:root {
	--color-background: #f7f8fb;
	--color-surface: #ffffff;
	--color-surface-alt: #eef2f7;
	--color-text: #1e2430;
	--color-text-muted: #5f6b7a;
	--color-border: #d9e1ec;
	--color-primary: #0d6efd;
	--color-primary-dark: #0a58ca;
	--color-accent: #17a2b8;
	--color-dark: #101622;
	--color-white: #ffffff;
	--shadow-sm: 0 8px 20px rgba(16, 22, 34, 0.06);
	--shadow-md: 0 14px 32px rgba(16, 22, 34, 0.10);
	--shadow-lg: 0 18px 40px rgba(16, 22, 34, 0.14);
	--radius-sm: 10px;
	--radius-md: 16px;
	--radius-lg: 24px;
	--radius-pill: 999px;
	--header-height: 84px;
	--container-width: 1200px;
	--transition: 0.3s ease;
}

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

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: "Roboto", sans-serif;
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-text);
	background-color: var(--color-background);
	text-align: justify;
}

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

a {
	color: inherit;
	text-decoration: none;
}

button,
input,
textarea {
	font: inherit;
}

button {
	border: none;
	background: none;
	cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin: 0;
	font-family: "Poppins", sans-serif;
	line-height: 1.2;
	text-align: center;
}

p,
ul,
ol {
	margin: 0;
}

.container {
	width: min(var(--container-width), calc(100% - 2rem));
	margin: 0 auto;
}

.section {
	padding: 100px 0;
}

.section--alt {
	background-color: var(--color-surface-alt);
}

.section-heading {
	margin-bottom: 48px;
	text-align: center;
}

.section-heading__eyebrow {
	margin-bottom: 10px;
	font-size: 1.1rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-primary);
}

.section-heading__title {
	font-size: clamp(2rem, 4vw, 2.75rem);
	color: var(--color-dark);
}

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 12px 22px;
	border: 1px solid transparent;
	border-radius: var(--radius-pill);
	font-weight: 700;
	transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}

.button:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-md);
}

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

.button--primary:hover {
	background-color: var(--color-primary-dark);
}

.button--secondary {
	color: var(--color-white);
	background-color: rgba(255, 255, 255, 0.18);
	border-color: rgba(255, 255, 255, 0.25);
	backdrop-filter: blur(10px);
}

.button--secondary:hover {
	background-color: rgba(255, 255, 255, 0.28);
}

.button--ghost {
	color: var(--color-primary);
	background-color: transparent;
	border-color: var(--color-primary);
}

.button--ghost:hover {
	color: var(--color-white);
	background-color: var(--color-primary);
}

.site-header {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 1000;
	width: 100%;
	background-color: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(14px);
	border-bottom: 1px solid rgba(217, 225, 236, 0.7);
}

.navbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: var(--header-height);
	gap: 24px;
}

.navbar__brand {
	font-family: "Poppins", sans-serif;
	font-size: 1.2rem;
	font-weight: 700;
	color: var(--color-dark);
	white-space: nowrap;
}

.navbar__menu {
	display: flex;
	align-items: center;
	gap: 28px;
	list-style: none;
	padding: 0;
	margin: 0;
}

.navbar__item {
	display: flex;
	align-items: center;
}

.navbar__link {
	position: relative;
	font-weight: 500;
	color: var(--color-text);
	transition: color var(--transition);
}

.navbar__link::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: -6px;
	width: 100%;
	height: 2px;
	transform: scaleX(0);
	transform-origin: left;
	background-color: var(--color-primary);
	transition: transform var(--transition);
}

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

.navbar__link:hover::after,
.navbar__link.is-active::after {
	transform: scaleX(1);
}

.navbar__toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	border-radius: 10px;
}

.navbar__toggle-line {
	display: block;
	width: 24px;
	height: 2px;
	margin: 0 auto;
	background-color: var(--color-dark);
	transition: transform var(--transition), opacity var(--transition);
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(2) {
	opacity: 0;
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.hero {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 100vh;
	padding-top: var(--header-height);
	background-image: url("../assets/images/ui/hero-background.jpg");
	background-position: center;
	background-size: cover;
	color: var(--color-white);
}

.hero__overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(135deg, rgba(10, 18, 33, 0.84), rgba(13, 110, 253, 0.40));
}

.hero__content {
	position: relative;
	z-index: 1;
	max-width: 900px;
	text-align: center;
}

.hero__content,
.hero__eyebrow,
.hero__title,
.hero__description,
.project-hero__content,
.project-hero__eyebrow,
.project-hero__title,
.project-hero__description,
.section-heading,
.section-heading__title,
.section-heading__eyebrow,
.site-footer__text {
	text-align: center;
}

