottom: 2rem;
    }
}

.hero__cta-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 1024px) {
    .hero__cta-wrapper {
        align-items: flex-start;
    }
}

.hero__cta-note {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.hero__visual {
    display: flex;
    justify-content: center;
    width: 100%;
}

.hero__map-preview {
    background: white;
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 320px;
    transform: none;
}

@media (min-width: 768px) {
    .hero__map-preview {
        max-width: 350px;
        padding: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .hero__map-preview {
        transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
        transition: transform var(--transition-slow);
    }

    .hero__map-preview:hover {
        transform: perspective(1000px) rotateY(0) rotateX(0);
    }
}

.hero__map-card {
    display: flex;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .hero__map-card {
        padding-bottom: 1.5rem;
        margin-bottom: 1.5rem;
    }
}

.hero__map-icon {
    font-size: 2rem;
}

@media (min-width: 768px) {
    .hero__map-icon {
        font-size: 2.5rem;
    }
}

.hero__map-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.hero__map-name {
    font-weight: 700;
    font-size: 1rem;
}

@media (min-width: 768px) {
    .hero__map-name {
        font-size: 1.125rem;
    }
}

.hero__map-address {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.hero__map-rating {
    color: #fbbf24;
    font-size: 0.8125rem;
}

.hero__map-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .hero__map-stats {
        gap: 1rem;
    }
}

.stat {
    text-align: center;
    padding: 0.75rem;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

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

.stat__value {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .stat__value {
        font-size: 1.5rem;
    }
}

.stat__label {
    font-size: 0.6875rem;
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .stat__label {
        font-size: 0.75rem;
    }
}

.hero__scroll {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-light);
    font-size: 0.8125rem;
    animation: bounce 2s infinite;
}

@media (min-width: 768px) {
    .hero__scroll {
        bottom: 2rem;
        font-size: 0.875rem;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.hero__scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-text-light);
    border-bottom: 2px solid var(--color-text-light);
    transform: rotate(45deg);
}

@media (min-width: 768px) {
    .hero__scroll-arrow {
        width: 24px;
        height: 24px;
    }
}

.section-title {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
}

@media (min-width: 768px) {
    .section-title {
        margin-bottom: 3rem;
    }
}

.section-title--left {
    text-align: left;
}

.problems {
    padding: 3rem 0;
    background-color: var(--color-bg-secondary);
}

@media (min-width: 768px) {
    .problems {
        padding: 5rem 0;
    }
}

.problems__grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 640px) {
    .problems__grid {
        gap: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .problems__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.problem-card {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all var(--transition-normal);
}

@media (min-width: 640px) {
    .problem-card {
        padding: 1.5rem;
        gap: 1rem;
    }
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.problem-card--wide {
    grid-column: 1 / -1;
}

.problem-card__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .problem-card__icon {
        font-size: 2rem;
    }
}

.problem-card__text {
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--color-text);
}

@media (min-width: 640px) {
    .problem-card__text {
        font-size: 1rem;
    }
}

.solution {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .solution {
        padding: 5rem 0;
    }
}

.solution__grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 640px) {
    .solution__grid {
        gap: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .solution__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.solution-card {
    position: relative;
    padding: 1.25rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

@media (min-width: 640px) {
    .solution-card {
        padding: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .solution-card {
        padding: 2rem;
    }
}

.solution-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.solution-card__number {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-light);
}

@media (min-width: 640px) {
    .solution-card__number {
        top: 1rem;
        right: 1rem;
        font-size: 0.875rem;
    }
}

.solution-card__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

@media (min-width: 640px) {
    .solution-card__title {
        font-size: 1.125rem;
        margin-bottom: 0.5rem;
    }
}

.solution-card__text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

@media (min-width: 640px) {
    .solution-card__text {
        font-size: 0.875rem;
    }
}

.steps {
    padding: 3rem 0;
    background-color: var(--color-bg-secondary);
}

@media (min-width: 768px) {
    .steps {
        padding: 5rem 0;
    }
}

.steps__timeline {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 640px) {
    .steps__timeline {
        gap: 1.5rem;
    }
}

.step {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

@media (min-width: 640px) {
    .step {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 1.5rem;
        align-items: center;
        padding: 1.5rem;
    }
}

.step:hover {
    box-shadow: var(--shadow-md);
}

@media (min-width: 640px) {
    .step:hover {
        transform: translateX(8px);
    }
}

.step__marker {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .step__marker {
        width: 3rem;
        height: 3rem;
    }
}

.step__number {
    color: white;
    font-weight: 700;
    font-size: 1.125rem;
}

@media (min-width: 640px) {
    .step__number {
        font-size: 1.25rem;
    }
}

.step__content {
    flex: 1;
}

.step__title {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

@media (min-width: 640px) {
    .step__title {
        font-size: 1.25rem;
        margin-bottom: 0.25rem;
    }
}

.step__text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

@media (min-width: 640px) {
    .step__text {
        font-size: 0.875rem;
    }
}

.step__visual {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    align-self: flex-start;
}

