/* ============================================================
   DESIGN TOKENS & CUSTOM PROPERTIES
============================================================ */
:root {
  --clr-bg: #080810;
  --clr-bg-2: #0e0e1a;
  --clr-surface: rgba(255,255,255,0.04);
  --clr-surface-2: rgba(255,255,255,0.07);
  --clr-border: rgba(255,255,255,0.08);
  --clr-border-hover: rgba(255,255,255,0.18);
  --clr-text: #f0f0f5;
  --clr-text-muted: rgba(240,240,245,0.5);
  --clr-text-dim: rgba(240,240,245,0.3);
  --clr-accent: #c8ff57;
  --clr-accent-2: #57c8ff;
  --clr-accent-glow: rgba(200,255,87,0.2);
  --clr-accent-2-glow: rgba(87,200,255,0.15);
  --clr-purple: #a855f7;
  --clr-purple-glow: rgba(168,85,247,0.2);

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'Space Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;

  --shadow-glow: 0 0 40px rgba(200,255,87,0.12);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-card-hover: 0 20px 60px rgba(0,0,0,0.6);

  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.18s ease;

  /* Fluid spacing */
  --space-xs:  clamp(8px, 1.5vw, 12px);
  --space-sm:  clamp(12px, 2vw, 20px);
  --space-md:  clamp(20px, 3vw, 32px);
  --space-lg:  clamp(32px, 5vw, 64px);
  --space-xl:  clamp(48px, 7vw, 100px);
  --space-2xl: clamp(64px, 10vw, 140px);

  --section-pad-v: clamp(64px, 9vw, 140px);
  --section-pad-h: clamp(16px, 5vw, 80px);
  --container-max: 1180px;
}

[data-theme="light"] {
  --clr-bg: #f7f6f2;
  --clr-bg-2: #eeede8;
  --clr-surface: rgba(0,0,0,0.04);
  --clr-surface-2: rgba(0,0,0,0.07);
  --clr-border: rgba(0,0,0,0.08);
  --clr-border-hover: rgba(0,0,0,0.2);
  --clr-text: #0d0d18;
  --clr-text-muted: rgba(13,13,24,0.55);
  --clr-text-dim: rgba(13,13,24,0.3);
  --clr-accent: #5a9900;
  --clr-accent-glow: rgba(90,153,0,0.15);
  --clr-accent-2: #0072b5;
  --clr-accent-2-glow: rgba(0,114,181,0.12);
  --clr-purple: #7c2fd9;
  --clr-purple-glow: rgba(124,47,217,0.15);
  --shadow-glow: 0 0 40px rgba(90,153,0,0.1);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.1);
  --shadow-card-hover: 0 12px 48px rgba(0,0,0,0.18);
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  min-width: 320px;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { border: none; background: none; cursor: pointer; font: inherit; }
ul, ol { list-style: none; }

/* ============================================================
   SCROLL PROGRESS BAR
============================================================ */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  z-index: 10000;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--clr-accent);
}

/* ============================================================
   PAGE LOADER
============================================================ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--clr-bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  overflow: hidden;
}

.loader-name span {
  display: inline-block;
  animation: loaderSlide 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.loader-name span:nth-child(2) { animation-delay: 0.1s; }
.loader-name span:nth-child(3) { animation-delay: 0.2s; }
.loader-name .accent { color: var(--clr-accent); }

@keyframes loaderSlide {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.loader-bar-wrap {
  width: min(200px, 60vw);
  height: 2px;
  background: var(--clr-border);
  border-radius: 2px;
  overflow: hidden;
}

.loader-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  border-radius: 2px;
  animation: loaderFill 1.4s ease forwards;
  box-shadow: 0 0 8px var(--clr-accent);
}

@keyframes loaderFill {
  from { width: 0%; }
  to   { width: 100%; }
}

/* ============================================================
   NAVBAR
============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px var(--section-pad-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition);
}

#navbar.scrolled {
  background: rgba(8,8,16,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px var(--section-pad-h);
  border-bottom: 1px solid var(--clr-border);
}

[data-theme="light"] #navbar.scrolled {
  background: rgba(247,246,242,0.92);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.nav-logo img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--clr-accent);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--clr-text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-xl);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-links a:hover {
  color: var(--clr-text);
  background: var(--clr-surface-2);
}

