/* ============================================
   RUBIYA NOOR — Visual & Brand Designer
   Bauhaus-Inspired Portfolio
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ---- CSS Variables ---- */
:root {
  --black: #0a0a0a;
  --white: #f8f6f1;
  --warm-white: #fdfbf7;
  --accent: #c8a96e;
  --accent-dark: #a8854a;
  --mid: #6b6560;
  --light: #e8e4dc;
  --border: #d4cfc7;
  --text: #2c2a27;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --radius: 2px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --nav-h: 72px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--warm-white);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- Typography ---- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 300; line-height: 1.15; }
h1 { font-size: clamp(3rem, 8vw, 7rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h4 { font-size: 1.1rem; }
p { max-width: 65ch; }

/* ---- Layout Utilities ---- */
.container { width: 92%; max-width: 1240px; margin: 0 auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.section { padding: 6rem 0; }
.section-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(253, 251, 247, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--black);
}
.nav-logo span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--black); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--black);
  color: var(--black) !important;
  transition: all var(--transition) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--black); color: var(--warm-white) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--black);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--warm-white);
  z-index: 99;
  padding: 3rem;
  flex-direction: column;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform var(--transition);
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--black);
  color: var(--warm-white);
  border: 1px solid var(--black);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--black);
}
.btn-outline:hover { background: var(--black); color: var(--warm-white); }
.btn-ghost {
  background: transparent;
  color: var(--mid);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--black); color: var(--black); }
.btn svg, .btn i { font-size: 0.85rem; }

/* ---- Cards ---- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: var(--transition);
}
.card:hover { border-color: var(--accent); box-shadow: 0 8px 40px rgba(0,0,0,0.06); }

/* ---- Page Hero (for inner pages) ---- */
.page-hero {
  padding-top: calc(var(--nav-h) + 5rem);
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border);
}

/* ---- Footer ---- */
.footer {
  background: var(--black);
  color: rgba(248,246,241,0.6);
  padding: 5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-brand span { color: var(--accent); }
.footer-desc { font-size: 0.875rem; line-height: 1.8; max-width: 28ch; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col a { font-size: 0.875rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  font-size: 0.8rem;
}
.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  color: rgba(248,246,241,0.6);
  transition: all var(--transition);
}
.footer-social a:hover { border-color: var(--accent); color: var(--accent); }

/* ---- Back to Top ---- */
#back-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: var(--black);
  color: var(--white);
  border: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  opacity: 0; pointer-events: none;
  transition: all var(--transition);
  z-index: 50;
}
#back-top.visible { opacity: 1; pointer-events: auto; }
#back-top:hover { background: var(--accent); }

/* ---- Loading Screen ---- */
#loader {
  position: fixed;
  inset: 0;
  background: var(--warm-white);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#loader.hide { opacity: 0; visibility: hidden; }
.loader-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 2rem;
}
.loader-bar {
  width: 120px;
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--black);
  animation: load 1.2s ease forwards;
}
@keyframes load {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

/* ---- Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ---- Tag ---- */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  background: var(--light);
  color: var(--mid);
}

/* ---- Project Card ---- */
.project-card {
  position: relative;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.project-card:hover { box-shadow: 0 12px 50px rgba(0,0,0,0.1); }
.project-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.project-img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mid);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}
.project-info { padding: 1.5rem; }
.project-category { font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }
.project-title { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 0.5rem; }
.project-desc { font-size: 0.875rem; color: var(--mid); line-height: 1.6; }
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transition: opacity var(--transition);
}

/* ---- Timeline ---- */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-item { position: relative; padding-bottom: 2.5rem; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.4rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
}
.timeline-date { font-size: 0.75rem; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.25rem; }
.timeline-role { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 0.25rem; }
.timeline-company { font-size: 0.85rem; color: var(--mid); margin-bottom: 0.75rem; }
.timeline-desc { font-size: 0.875rem; color: var(--mid); line-height: 1.7; }

/* ---- Skills Grid ---- */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.skill-group { padding: 1.5rem; border: 1px solid var(--border); }
.skill-group-title { font-family: var(--font-body); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.skill-list { display: flex; flex-direction: column; gap: 0.4rem; }
.skill-list li { font-size: 0.875rem; color: var(--mid); display: flex; align-items: center; gap: 0.5rem; }
.skill-list li::before { content: '—'; color: var(--border); font-size: 0.75rem; }

/* ---- Contact ---- */
.contact-links { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-decoration: none;
}
.contact-link:hover { border-color: var(--accent); background: var(--light); }
.contact-link-icon {
  width: 40px; height: 40px;
  background: var(--light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-link-text { display: flex; flex-direction: column; }
.contact-link-label { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mid); }
.contact-link-value { font-size: 0.95rem; color: var(--text); }

/* ---- Placeholder Art ---- */
.art-block {
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.art-block::before {
  content: '';
  position: absolute;
  width: 60%; aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: 50%;
}
.art-block::after {
  content: '';
  position: absolute;
  width: 30%; aspect-ratio: 1;
  background: var(--accent);
  opacity: 0.15;
  border-radius: 50%;
  transform: translate(30%, -20%);
}

/* ---- Stats ---- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }
.stat-item {
  padding: 2.5rem;
  background: var(--white);
  text-align: center;
  border: 1px solid var(--border);
}
.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 300;
  color: var(--black);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-number span { color: var(--accent); }
.stat-label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mid); }

/* ---- Case Study ---- */
.case-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin: 2rem 0;
}
.case-meta-item {
  padding: 1.25rem 1.5rem;
  background: var(--warm-white);
}
.case-meta-label { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mid); margin-bottom: 0.25rem; }
.case-meta-value { font-size: 0.95rem; color: var(--text); }

.case-section { margin-bottom: 3rem; padding-bottom: 3rem; border-bottom: 1px solid var(--border); }
.case-section:last-child { border-bottom: none; }
.case-section h3 { margin-bottom: 1rem; }
.case-section p { font-size: 0.95rem; color: var(--mid); line-height: 1.8; margin-bottom: 1rem; }

/* Process steps */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); margin: 1.5rem 0; }
.process-step { background: var(--warm-white); padding: 1.5rem; }
.process-step-num { font-family: var(--font-display); font-size: 2.5rem; font-weight: 300; color: var(--accent); opacity: 0.5; line-height: 1; margin-bottom: 0.5rem; }
.process-step-title { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.5rem; }
.process-step-desc { font-size: 0.8rem; color: var(--mid); line-height: 1.6; }

/* ---- Blog ---- */
.blog-card {
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.blog-card:hover { box-shadow: 0 8px 40px rgba(0,0,0,0.08); }
.blog-img {
  width: 100%; aspect-ratio: 16/9;
  background: var(--light);
  display: flex; align-items: center; justify-content: center;
  color: var(--mid); font-size: 0.75rem;
}
.blog-content { padding: 1.5rem; }
.blog-date { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mid); margin-bottom: 0.5rem; }
.blog-title { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 0.75rem; line-height: 1.3; }
.blog-excerpt { font-size: 0.85rem; color: var(--mid); line-height: 1.7; }
.read-more { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-top: 1rem; transition: gap var(--transition); }
.read-more:hover { gap: 0.8rem; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }
  .grid-2 { grid-template-columns: 1fr; gap: 2.5rem; }
  .grid-3 { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .case-meta { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  h1 { font-size: clamp(2.5rem, 12vw, 5rem); }
  .section { padding: 4rem 0; }
  .page-hero { padding-top: calc(var(--nav-h) + 3rem); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .btn { padding: 0.8rem 1.5rem; font-size: 0.7rem; }
}