/* STAGE 0: GLOBAL STYLES */

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

/* CSS Variables */
:root {
	--font-family-headings: 'Manrope', sans-serif;
	--font-family-body: 'Inter', sans-serif;

	--color-primary: #1a2a4c;
	--color-accent: #00c2ff;
	--color-background: #f4f7fa;
	--color-white: #ffffff;
	--color-text: #333333;
	--color-text-light: #666666;

	--header-height: 80px;
	--border-radius: 8px;
	--transition-duration: 0.3s;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--font-family-headings);
	color: var(--color-primary);
	line-height: 1.2;
	margin-bottom: 0.5em;
}

a {
	color: var(--color-accent);
	text-decoration: none;
	transition: color var(--transition-duration) ease;
}

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

ul {
	list-style: none;
}

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

.container {
	width: 100%;
	max-width: 1200px;
	margin-left: auto;
	margin-right: auto;
	padding-left: 15px;
	padding-right: 15px;
}

/* STAGE 1: HEADER */
.header {
	background-color: var(--color-white);
	height: var(--header-height);
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
	transition: background-color var(--transition-duration) ease;
}

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

.logo {
	display: flex;
	align-items: center;
	gap: 10px;
	font-family: var(--font-family-headings);
	font-weight: 700;
	font-size: 24px;
	color: var(--color-primary);
}
.logo:hover {
	color: var(--color-primary);
}
.logo__icon {
	transition: transform var(--transition-duration) ease;
}
.logo:hover .logo__icon {
	transform: rotate(15deg);
}

.header__nav-list {
	display: flex;
	gap: 30px;
}

.header__nav-link {
	color: var(--color-text);
	font-weight: 500;
	position: relative;
	padding: 5px 0;
}

.header__nav-link::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 2px;
	background-color: var(--color-accent);
	transition: width var(--transition-duration) ease;
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
	width: 100%;
}

.burger {
	display: none;
	background: none;
	border: none;
	cursor: pointer;
	padding: 10px;
	z-index: 1010;
}

.burger__line {
	display: block;
	width: 25px;
	height: 3px;
	background-color: var(--color-primary);
	margin: 5px 0;
	transition: transform var(--transition-duration) ease,
		opacity var(--transition-duration) ease;
}

/* Mobile Menu Styles */
@media (max-width: 992px) {
	.header__nav {
		position: fixed;
		top: 0;
		right: -100%;
		width: 300px;
		height: 100vh;
		background-color: var(--color-white);
		box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
		padding-top: calc(var(--header-height) + 40px);
		transition: right var(--transition-duration) ease-in-out;
	}

	.header__nav.is-active {
		right: 0;
	}

	.header__nav-list {
		flex-direction: column;
		align-items: center;
		gap: 25px;
	}

	.header__nav-link {
		font-size: 20px;
	}

	.burger {
		display: block;
	}

	.burger.is-active .burger__line:nth-child(1) {
		transform: translateY(8px) rotate(45deg);
	}
	.burger.is-active .burger__line:nth-child(2) {
		opacity: 0;
	}
	.burger.is-active .burger__line:nth-child(3) {
		transform: translateY(-8px) rotate(-45deg);
	}

	body.no-scroll {
		overflow: hidden;
	}
}

/* Main Content Padding */
.main {
	padding-top: var(--header-height);
}

/* STAGE 2: FOOTER */

.footer {
	background-color: var(--color-primary);
	color: var(--color-white);
	padding: 60px 0;
}

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

.footer__column--about {
	grid-column: span 1;
}

.footer .logo__text--footer,
.footer a:not(.logo) {
	color: var(--color-white);
}

.footer .logo:hover .logo__text--footer {
	color: var(--color-white);
}

.footer__copyright {
	margin-top: 20px;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.7);
}

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

.footer__list li {
	margin-bottom: 10px;
}

.footer__link {
	color: rgba(255, 255, 255, 0.8);
	transition: color var(--transition-duration) ease,
		padding-left var(--transition-duration) ease;
}

.footer__link:hover {
	color: var(--color-accent);
	padding-left: 5px;
}

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

.footer__list--contacts li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
}

.footer__icon {
	flex-shrink: 0;
	margin-top: 3px;
	width: 18px;
	height: 18px;
	color: var(--color-accent);
}