.step__icon {
    font-size: 1.25rem;
}

@media (min-width: 640px) {
    .step__icon {
        font-size: 1.5rem;
    }
}

.examples {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .examples {
        padding: 5rem 0;
    }
}

.examples__comparison {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .examples__comparison {
        flex-direction: row;
        justify-content: center;
        align-items: stretch;
        gap: 2rem;
    }
}

.example {
    flex: 1;
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.example--bad {
    border: 2px solid #fee2e2;
}

.example--good {
    border: 2px solid #dcfce7;
}

.example__badge {
    padding: 0.625rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.9375rem;
    background-color: #fee2e2;
    color: #dc2626;
}

.example__badge--good {
    background-color: #dcfce7;
    color: #16a34a;
}

.example__card {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .example__card {
        padding: 1.5rem;
        gap: 1rem;
    }
}

.example__item {
    padding: 0.75rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .example__item {
        padding: 1rem;
        font-size: 1rem;
    }
}

.example__item--empty {
    background-color: #fef2f2;
    color: #b91c1c;
    opacity: 0.7;
}

.example__item--filled {
    background-color: #f0fdf4;
    color: #15803d;
}

.examples__arrow {
    font-size: 2rem;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .examples__arrow {
        font-size: 3rem;
    }
}

.pricing {
    padding: 3rem 0;
    background-color: var(--color-bg-secondary);
}

@media (min-width: 768px) {
    .pricing {
        padding: 5rem 0;
    }
}

.pricing__grid {
    display: grid;
    gap: 1.5rem;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .pricing__grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
        gap: 2rem;
    }
}

.price-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

@media (min-width: 640px) {
    .price-card {
        padding: 2rem;
    }
}

.price-card--featured {
    border: 2px solid var(--color-primary);
}

.price-card__badge {
    position: absolute;
    top: -0.625rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
}

@media (min-width: 640px) {
    .price-card__badge {
        top: -0.75rem;
        padding: 0.25rem 1rem;
        font-size: 0.75rem;
    }
}

.price-card__header {
    text-align: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .price-card__header {
        padding-bottom: 1.5rem;
        margin-bottom: 1.5rem;
    }
}

.price-card__name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

@media (min-width: 640px) {
    .price-card__name {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
}

.price-card__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.125rem;
}

.price-card__value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-text);
}

@media (min-width: 640px) {
    .price-card__value {
        font-size: 2.5rem;
    }
}

.price-card__currency {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-secondary);
}

@media (min-width: 640px) {
    .price-card__currency {
        font-size: 1.5rem;
    }
}

.price-card__features {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .price-card__features {
        gap: 0.75rem;
        margin-bottom: 1.5rem;
    }
}

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

@media (min-width: 640px) {
    .price-card__features li {
        font-size: 0.9375rem;
        gap: 0.75rem;
    }
}

.price-card__features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.pricing__note {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .pricing__note {
        margin-top: 2rem;
        font-size: 0.875rem;
    }
}

.promo {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .promo {
        padding: 5rem 0;
    }
}

.promo__card {
    max-width: 100%;
    margin: 0 1rem;
    padding: 2rem 1.25rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-xl);
    text-align: center;
    color: white;
}

@media (min-width: 768px) {
    .promo__card {
        max-width: 600px;
        margin: 0 auto;
        padding: 3rem 2rem;
    }
}

.promo__icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .promo__icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }
}

.promo__title {
    font-size: 1.375rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .promo__title {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
}

.promo__text {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .promo__text {
        font-size: 1.125rem;
        margin-bottom: 2rem;
    }
}

.promo__card .btn--primary {
    background-color: white;
    color: var(--color-primary);
}

.promo__card .btn--primary:hover {
    background-color: var(--color-bg-secondary);
}

.about {
    padding: 3rem 0;
    background-color: var(--color-bg-secondary);
}

@media (min-width: 768px) {
    .about {
        padding: 5rem 0;
    }
}

.about__content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .about__content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
    }
}

.about__text {
    order: 2;
}

@media (min-width: 1024px) {
    .about__text {
        order: 1;
    }
}

.about__paragraph {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .about__paragraph {
        font-size: 1.125rem;
        margin-bottom: 1.5rem;
    }
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

@media (min-width: 768px) {
    .about__features {
        gap: 0.75rem;
        margin-top: 2rem;
    }
}

.about__feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: 0.9375rem;
}

.about__feature-icon {
    width: 1.25rem;
    height: 1.25rem;
    background-color: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    font-weight: 700;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .about__feature-icon {
        width: 1.5rem;
        height: 1.5rem;
        font-size: 0.75rem;
    }
}

.about__visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    order: 1;
}

@media (min-width: 1024px) {
    .about__visual {
        order: 2;
        gap: 2rem;
    }
}

.about__avatar {
    width: 120px;
    height: 120px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .about__avatar {
        width: 150px;
        height: 150px;
        font-size: 4rem;
    }
}

.about__stats {
    display: flex;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .about__stats {
        gap: 2rem;
    }
}

.about__stat {
    text-align: center;
}

.about__stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .about__stat-value {
        font-size: 2rem;
    }
}

