/* ============================================
   ARSH PREM — EDITORIAL B&W PORTFOLIO
   Minimalist Black & White Design System
   Inspired by Olha Lazarieva
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Manrope:wght@200;300;400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@100;200;300;400;500;600;700;800;900&display=swap');

/* === Design Tokens === */
:root {
  --white: #FAFAFA;
  --off-white: #F2F2F0;
  --light-gray: #E8E8E6;
  --mid-gray: #9A9A96;
  --dark-gray: #525250;
  --charcoal: #2A2A28;
  --near-black: #1A1A18;
  --black: #0A0A08;

  --bg: var(--off-white);
  --text: var(--black);
  --text-secondary: var(--dark-gray);
  --text-muted: var(--mid-gray);
  --border: var(--light-gray);
  --border-dark: var(--charcoal);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* === Reset === */
*,
*::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);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: var(--black);
  color: var(--white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

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

/* === Typography === */
.font-display {
  font-family: var(--font-display);
}

.font-mono {
  font-family: var(--font-mono);
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(242, 242, 240, 2.00);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

.nav.scrolled {
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 3rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 1.1;
}

.nav-logo span {
  display: block;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--near-black);
  padding: 0.4rem 0;
  position: relative;
}

.nav-link::before,
.nav-link::after {
  transition: opacity 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--black);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--black);
}

.nav-contact {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--black);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
}

.nav-contact:hover {
  opacity: 0.6;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--black);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--off-white);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--black);
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 3rem;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 3rem;
}

/* === Hero Section (Index) === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(4rem, 11vw, 11rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--black);
  position: relative;
  z-index: 2;
}

.hero-headline-row {
  display: flex;
  align-items: flex-start;
  position: relative;
}

.hero-photo-container {
  position: relative;
  z-index: 3;
  width: clamp(220px, 22vw, 340px);
  height: clamp(280px, 28vw, 430px);
  flex-shrink: 0;
  overflow: hidden;
  margin: 0 -0.5rem;
  align-self: flex-start;
  margin-top: -1rem;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(1) contrast(1.1);
  transition: filter 0.6s ease;
}

.hero-photo-container:hover .hero-photo {
  filter: grayscale(0.3) contrast(1.05);
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--dark-gray);
  margin-top: 1rem;
}

.hero-services {
  margin-top: 2rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--black);
}

.hero-services span {
  color: var(--dark-gray);
  font-weight: 400;
}

.hero-description {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--dark-gray);
  max-width: 500px;
  text-align: center;
  margin: 3rem auto 0;
  line-height: 1.8;
}

.hero-bottom {
  position: absolute;
  bottom: 2.5rem;
  left: 3rem;
  right: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.hero-availability {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-gray);
}

.hero-availability a {
  display: block;
  color: var(--black);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  margin-top: 0.3rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hero-recent {
  text-align: right;
}

.hero-recent-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark-gray);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.hero-recent-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--black);
  margin-top: 0.25rem;
}

/* === Section Styles === */
.section {
  padding: 6rem 0;
}

.section-border {
  border-top: 1px solid var(--border);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4rem;
  gap: 2rem;
}

.section-number {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: var(--black);
  line-height: 0.95;
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-gray);
  max-width: 400px;
  line-height: 1.8;
}

/* === Cards === */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  transition: all 0.4s var(--ease-out);
}

.card:hover {
  border-color: var(--black);
  transform: translateY(-4px);
}

.card-img-wrap {
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--light-gray);
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: all 0.5s ease;
}

.card:hover .card-img-wrap img {
  filter: grayscale(0);
  transform: scale(1.03);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

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

.card-category {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark-gray);
}

.card-year {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--mid-gray);
}

.card-arrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--black);
  margin-top: 0.75rem;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* === Grid === */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* === Experience Block === */
.exp-list {
  border-top: 1px solid var(--border);
}

.exp-item {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: 2rem;
  align-items: flex-start;
  transition: background 0.3s ease;
}

.exp-item:hover {
  background: rgba(0, 0, 0, 0.01);
  padding-left: 1rem;
  padding-right: 1rem;
}

.exp-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mid-gray);
  padding-top: 0.25rem;
}

.exp-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
}

.exp-desc {
  font-size: 0.85rem;
  color: var(--dark-gray);
  line-height: 1.7;
}

/* === Skills === */
.skill-pill {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal);
  transition: all 0.3s ease;
  cursor: default;
}

.skill-pill:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* === Contact Form === */
.form-group {
  margin-bottom: 2rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mid-gray);
  display: block;
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--black);
  outline: none;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  border-color: var(--black);
}

.form-input::placeholder {
  color: var(--mid-gray);
}

.form-textarea {
  width: 100%;
  padding: 0.75rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--black);
  outline: none;
  resize: none;
  transition: border-color 0.3s ease;
}

.form-textarea:focus {
  border-color: var(--black);
}

/* === Buttons === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--black);
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: transparent;
  color: var(--black);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: transparent;
  color: var(--black);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-ghost:hover {
  border-color: var(--black);
}

/* === Footer === */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-gray);
}

.footer-link:hover {
  color: var(--black);
}

/* === Page Header === */
.page-header {
  padding-top: calc(72px + 5rem);
  padding-bottom: 4rem;
}

.page-header-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-bottom: 1rem;
}

.page-header-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: var(--black);
  line-height: 0.95;
}

.page-header-desc {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--dark-gray);
  max-width: 500px;
  margin-top: 1.5rem;
  line-height: 1.8;
}

/* === Animations (GSAP-driven) === */
/* Initial state: hidden. GSAP handles all reveals. */
.anim {
  opacity: 0;
  will-change: transform, opacity;
}

/* Delay markers — parsed by gsap-animations.js */
.anim-delay-1 {}

.anim-delay-2 {}

.anim-delay-3 {}

.anim-delay-4 {}

.anim-delay-5 {}

/* Fallback: if GSAP fails to load, make everything visible */
.no-js .anim,
.gsap-fallback .anim {
  opacity: 1 !important;
  transform: none !important;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }

  .nav-contact {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .exp-item {
    grid-template-columns: 150px 1fr;
  }

  .exp-desc {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {

  .container,
  .container-wide {
    padding: 0 1.5rem;
  }

  .nav-inner {
    padding: 0 1.5rem;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .hero-headline {
    font-size: clamp(2.5rem, 14vw, 5rem);
  }

  .hero-headline-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-photo-container {
    width: 70%;
    height: auto;
    aspect-ratio: 3/4;
    margin: 1.5rem auto;
  }

  .hero-bottom {
    flex-direction: column;
    gap: 2rem;
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin-top: 3rem;
  }

  .hero-recent {
    text-align: left;
  }

  .section {
    padding: 4rem 0;
  }

  .section-header {
    flex-direction: column;
  }

  .exp-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .hero-services {
    font-size: 1.1rem;
  }
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 3px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--mid-gray);
}

/* === Contact Grid === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

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

/* === About Grid === */
.about-hero-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 768px) {
  .about-hero-grid {
    grid-template-columns: 1fr;
  }
}