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

:root {
  --bg: #0b0b0b;
  --surface: #121212;
  --surface-hover: #1a1a1a;
  --border: #1e1e1e;
  --border-hover: #2a2a2a;
  --text: #f0eee9;
  --text-secondary: #8a8a84;
  --text-muted: #5c5c58;
  --accent: #d97706;
  --accent-hover: #f59e0b;
  --accent-dim: rgba(217, 119, 6, 0.12);
  --accent-glow: rgba(217, 119, 6, 0.08);
  --font-display: 'Unbounded', sans-serif;
  --font-body: 'Sora', sans-serif;
  --max-width: 1100px;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: #0b0b0b;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== NOISE OVERLAY ===== */
.noise {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ===== SECTIONS ===== */
.section {
  padding: 7rem 0;
}

.section__header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.section__number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.section__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.subsection__header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
  margin-top: 4rem;
}

.subsection__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.8rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-body);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--accent);
  color: #0b0b0b;
}

.btn--primary:hover {
  background: var(--accent-hover);
  color: #0b0b0b;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(217, 119, 6, 0.25);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.btn--sm {
  padding: 0.5rem 1.3rem;
  font-size: 0.8rem;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(11, 11, 11, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
}

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

.nav__list {
  display: flex;
  gap: 2.2rem;
}

.nav__link {
  font-size: 0.82rem;
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav__link:hover::after {
  width: 100%;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: none;
  border: 1px solid var(--border);
  border-radius: 100px;
  cursor: pointer;
  padding: 0;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  transition: border-color var(--transition);
  z-index: 101;
}

.lang-toggle:hover {
  border-color: var(--accent);
}

.lang-toggle__option {
  padding: 0.35rem 0.6rem;
  transition: all var(--transition);
}

.lang-toggle__option.active {
  background: var(--accent);
  color: #0b0b0b;
}

.lang-toggle__option:not(.active) {
  color: var(--text-muted);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 8rem 0 4rem;
  overflow: hidden;
}

.hero__bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.03;
}

.hero__shape--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  top: -200px;
  right: -200px;
}

.hero__shape--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
}

.hero__shape--3 {
  width: 200px;
  height: 200px;
  border: 1px solid var(--border-hover);
  top: 50%;
  right: 10%;
  border-radius: 0;
  transform: rotate(45deg);
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__tag {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.hero__title {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 1.5rem;
  max-width: 520px;
}

.hero__desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ===== ABOUT ===== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 3rem;
  align-items: start;
}

.about__text p {
  margin-bottom: 1.2rem;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__stat {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat__block {
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.stat__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ===== PROJECTS ===== */
.project.featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
  padding: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  position: relative;
}

.project.featured:hover {
  border-color: var(--border-hover);
}

.project__image {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--border);
  aspect-ratio: 16/10;
}

.project__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0b0b0b;
}

.project__image-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(217, 119, 6, 0.06));
  pointer-events: none;
}

.project__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.project__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.project__type {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.project__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.3rem;
}

.project__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.project__tech li {
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.25rem 0.8rem;
  border-radius: 100px;
  border: 1px solid rgba(217, 119, 6, 0.15);
}

/* Project Cards */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

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

.project-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--border);
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-card__image img {
  transform: scale(1.06);
}

.project-card__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--surface) 0%, var(--border) 100%);
}

.placeholder-icon {
  font-size: 2rem;
  opacity: 0.3;
}

.project-card__body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.project-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1rem;
  flex: 1;
}

.project-card__body .project__tech {
  margin-bottom: 0;
}

.project-card__body .btn {
  margin-top: 1.2rem;
  align-self: flex-start;
}

/* ===== SKILLS ===== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.skill-category {
  padding: 1.5rem;
}

.skill-category__title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}

.skill-category__list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  position: relative;
  padding-left: 1.1rem;
}

.skill-category__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
}

/* ===== EDUCATION ===== */
.education__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.edu-item {
  padding: 1.5rem;
}

.edu-item__icon {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  opacity: 0.7;
}

.edu-item__title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.edu-item__meta {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.edu-item__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Languages */
.languages__grid {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.lang-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  min-width: 150px;
  padding: 1.5rem 1rem;
  text-align: center;
}

.lang-item__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

.lang-item__level {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== CONTACT ===== */
.contact__intro {
  max-width: 500px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

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

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.contact__link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.contact__link-icon {
  font-size: 1.1rem;
  opacity: 0.7;
}

.contact__form {
  max-width: 100%;
}

.form__group {
  margin-bottom: 1.2rem;
}

.form__group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition);
}

.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form__group input::placeholder,
.form__group textarea::placeholder {
  color: var(--text-muted);
}

.form__status {
  margin-top: 1rem;
  font-size: 0.85rem;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer__tag {
  font-family: var(--font-display);
  font-size: 0.65rem !important;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* ===== REVEAL ANIMATION ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal][data-delay="100"] { transition-delay: 0.1s; }
[data-reveal][data-delay="200"] { transition-delay: 0.2s; }
[data-reveal][data-delay="300"] { transition-delay: 0.3s; }
[data-reveal][data-delay="400"] { transition-delay: 0.4s; }

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

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

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

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

  .section__title {
    font-size: 1.3rem;
  }

  .hero__name {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .hero__title {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__actions .btn {
    width: 100%;
    max-width: 240px;
  }

  .hero__shape--3 {
    display: none;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about__stat {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat__block {
    flex: 1;
    min-width: 100px;
  }

  .project.featured {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .project__title {
    font-size: 1.3rem;
  }

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

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

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

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .languages__grid {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(11, 11, 11, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
  }

  .nav.active {
    opacity: 1;
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
  }

  .nav__link {
    font-size: 1.1rem;
    font-family: var(--font-display);
  }

  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 480px) {
  .hero__name {
    font-size: 1.8rem;
  }

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

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

  .about__stat {
    flex-direction: column;
  }

  .languages__grid {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
    gap: 0.3rem;
  }
}

/* ===== SCROLL MARGIN ===== */
#about,
#projects,
#skills,
#education,
#contact {
  scroll-margin-top: 5rem;
}