.footer__text {
	color: rgba(255, 255, 255, 0.8);
}

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

@media (max-width: 576px) {
	.footer__container {
		grid-template-columns: 1fr;
		text-align: center;
	}
	.footer__list--contacts li {
		justify-content: center;
		text-align: left;
	}
}

/* STAGE 3: HERO SECTION */

.hero {
	padding: 80px 0;
	overflow-x: hidden; /* Предотвращает горизонтальный скролл из-за анимаций */
}

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

@media (min-width: 992px) {
	.hero__container {
		grid-template-columns: 1fr 1fr;
		gap: 60px;
	}
}

.hero__content {
	text-align: center;
}

@media (min-width: 992px) {
	.hero__content {
		text-align: left;
	}
}

.hero__title {
	font-size: 1.5rem;
	font-weight: 700;
	margin-bottom: 20px;
}

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

.hero__title--accent {
	color: var(--color-accent);
}

.hero__subtitle {
	font-size: 18px;
	color: var(--color-text-light);
	margin-bottom: 30px;
	max-width: 500px;
	margin-left: auto;
	margin-right: auto;
}

@media (min-width: 992px) {
	.hero__subtitle {
		margin-left: 0;
		margin-right: 0;
	}
}

.button {
	display: inline-block;
	background-color: var(--color-accent);
	color: var(--color-white);
	padding: 15px 35px;
	border-radius: var(--border-radius);
	font-family: var(--font-family-headings);
	font-weight: 600;
	font-size: 16px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	border: 2px solid transparent;
	transition: all var(--transition-duration) ease;
	cursor: pointer;
}

.button:hover {
	background-color: var(--color-white);
	color: var(--color-accent);
	border-color: var(--color-accent);
	transform: translateY(-3px);
	box-shadow: 0 4px 15px rgba(0, 194, 255, 0.3);
}

.hero__visual {
	position: relative;
}

.hero__image {
	width: 100%;
	border-radius: var(--border-radius);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* STAGE 3.1: FEATURES SECTION */

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

/* Reusable Section Header */
.section-header {
	text-align: center;
	max-width: 700px;
	margin: 0 auto 50px;
}

.section-header__title {
	font-size: 32px;
	font-weight: 700;
	margin-bottom: 15px;
}

@media (min-width: 768px) {
	.section-header__title {
		font-size: 38px;
	}
}

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

/* Features Grid */
.features__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 30px;
}

@media (min-width: 768px) {
	.features__grid {
		grid-template-columns: repeat(3, 1fr);
	}
}

/* Feature Card */
.feature-card {
	background-color: var(--color-background);
	padding: 35px;
	border-radius: var(--border-radius);
	text-align: center;
	border: 1px solid #e0e7ff;
	transition: transform var(--transition-duration) ease,
		box-shadow var(--transition-duration) ease;
}

.feature-card:hover {
	transform: translateY(-8px);
	box-shadow: 0 10px 30px rgba(26, 42, 76, 0.1);
}

.feature-card__icon-wrapper {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	width: 70px;
	height: 70px;
	border-radius: 50%;
	background-color: var(--color-accent);
	color: var(--color-white);
	margin-bottom: 25px;
}

.feature-card__icon {
	width: 32px;
	height: 32px;
}

.feature-card__title {
	font-size: 22px;
	font-weight: 600;
	margin-bottom: 15px;
}

.feature-card__description {
	color: var(--color-text-light);
	line-height: 1.6;
}

/* STAGE 3.2: EXAMPLES (TABS) SECTION */

.examples {
	padding: 80px 0;
}

.tabs-wrapper {
	max-width: 1000px;
	margin: 0 auto;
}

.tabs__controls {
	display: flex;
	justify-content: center;
	gap: 15px;
	margin-bottom: 40px;
	flex-wrap: wrap;
}

.tabs__control {
	padding: 12px 25px;
	font-family: var(--font-family-headings);
	font-size: 16px;
	font-weight: 600;
	color: var(--color-text-light);
	background-color: var(--color-white);
	border: 1px solid #ddd;
	border-radius: var(--border-radius);
	cursor: pointer;
	transition: all var(--transition-duration) ease;
}

.tabs__control:hover {
	background-color: #e9ecef;
	color: var(--color-primary);
}

