/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Manrope:wght@600;700&display=swap');

/* CSS Variables */
:root {
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Manrope', sans-serif;

    --color-primary: #0A2540; /* Глубокий синий */
    --color-accent: #4A90E2;  /* Яркий синий */
    --color-secondary: #525F7F; /* Приглушенный сине-серый */
    --color-background-light: #F6F9FC; /* Светло-серый */
    --color-white: #FFFFFF;
    --color-border: #E6E6E6;

    --header-height: 70px;
}

/* Global Styles & Resets */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background-color: transparent;
}

.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

/* Header */
.header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.header__logo {
    font-family: var(--font-secondary);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav__link {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-secondary);
    position: relative;
    padding: 5px 0;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease-in-out;
}

.nav__link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav__link--button {
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 8px 20px;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.nav__link--button:hover {
    background-color: #357ABD;
    color: var(--color-white);
    transform: translateY(-2px);
}

.nav__link--button::after {
    display: none;
}

.burger {
    display: none;
    width: 28px;
    height: 22px;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    z-index: 110;
}

.burger__line {
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-background-light);
    padding: 60px 0 30px;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.footer__logo {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--color-white);
}

.footer__tagline {
    color: var(--color-secondary);
    font-size: 15px;
    max-width: 250px;
    color: #aeb8c4;
}

.footer__title {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-white);
    font-weight: 600;
}

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

.footer__link {
    color: #aeb8c4;
}

.footer__link:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.footer__list--contacts .footer__item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer__icon {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
}

.footer__bottom {
    border-top: 1px solid #2a3f55;
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #aeb8c4;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(5px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    
    .nav.is-active {
        display: flex;
    }

    .nav__list {
        flex-direction: column;
        gap: 35px;
    }

    .nav__link {
        font-size: 24px;
        color: var(--color-primary);
    }
    
    .nav__link--button {
        padding: 12px 28px;
    }

    .burger {
        display: flex;
    }

    .burger.is-active .burger__line:nth-child(1) {
        transform: translateY(9.5px) rotate(45deg);
    }
    .burger.is-active .burger__line:nth-child(2) {
        opacity: 0;
    }
    .burger.is-active .burger__line:nth-child(3) {
        transform: translateY(-9.5px) rotate(-45deg);
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer__tagline {
        margin: 0 auto 20px;
    }
    .footer__list--contacts .footer__item {
       justify-content: center;
    }
}

/* Hero Section */
.main {
    padding-top: var(--header-height);
}

.hero {
    background-color: var(--color-white);
    padding: 80px 0;
}

.hero__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero__content {
    max-width: 550px;
}

.hero__title {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
    /* Animation start state */
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s 0.2s forwards;
}

.hero__subtitle {
    font-size: 18px;
    color: var(--color-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
    /* Animation start state */
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s 0.4s forwards;
}

.button {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 14px 32px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-align: center;
}

.button:hover {
    background-color: #357ABD;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.hero__button {
    /* Animation start state */
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s 0.6s forwards;
}


.hero__image-wrapper {
    flex-shrink: 0;
    max-width: 500px;
    /* Animation start state */
    opacity: 0;
    transform: scale(0.95);
    animation: scaleIn 0.8s 0.8s forwards;
}

.hero__image {
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(10, 37, 64, 0.1);
}


/* Keyframe Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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


/* Responsive for Hero */
@media (max-width: 992px) {
    .hero__container {
        flex-direction: column;
        text-align: center;
    }

    .hero__content {
        max-width: 700px;
        order: 2;
    }

    .hero__image-wrapper {
        order: 1;
        margin-bottom: 40px;
    }

    .hero__title {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }
    .hero__title {
        font-size: 32px;
    }
    .hero__subtitle {
        font-size: 16px;
    }
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: var(--color-background-light);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
}

.section-header__title {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.section-header__subtitle {
    font-size: 18px;
    color: var(--color-secondary);
    line-height: 1.7;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--color-white);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(10, 37, 64, 0.08);
}

.service-card__icon-wrapper {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: #eaf2fe;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card__icon {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
}

.service-card__title {
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

.service-card__description {
    font-size: 15px;
    color: var(--color-secondary);
    line-height: 1.6;
}

/* Responsive for Services */
@media (max-width: 992px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services {
        padding: 60px 0;
    }
    .section-header__title {
        font-size: 30px;
    }
    .section-header__subtitle {
        font-size: 16px;
    }
    .services__grid {
        grid-template-columns: 1fr;
    }
}

/* Cases Section */
.cases {
    padding: 80px 0;
    background-color: var(--color-white);
}

.cases__wrapper {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.case-item {
    display: flex;
    align-items: center;
    gap: 50px;
}

/* Alternating layout for even items */
.case-item:nth-child(even) {
    flex-direction: row-reverse;
}

.case-item__image-wrapper {
    flex: 1;
    max-width: 450px;
}

.case-item__image {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(10, 37, 64, 0.1);
}

.case-item__content {
    flex: 1;
}

.case-item__name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.case-item__challenge,
.case-item__result {
    color: var(--color-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

.case-item__challenge strong,
.case-item__result strong {
    color: var(--color-primary);
    font-weight: 600;
}

.case-item__quote {
    margin-top: 20px;
    padding-left: 20px;
    border-left: 3px solid var(--color-accent);
    font-style: italic;
    font-size: 16px;
    color: #333;
}

