/* ============================================
   DESIGN SYSTEM — Warp-Inspired Warm Dark
   ============================================ */

:root {
  --c-parchment: #faf9f6;
  --c-ash: #afaeac;
  --c-stone: #868584;
  --c-purple-gray: #666469;
  --c-earth: #353534;
  --c-charcoal: #454545;
  --c-bg: #141413;
  --c-bg-warm: #1a1918;
  --c-bg-surface: #1e1d1c;

  --border-mist: rgba(226, 226, 226, 0.12);
  --border-mist-strong: rgba(226, 226, 226, 0.25);
  --veil: rgba(255, 255, 255, 0.04);
  --veil-hover: rgba(255, 255, 255, 0.07);

  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Geist Mono', 'SF Mono', 'Fira Code', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-pill: 50px;

  --section-pad: clamp(80px, 10vw, 120px);
  --container-max: 1200px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.18px;
  color: var(--c-ash);
  background-color: var(--c-bg);
  overflow-x: hidden;
}

::selection {
  background: rgba(250, 249, 246, 0.15);
  color: var(--c-parchment);
}

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

ul {
  list-style: none;
}

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

/* ============================================
   GRAIN OVERLAY
   ============================================ */

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
}

.section {
  padding: var(--section-pad) 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

.section__label {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--c-stone);
  margin-bottom: 24px;
}

.section__heading {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.56px;
  color: var(--c-parchment);
  margin-bottom: 32px;
}

.body-text {
  font-size: 18px;
  line-height: 1.6;
  color: var(--c-ash);
  letter-spacing: -0.1px;
  max-width: 640px;
}

.body-text + .body-text {
  margin-top: 16px;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  border: none;
  outline: none;
  text-decoration: none;
}

.btn--pill {
  padding: 12px 28px;
  background: var(--c-earth);
  color: var(--c-ash);
  border-radius: var(--radius-pill);
}

.btn--pill:hover {
  background: var(--c-charcoal);
  color: var(--c-parchment);
}

.btn--ghost {
  padding: 12px 4px;
  background: none;
  color: var(--c-stone);
  position: relative;
}

.btn--ghost::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 4px;
  right: 4px;
  height: 1px;
  background: var(--c-stone);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}

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

.btn--ghost:hover {
  color: var(--c-parchment);
}

/* ============================================
   LINKS
   ============================================ */

.link {
  color: var(--c-purple-gray);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(102, 100, 105, 0.4);
  transition: all 0.3s var(--ease-out);
  font-size: 15px;
}

.link:hover {
  color: var(--c-parchment);
  text-decoration-color: var(--c-parchment);
}

/* ============================================
   TAG
   ============================================ */

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: var(--c-stone);
  background: var(--veil);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-mist);
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 clamp(24px, 5vw, 64px);
  transition: background 0.4s var(--ease-out);
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(20, 20, 19, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  z-index: -1;
}

.nav--scrolled::before {
  opacity: 1;
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__brand {
  font-size: 16px;
  font-weight: 500;
  color: var(--c-parchment);
  letter-spacing: -0.2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-size: 15px;
  font-weight: 400;
  color: var(--c-stone);
  transition: color 0.3s var(--ease-out);
  letter-spacing: 0;
}

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

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--c-parchment);
  transition: all 0.3s var(--ease-out);
  transform-origin: center;
}

.nav__toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.nav__toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(80px, 10vh, 140px);
  position: relative;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  opacity: 0.4;
  transform: scale(1.12);
  transition: transform 0.1s linear;
}

.hero__bg-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(20, 20, 19, 0.3) 0%,
    rgba(20, 20, 19, 0.6) 40%,
    rgba(20, 20, 19, 0.92) 75%,
    rgba(20, 20, 19, 1) 100%
  );
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__label {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--c-stone);
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(42px, 8vw, 80px);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -2.4px;
  color: var(--c-parchment);
  margin-bottom: 40px;
  max-width: 900px;
}

