/* ========================================
   NIOCREATIONS — Portfolio v3.0
   Dark, clean, no-gimmick
   ======================================== */

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

:root {
  --bg: #0b0b10;
  --bg-card: #131319;
  --bg-card-hover: #1a1a22;
  --text: #e4e4ec;
  --text-muted: #9394a5;
  --text-subtle: #55566a;
  --accent: #6b9fff;
  --accent-soft: rgba(107,159,255,0.08);
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(107,159,255,0.25);
  --font-h: 'Space Grotesk', system-ui, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-b: 'Inter', system-ui, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --radius: 14px;
  --radius-sm: 10px;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: none;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Selection ── */
::selection {
  background: var(--accent);
  color: #000;
}

/* ========================================
   Preloader
   ======================================== */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.preloader.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  text-align: center;
}

.preloader-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: block;
  margin-bottom: 24px;
  cursor: default;
}

.preloader-logo.click {
  animation: preloaderClick 0.25s ease-in forwards;
}

@keyframes preloaderClick {
  0%   { color: var(--text); transform: scale(1); }
  100% { color: var(--text-subtle); transform: scale(0.95); }
}

.preloader-bar {
  width: 120px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  margin: 0 auto;
  overflow: hidden;
}

.preloader-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  animation: preloaderFill 0.7s var(--ease) forwards;
}

@keyframes preloaderFill {
  to { width: 100%; }
}

/* ========================================
   Scroll Progress
   ======================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 9998;
  width: 0%;
  transition: width 0.05s linear;
}

/* ========================================
   Accent text
   ======================================== */
.accent-text {
  color: var(--accent);
}

/* ── Labels ── */
.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-h);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-h);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  position: relative;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
}

.btn-primary:hover {
  background: #83b0ff;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 40px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.header.scrolled {
  background: rgba(11,11,16,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 16px 40px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo-dot {
  color: var(--accent);
}

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

.nav a {
  font-family: var(--font-h);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}

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

.nav a:hover::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}

.lang-btn {
  background: none;
  border: none;
  font-family: var(--font-h);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-subtle);
  cursor: pointer;
  padding: 4px 6px;
  transition: color 0.2s;
  border-radius: 4px;
}

.lang-btn.active { color: var(--accent); background: var(--accent-soft); }
.lang-btn:hover { color: var(--text); }

.lang-sep {
  font-size: 0.6rem;
  color: var(--text-subtle);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  z-index: 200;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(11,11,16,0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s, visibility 0.4s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.mobile-menu-nav a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  transition: color 0.3s;
}

.mobile-menu-nav a:hover {
  color: var(--accent);
}

.mobile-menu-nav .lang-switch {
  margin-left: 0;
  margin-top: 16px;
}

/* Hero body */
.hero-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 40px 60px;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-label {
  font-family: var(--font-h);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}


/* ========================================
   Section Head
   ======================================== */
.section-head {
  margin-bottom: 56px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.section-sub {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ========================================
   Work / Projects
   ======================================== */
.work {
  padding: 120px 0 140px;
}

.work-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.work-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.4s, transform 0.4s var(--ease);
}

.work-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.work-card-visual {
  position: relative;
  overflow: hidden;
}

.work-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.work-card:hover .work-card-visual img {
  transform: scale(1.03);
}

.work-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-h);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #22c55e;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.2);
  padding: 5px 14px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.badge-interactive {
  color: var(--accent);
  background: rgba(107,159,255,0.10);
  border-color: rgba(107,159,255,0.20);
}

.badge-external {
  color: #f59e0b;
  background: rgba(245,158,11,0.12);
  border-color: rgba(245,158,11,0.2);
}

.work-card-body {
  padding: 40px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.work-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.work-card-meta span {
  font-family: var(--font-h);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 12px;
  border-radius: 50px;
}

.work-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.work-card-body p {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
}

.work-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.work-card-tech {
  display: flex;
  gap: 8px;
}