/* Responsive for Cases */
@media (max-width: 992px) {
    .case-item,
    .case-item:nth-child(even) {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .case-item__image-wrapper {
        max-width: 100%;
    }
    
    .case-item__quote {
        margin-left: auto;
        margin-right: auto;
        max-width: 500px;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .cases {
        padding: 60px 0;
    }
    
    .cases__wrapper {
        gap: 50px;
    }

    .case-item__name {
        font-size: 22px;
    }
}

/* Blog Section */
.blog {
    padding: 80px 0;
    background-color: var(--color-background-light);
}

.blog__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.post-card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(10, 37, 64, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(10, 37, 64, 0.1);
}

.post-card__image-link {
    display: block;
}

.post-card__image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-card__content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.post-card__category {
    display: inline-block;
    background-color: #eaf2fe;
    color: var(--color-accent);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 15px;
    align-self: flex-start;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.post-card__category:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
}

.post-card__title {
    font-size: 20px;
    line-height: 1.4;
    font-weight: 600;
    margin-bottom: 10px;
    flex-grow: 1;
}

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

.post-card__excerpt {
    font-size: 15px;
    color: var(--color-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.post-card__read-more {
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
    color: var(--color-accent);
}

.post-card__icon {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.post-card__read-more:hover .post-card__icon {
    transform: translateX(4px);
}

/* Responsive for Blog */
@media (max-width: 992px) {
    .blog__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog {
        padding: 60px 0;
    }
    .blog__grid {
        grid-template-columns: 1fr;
    }
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--color-white);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
    gap: 60px;
}

.about__image-wrapper {
    max-width: 400px;
    margin: 0 auto;
}

.about__image {
    width: 100%;
    border-radius: 50%;
    border: 8px solid var(--color-background-light);
    box-shadow: 0 10px 30px rgba(10, 37, 64, 0.08);
}

.about__title {
    font-size: 36px;
    margin-bottom: 20px;
    line-height: 1.3;
}

.about__text {
    font-size: 17px;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.about__features {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.about__feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 16px;
    font-weight: 500;
}

.about__feature-icon {
    width: 22px;
    height: 22px;
    color: var(--color-accent);
}

/* Responsive for About */
@media (max-width: 992px) {
    .about__grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .about__image-wrapper {
        order: -1; /* Puts image on top on mobile */
    }

    .about__features {
        align-items: center;
    }
    
    .about__feature-item {
        justify-content: center;
        text-align: left;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .about {
        padding: 60px 0;
    }
    .about__title {
        font-size: 30px;
    }
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--color-background-light);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

.contact__title {
    font-size: 36px;
    margin-bottom: 20px;
}

.contact__text {
    font-size: 17px;
    color: var(--color-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact__detail-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 17px;
    font-weight: 500;
}

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

.contact__icon {
    width: 22px;
    height: 22px;
    color: var(--color-accent);
}

.contact__form-wrapper {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(10, 37, 64, 0.1);
}

.form__group {
    margin-bottom: 20px;
}

.form__label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-secondary);
}

.form__input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form__input.error {
    border-color: #e74c3c;
}

.form__group--checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.form__checkbox {
    margin-top: 5px;
    flex-shrink: 0;
}

.form__checkbox-label {
    font-size: 14px;
    color: var(--color-secondary);
    line-height: 1.5;
}

.form__checkbox-label a {
    color: var(--color-accent);
    text-decoration: underline;
}

.form__button {
    width: 100%;
    padding: 15px;
    font-size: 18px;
}

.form__success-message {
    text-align: center;
    padding: 30px;
}
.form__success-message h3 {
    font-size: 24px;
    margin-bottom: 10px;
}
.form__success-message p {
    color: var(--color-secondary);
}


/* Responsive for Contact */
@media (max-width: 992px) {
    .contact__grid {
        grid-template-columns: 1fr;
    }
    .contact__info {
        text-align: center;
    }
    .contact__details {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .contact {
        padding: 60px 0;
    }
    .contact__title {
        font-size: 30px;
    }
    .contact__form-wrapper {
        padding: 25px;
    }
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: -100%; /* Initially hidden */
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 20px;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    z-index: 2000;
    transition: bottom 0.5s ease-in-out;
}

.cookie-popup.is-active {
    bottom: 0;
}

.cookie-popup__text {
    font-size: 15px;
    text-align: center;
}

.cookie-popup__text a {
    color: var(--color-white);
    text-decoration: underline;
}

.cookie-popup__button {
    padding: 8px 20px;
    flex-shrink: 0;
}

/* Styles for Policy Pages (e.g., privacy.html) */
.pages {
    padding: 120px 0 80px; /* Extra padding top to offset fixed header */
}

.pages .container {
    max-width: 800px;
}

.pages h1 {
    font-size: 40px;
    margin-bottom: 30px;
}

.pages h2 {
    font-size: 28px;
    margin: 40px 0 20px;
}

.pages p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.pages ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.pages li {
    margin-bottom: 10px;
    color: var(--color-secondary);
}

.pages a {
    color: var(--color-accent);
    text-decoration: underline;
}

.pages a:hover {
    text-decoration: none;
}

/* Responsive for Cookie Popup */
@media (max-width: 768px) {
    .cookie-popup {
        flex-direction: column;
        text-align: center;
    }
}