.tabs__control.is-active {
	background-color: var(--color-accent);
	color: var(--color-white);
	border-color: var(--color-accent);
	box-shadow: 0 4px 15px rgba(0, 194, 255, 0.3);
}

.tabs__content-wrapper {
	position: relative;
}

.tabs__content {
	display: none;
	grid-template-columns: 1fr;
	gap: 30px;
	align-items: center;
	background-color: var(--color-white);
	padding: 30px;
	border-radius: var(--border-radius);
	animation: fadeIn 0.5s ease;
}

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

.tabs__content.is-active {
	display: grid;
}

@media (min-width: 768px) {
	.tabs__content {
		grid-template-columns: 1fr 1.2fr;
		gap: 40px;
		padding: 40px;
	}
}

.tabs__content-image img {
	width: 100%;
	border-radius: var(--border-radius);
}

.tabs__content-text h3 {
	font-size: 24px;
	font-weight: 600;
	margin-bottom: 15px;
}

.tabs__content-text p {
	color: var(--color-text-light);
	margin-bottom: 25px;
}

.tabs__content-text ul {
	list-style: none;
	padding: 0;
}

.tabs__content-text ul li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	margin-bottom: 10px;
}

.tabs__list-icon {
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	color: var(--color-accent);
	margin-top: 2px;
}

/* STAGE 3.3: START SECTION */

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

.start__steps-wrapper {
	display: grid;
	grid-template-columns: 1fr;
	gap: 40px;
	position: relative;
}

@media (min-width: 768px) {
	.start__steps-wrapper {
		grid-template-columns: repeat(3, 1fr);
	}

	/* Connecting line */
	.start__steps-wrapper::before {
		content: '';
		position: absolute;
		top: 45px; /* Aligns with the middle of the icon wrapper */
		left: 15%;
		right: 15%;
		height: 2px;
		background-image: linear-gradient(
			to right,
			var(--color-accent) 50%,
			transparent 50%
		);
		background-size: 10px 2px;
		z-index: 0;
	}
}

.step {
	text-align: center;
	position: relative;
	z-index: 1;
}

.step__icon-wrapper {
	position: relative;
	display: inline-flex;
	justify-content: center;
	align-items: center;
	width: 90px;
	height: 90px;
	border-radius: 50%;
	background-color: var(--color-white);
	border: 2px solid var(--color-accent);
	margin-bottom: 25px;
}

.step__icon {
	width: 40px;
	height: 40px;
	color: var(--color-accent);
}

.step__number {
	position: absolute;
	top: -10px;
	right: -10px;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 30px;
	height: 30px;
	border-radius: 50%;
	background-color: var(--color-primary);
	color: var(--color-white);
	font-family: var(--font-family-headings);
	font-weight: 700;
	font-size: 14px;
}

.step__title {
	font-size: 22px;
	font-weight: 600;
	margin-bottom: 10px;
}

.step__description {
	color: var(--color-text-light);
	max-width: 300px;
	margin: 0 auto;
}

/* Hide line on mobile */
@media (max-width: 767px) {
	.start__steps-wrapper::before {
		display: none;
	}
}

/* STAGE 3.4: CASES SECTION */

.cases {
	padding: 80px 0;
}

.cases__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 30px;
	max-width: 900px;
	margin: 0 auto;
}

@media (min-width: 768px) {
	.cases__grid {
		grid-template-columns: 1fr 1fr;
	}
}

.case-card {
	background-color: var(--color-white);
	padding: 30px;
	border-radius: var(--border-radius);
	box-shadow: 0 5px 25px rgba(0, 0, 0, 0.07);
	display: flex;
	flex-direction: column;
}

.case-card__header {
	display: flex;
	align-items: center;
	gap: 15px;
	margin-bottom: 20px;
}

.case-card__avatar {
	width: 60px;
	height: 60px;
	border-radius: 50%;
	object-fit: cover;
}

.case-card__name {
	font-family: var(--font-family-headings);
	font-weight: 600;
	color: var(--color-primary);
	margin-bottom: 5px;
}

.case-card__rating {
	display: flex;
	gap: 4px;
}

.case-card__star--filled {
	width: 16px;
	height: 16px;
	color: #ffc107;
	fill: #ffc107;
}