.about__stat-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .about__stat-label {
        font-size: 0.875rem;
    }
}

.extras {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .extras {
        padding: 5rem 0;
    }
}

.extras__grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 640px) {
    .extras__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .extras__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.extra-card {
    padding: 1.25rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-normal);
}

@media (min-width: 640px) {
    .extra-card {
        padding: 1.5rem;
    }
}

.extra-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.extra-card__icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .extra-card__icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
}

.extra-card__title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

@media (min-width: 640px) {
    .extra-card__title {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
}

.extra-card__text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

@media (min-width: 640px) {
    .extra-card__text {
        font-size: 0.875rem;
    }
}

.cta {
    padding: 3rem 0;
    background-color: var(--color-bg-secondary);
}

@media (min-width: 768px) {
    .cta {
        padding: 5rem 0;
    }
}

.cta__card {
    max-width: 100%;
    margin: 0 1rem;
    padding: 2rem 1.25rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

@media (min-width: 640px) {
    .cta__card {
        max-width: 500px;
        margin: 0 auto;
        padding: 2.5rem 2rem;
    }
}

.cta__title {
    font-size: 1.375rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

@media (min-width: 768px) {
    .cta__title {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
}

.cta__text {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

@media (min-width: 768px) {
    .cta__text {
        margin-bottom: 2rem;
        font-size: 1rem;
    }
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form__group {
    width: 100%;
}

.form__input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: var(--color-bg);
}

@media (min-width: 768px) {
    .form__input {
        padding: 1rem 1.25rem;
    }
}

.form__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form__input::placeholder {
    color: var(--color-text-light);
}

.form__input.error {
    border-color: var(--color-error);
}

.form__input.success {
    border-color: var(--color-success);
}

.form__error {
    display: none;
    color: var(--color-error);
    font-size: 0.75rem;
    margin-top: 0.375rem;
    text-align: left;
}

.form__error.visible {
    display: block;
}

.form__note {
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.form__success {
    padding: 1.5rem;
    text-align: center;
}

.form__success-icon {
    width: 3.5rem;
    height: 3.5rem;
    background-color: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1rem;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.form__success h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.form__success p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.form__row {
    display: flex;
    gap: 1rem;
}

.form__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form__spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.form__error {
    display: none;
    color: var(--color-error);
    font-size: 0.75rem;
    margin-top: 0.375rem;
    text-align: left;
}

.form__error.visible {
    display: block;
}

.form__captcha-question {
    font-weight: 600;
    color: var(--color-text);
}

.form__captcha-input {
    width: 80px;
    padding: 0.5rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    text-align: center;
}

.form__captcha-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form__spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.footer {
    background-color: var(--color-text);
    color: white;
    padding: 3rem 0 0;
}

@media (min-width: 768px) {
    .footer {
        padding: 4rem 0 0;
    }
}

.footer__container {
    display: grid;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .footer__container {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 2rem;
        padding-bottom: 3rem;
    }
}

.footer__info {
    order: 3;
}

@media (min-width: 768px) {
    .footer__info {
        order: 1;
    }
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.footer__logo .logo__text {
    color: white;
}

.footer__desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer__contact {
    order: 1;
}

@media (min-width: 768px) {
    .footer__contact {
        order: 2;
    }
}

.footer__links {
    order: 2;
}

@media (min-width: 768px) {
    .footer__links {
        order: 3;
    }
}

.footer__title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer__city {
    margin-bottom: 0.5rem;
    opacity: 0.7;
    font-size: 0.875rem;
}

.footer__link {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

@media (min-width: 768px) {
    .footer__link {
        margin-bottom: 0.5rem;
    }
}

.footer__link:hover {
    color: white;
}

.footer__bottom {
    padding: 1.25rem 0;
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
}

.fixed-cta {
    position: fixed;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    z-index: 999;
    background-color: var(--color-primary);
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius-full);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-fast);
    animation: slideUp 0.3s ease;
}

@media (min-width: 768px) {
    .fixed-cta {
        display: none;
    }
}

.fixed-cta:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media print {
    .header,
    .fixed-cta,
    .hero__scroll {
        display: none !important;
    }
}

.form__hidden {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form__row {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 480px) {
    .form__row {
        flex-direction: row;
    }
    
    .form__row .form__group {
        flex: 1;
    }
}

.btn__text {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.form__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form__spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.form__error {
    display: none;
    color: var(--color-error);
    font-size: 0.75rem;
    margin-top: 0.375rem;
    text-align: left;
    padding-left: 0.25rem;
}

.form__error.visible {
    display: block;
}

.form__textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: var(--color-bg);
    resize: vertical;
    min-height: 100px;
}

@media (min-width: 768px) {
    .form__textarea {
        padding: 1rem 1.25rem;
        min-height: 120px;
    }
}

.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form__textarea::placeholder {
    color: var(--color-text-light);
}

.form__textarea.error {
    border-color: var(--color-error);
}

.form__telegram {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.form__telegram-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.btn--telegram {
    background-color: #0088cc;
    color: white;
}

.btn--telegram:hover {
    background-color: #0077b5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}