.hero__eyebrow {
	margin-bottom: 16px;
	font-size: 1.1rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.82);
}

.hero__title {
	font-size: clamp(2.4rem, 5vw, 4.25rem);
	margin-bottom: 20px;
}

.hero__description {
	max-width: 760px;
	margin: 0 auto 32px;
	font-size: 1.1rem;
	color: rgba(255, 255, 255, 0.9);
}

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

.about__grid,
.contact__grid {
	display: grid;
	grid-template-columns: 1.4fr 1fr;
	gap: 32px;
	align-items: start;
}

.about__subtitle {
	margin-bottom: 18px;
	font-size: 1.75rem;
	color: var(--color-dark);
}

.about__text {
	margin-bottom: 18px;
	color: var(--color-text-muted);
	text-align: justify;
}

.about__highlights {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
	margin-top: 28px;
}

.about__highlights,
.about__highlights * {
	text-align: left;
}

.info-card,
.skills-panel,
.contact-form,
.project-card,
.project-content-card,
.empty-state {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-sm);
}

.info-card {
	padding: 20px;
}

.info-card__title {
	margin-bottom: 10px;
	font-size: 1rem;
	color: var(--color-dark);
}

.info-card__text {
	font-size: 0.95rem;
	color: var(--color-text-muted);
}

.skills-panel {
	padding: 28px;
}

.skills-panel__title {
	margin-bottom: 24px;
	font-size: 1.5rem;
	color: var(--color-dark);
}

.skills-group + .skills-group {
	margin-top: 24px;
}

.skills-group__title {
	margin-bottom: 12px;
	font-size: 1rem;
	color: var(--color-primary);
	text-align: left;
}

.tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.tag {
	display: inline-flex;
	align-items: center;
	padding: 8px 14px;
	border-radius: var(--radius-pill);
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--color-primary);
	background-color: rgba(13, 110, 253, 0.10);
	border: 1px solid rgba(13, 110, 253, 0.15);
}

.project-category + .project-category {
	margin-top: 56px;
}

.project-category__header {
	margin-bottom: 26px;
}

.project-category__title {
	margin-bottom: 8px;
	font-size: 1.6rem;
	color: var(--color-dark);
}

.project-category__description {
	color: var(--color-text-muted);
}

.projects-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 28px;
}

.project-card {
	display: flex;
	flex-direction: column;
	overflow: hidden;
	height: 100%;
	transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
	transform: translateY(-6px);
	box-shadow: var(--shadow-lg);
}

.project-card__image {
	width: 100%;
	height: 220px;
	object-fit: cover;
	border-bottom: 1px solid var(--color-border);
}

.project-card__body {
	display: flex;
	flex-direction: column;
	flex: 1;
	padding: 22px;
}

.project-card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 16px;
}

.project-badge {
	display: inline-flex;
	align-items: center;
	padding: 6px 10px;
	border-radius: var(--radius-pill);
	font-size: 0.78rem;
	font-weight: 700;
	color: var(--color-text);
	background-color: var(--color-surface-alt);
	border: 1px solid var(--color-border);
}

.project-card__title {
	margin-bottom: 14px;
	font-size: 1.4rem;
	color: var(--color-dark);
}

.project-card__text {
	flex: 1;
	margin-bottom: 20px;
	color: var(--color-text-muted);
	text-align: justify;
}

.contact__intro {
	padding: 8px 0;
}

.contact__text {
	margin-bottom: 24px;
	color: var(--color-text-muted);
	text-align: justify;
}

.contact__links {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
}

.social-link {
	display: inline-flex;
	align-items: center;
	font-weight: 700;
	color: var(--color-primary);
	transition: color var(--transition);
}

.social-link:hover {
	color: var(--color-primary-dark);
}

.contact-form {
	padding: 28px;
}

.form-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	column-gap: 16px;
	row-gap: 18px;
	align-items: start;
}

.form-field {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

.form-field--full {
	grid-column: 1 / -1;
}

.form-field label {
	margin-bottom: 8px;
	font-weight: 700;
	color: var(--color-dark);
	line-height: 1.3;
}

.form-field input,
.form-field textarea {
	width: 100%;
	margin: 0;
	padding: 14px 16px;
	border: 1px solid var(--color-border);
	border-radius: 12px;
	background-color: var(--color-white);
	color: var(--color-text);
	transition: border-color var(--transition), box-shadow var(--transition);
	appearance: none;
}

.form-field input {
	height: 52px;
}

.form-field textarea {
	min-height: 160px;
	resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.12);
}

.form-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 22px;
}

.back-to-top {
	position: fixed;
	right: 24px;
	bottom: 24px;
	z-index: 999;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	border-radius: 50%;
	color: var(--color-white);
	background-color: var(--color-primary);
	box-shadow: var(--shadow-md);
	opacity: 0;
	visibility: hidden;
	transform: translateY(10px);
	transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background-color var(--transition);
}