.case-card__quote {
	color: var(--color-text-light);
	font-style: italic;
	line-height: 1.7;
	border-left: 3px solid var(--color-accent);
	padding-left: 20px;
	margin-top: auto; /* Pushes quote down if cards have different heights */
}

/* STAGE 4: CONTACT SECTION */

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

.contact__wrapper {
	max-width: 600px;
	margin: 0 auto;
	background-color: #fff;
	padding: 40px;
	border-radius: var(--border-radius);
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.contact-form {
	display: flex;
	flex-direction: column;
	gap: 25px;
}

.contact-form__group {
	position: relative;
}

.contact-form__input {
	width: 100%;
	padding: 15px;
	font-size: 16px;
	font-family: var(--font-family-body);
	border: 1px solid #ccc;
	border-radius: var(--border-radius);
	transition: border-color var(--transition-duration) ease;
}

.contact-form__input:focus {
	outline: none;
	border-color: var(--color-accent);
}

/* Floating label effect */
.contact-form__label {
	position: absolute;
	left: 15px;
	top: 16px;
	color: var(--color-text-light);
	background-color: var(--color-white);
	padding: 0 5px;
	transition: all var(--transition-duration) ease;
	pointer-events: none;
}

.contact-form__input:focus + .contact-form__label,
.contact-form__input:not(:placeholder-shown) + .contact-form__label {
	top: -10px;
	left: 10px;
	font-size: 12px;
	color: var(--color-accent);
}

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

.contact-form__checkbox {
	width: 1.2em;
	height: 1.2em;
	accent-color: var(--color-accent);
}

.contact-form__checkbox-label {
	font-size: 14px;
	color: var(--color-text-light);
}

.contact-form__checkbox-label a {
	text-decoration: underline;
}

.contact-form__button {
	width: 100%;
	padding: 18px;
	font-size: 18px;
}
.contact-form__button:disabled {
	background-color: #ccc;
	cursor: not-allowed;
	box-shadow: none;
	transform: none;
}

/* Form message styling */
.form-message {
	margin-top: 20px;
	padding: 15px;
	border-radius: var(--border-radius);
	text-align: center;
	font-weight: 500;
	display: none; /* Hidden by default */
}
.form-message--success {
	background-color: #d1e7dd;
	color: #0f5132;
	display: block;
}
.form-message--error {
	background-color: #f8d7da;
	color: #842029;
	display: block;
}

/* STAGE 5.1: COOKIE POP-UP */

.cookie-popup {
	position: fixed;
	bottom: -100%; /* Initially hidden */
	left: 0;
	width: 100%;
	background-color: rgba(26, 42, 76, 0.95);
	color: var(--color-white);
	padding: 20px;
	box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
	z-index: 2000;
	transition: bottom 0.5s ease-in-out;
	backdrop-filter: blur(5px);
}

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

.cookie-popup__content {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
	gap: 15px;
	max-width: 1200px;
	margin: 0 auto;
}

@media (min-width: 768px) {
	.cookie-popup__content {
		flex-direction: row;
	}
}

.cookie-popup__text {
	text-align: center;
}

@media (min-width: 768px) {
	.cookie-popup__text {
		text-align: left;
	}
}

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

.cookie-popup__button {
	flex-shrink: 0;
	padding: 10px 25px;
	background-color: var(--color-accent);
}

.cookie-popup__button:hover {
	background-color: var(--color-white);
	color: var(--color-accent);
	border-color: var(--color-accent);
}

/* STAGE 5.2: POLICY PAGES STYLES */

.pages {
	padding: 120px 0;
	background-color: var(--color-white);
	min-height: calc(
		100vh - var(--header-height) - 255px
	); /* 255px is approx footer height */
}

.pages .container {
	max-width: 800px; /* Limits line length for better readability */
}

.pages h1 {
	font-size: 1.5rem;
	font-weight: 700;
	margin-bottom: 30px;
	border-bottom: 1px solid #eee;
	padding-bottom: 15px;
}

.pages h2 {
	font-size: 1.5rem;
	font-weight: 600;
	margin-top: 40px;
	margin-bottom: 15px;
}

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

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

.pages li {
	margin-bottom: 10px;
	color: var(--color-text-light);
	line-height: 1.8;
}

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

.pages a {
	color: var(--color-accent);
	text-decoration: underline;
	font-weight: 500;
}

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