.nav-cta {
  font-size: 0.875rem !important;
  font-weight: 500 !important;
  color: var(--clr-bg) !important;
  background: var(--clr-accent) !important;
  padding: 10px 20px !important;
  border-radius: var(--radius-xl) !important;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast) !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--clr-accent-glow) !important;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Theme toggle */
#theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

#theme-toggle:hover {
  border-color: var(--clr-accent);
  transform: scale(1.05);
}

/* Hamburger */
#hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

#hamburger:hover { background: var(--clr-surface-2); }

#hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
}

#hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
#hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
#hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
#mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--clr-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: opacity var(--transition);
  padding: 80px 24px 40px;
}

#mobile-nav.open {
  display: flex;
  opacity: 1;
}

#mobile-nav a {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3rem);
  font-weight: 700;
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
  letter-spacing: -0.03em;
  padding: 8px 24px;
  min-height: 56px;
  display: flex;
  align-items: center;
}

#mobile-nav a:hover { color: var(--clr-accent); }

/* ============================================================
   HERO SECTION
============================================================ */
#home {
  min-height: 100svh;
  padding: clamp(120px, 15vw, 180px) var(--section-pad-h) clamp(60px, 8vw, 100px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Floating orbs — reduced on mobile */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
  will-change: transform;
}

.orb-1 {
  width: clamp(200px, 40vw, 500px);
  height: clamp(200px, 40vw, 500px);
  background: radial-gradient(circle, rgba(200,255,87,0.08) 0%, transparent 70%);
  top: -80px; right: -80px;
  animation-delay: 0s;
}

.orb-2 {
  width: clamp(150px, 30vw, 400px);
  height: clamp(150px, 30vw, 400px);
  background: radial-gradient(circle, rgba(87,200,255,0.06) 0%, transparent 70%);
  bottom: 0; left: -40px;
  animation-delay: -3s;
}

.orb-3 {
  width: clamp(100px, 20vw, 300px);
  height: clamp(100px, 20vw, 300px);
  background: radial-gradient(circle, rgba(168,85,247,0.05) 0%, transparent 70%);
  top: 40%; right: 20%;
  animation-delay: -6s;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-24px) scale(1.04); }
}

/* Grid background */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--clr-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--clr-border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  opacity: 0.4;
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(32px, 5vw, 60px);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: clamp(0.65rem, 1.5vw, 0.75rem);
  color: var(--clr-accent);
  background: rgba(200,255,87,0.08);
  border: 1px solid rgba(200,255,87,0.2);
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  margin-bottom: clamp(20px, 3vw, 32px);
  letter-spacing: 0.05em;
  animation: fadeUp 0.8s 0.2s both;
}

[data-theme="light"] .hero-badge {
  background: rgba(90,153,0,0.08);
  border-color: rgba(90,153,0,0.25);
}

.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 6.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: clamp(16px, 3vw, 28px);
  animation: fadeUp 0.8s 0.3s both;
}

.hero-title .line { overflow: hidden; display: block; }
.hero-title .line-inner {
  display: block;
  animation: lineReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-title .line:nth-child(2) .line-inner { animation-delay: 0.1s; }
.hero-title .line:nth-child(3) .line-inner { animation-delay: 0.2s; }

@keyframes lineReveal {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.hero-title .accent { color: var(--clr-accent); }

.hero-tagline {
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: var(--clr-text-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: clamp(28px, 4vw, 48px);
  font-weight: 300;
  animation: fadeUp 0.8s 0.5s both;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  animation: fadeUp 0.8s 0.6s both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-bg);
  background: var(--clr-accent);
  padding: 14px 28px;
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px var(--clr-accent-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--clr-text);
  background: transparent;
  border: 1px solid var(--clr-border);
  padding: 14px 28px;
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  min-height: 48px;
  white-space: nowrap;
}

.btn-outline:hover {
  border-color: var(--clr-border-hover);
  background: var(--clr-surface);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--clr-border);
  animation: fadeUp 0.8s 0.7s both;
  flex-wrap: wrap;
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--clr-accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  margin-top: 4px;
  font-weight: 300;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Hero image */
.hero-visual {
  position: relative;
  animation: fadeUp 1s 0.4s both;
  flex-shrink: 0;
}

.hero-img-frame {
  position: relative;
  width: clamp(220px, 25vw, 320px);
  height: clamp(280px, 33vw, 420px);
}

