/* --- Theme: dark (default) --- */
:root,
[data-theme="dark"] {
  --bg: #0e1014;
  --bg-soft: #141621;
  --text: #ffffff;
  --text-muted: #a0aec0;
  --accent: #0e93f5;
  --accent-alt: #0071eb;
  --border: #554787;
  --card-bg: #1a1c24;
  /* About footer decorative background */
  --about-footer-bg: url("../assets/images/bg-footer.png");
}

/* --- Theme: light --- */
[data-theme="light"] {
  --bg: #f7fafc;
  --bg-soft: #edf2f7;
  --text: #1a202c;
  --text-muted: #4a5568;
  --accent: #0e93f5;
  --accent-alt: #0066cc;
  --border: #554787;
  --card-bg: #ffffff;
  /* Greyish UI ink for hero/CTA borders & skills (softer than pure black) */
  --ink-grey: #6b7280;
  /* Same file as dark; blend mode makes dark-theme artwork visible on pale --bg */
  --about-footer-bg: url("../assets/images/bg-footer.png");
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

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

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

/* --- Header & theme toggle --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: flex-end;
  padding: 1rem 1.5rem;
  pointer-events: none;
}

.theme-toggle {
  pointer-events: auto;
  position: relative;
  width: 44px;
  height: 44px;
  border: 2px solid var(--border);
  background: var(--bg-soft);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: background 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  background: var(--card-bg);
}

.theme-toggle-icon {
  position: absolute;
}

.theme-toggle-icon svg {
  display: block;
}

.theme-toggle .moon {
  opacity: 1;
  color: #FFF;
}

.theme-toggle .sun {
  opacity: 0;
  color: #000;
}

[data-theme="light"] .theme-toggle .moon {
  opacity: 0;
}

[data-theme="light"] .theme-toggle .sun {
  opacity: 1;
}

@keyframes hero-mouse-float {
  0%,
 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

/* Slightly wider vertical travel for CTA cursor */
@keyframes cta-cursor-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

/* --- Hero (full-bleed backgrounds + constrained content) --- */
/* Hero vertical: viewport top → bottom of .hero__headline, x = left edge (JS) */
.hero__center-line {
  position: fixed;
  top: 0;
  left: 0;
  transform: none;
  width: 0;
  height: 0;
  border-left: 2px dashed #0071eb;
  pointer-events: none;
  z-index: 50;
}

/* Hero horizontal: bottom-left of .hero__headline → viewport right (JS) */
.hero__title-h-line {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border: none;
  border-top: 2px dashed #0071eb;
  pointer-events: none;
  z-index: 50;
}

/* About: same behavior, anchored to .cta__box top (JS) */
.about__center-line {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-left: 2px dashed #0071eb;
  pointer-events: none;
  z-index: 50;
}

.about__title-h-line {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border: none;
  border-top: 2px dashed #0071eb;
  pointer-events: none;
  z-index: 50;
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--bg);
}

.hero__backgrounds {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero__bg {
  position: absolute;
  max-width: none;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: right top;
}

/* Layer 1 — Figma Rectangle 22 (behind); export is already canvas-oriented */
.hero__bg--1 {
  right: 0;
  top: 5%;
  width: 253px;
  height: 561px;
  z-index: 0;
}

/* Layer 2 — Figma Rectangle 23 (vertical strip, bleeds above hero) */
.hero__bg--2 {
  left:0;
  top:30%;
  width:202px;
  max-height:684px;
  object-fit: contain;
  z-index: 1;
}

.hero__layout {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 6rem 1.5rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
  min-height: 100vh;
}

.hero__frame {
  border: 2px solid var(--border);
  padding: 12px;
  position: relative;
}

.hero__frame-inner {
  border: 2px solid var(--border);
  overflow: hidden;
  width: min(400px, 90vw);
  aspect-ratio: 400 / 528;
}

.hero__portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__content {
  flex: 1;
  min-width: 280px;
  max-width: 560px;
}

.hero__headline {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  border: 2px solid #0071eb;
  padding: 0;
  padding-bottom: 7px;
  margin-bottom: 16px;
  box-sizing: border-box;
  margin-top: -2px;
}

.hero__tag {
  display: inline-block;
  background: var(--accent-alt);
  color:#FFF;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  margin-bottom: 0.5rem;
  margin-top: -2px;
  line-height: 19px;
}

.hero__title {
  font-size: clamp(3rem, 8vw, 100px);
  font-weight: 600;
  line-height: 1;
  margin: 0;
  letter-spacing: 0.02em;
}

.hero__bio {
  font-size: 16px;
  color: var(--text-muted);
  margin: 0;
  max-width: 512px;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.8;
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.hero__scroll:hover,
.hero__scroll:focus-visible {
  opacity: 1;
}

.hero__scroll:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.hero__scroll img {
  width: 70px;
  height: 70px;
  pointer-events: none;
  animation: hero-mouse-float 2.8s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll img,
  .cta__cursor {
    animation: none;
  }
}

/* --- Portfolio --- */
.portfolio {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 30px 0 0 0;
  padding: 4rem 0;
  scroll-margin-top: -10px;
  background-color: var(--bg);
  background-image: url("../assets/images/bg-section-projects.png");
  background-repeat: no-repeat;
  background-position: center;
  /* Full height of this section; centered horizontally */
  background-size: 100% auto;
  overflow-x: visible;
}

.portfolio__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--card-bg);
  border: 2px solid var(--border);
  overflow: hidden;
}

