/* ============================================================
   HAFZ.MP4 — Video Editing Portfolio
   Design System: Minimal / Cinematic / Editorial / Premium
   ============================================================ */

/* --- Design Tokens --- */
:root {
  --bg: #0a0a0a;
  --bg-elevated: #111;
  --surface: #181818;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  --text-primary: #f0f0f0;
  --text-secondary: #999;
  --text-muted: #555;
  --accent: #e0e0e0;
  --font: 'Inter', sans-serif;
  --max-width: 1240px;
  --section-pad: clamp(80px, 12vh, 160px);
  --gutter: clamp(16px, 3vw, 32px);
  --radius: 4px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

ul { list-style: none; }

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition),
              backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

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

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.7; }

.nav-logo img {
  height: 36px;
  width: auto;
}

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

.nav-links a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 110;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.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);
}

/* --- Mobile Nav Overlay --- */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.nav-overlay.open {
  display: flex;
}

.nav-overlay a {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-overlay a:hover { color: var(--text-primary); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: clamp(120px, 16vh, 180px) var(--gutter) clamp(24px, 4vh, 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.5;
  margin: 0 auto;
}

/* ============================================================
   WORK / PORTFOLIO
   ============================================================ */
#work {
  padding: clamp(24px, 4vh, 48px) 0 var(--section-pad);
}

.section-header {
  margin-bottom: 40px;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

/* Category Filters */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 8px 20px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.filter-btn:hover,
.filter-btn:focus-visible {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.filter-btn.active {
  color: var(--bg);
  background: var(--text-primary);
  border-color: var(--text-primary);
}

/* Project Grid — Modern 3-Column Layout */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 1024px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 640px) {
  .project-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.project-thumb {
  position: relative;
  overflow: hidden;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.project-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-thumb img {
  transform: scale(1.03);
}

/* Play icon overlay */
.project-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border: 1.5px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
  backdrop-filter: blur(4px);
  background: rgba(0,0,0,0.3);
}

.project-play svg {
  width: 18px;
  height: 18px;
  fill: #fff;
  margin-left: 2px;
}

.project-card:hover .project-play {
  opacity: 1;
}

.project-info {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.project-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--text-primary);
  width: 100%;
  word-break: normal;
  overflow-wrap: break-word;
}

.project-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Playlist link row */
.category-link-row {
  grid-column: 1 / -1;
  text-align: center;
  padding: 32px 0 16px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  transition: color var(--transition), border-color var(--transition);
}

.category-link:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.category-link svg {
  width: 14px; height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ============================================================
   PROJECT MODAL
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  overflow-y: auto;
  padding: 60px var(--gutter);
}

.modal-overlay.open {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.modal-content {
  width: 100%;
  max-width: 820px;
  margin: auto;
  animation: modalIn 0.4s ease;
}

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

.modal-close {
  position: fixed;
  top: 24px;
  right: 28px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 210;
  color: var(--text-secondary);
  font-size: 1.5rem;
  transition: color var(--transition);
}

.modal-close:hover { color: var(--text-primary); }

.modal-video {
  width: 100%;
  position: relative;
  padding-bottom: 56.25%;
  background: var(--surface);
  margin-bottom: 32px;
}

.modal-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.modal-details {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}

.modal-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.modal-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.modal-meta span {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
}

.modal-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 12px 28px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.modal-actions .modal-link {
  margin-top: 0;
}

.modal-yt-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.modal-yt-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.4);
}

.modal-link:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--border-hover);
}

/* ============================================================
   ABOUT
   ============================================================ */
#about {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-bio {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 24px;
  max-width: 540px;
}

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 24px;
}

.detail-group h4 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.detail-group ul li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 6px 0;
  line-height: 1.4;
}

/* Experience Timeline */
.experience-list {
  margin-top: 24px;
}

.exp-item {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.exp-year {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  min-width: 100px;
  flex-shrink: 0;
}

.exp-role {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.exp-role strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ============================================================
   CONTACT / CTA
   ============================================================ */
#contact {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}

.cta-block {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--text-primary);
  transition: opacity var(--transition), transform var(--transition);
}

.cta-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.contact-methods {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.contact-method {
  text-align: center;
}

.contact-method-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-method a,
.contact-method span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.contact-method a:hover { color: var(--text-primary); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--text-primary); }

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ============================================================
   FOCUS STATES (Accessibility)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--text-secondary);
  outline-offset: 3px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding: 100px var(--gutter) 60px; }
  .hero-title { letter-spacing: -0.02em; }

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

  .project-card.featured .project-thumb {
    padding-bottom: 56.25%;
  }

  .project-card:not(.featured) .project-thumb {
    padding-bottom: 56.25%;
  }

  .project-play { opacity: 0.8; }

  .project-info {
    padding: 16px 18px;
    flex-direction: column;
    gap: 4px;
  }

  .about-details {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-methods {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .modal-overlay { padding: 24px var(--gutter); }

  .modal-close { top: 12px; right: 16px; }

  .modal-details {
    flex-direction: column;
    gap: 16px;
  }

  .filters { gap: 6px; }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.7rem;
  }
}

/* Small phones */
@media (max-width: 400px) {
  .hero-title { font-size: 2.5rem; }
  .section-title { font-size: 1.8rem; }
  .cta-title { font-size: 1.8rem; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-scroll { animation: none; }

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}