.hero-img-frame::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--clr-accent), transparent, var(--clr-accent-2));
  z-index: 0;
  animation: rotateBorder 6s linear infinite;
}

@keyframes rotateBorder {
  0%   { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.hero-img-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.hero-availability {
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  white-space: nowrap;
  z-index: 2;
  box-shadow: var(--shadow-card);
}

.avail-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

/* ============================================================
   SECTION COMMONS
============================================================ */
section {
  padding: var(--section-pad-v) var(--section-pad-h);
  position: relative;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--clr-text-dim);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 20px;
}

.section-sub {
  color: var(--clr-text-muted);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  line-height: 1.7;
  font-weight: 300;
  max-width: 500px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }

/* ============================================================
   ABOUT SECTION
============================================================ */
#about {
  background: var(--clr-bg-2);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.about-img-wrap {
  position: relative;
}

.about-img-wrap img {
  width: 100%;
  max-width: 380px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  aspect-ratio: 4/5;
}

.about-img-decor-2 {
  position: absolute;
  top: -16px;
  left: -16px;
  width: 70px;
  height: 70px;
  background: var(--clr-accent);
  border-radius: var(--radius-sm);
  opacity: 0.1;
}

.about-content .section-label { margin-bottom: 24px; }

.about-text {
  color: var(--clr-text-muted);
  line-height: 1.8;
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  margin-bottom: 18px;
  font-weight: 300;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: clamp(24px, 3vw, 36px) 0;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.highlight-item:hover { border-color: var(--clr-accent); }

.highlight-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.highlight-text {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}

.highlight-text strong {
  display: block;
  color: var(--clr-text);
  font-size: 0.87rem;
  margin-bottom: 2px;
}

.social-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: clamp(20px, 3vw, 32px);
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
  flex-shrink: 0;
}

.social-link img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  filter: brightness(0.7);
}

[data-theme="dark"] .social-link img { filter: brightness(1.4); }

.social-link:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--clr-accent-glow);
}

.social-link:hover img { filter: brightness(0) invert(0); }

/* ============================================================
   SKILLS SECTION
============================================================ */
#skills {
  background: var(--clr-bg);
}

.skills-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: clamp(40px, 5vw, 64px);
  flex-wrap: wrap;
  gap: 24px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: 14px;
}

.skill-card {
  padding: clamp(20px, 3vw, 32px) clamp(16px, 2.5vw, 24px);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.skill-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.skill-card:hover::after { transform: scaleX(1); }

.skill-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.skill-name {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.skill-desc {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  font-weight: 300;
}

.skill-level {
  margin-top: 18px;
  height: 2px;
  background: var(--clr-border);
  border-radius: 2px;
  overflow: hidden;
}

.skill-level-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  border-radius: 2px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================================
   PORTFOLIO SECTION
============================================================ */
#portfolio {
  background: var(--clr-bg-2);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: clamp(32px, 4vw, 48px);
  flex-wrap: wrap;
  gap: 20px;
}

.portfolio-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  font-family: var(--font-body);
  font-size: 0.83rem;
  font-weight: 400;
  color: var(--clr-text-muted);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  padding: 10px 18px;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--clr-text);
  border-color: var(--clr-border-hover);
}

.tab-btn.active {
  color: var(--clr-bg);
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  font-weight: 500;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 20px;
}

/* ── Project card ── */
.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  transition: all var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

/* Image wrapper — object-fit: contain to preserve full design */
.project-img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--clr-bg);
  /* Fixed height so cards stay uniform; image stays fully visible */
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* Show full design, no cropping */
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 8px;        /* Small breathing room inside the frame */
}

.project-card:hover .project-img-wrap img {
  transform: scale(1.05);
}

/* "Click to expand" hint badge */
.project-img-wrap::after {
  content: '🔍 Click to expand';
  position: absolute;
  bottom: 8px;
  right: 8px;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--clr-accent);
  background: rgba(0,0,0,0.6);
  padding: 4px 8px;
  border-radius: var(--radius-xl);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
  letter-spacing: 0.03em;
}

.project-card:hover .project-img-wrap::after { opacity: 1; }

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,8,16,0.85) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

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

.overlay-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-accent);
  background: rgba(200,255,87,0.12);
  border: 1px solid rgba(200,255,87,0.25);
  padding: 5px 10px;
  border-radius: var(--radius-xl);
  letter-spacing: 0.05em;
}