.card__image-wrap {
  aspect-ratio: 440 / 300;
  background: var(--bg-soft);
  overflow: hidden;
}

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

.card__title {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  padding: 1rem 1rem 0;
  line-height: 1.3;
}

.card__desc {
  font-size: 16px;
  font-weight: 300;
  color: var(--text-muted);
  margin: 0;
  padding: 0.5rem 1rem 1.25rem;
  line-height: 1.4;
}

/* --- Process --- */
.process {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 4rem 0;
}

/* Full-bleed backdrop (edge to edge), content stays in .process__inner */
.process__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, var(--bg-soft) 30%, var(--bg-soft) 70%, transparent 100%);
}

.process__inner {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.process__title {
  font-size: clamp(2.5rem, 6vw, 100px);
  font-weight: 600;
  margin: 0 0 1rem;
}

.process__intro {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 903px;
  margin: 0 0 3rem;
  line-height: 1.5;
}

.process__diagram {
  position: relative;
  margin: 2rem 0;
  overflow: hidden;
  border-radius: 8px;
}

.process__loop {
  width: 100%;
  height: auto;
}

/* --- About + CTA --- */
.about {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 4rem 0;
  background-color: var(--bg);
  /* Footer art lives on ::before so it always respects --about-footer-bg per theme */
  isolation: isolate;
}

.about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: transparent;
  background-image: var(--about-footer-bg);
  background-repeat: no-repeat;
  background-position: right bottom;
  background-size: min(70vw, 1100px) auto;
}

/* Light theme: no decorative section backgrounds */
[data-theme="light"] .hero__backgrounds {
  display: none;
}

[data-theme="light"] .portfolio {
  background-image: none;
}

[data-theme="light"] .card {
  border-color: var(--ink-grey);
}

[data-theme="light"] .process__backdrop {
  display: none;
}

[data-theme="light"] .about::before {
  display: none;
}

/* Light theme: hide dashed guide lines (hero + about) */
[data-theme="light"] .hero__center-line,
[data-theme="light"] .hero__title-h-line,
[data-theme="light"] .about__center-line,
[data-theme="light"] .about__title-h-line {
  display: none;
}

/* Light theme: greyish borders + copy (headline, CTA, skills) */
[data-theme="light"] .hero__headline {
  border-color: var(--ink-grey);
}

[data-theme="light"] .hero__tag {
  background: var(--ink-grey);
  color: #fff;
}

[data-theme="light"] .cta__box {
  border-color: var(--ink-grey);
}

[data-theme="light"] .cta__box .boxbox {
  background: var(--ink-grey);
}

[data-theme="light"] .cta__skills {
  color: var(--ink-grey);
}

/* Mouse SVG uses fixed blue/purple fills — shift to grey in light mode */
[data-theme="light"] .hero__scroll img {
  filter: grayscale(1) brightness(0.65) contrast(1.05);
}

.about__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  position: relative;
  z-index: 1;
}

.about__title {
  font-size: clamp(2.5rem, 5vw, 100px);
  font-weight: 600;
  margin: 0 0 1.5rem;
}

.about__text {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.about__text p {
  margin: 0 0 1rem;
}

.about__text strong {
  color: var(--text);
}

.about__card {
  position: relative;
  width: 100%;
  max-width: 440px;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.about__card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 440 / 213;
  object-fit: cover;
}

.about__card-link {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0;
  background: none;
  border-radius: 0;
  line-height: 0;
}

/* External SVG <img> — force white icon, no fill box */
.about__card-link img {
  display: block;
  filter: brightness(0) invert(1);
}

.about__card-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.about__contact {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about__contact-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
  font-size: 18px;
}

.about__contact-item img {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.cta {
  position: relative;
}

.cta__box {
  border: 3px solid var(--accent);
  padding: 2rem;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative; 
  max-width: 528px;
}
.cta__box .boxbox{
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background:#0E93F5;
}
.cta__title {
  font-size: clamp(2rem, 4vw, 76px);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 2rem;
}

.cta__cursor {
  position: absolute;
  bottom: 7rem;
  left: 23rem;
  width: 60px;
  height: 60px;
  pointer-events: none;
  animation: cta-cursor-float 2.8s ease-in-out infinite;
}

/* Figma node 1:162 — four columns, space-between, 16px / 40px line-height */
.cta__skills {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0 1.25rem;
  font-size: 16px;
  font-weight: 400;
  line-height: 40px;
  color: var(--accent);
}

.cta__skills > li {
  margin: 0;
  padding: 0;
  flex: 0 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.cta__skills-line {
  display: block;
  white-space: nowrap;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  /* Drop decorative image/gradient backgrounds on tablet & phone */
  .hero__backgrounds {
    display: none;
  }

  .portfolio {
    background-image: none;
  }

  .process__backdrop {
    display: none;
  }

  .about::before {
    display: none;
  }

  .hero__layout {
    flex-direction: column;
    padding-top: 5rem;
  }

  .hero__scroll {
    position: static;
    transform: none;
    margin: 2rem auto 0;
  }

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

  .cta__box {
    min-height: 320px;
  }
}

@media (max-width: 600px) {
  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .process__intro {
    font-size: 18px;
  }

  .cta__skills {
    justify-content: flex-start;
    column-gap: 1.5rem;
    row-gap: 1.25rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .cta__skills > li {
    flex: 1 1 calc(50% - 0.75rem);
  }

  .cta__skills-line {
    white-space: normal;
  }
}