.hero__title span {
  display: inline-block;
}

.hero__title--muted {
  color: var(--c-stone);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 32px;
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__label {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero__title {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.hero__actions {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

/* ============================================
   ABOUT
   ============================================ */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

.about__text .section__heading {
  margin-bottom: 24px;
}

.about__stats {
  display: flex;
  gap: 48px;
  padding-top: 16px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat__number {
  font-size: 48px;
  font-weight: 400;
  color: var(--c-parchment);
  letter-spacing: -1px;
  line-height: 1;
}

.stat__label {
  font-size: 13px;
  color: var(--c-stone);
  letter-spacing: 0.5px;
}

/* Timeline */

.timeline {
  border-top: 1px solid var(--border-mist);
  padding-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.timeline__item {
  padding-left: 24px;
  border-left: 1px solid var(--border-mist);
  transition: border-color 0.4s var(--ease-out), padding-left 0.4s var(--ease-out);
}

.timeline__item:hover {
  border-color: var(--border-mist-strong);
  padding-left: 32px;
}

.timeline__year {
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--c-stone);
  display: block;
  margin-bottom: 8px;
}

.timeline__title {
  font-size: 22px;
  font-weight: 500;
  color: var(--c-parchment);
  line-height: 1.14;
  margin-bottom: 8px;
}

.timeline__logo {
  display: inline;
  width: 5rem;
  height: 5rem;
  object-fit: contain;
  vertical-align: middle;
  margin-left: 14px;
  opacity: 0.85;
  transition: opacity 0.3s var(--ease-out);
}

.timeline__logo--sm {
  width: 4rem;
  height: 4rem;
}

.timeline__logo--lg {
  width: 6rem;
  height: 6rem;
}

.timeline__item:hover .timeline__logo {
  opacity: 1;
}

.timeline__company {
  font-weight: 400;
  color: var(--c-stone);
}

.timeline__desc {
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-ash);
  max-width: 560px;
}

/* ============================================
   PROJECTS
   ============================================ */

.projects__grid {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-top: 48px;
}

.project-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border-mist);
  transition: background 0.4s var(--ease-out), padding-left 0.4s var(--ease-out);
}

.project-card:first-child {
  border-top: 1px solid var(--border-mist);
}

.project-card:hover {
  background: var(--veil);
  padding-left: 12px;
}

.project-card__image {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--c-bg-surface);
  border: 1px solid var(--border-mist);
  transition: border-color 0.4s var(--ease-out);
}

.project-card:hover .project-card__image {
  border-color: var(--border-mist-strong);
}

.project-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-bg-surface) 0%, rgba(250, 249, 246, 0.02) 100%);
}

.project-card__icon {
  font-family: var(--font-mono);
  font-size: 32px;
  color: var(--c-stone);
  opacity: 0.5;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-card__image img {
  transform: scale(1.04);
}

.project-card__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-card__title {
  font-size: 24px;
  font-weight: 500;
  color: var(--c-parchment);
  line-height: 1.2;
  letter-spacing: -0.24px;
}

.project-card__desc {
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-ash);
  max-width: 480px;
}

.project-card__links {
  display: flex;
  gap: 20px;
  margin-top: 4px;
}

/* ============================================
   SKILLS
   ============================================ */

.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.skill-group {
  padding: 28px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mist);
  background: transparent;
  transition: background 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}

.skill-group:hover {
  background: var(--veil);
  border-color: var(--border-mist-strong);
}

.skill-group__title {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--c-parchment);
  margin-bottom: 20px;
}

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

.skill-group__list li {
  font-size: 16px;
  color: var(--c-ash);
  line-height: 1.3;
  transition: color 0.2s var(--ease-out);
}

.skill-group:hover .skill-group__list li {
  color: var(--c-parchment);
}

/* ============================================
   CONTACT
   ============================================ */

.contact {
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: var(--border-mist);
}