.project-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.tag {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--clr-text-muted);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  padding: 4px 10px;
  border-radius: var(--radius-xl);
  letter-spacing: 0.03em;
}

.project-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.project-desc {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  font-weight: 300;
}

/* ── Flip card (business cards) ── */
.flip-card-new {
  perspective: 1200px;
  border-radius: var(--radius-lg);
}

.flip-card-new:hover .flip-card-new-inner {
  transform: rotateY(180deg);
}

.flip-card-new-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;   /* Business card ratio */
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.flip-front, .flip-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--clr-bg);
}

/* contain so both sides of the card are fully visible */
.flip-front img, .flip-back img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.flip-back { transform: rotateY(180deg); }

.flip-hint {
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  font-family: var(--font-mono);
  text-align: center;
  margin-top: 10px;
  letter-spacing: 0.05em;
}

/* ── LIGHTBOX ── */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 8000;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 48px);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: zoom-out;
  animation: fadeIn 0.25s ease;
}

.lightbox-overlay.active { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox-overlay img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 32px 80px rgba(0,0,0,0.8);
  animation: zoomIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
}

@keyframes zoomIn {
  from { transform: scale(0.88); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border-hover);
  color: var(--clr-text);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 1;
}

.lightbox-close:hover {
  background: var(--clr-accent);
  color: var(--clr-bg);
  border-color: var(--clr-accent);
}

/* ============================================================
   WORK PROCESS SECTION
============================================================ */
#process {
  background: var(--clr-bg);
}

.process-header {
  text-align: center;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.process-header .section-label {
  justify-content: center;
}

.process-header .section-label::before { display: none; }

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}

.process-step {
  padding: clamp(24px, 3vw, 40px) clamp(18px, 2.5vw, 32px);
  background: var(--clr-bg);
  transition: background var(--transition);
  position: relative;
}

.process-step:hover { background: var(--clr-bg-2); }

.step-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.step-title {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.step-desc {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  font-weight: 300;
}

.step-icon {
  font-size: 1.4rem;
  margin-bottom: 14px;
}

/* ============================================================
   SERVICES SECTION
============================================================ */
#services {
  background: var(--clr-bg-2);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 20px;
  margin-top: clamp(40px, 5vw, 64px);
}

.service-card {
  padding: clamp(28px, 3.5vw, 40px) clamp(20px, 2.5vw, 32px);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover::before { opacity: 1; }

.service-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-accent);
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}

.service-icon { font-size: 1.8rem; margin-bottom: 14px; }

.service-name {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.service-desc {
  font-size: 0.83rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* ============================================================
   CTA — LET'S WORK TOGETHER
============================================================ */
#cta {
  background: var(--clr-bg);
  text-align: center;
  overflow: hidden;
}

.cta-inner {
  position: relative;
  padding: clamp(48px, 7vw, 80px) clamp(20px, 5vw, 40px);
  border-radius: var(--radius-xl);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: clamp(200px, 40vw, 400px);
  height: clamp(200px, 40vw, 400px);
  background: radial-gradient(circle, var(--clr-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 20px;
}

.cta-sub {
  color: var(--clr-text-muted);
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  font-weight: 300;
  max-width: 420px;
  margin: 0 auto clamp(32px, 4vw, 48px);
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: white;
  background: #25D366;
  padding: 14px 26px;
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  min-height: 48px;
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(37,211,102,0.3);
}

.btn-telegram {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: white;
  background: #229ED9;
  padding: 14px 26px;
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  min-height: 48px;
}

.btn-telegram:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(34,158,217,0.3);
}

/* ============================================================
   CONTACT SECTION
============================================================ */
#contact {
  background: var(--clr-bg-2);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  margin-bottom: 12px;
  transition: all var(--transition-fast);
}

.contact-info-item:hover {
  border-color: var(--clr-accent);
  background: var(--clr-surface);
}

.contact-icon {
  font-size: 1.1rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-surface-2);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.7rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.contact-info-val {
  font-size: 0.88rem;
  font-weight: 400;
}

/* Form */
.contact-form {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 40px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 18px;
}

.form-group label {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 15px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--clr-text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  min-height: 48px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--clr-text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

.form-group select option {
  background: var(--clr-bg-2);
  color: var(--clr-text);
}

