/* ===========================
   CSS VARIABLES
   =========================== */
:root {
    --color-primary: #1B2A5B;
    --color-primary-light: #2a3d7a;
    --color-accent: #7ED957;
    --color-accent-light: #a8f08a;
    --color-sky: #A8E6F0;
    --color-dark: #1A1A2E;
    --color-text: #333;
    --color-text-light: #666;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F8FC;
    --color-border: #E0E5EE;
    --color-success: #27AE60;
    --color-warning: #F39C12;
    --color-danger: #E74C3C;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(27,42,91,0.08);
    --shadow-lg: 0 8px 40px rgba(27,42,91,0.12);
    --container: 1200px;
    --header-h: 72px;
}

/* ===========================
   RESET & BASE
   =========================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-accent);
}

ul {
    list-style: none;
}

/* ===========================
   CONTAINER
   =========================== */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    gap: 8px;
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-dark);
    border-color: var(--color-accent);
}

.btn--primary:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(126,217,87,0.3);
}

.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn--outline:hover {
    background: var(--color-primary);
    color: #fff;
}

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

.btn--white:hover {
    background: var(--color-bg-alt);
}

.btn--outline-white {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn--outline-white:hover {
    background: #fff;
    color: var(--color-primary);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 17px;
}

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

/* ===========================
   FORM INPUTS
   =========================== */
.form-input {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font);
    font-size: 15px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    transition: border-color 0.2s;
    outline: none;
}

.form-input:focus {
    border-color: var(--color-accent);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-note {
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 8px;
    text-align: center;
}

/* ===========================
   SECTION TITLES
   =========================== */
.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===========================
   HEADER
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-h);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
}

.header__logo-img {
    height: 40px;
    width: auto;
}

.header__nav {
    display: flex;
    gap: 28px;
}

.header__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    transition: color 0.2s;
}

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

.header__actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header__phone {
    font-weight: 600;
    font-size: 15px;
    color: var(--color-dark);
}

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

.header__cta {
    padding: 10px 20px;
    font-size: 13px;
}

.header__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.header__burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===========================
   HERO
   =========================== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, #fff 100%);
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

.hero__title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-dark);
    margin-bottom: 20px;
}

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

.hero__subtitle {
    font-size: 19px;
    color: var(--color-text-light);
    margin-bottom: 24px;
    max-width: 620px;
}

.hero__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-primary);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    border-radius: 20px;
}

.hero__buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.hero__micro {
    font-size: 13px;
    color: var(--color-text-light);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
}

.stat__number {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stat__label {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.4;
}

/* ===========================
   PAINS (Tabs)
   =========================== */
.pains {
    padding: 80px 0;
}

.pains__tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.pains__tab {
    padding: 12px 24px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    border: 2px solid var(--color-border);
    border-radius: 30px;
    background: #fff;
    cursor: pointer;
    transition: all 0.25s;
    color: var(--color-text);
}

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

.pains__tab.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.pains__content {
    display: none;
}

.pains__content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pains__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.pains__problems h3,
.pains__solutions h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

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

.pains__list li {
    padding-left: 28px;
    position: relative;
    font-size: 15px;
    line-height: 1.5;
}

.pains__list li::before {
    content: '✕';
    position: absolute;
    left: 0;
    color: var(--color-danger);
    font-weight: 700;
}

.pains__list--green li::before {
    content: '✓';
    color: var(--color-success);
}

.pains__price {
    margin-top: 20px;
    font-size: 17px;
    margin-bottom: 20px;
}

/* ===========================
   TRUST
   =========================== */
.trust {
    padding: 48px 0;
    background: var(--color-bg-alt);
}

.trust__logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.trust__logo-item {
    padding: 16px 32px;
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 15px;
}

/* ===========================
   SERVICES
   =========================== */
.services {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}

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

.service-card__icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.service-card__title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.service-card__text {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===========================
   WHY US
   =========================== */
.why {
    padding: 80px 0;
}

.why__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.why__item {
    text-align: center;
    padding: 32px;
}