.back-to-top.is-visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.back-to-top:hover {
	background-color: var(--color-primary-dark);
}

.site-footer {
	padding: 26px 0;
	color: var(--color-white);
	background-color: var(--color-dark);
}

.site-footer__text {
	text-align: center;
	color: rgba(255, 255, 255, 0.8);
}

.project-page {
	padding-top: calc(var(--header-height) + 36px);
}

.project-hero {
	padding: 48px 0 28px;
}

.project-hero__content {
	max-width: 900px;
	margin: 0 auto;
	text-align: center;
}

.project-hero__eyebrow {
	margin-bottom: 12px;
	font-size: 1.1rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-primary);
}

.project-hero__title {
	margin-bottom: 16px;
	font-size: clamp(2.2rem, 5vw, 3.5rem);
	color: var(--color-dark);
}

.project-hero__meta {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 10px;
}

.project-cta {
	margin-top: 20px;
}

.project-cta__button {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-weight: 600;
}

.project-cta__button::after {
	content: "↗";
	font-size: 0.9rem;
	transition: transform 0.2s ease;
}

.project-cta__button:hover::after {
	transform: translateX(3px);
}

.project-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 28px;
	padding-bottom: 90px;
}

.project-content-card {
	padding: 28px;
}

.project-section + .project-section {
	margin-top: 38px;
	padding-top: 38px;
	border-top: 1px solid var(--color-border);
}

.project-section__title {
	margin-bottom: 16px;
	font-size: 1.7rem;
	color: var(--color-dark);
}

.project-subsection + .project-subsection {
	margin-top: 22px;
}

.project-subsection__title {
	margin-bottom: 12px;
	font-size: 1.2rem;
	color: var(--color-accent);
}

.project-text {
	color: var(--color-text-muted);
	text-align: justify;
}

p,
.project-text,
.about__text,
.contact__text,
.project-card__text {
	text-align: justify;
	text-justify: inter-word;
}

.project-list {
	padding-left: 22px;
	margin-top: 14px;
	color: var(--color-text-muted);
	text-align: justify;
}

.project-list li + li {
	margin-top: 10px;
}

.project-gallery {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 18px;
	margin-top: 20px;
}

.project-gallery__link {
	display: block;
	overflow: hidden;
	border-radius: 14px;
	border: 1px solid var(--color-border);
	background-color: var(--color-surface-alt);
}

.project-gallery__image {
	width: 100%;
	height: 100%;
	min-height: 220px;
	object-fit: cover;
	transition: transform var(--transition), opacity var(--transition);
}

.project-gallery__link:hover .project-gallery__image {
	opacity: 0.9;
	transform: scale(1.04);
}

.project-table {
	width: 100%;
	margin-top: 18px;
	border-collapse: collapse;
	overflow: hidden;
	border-radius: 14px;
}

.project-table th,
.project-table td {
	padding: 14px 16px;
	text-align: left;
	border: 1px solid var(--color-border);
}

.project-table th {
	background-color: var(--color-surface-alt);
	color: var(--color-dark);
}

.project-table td {
	color: var(--color-text-muted);
	background-color: var(--color-white);
}

.project-navigation {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 32px;
}

@media (max-width: 1100px) {
	.projects-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.about__grid,
	.contact__grid {
		grid-template-columns: 1fr;
	}

	.about__highlights {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 768px) {
	.section {
		padding: 84px 0;
	}

	.navbar__toggle {
		display: inline-flex;
	}

	.navbar__menu {
		position: fixed;
		top: var(--header-height);
		right: 0;
		flex-direction: column;
		align-items: flex-start;
		width: min(82vw, 320px);
		height: calc(100vh - var(--header-height));
		padding: 28px 24px;
		background-color: rgba(255, 255, 255, 0.98);
		border-left: 1px solid var(--color-border);
		box-shadow: -10px 0 30px rgba(16, 22, 34, 0.08);
		transform: translateX(100%);
		transition: transform var(--transition);
	}

	.navbar__menu.is-open {
		transform: translateX(0);
	}

    .projects-grid,
    .project-gallery,
    .form-grid {
        grid-template-columns: 1fr;
    }

	.hero__actions,
	.form-actions,
	.project-navigation {
		flex-direction: column;
	}

	.project-card__image {
		height: 210px;
	}
}

@media (max-width: 520px) {
	.container {
		width: min(100% - 1.25rem, var(--container-width));
	}

	.hero__description,
	.project-hero__description,
	.project-text,
	.project-card__text,
	.about__text,
	.contact__text {
		font-size: 0.98rem;
	}

	.project-content-card,
	.skills-panel,
	.contact-form {
		padding: 22px;
	}
}