.work-card-tech span {
  font-family: var(--font-h);
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--text-subtle);
  background: rgba(255,255,255,0.04);
  padding: 5px 12px;
  border-radius: 50px;
  border: 1px solid var(--border);
}

.work-card-arrow {
  color: var(--text-subtle);
  transition: color 0.3s, transform 0.3s var(--ease);
}

.work-card:hover .work-card-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* "And more" card */
.work-card--more {
  grid-template-columns: 1fr;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  text-align: left;
}

.work-card-more-inner {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.work-card-more-count {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.work-card--more h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.work-card--more p {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
}

.work-card--more .work-card-arrow {
  margin-top: 12px;
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 580px;
  max-height: 80vh;
  overflow-y: auto;
  scrollbar-width: none;
  transform: translateY(16px);
  transition: transform 0.3s var(--ease);
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal::-webkit-scrollbar {
  display: none;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-subtle);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.modal-close:hover {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}

.modal-list {
  display: flex;
  flex-direction: column;
}

.modal-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.modal-item:last-child {
  border-bottom: none;
}

.modal-item:hover {
  background: var(--bg-card-hover);
}

.modal-item-info {
  flex: 1;
  min-width: 0;
}

.modal-item-name {
  display: block;
  font-family: var(--font-h);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 3px;
}

.modal-item-desc {
  display: block;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.5;
}

.modal-item-tech {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.modal-item-tech span {
  font-family: var(--font-h);
  font-size: 0.58rem;
  font-weight: 500;
  color: var(--text-subtle);
  background: rgba(255,255,255,0.04);
  padding: 4px 10px;
  border-radius: 50px;
  border: 1px solid var(--border);
}

.modal-item-arrow {
  color: var(--text-subtle);
  flex-shrink: 0;
  transition: color 0.2s, transform 0.2s;
}

.modal-item:hover .modal-item-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

@media (max-width: 480px) {
  .modal-item {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 20px;
  }

  .modal-item-tech {
    order: 3;
    width: 100%;
  }

  .work-card-more-inner {
    padding: 32px 28px;
  }
}

/* ========================================
   About
   ======================================== */
.about {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

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

.about-left h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.about-philosophy {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.8;
  margin-top: 24px;
}

/* About right: simple approach list instead of metrics */
.about-points {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-point {
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.3s;
}

.about-point:hover {
  border-color: var(--border-hover);
}

.about-point-title {
  font-family: var(--font-h);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.about-point-desc {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========================================
   Contact
   ======================================== */
.contact {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.contact-inner {
  max-width: 560px;
}

.contact-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.contact-inner > p {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease);
}

.contact-link:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.contact-link-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border-radius: 10px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-link-body {
  flex: 1;
}

.contact-link-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 2px;
}

.contact-link-value {
  font-family: var(--font-h);
  font-size: 0.95rem;
  font-weight: 500;
}

.contact-link-arrow {
  color: var(--text-subtle);
  flex-shrink: 0;
  transition: color 0.3s, transform 0.3s var(--ease);
}

.contact-link:hover .contact-link-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

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

.footer-copy {
  font-size: 0.72rem;
  color: var(--text-subtle);
}

/* ========================================
   Scroll Animations
   ======================================== */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .header {
    padding: 20px 24px;
  }

  .header.scrolled {
    padding: 14px 24px;
  }

  .hero-body {
    padding: 0 24px 60px;
  }

  .work-card {
    grid-template-columns: 1fr;
  }

  .work-card-visual {
    aspect-ratio: 16/10;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .work, .about, .contact {
    padding: 80px 0;
  }

  .container {
    padding: 0 20px;
  }

}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

  .about-points {
    gap: 14px;
  }

  .work-card-body {
    padding: 28px;
  }

  .footer-row {
    flex-direction: column;
    gap: 8px;
  }

  .section-head h2 {
    font-size: 1.8rem;
  }
}