/* ============================================================
   Mohamed Magdy — Portfolio
   Brand: Deep Teal #1A535C · Teal #28AFB0 · Amber #F6AE2D
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  --c-deep-teal: #1A535C;
  --c-teal: #28AFB0;
  --c-amber: #F6AE2D;

  --c-bg: #F4F9F9;
  --c-bg-elev: #FFFFFF;
  --c-bg-soft: #ECF4F4;
  --c-text: #0D1B1E;
  --c-text-soft: #3F5358;
  --c-text-mute: #6C7E82;
  --c-border: rgba(26, 83, 92, 0.12);
  --c-border-strong: rgba(26, 83, 92, 0.22);
  --c-shadow: 0 10px 30px rgba(13, 27, 30, 0.06);
  --c-shadow-lg: 0 20px 60px rgba(13, 27, 30, 0.10);
  --c-overlay: rgba(244, 249, 249, 0.78);

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  --t-fast: 160ms cubic-bezier(.2,.7,.3,1);
  --t-base: 280ms cubic-bezier(.2,.7,.3,1);
  --t-slow: 480ms cubic-bezier(.2,.7,.3,1);

  --container: 1200px;
  --nav-h: 72px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

[data-theme="dark"] {
  --c-bg: #0D1B1E;
  --c-bg-elev: #122428;
  --c-bg-soft: #0A1518;
  --c-text: #F4F9F9;
  --c-text-soft: #B7C7CB;
  --c-text-mute: #82949A;
  --c-border: rgba(40, 175, 176, 0.18);
  --c-border-strong: rgba(40, 175, 176, 0.34);
  --c-shadow: 0 10px 30px rgba(0, 0, 0, 0.30);
  --c-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
  --c-overlay: rgba(13, 27, 30, 0.78);
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--t-base), color var(--t-base);
}
img, svg { display: block; max-width: 100%; }
a { color: var(--c-teal); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-amber); }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; margin: 0; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--c-overlay);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), box-shadow var(--t-base), background var(--t-base);
}
.nav.scrolled { border-bottom-color: var(--c-border); box-shadow: 0 4px 20px rgba(0,0,0,0.04); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 4px 2px 6px;
  color: var(--c-text);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.015em;
  line-height: 1;
  white-space: nowrap;
  transition: color var(--t-fast);
}
.nav-logo-name { display: inline-flex; align-items: baseline; gap: 6px; }
.nav-logo-accent {
  background: linear-gradient(135deg, var(--c-teal) 0%, var(--c-amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 900;
}
.nav-logo::after {
  content: '';
  position: absolute;
  left: 2px;
  right: 38%;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--c-deep-teal), var(--c-teal), var(--c-amber));
  transition: right var(--t-base);
}
.nav-logo:hover::after { right: 2px; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  border-radius: var(--r-pill);
  color: var(--c-text-soft);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-link:hover { color: var(--c-text); background: var(--c-bg-soft); }
.nav-link.active { color: var(--c-deep-teal); background: rgba(40, 175, 176, 0.12); }
[data-theme="dark"] .nav-link.active { color: var(--c-teal); background: rgba(40,175,176,0.10); }
.nav-link-cta {
  background: var(--c-deep-teal);
  color: #fff !important;
  padding: 9px 16px;
}
.nav-link-cta:hover { background: var(--c-teal); color: #fff !important; }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.theme-toggle {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  color: var(--c-text-soft);
  transition: transform var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.theme-toggle:hover { color: var(--c-amber); border-color: var(--c-amber); transform: rotate(8deg); }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.hamburger {
  display: none;
  width: 38px; height: 38px;
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 9px;
  flex-direction: column;
  justify-content: space-between;
}
.hamburger span {
  display: block; height: 2px; width: 100%;
  background: var(--c-text); border-radius: 2px;
  transition: transform var(--t-fast), opacity var(--t-fast);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 60px) 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}
.hero::before {
  width: 480px; height: 480px;
  background: var(--c-teal);
  top: -120px; right: -120px;
}
.hero::after {
  width: 360px; height: 360px;
  background: var(--c-amber);
  bottom: -100px; left: -100px;
  opacity: 0.25;
}
[data-theme="dark"] .hero::before { opacity: 0.20; }
[data-theme="dark"] .hero::after  { opacity: 0.12; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-name {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  background: linear-gradient(135deg, var(--c-deep-teal) 0%, var(--c-teal) 60%, var(--c-amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 14px;
}
[data-theme="dark"] .hero-name {
  background: linear-gradient(135deg, var(--c-teal) 0%, var(--c-amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-title {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 600;
  color: var(--c-text-soft);
  margin-bottom: 18px;
}
.hero-tagline {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--c-text-mute);
  max-width: 560px;
  margin-bottom: 28px;
}

