/* ============================================================
   Muhammad Ahmad Portfolio — Premium Dark Theme
   ============================================================ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* ── Design Tokens ── */
:root {
  /* Palette */
  --bg-base:        #080b12;
  --bg-surface:     #0d1220;
  --bg-elevated:    #111827;
  --glass:          rgba(255,255,255,0.04);
  --glass-border:   rgba(255,255,255,0.08);
  --glass-hover:    rgba(255,255,255,0.07);

  /* Accents */
  --accent-blue:    #2563eb;
  --accent-sky:     #38bdf8;
  --accent-indigo:  #4f7df0;
  --accent-cyan:    #06b6d4;
  --accent-glow:    rgba(37,99,235,0.18);

  /* Gradients */
  --grad-primary:   linear-gradient(135deg, #2563eb 0%, #38bdf8 100%);
  --grad-secondary: linear-gradient(135deg, #1d4ed8 0%, #06b6d4 100%);
  --grad-text:      linear-gradient(135deg, #60a5fa 0%, #38bdf8 45%, #22d3ee 100%);

  /* Typography */
  --font-display:   'Syne', sans-serif;
  --font-body:      'Space Grotesk', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;

  /* Text */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #475569;

  /* Spacing */
  --section-py:     6rem;
  --radius-sm:      8px;
  --radius-md:      16px;
  --radius-lg:      24px;
  --radius-xl:      32px;

  /* Transitions */
  --ease:           cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:       cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

/* ── Body hidden until loader completes ── */
body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.5s ease;
}

body.body-ready {
  visibility: visible;
  opacity: 1;
}

body.nav-open { overflow: hidden; }

::selection { background: rgba(79,125,240,0.4); color: #fff; }

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: rgba(79,125,240,0.5); border-radius: 3px; }

/* ── Utility ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: var(--section-py) 0; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.grad-text {
  background: var(--grad-text);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientFlow 6s ease-in-out infinite;
}

@keyframes gradientFlow {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  line-height: 1.7;
}

.glass-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.glass-card:hover {
  background: var(--glass-hover);
  border-color: rgba(79,125,240,0.25);
  transform: translateY(-4px);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 4px 24px rgba(37,99,235,0.3);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.25) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.7s var(--ease);
}

.btn-primary:hover::before { transform: translateX(100%); }

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(37,99,235,0.5);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  background: var(--glass);
}

.btn-outline:hover {
  border-color: rgba(79,125,240,0.5);
  background: rgba(79,125,240,0.1);
  transform: translateY(-2px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  color: var(--accent-blue);
}

/* ── Loading Screen ── */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg-base);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  /* loader itself is always visible — body hides behind it */
  visibility: visible;
  opacity: 1;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

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

/* ── Loader wrapper — fully responsive ── */
.loader-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 120px;
  width: auto;
  margin: 2rem;
  font-family: "Poppins", sans-serif;
  /* fluid font: ~0.85rem on 320px phone → 1.6em on desktop */
  font-size: clamp(0.75rem, 4vw, 1.6em);
  font-weight: 600;
  user-select: none;
  color: #e0d8d0;
  /* fluid scale: 0.6 on tiny phones → 2 on large screens */
  scale: clamp(0.6, 1.5vw + 0.45, 2);
}

.loader {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: 1;
  background-color: transparent;
  mask: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent 6px,
    black 6px,
    black 9px
  );
}

.loader::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 50% 50%, #ff0 0%, transparent 50%),
    radial-gradient(circle at 45% 45%, #f00 0%, transparent 45%),
    radial-gradient(circle at 55% 55%, #0ff 0%, transparent 45%),
    radial-gradient(circle at 45% 55%, #0f0 0%, transparent 45%),
    radial-gradient(circle at 55% 45%, #00f 0%, transparent 45%);
  mask: radial-gradient(
    circle at 50% 50%,
    transparent 0%,
    transparent 10%,
    black 25%
  );
  animation:
    transform-animation 2s infinite alternate,
    opacity-animation 4s infinite;
  animation-timing-function: cubic-bezier(0.6, 0.8, 0.5, 1);
}

@keyframes transform-animation {
  0%   { transform: translate(-55%); }
  100% { transform: translate(55%); }
}