.contact__content {
  max-width: 640px;
}

.contact__content .section__heading {
  margin-bottom: 16px;
}

.contact__content .body-text {
  margin-bottom: 40px;
}

.contact__actions {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.contact__socials {
  display: flex;
  gap: 24px;
}

.contact__socials .link {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
}

.contact__socials .link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-parchment);
  transition: width 0.4s var(--ease-out);
}

.contact__socials .link:hover::after {
  width: 100%;
}

/* ============================================
   PROJECTS CTA
   ============================================ */

.projects__cta {
  margin-top: 56px;
  display: flex;
  justify-content: center;
}

/* ============================================
   PAGE HEADER (projects.html)
   ============================================ */

.page-header {
  padding: 140px 0 40px;
}

.page-header__back {
  display: inline-block;
  font-size: 14px;
  margin-bottom: 40px;
}

.page-header .section__heading {
  margin-bottom: 16px;
}

.page-header .body-text {
  max-width: 520px;
}

/* ============================================
   PROJECT TILES (projects.html grid)
   ============================================ */

.all-projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.project-tile {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-mist);
  overflow: hidden;
  transition: border-color 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.project-tile:hover {
  border-color: var(--border-mist-strong);
  transform: translateY(-4px);
}

.project-tile--coming {
  opacity: 0.6;
}

.project-tile--coming:hover {
  opacity: 0.8;
}

.project-tile__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--c-bg-surface);
}

.project-tile__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-tile:hover .project-tile__image img {
  transform: scale(1.06);
}

.project-tile__image--empty {
  background: linear-gradient(135deg, var(--c-bg-surface) 0%, rgba(250, 249, 246, 0.02) 100%);
}

.project-tile__overlay {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(20, 20, 19, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-tile__number {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-ash);
}

.project-tile__content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-tile__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tile__title {
  font-size: 22px;
  font-weight: 500;
  color: var(--c-parchment);
  line-height: 1.2;
  letter-spacing: -0.22px;
}

.project-tile__desc {
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-ash);
}

.project-tile__links {
  display: flex;
  gap: 20px;
  margin-top: 4px;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: 32px 0;
}

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

.footer__copy {
  font-size: 13px;
  color: var(--c-stone);
  letter-spacing: 0.2px;
}

.footer__note {
  font-size: 12px;
  color: var(--c-stone);
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal--left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal--scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Line grow-in */
.line-grow {
  height: 1px;
  background: var(--border-mist);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.line-grow.grown {
  transform: scaleX(1);
}

/* ============================================
   RESPONSIVE — Tablet
   ============================================ */

@media (max-width: 1100px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .project-card {
    grid-template-columns: 220px 1fr;
    gap: 28px;
  }

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

/* ============================================
   RESPONSIVE — Mobile
   ============================================ */

@media (max-width: 810px) {
  .nav__links {
    position: fixed;
    inset: 0;
    background: rgba(20, 20, 19, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease-out);
    z-index: 100;
  }

  .nav__links.open {
    opacity: 1;
    pointer-events: all;
  }

  .nav__links .nav__link {
    font-size: 24px;
    color: var(--c-ash);
  }

  .nav__links .nav__link:hover {
    color: var(--c-parchment);
  }

  .nav__toggle {
    display: flex;
  }

  .hero__title {
    letter-spacing: -1.2px;
  }

  .hero__scroll-indicator {
    display: none;
  }

  .about__stats {
    flex-direction: row;
    gap: 32px;
  }

  .stat__number {
    font-size: 36px;
  }

  .project-card {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 32px 0;
  }

  .project-card__image {
    max-width: 100%;
  }

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

  .project-tile__image {
    aspect-ratio: 16 / 9;
  }

  .skills__grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .contact__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .footer__inner {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  .hero__actions {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }

  .about__stats {
    flex-direction: column;
    gap: 24px;
  }

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