.why__number {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.why__text {
    font-size: 15px;
    color: var(--color-text);
    line-height: 1.6;
}

/* ===========================
   PORTFOLIO
   =========================== */
.portfolio {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.portfolio__filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.portfolio__filter {
    padding: 8px 20px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    border: 2px solid var(--color-border);
    border-radius: 20px;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--color-text);
}

.portfolio__filter:hover,
.portfolio__filter.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio__card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.25s;
}

.portfolio__card:hover {
    transform: translateY(-4px);
}

.portfolio__card.hidden {
    display: none;
}

.portfolio__image {
    height: 220px;
    background: #e8ecf2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio__placeholder {
    font-size: 48px;
}

.portfolio__info {
    padding: 24px;
}

.portfolio__tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-sky);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 12px;
    margin-bottom: 8px;
}

.portfolio__info h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.portfolio__info p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===========================
   HOW WE WORK
   =========================== */
.how {
    padding: 80px 0;
}

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

.how__step {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-left: 3px solid var(--color-border);
    padding-left: 32px;
    position: relative;
}

.how__step:last-child {
    border-left-color: transparent;
}

.how__step-number {
    position: absolute;
    left: -18px;
    top: 24px;
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.how__step-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.how__step-content p {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 6px;
}

.how__antibain {
    display: inline-block;
    font-size: 13px;
    color: var(--color-success);
    font-weight: 600;
}

.how__cta {
    text-align: center;
    margin-top: 40px;
}

/* ===========================
   REVIEWS
   =========================== */
.reviews {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

.review-card__stars {
    color: var(--color-warning);
    font-size: 18px;
    margin-bottom: 8px;
}

.review-card__tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--color-sky);
    color: var(--color-primary);
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    margin-bottom: 12px;
}

.review-card__text {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
}

.review-card__author strong {
    display: block;
    font-size: 14px;
    color: var(--color-dark);
}

.review-card__author span {
    font-size: 12px;
    color: var(--color-text-light);
}

/* ===========================
   MAINTENANCE
   =========================== */
.maintenance {
    padding: 80px 0;
}

.maintenance__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.maintenance__card {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 2px solid var(--color-border);
    transition: transform 0.25s;
}

.maintenance__card:hover {
    transform: translateY(-4px);
}

.maintenance__card--featured {
    border-color: var(--color-accent);
    position: relative;
}

.maintenance__card--featured::before {
    content: 'Популярный';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-dark);
    padding: 4px 16px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 12px;
}

.maintenance__plan {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.maintenance__count {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.maintenance__features {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.maintenance__features li {
    font-size: 14px;
    padding-left: 24px;
    position: relative;
}

.maintenance__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.maintenance__price {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 20px;
}

/* ===========================
   FAQ
   =========================== */
.faq {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq__item {
    background: #fff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.faq__question {
    width: 100%;
    padding: 20px 24px;
    font-family: var(--font);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s;
}

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

.faq__icon {
    font-size: 24px;
    font-weight: 300;
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq__item.active .faq__icon {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 24px;
}

.faq__item.active .faq__answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq__answer p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===========================
   CTA BANNER
   =========================== */
.cta-banner {
    padding: 80px 0;
    background: var(--color-primary);
}

.cta-banner__inner {
    text-align: center;
}

.cta-banner__title {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.cta-banner__text {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 32px;
}

.cta-banner__buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   CONTACTS
   =========================== */
.contacts {
    padding: 80px 0;
}

.contacts__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contacts__item {
    margin-bottom: 16px;
    font-size: 15px;
}

.contacts__item strong {
    display: block;
    margin-bottom: 4px;
}

.contacts__form-wrapper {
    margin-top: 32px;
}

.contacts__form-wrapper h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 24px;
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer__logo {
    height: 36px;
    margin-bottom: 12px;
    filter: brightness(0) invert(1);
}

.footer__desc {
    font-size: 14px;
    line-height: 1.6;
}

.footer__col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer__col a,
.footer__col span {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 8px;
    transition: color 0.2s;
}