@keyframes opacity-animation {
  0%, 100% { opacity: 0; }
  15%       { opacity: 1; }
  65%       { opacity: 0; }
}

.loader-letter {
  display: inline-block;
  opacity: 0;
  animation: loader-letter-anim 4s infinite linear;
  z-index: 2;
}

.loader-letter:nth-child(1)  { animation-delay: 0.1s; }
.loader-letter:nth-child(2)  { animation-delay: 0.205s; }
.loader-letter:nth-child(3)  { animation-delay: 0.31s; }
.loader-letter:nth-child(4)  { animation-delay: 0.415s; }
.loader-letter:nth-child(5)  { animation-delay: 0.521s; }
.loader-letter:nth-child(6)  { animation-delay: 0.626s; }
.loader-letter:nth-child(7)  { animation-delay: 0.731s; }
.loader-letter:nth-child(8)  { animation-delay: 0.837s; }
.loader-letter:nth-child(9)  { animation-delay: 0.942s; }
.loader-letter:nth-child(10) { animation-delay: 1.047s; }
.loader-letter:nth-child(11) { animation-delay: 1.153s; }
.loader-letter:nth-child(12) { animation-delay: 1.258s; }
.loader-letter:nth-child(13) { animation-delay: 1.363s; }
.loader-letter:nth-child(14) { animation-delay: 1.469s; }

.space-letter { width: 0.3em; }

@keyframes loader-letter-anim {
  0%   { filter: blur(0px); opacity: 0; }
  5%   { opacity: 1; text-shadow: 0 0 4px #8d8379; filter: blur(0px); transform: scale(1.1) translateY(-2px); }
  20%  { opacity: 0.2; filter: blur(0px); }
  100% { filter: blur(5px); opacity: 0; }
}

/* ── Navigation ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 1.25rem 0;
  transition: all 0.4s var(--ease);
}

#navbar.scrolled {
  background: rgba(8,11,18,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.85rem 0;
}

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

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}

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

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: var(--grad-primary);
  color: #fff !important;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem !important;
  transition: box-shadow 0.3s, transform 0.3s !important;
}

.nav-cta:hover { box-shadow: 0 4px 20px rgba(37,99,235,0.4); transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  z-index: 910;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all 0.35s var(--ease);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Side Nav ── */
.side-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 920;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s var(--ease);
}

.side-nav-overlay.active { opacity: 1; visibility: visible; }

.side-nav {
  position: fixed;
  top: 0; right: 0;
  width: min(320px, 85vw);
  height: 100dvh;
  background: var(--bg-elevated);
  border-left: 1px solid var(--glass-border);
  z-index: 930;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease-out);
}

.side-nav.active { transform: translateX(0); }

.side-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.side-nav-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.side-nav-close {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all 0.2s;
}

.side-nav-close:hover { background: rgba(239,68,68,0.15); color: #ef4444; border-color: rgba(239,68,68,0.3); }

.side-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.side-nav-links a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s;
}

.side-nav-links a i { width: 16px; color: var(--accent-blue); font-size: 0.85rem; }
.side-nav-links a:hover { background: var(--glass); color: var(--text-primary); }

.side-nav-footer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
}

.side-nav-social {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.side-nav-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all 0.2s;
}

.side-nav-social a:hover { background: rgba(37,99,235,0.15); color: var(--accent-blue); border-color: rgba(37,99,235,0.3); }

/* ── Hero ── */
#hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 0 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 40%, transparent 100%);
  opacity: 0.6;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.hero-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #2563eb, transparent);
  top: -100px; right: -100px;
  animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #4f7df0, transparent);
  bottom: -50px; left: -50px;
  animation: orbFloat 10s ease-in-out infinite reverse;
}

.hero-orb-3 {
  width: 320px; height: 320px;
  background: radial-gradient(circle, #06b6d4, transparent);
  top: 35%; left: 45%;
  opacity: 0.1;
  animation: orbFloat 12s ease-in-out infinite;
  animation-delay: -3s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(20px, -30px); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 50px;
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  color: var(--accent-sky);
  font-family: var(--font-mono);
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 7px; height: 7px;
  background: var(--accent-sky);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.hero-role-wrapper {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  min-height: 1.6em;
}