.form-submit {
  width: 100%;
  padding: 15px;
  background: var(--clr-accent);
  color: var(--clr-bg);
  border: none;
  border-radius: var(--radius-xl);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 52px;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--clr-accent-glow);
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}

.form-success.show { display: block; }

.form-success-icon { font-size: 3rem; margin-bottom: 16px; }

.form-success h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}

.form-success p {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
}

/* ============================================================
   FOOTER
============================================================ */
footer {
  padding: clamp(32px, 4vw, 48px) var(--section-pad-h);
  border-top: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.footer-logo span { color: var(--clr-accent); }

.footer-copy {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  font-weight: 300;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-links a:hover { color: var(--clr-accent); }

/* ============================================================
   FLOATING QUICK CONTACT
============================================================ */
.floating-contact {
  position: fixed;
  bottom: clamp(16px, 3vw, 32px);
  right: clamp(16px, 3vw, 32px);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.float-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-xl);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  text-decoration: none;
  min-height: 48px;
}

.float-wa  { background: #25D366; }
.float-tg  { background: #229ED9; }

.float-wa:hover {
  transform: translateX(-4px);
  box-shadow: 0 12px 32px rgba(37,211,102,0.4);
}

.float-icon { font-size: 1.1rem; flex-shrink: 0; }

/* ============================================================
   RESPONSIVE — MOBILE-FIRST BREAKPOINTS
============================================================ */

/* ── 320–480px: Small mobile ── */
@media (max-width: 480px) {
  /* Hero */
  .hero-visual { display: none; }
  #home {
    padding: 80px 20px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .hero-title {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  .hero-tagline {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 6px 12px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    max-width: 250px;
    text-align: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 12px;
  }

  .stat-num {
    font-size: 1.2rem;
  }

  .social-links{
    display: flex;
    flex-direction:row;
    justify-content: center;
    align-items: center;
  }
  /* Portfolio */
  .projects-grid { grid-template-columns: 1fr; }
  .portfolio-header { flex-direction: column; align-items:center; }
  .portfolio-tabs { width: 100%; }
  .tab-btn { font-size: 0.78rem; padding: 9px 14px; }

  /* Skills */
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .skills-header { flex-direction: column; align-items: center; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 24px; }
  .about-img-wrap { display: flex; justify-content: center; }
  .about-img-wrap img { max-width: 260px; }
  .about-highlights { grid-template-columns: 1fr; }

  /* Process */
  .process-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  footer { flex-direction: column; text-align: center; align-items: center; }

  /* Float btn — icon only */
  .float-btn span:not(.float-icon) { display: none; }
  .float-btn { padding: 14px; border-radius: 50%; width: 52px; height: 52px; justify-content: center; }
}

/* ── 481–768px: Mobile ── */
@media (min-width: 481px) and (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-img-wrap { max-width: 300px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  footer { flex-direction: column; text-align: center; align-items: center; }
  .float-btn span:not(.float-icon) { display: none; }
  .float-btn { padding: 14px; border-radius: 50%; width: 52px; height: 52px; justify-content: center; }
}

/* ── 769–1024px: Tablet ── */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr 1.3fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  #hamburger { display: flex; }
  .nav-cta { display: none; }
}

/* ── 1025px+: Laptop / Desktop ── */
@media (min-width: 1025px) {
  .hero-inner { grid-template-columns: 1fr auto; }
  .hero-visual { display: block; }
  .nav-links { display: flex; }
  #hamburger { display: none; }
  .about-grid { grid-template-columns: 1fr 1.2fr; gap: 80px; }
  .contact-grid { grid-template-columns: 1fr 1.4fr; }
  .process-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Shared: hide hamburger on wide screens ── */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  #hamburger { display: flex; }
  .nav-cta { display: none; }
}

/* ── 1440px+: Large screens ── */
@media (min-width: 1440px) {
  :root { --container-max: 1280px; }
}

/* ============================================================
   PERFORMANCE — reduce motion & heavy effects on mobile
============================================================ */
@media (max-width: 768px) {
  .orb { filter: blur(60px); opacity: 0.6; }
  .grid-bg { opacity: 0.25; }

  /* Disable 3D flip on touch — use a tap toggle instead */
  .flip-card-new { perspective: none; }
  .flip-card-new-inner { transform-style: flat; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   ACCESSIBILITY
============================================================ */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* High contrast touch targets throughout */
a, button, [role="button"] {
  -webkit-tap-highlight-color: transparent;
}