.footer__col a:hover {
    color: var(--color-accent);
}

.footer__col p {
    font-size: 13px;
    margin-bottom: 4px;
}

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
}

/* ===========================
   MODALS
   =========================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    background: #fff;
    border-radius: var(--radius);
    padding: 40px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    z-index: 1;
}

.modal__content--quiz {
    max-width: 640px;
}

.modal__content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-dark);
}

.modal__content p {
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--color-text-light);
    transition: color 0.2s;
    line-height: 1;
}

.modal__close:hover {
    color: var(--color-dark);
}

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

/* ===========================
   QUIZ
   =========================== */
.quiz__header {
    margin-bottom: 24px;
}

.quiz__title {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.quiz__progress {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.quiz__progress-bar {
    height: 100%;
    background: var(--color-accent);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.quiz__step-label {
    font-size: 13px;
    color: var(--color-text-light);
}

.quiz__step {
    display: none;
}

.quiz__step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.quiz__step h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 20px;
}

.quiz__options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quiz__option {
    cursor: pointer;
}

.quiz__option input {
    display: none;
}

.quiz__option-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.quiz__option-card:hover {
    border-color: var(--color-primary);
}

.quiz__option input:checked + .quiz__option-card {
    border-color: var(--color-accent);
    background: rgba(126,217,87,0.08);
}

.quiz__option-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.quiz__option-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-dark);
}

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

.quiz__nav {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
    gap: 12px;
}

.quiz__result {
    text-align: center;
    padding: 40px 20px;
}

.quiz__result-icon {
    font-size: 56px;
    margin-bottom: 16px;
}

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

.quiz__result-text {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===========================
   STICKY MOBILE BAR
   =========================== */
.sticky-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1500;
    background: #fff;
    border-top: 1px solid var(--color-border);
    padding: 8px 12px;
    gap: 8px;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}

.sticky-bar__btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}

.sticky-bar__btn--phone {
    background: var(--color-primary);
    color: #fff;
}

.sticky-bar__btn--tg {
    background: #229ED9;
    color: #fff;
}

.sticky-bar__btn--calc {
    background: var(--color-accent);
    color: var(--color-dark);
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__inner {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .why__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
        margin-bottom: 32px;
    }

    /* Header mobile */
    .header__nav {
        display: none;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow);
    }

    .header__nav.active {
        display: flex;
    }

    .header__phone {
        display: none;
    }

    .header__cta {
        display: none;
    }

    .header__burger {
        display: flex;
    }

    /* Hero mobile */
    .hero {
        padding: 100px 0 48px;
    }

    .hero__title {
        font-size: 32px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat {
        padding: 16px;
    }

    .stat__number {
        font-size: 28px;
    }

    /* Pains mobile */
    .pains__tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .pains__tab {
        text-align: center;
    }

    .pains__grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Services mobile */
    .services__grid {
        grid-template-columns: 1fr;
    }

    /* Why mobile */
    .why__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .why__item {
        padding: 20px;
    }

    /* Portfolio mobile */
    .portfolio__grid {
        grid-template-columns: 1fr;
    }

    /* Reviews mobile */
    .reviews__grid {
        grid-template-columns: 1fr;
    }

    /* Maintenance mobile */
    .maintenance__grid {
        grid-template-columns: 1fr;
    }

    /* Contacts mobile */
    .contacts__grid {
        grid-template-columns: 1fr;
    }

    /* Footer mobile */
    .footer__inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* CTA banner mobile */
    .cta-banner__title {
        font-size: 24px;
    }

    /* Modal mobile */
    .modal__content {
        padding: 28px 20px;
    }

    /* Sticky bar mobile */
    .sticky-bar {
        display: flex;
    }

    /* Add bottom padding for sticky bar */
    .footer {
        padding-bottom: 80px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 26px;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        width: 100%;
    }

    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .quiz__option-card {
        padding: 12px 14px;
    }

    .quiz__option-text {
        font-size: 14px;
    }

    .cta-banner__buttons {
        flex-direction: column;
        align-items: center;
    }
}