.hero-role-wrapper .prefix { color: var(--text-muted); }

#typed-text { color: var(--accent-cyan); }

.typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-socials a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all 0.25s var(--ease);
}

.hero-socials a:hover { background: rgba(37,99,235,0.15); color: var(--accent-blue); border-color: rgba(37,99,235,0.3); transform: translateY(-3px); }

/* Hero Avatar */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.avatar-container {
  position: relative;
  width: 380px;
  height: 380px;
}

.avatar-ring {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px solid transparent;
  background: linear-gradient(var(--bg-base), var(--bg-base)) padding-box,
              var(--grad-primary) border-box;
  animation: spin 12s linear infinite;
}

.avatar-ring-dots::before,
.avatar-ring-dots::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 12px var(--accent-blue);
}

.avatar-ring-dots::before { top: 0; left: 50%; transform: translate(-50%, -50%); }
.avatar-ring-dots::after  { bottom: 0; left: 50%; transform: translate(-50%, 50%); background: var(--accent-indigo); box-shadow: 0 0 12px var(--accent-indigo); }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.avatar-img {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 2px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.avatar-img i { font-size: 5rem; color: var(--text-muted); }

.floating-badge {
  position: absolute;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  animation: floatBadge 4s ease-in-out infinite;
  z-index: 2;
}

.floating-badge i { color: var(--accent-blue); }
.floating-badge-1 { top: 20px; left: -30px; animation-delay: 0s; }
.floating-badge-2 { top: 50%; right: -30px; transform: translateY(-50%); animation-delay: 1s; }
.floating-badge-3 { bottom: 20px; left: -20px; animation-delay: 2s; }

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.floating-badge-2 {
  animation: floatBadgeRight 4s ease-in-out infinite;
  animation-delay: 1s;
}

@keyframes floatBadgeRight {
  0%, 100% { transform: translateY(-50%); }
  50%       { transform: translateY(calc(-50% - 8px)); }
}

/* ── Stats ── */
#stats {
  padding: 4rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item { padding: 1.5rem 1rem; }

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ── About ── */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-image-wrap {
  width: 100%;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-image-wrap i { font-size: 4rem; color: var(--text-muted); }

.about-image-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(79,125,240,0.1));
}

.about-float-card {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  backdrop-filter: blur(16px);
}

.about-float-card .card-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-float-card .card-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.highlight-item i { color: var(--accent-blue); font-size: 0.85rem; }

/* ── Skills ── */
#skills { background: var(--bg-surface); }

.skills-categories {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.skill-category-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.75rem;
}

.skill-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  text-align: center;
  cursor: default;
  transition: all 0.3s var(--ease);
}

.skill-card:hover {
  background: var(--glass-hover);
  border-color: rgba(79,125,240,0.3);
  transform: translateY(-4px);
}

.skill-card i {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  display: block;
}

.skill-card-name {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Skill icon colors */
.c-blue i   { color: var(--accent-blue); }
.c-purple i { color: var(--accent-indigo); }
.c-cyan i   { color: var(--accent-cyan); }
.c-green i  { color: #10b981; }
.c-orange i { color: #f59e0b; }
.c-red i    { color: #ef4444; }
.c-pink i   { color: #ec4899; }

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

.service-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  transition: all 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  background: linear-gradient(135deg, rgba(37,99,235,0.1) 0%, rgba(56,189,248,0.06) 100%);
  border-color: rgba(56,189,248,0.3);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(37,99,235,0.15);
}

.service-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-blue);
  margin-bottom: 1.25rem;
  transition: all 0.3s;
}

.service-card:hover .service-icon {
  background: rgba(79,125,240,0.15);
  border-color: rgba(79,125,240,0.3);
  color: var(--accent-indigo);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Experience ── */
#experience { background: var(--bg-surface); }

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--accent-blue), var(--accent-indigo), transparent);
}

.timeline-item {
  position: relative;
  padding: 2rem;
  margin-bottom: 1.5rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
}

.timeline-item:hover { border-color: rgba(79,125,240,0.25); background: var(--glass-hover); }

.timeline-dot {
  position: absolute;
  left: -2.4rem;
  top: 2rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 12px rgba(37,99,235,0.6);
  border: 2px solid var(--bg-base);
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline-type {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-indigo);
  margin-bottom: 0.75rem;
  display: block;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Projects ── */
.projects-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  background: var(--glass);
  transition: all 0.25s;
}

.filter-btn:hover, .filter-btn.active {
  background: rgba(37,99,235,0.15);
  border-color: rgba(37,99,235,0.3);
  color: var(--accent-blue);
}

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

.project-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.35s var(--ease);
}

.project-card:hover {
  border-color: rgba(79,125,240,0.3);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.project-thumb {
  min-height: 300px;
  background: var(--bg-elevated);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-thumb-icon {
  font-size: 3rem;
  color: var(--text-muted);
  opacity: 0.4;
  position: relative;
  z-index: 1;
}

.project-preview {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: var(--bg-elevated);
}

.project-preview iframe {
  position: absolute;
  top: 0; left: 0;
  width: 1280px;
  height: 720px;
  border: 0;
  pointer-events: none;
  transform-origin: top left;
  filter: grayscale(20%) brightness(0.88) saturate(0.92);
  transition: filter 0.5s var(--ease);
}

.project-card:hover .project-preview iframe {
  filter: grayscale(0%) brightness(1) saturate(1);
}

.preview-badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: rgba(8,11,18,0.65);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(-6px);
  transition: all 0.3s var(--ease);
  z-index: 2;
}

.preview-badge i { color: var(--accent-sky); }

.project-card:hover .preview-badge {
  opacity: 1;
  transform: translateY(0);
}

.project-thumb-overlay {
  position: absolute;
  inset: 0;
  background: var(--grad-primary);
  opacity: 0.06;
  transition: opacity 0.3s;
}

.project-card:hover .project-thumb-overlay { opacity: 0.12; }

.project-body { padding: 1.5rem; }

.project-category {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--accent-indigo);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.project-tag {
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.15);
  color: var(--accent-blue);
  font-family: var(--font-mono);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-blue);
  transition: gap 0.2s;
}

.project-link:hover { gap: 0.65rem; }

/* ── Testimonials ── */
#testimonials { background: var(--bg-surface); }

.testimonials-slider {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s var(--ease);
}

.testimonial-slide {
  min-width: 100%;
  padding: 1rem;
}

.testimonial-card {
  max-width: 780px;
  margin: 0 auto;
  padding: 2.5rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.testimonial-quote {
  font-size: 3rem;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  font-family: Georgia, serif;
}

.testimonial-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.author-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.author-stars { color: #f59e0b; font-size: 0.8rem; margin-top: 0.15rem; }

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.slider-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  transition: all 0.25s;
}

.slider-btn:hover { background: rgba(37,99,235,0.15); color: var(--accent-blue); border-color: rgba(37,99,235,0.3); }

.slider-dots { display: flex; gap: 0.5rem; }

.slider-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  border: none;
  transition: all 0.25s;
}

.slider-dot.active {
  background: var(--accent-blue);
  width: 24px;
  border-radius: 4px;
}

/* ── Clients ── */
#clients { padding: 4rem 0; overflow: hidden; }

.clients-header { text-align: center; margin-bottom: 2.5rem; }

.clients-track-wrap { overflow: hidden; }

.clients-track {
  display: flex;
  gap: 1.5rem;
  animation: clientScroll 30s linear infinite;
  width: max-content;
}

.clients-track:hover { animation-play-state: paused; }

.client-logo {
  width: 160px;
  height: 70px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
  padding: 1rem;
  transition: all 0.3s;
}

.client-logo:hover { border-color: rgba(37,99,235,0.3); color: var(--text-secondary); }

@keyframes clientScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Contact ── */
#contact { background: var(--bg-surface); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.contact-methods { display: flex; flex-direction: column; gap: 0.75rem; }

.contact-method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: all 0.2s;
}

.contact-method:hover { background: var(--glass-hover); border-color: rgba(37,99,235,0.25); color: var(--text-primary); }
.contact-method i { color: var(--accent-blue); width: 18px; text-align: center; }

.contact-form { padding: 2rem; }

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
  resize: none;
}

.form-control:focus {
  border-color: rgba(37,99,235,0.5);
  background: rgba(37,99,235,0.04);
}

.form-control::placeholder { color: var(--text-muted); }

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

.form-msg {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-top: 1rem;
  display: none;
}

.form-msg.success {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.2);
  color: #10b981;
  display: block;
}

.form-msg.error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: #ef4444;
  display: block;
}

/* ── Footer ── */
footer {
  background: var(--bg-base);
  border-top: 1px solid var(--glass-border);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.footer-brand-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.footer-social { display: flex; gap: 0.6rem; }

.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all 0.2s;
}

.footer-social a:hover { background: rgba(37,99,235,0.15); color: var(--accent-blue); border-color: rgba(37,99,235,0.3); }

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-col ul a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-copy a { color: var(--accent-blue); }

.back-to-top {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: all 0.25s;
}

.back-to-top:hover { background: rgba(37,99,235,0.15); color: var(--accent-blue); transform: translateY(-3px); }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

.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; }

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

  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-visual { order: -1; }
  .avatar-container { width: 260px; height: 260px; }
  .floating-badge-1, .floating-badge-2, .floating-badge-3 { display: none; }

  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  #about .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 400px; margin: 0 auto; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .project-thumb { min-height: 165px; }
}

@media (max-width: 640px) {
  :root { --section-py: 4rem; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .about-highlights { grid-template-columns: 1fr; }

  .section-title { font-size: 1.75rem; }
  .hero-name { font-size: 2.25rem; }
  .project-thumb { min-height: 190px; }

  .about-float-card { display: none; }
}

/* ── Small / Compact Mobile Screens ── */
@media (max-width: 420px) {
  .container { padding: 0 1.15rem; }

  :root { --section-py: 3.25rem; }

  .hero-name { font-size: 1.9rem; }
  .hero-role-wrapper { font-size: 0.85rem; }
  .hero-desc { font-size: 0.92rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }

  .avatar-container { width: 200px; height: 200px; }

  .hero-orb-1, .hero-orb-2 { width: 260px; height: 260px; filter: blur(50px); }
  .hero-orb-3 { display: none; }
  .hero-bg::before { background-size: 36px 36px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
  .stat-number { font-size: 1.85rem; }

  .section-title { font-size: 1.5rem; }
  .section-subtitle { font-size: 0.92rem; }

  .skills-grid { grid-template-columns: repeat(auto-fill, minmax(105px, 1fr)); gap: 0.6rem; }
  .skill-card { padding: 0.75rem; }
  .skill-card i { font-size: 1.25rem; }
  .skill-card-name { font-size: 0.72rem; }

  .service-card, .timeline-item { padding: 1.5rem; }

  .testimonial-card { padding: 1.75rem; }
  .testimonial-text { font-size: 0.92rem; }

  .contact-form { padding: 1.5rem; }
  .project-thumb { min-height: 190px; }

  .client-logo { width: 130px; height: 60px; font-size: 0.78rem; }
}

/* ── Testimonial Popup Modal ── */
#testimonial-modal {
  position: fixed;
  inset: 0;
  z-index: 9500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}

#testimonial-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 7, 16, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.modal-box {
  position: relative;
  z-index: 1;
  max-width: 640px;
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(56,189,248,0.08);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.4s var(--ease-out);
}

#testimonial-modal.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.modal-close:hover {
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.3);
  color: #ef4444;
}

.modal-quote {
  font-size: 3.5rem;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  font-family: Georgia, serif;
}

.modal-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 1.75rem;
  font-style: italic;
}

.modal-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--glass-border);
}

.modal-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}

.modal-author-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.modal-stars { color: #f59e0b; font-size: 0.85rem; }

/* Make testimonial cards feel clickable */
.testimonial-card { cursor: pointer; }

.testimonial-card:hover {
  border-color: rgba(56,189,248,0.25);
  background: rgba(255,255,255,0.06);
}

.testimonial-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--accent-sky);
  font-family: var(--font-mono);
  margin-top: 0.85rem;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.testimonial-card:hover .testimonial-read-more { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}