.hero-stats {
  display: flex; flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}
.stat-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  padding: 9px 16px;
  font-size: 13px;
  color: var(--c-text-soft);
  font-weight: 500;
  transition: transform var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}
.stat-pill:hover { transform: translateY(-2px); border-color: var(--c-teal); color: var(--c-text); }
.stat-pill strong { color: var(--c-deep-teal); font-weight: 800; }
[data-theme="dark"] .stat-pill strong { color: var(--c-teal); }

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--c-deep-teal); color: #fff; }
.btn-primary:hover { background: var(--c-teal); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(40,175,176,0.32); }
.btn-ghost { background: transparent; color: var(--c-text); border-color: var(--c-border-strong); }
.btn-ghost:hover { color: var(--c-deep-teal); border-color: var(--c-deep-teal); transform: translateY(-2px); }
[data-theme="dark"] .btn-ghost:hover { color: var(--c-teal); border-color: var(--c-teal); }
.btn-amber { background: var(--c-amber); color: #2a1f00; }
.btn-amber:hover { color: #2a1f00; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(246,174,45,0.36); }
.btn-block { width: 100%; }

/* Profile */
.hero-right { display: flex; justify-content: center; }
.profile-frame {
  position: relative;
  width: clamp(220px, 28vw, 340px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
}
.profile-ring {
  position: absolute; inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 90deg, var(--c-teal), var(--c-amber), var(--c-deep-teal), var(--c-teal));
  animation: spin 14s linear infinite;
  filter: blur(0.5px);
  z-index: 0;
}
.profile-frame::after {
  content: '';
  position: absolute; inset: -2px;
  border-radius: 50%;
  background: var(--c-bg);
  z-index: 1;
}
.profile-photo, .profile-fallback-text {
  position: absolute; inset: 6px;
  border-radius: 50%;
  z-index: 2;
  width: calc(100% - 12px); height: calc(100% - 12px);
  object-fit: cover;
  border: 4px solid var(--c-bg);
  box-shadow: var(--c-shadow-lg);
}
.profile-fallback-text {
  display: none;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--c-deep-teal), var(--c-teal));
  color: var(--c-amber);
  font-size: clamp(64px, 10vw, 100px);
  font-weight: 900;
  letter-spacing: -2px;
}
.profile-photo.profile-fallback { display: none; }
.profile-photo.profile-fallback ~ .profile-fallback-text { display: flex; }

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

.scroll-cue {
  position: absolute;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--c-text-mute);
  border-radius: 14px;
  display: flex; justify-content: center;
  z-index: 1;
  opacity: 0.6;
  transition: opacity var(--t-fast), border-color var(--t-fast);
}
.scroll-cue:hover { opacity: 1; border-color: var(--c-teal); }
.scroll-cue span {
  display: block; width: 3px; height: 8px;
  background: var(--c-text-mute);
  margin-top: 8px;
  border-radius: 2px;
  animation: cue 1.6s ease-in-out infinite;
}
@keyframes cue { 0%,100% { transform: translateY(0); opacity: 1; } 50% { transform: translateY(8px); opacity: 0.3; } }

/* ---------- SECTIONS ---------- */
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--c-bg-soft); }

.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 14px;
}
.section-rule {
  width: 56px; height: 4px;
  background: linear-gradient(90deg, var(--c-deep-teal), var(--c-amber));
  border-radius: 2px;
  margin: 0 auto 16px;
}
.section-sub { color: var(--c-text-mute); font-size: 1.02rem; }

/* ---------- ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-deep-teal), var(--c-teal), var(--c-amber));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform var(--t-base);
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--c-shadow); border-color: var(--c-border-strong); }
.about-card:hover::before { transform: scaleX(1); }
.about-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--c-deep-teal);
}
[data-theme="dark"] .about-card h3 { color: var(--c-teal); }
.about-card p { color: var(--c-text-soft); font-size: 0.98rem; }

/* ---------- SKILLS ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.skill-col {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 26px 22px;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.skill-col:hover { transform: translateY(-4px); box-shadow: var(--c-shadow); border-color: var(--c-teal); }
.skill-col h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-amber);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--c-border-strong);
}
.tool {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 8px;
  border-radius: var(--r-sm);
  transition: background var(--t-fast), transform var(--t-fast);
  position: relative;
}
.tool:hover { background: var(--c-bg-soft); transform: translateX(4px); }
.tool-icon {
  width: 24px; height: 24px;
  flex: none;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.tool-name { font-size: 14px; font-weight: 500; color: var(--c-text); }
.tool-badge {
  margin-left: auto;
  background: var(--c-amber);
  color: #2a1f00;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--r-pill);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---------- CASE STUDIES ---------- */
.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: 980px;
  margin: 0 auto;
}
.case-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.case-card::before {
  content: '';
  position: absolute; top: 0; bottom: 0; left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--c-deep-teal), var(--c-amber));
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--c-shadow-lg); border-color: var(--c-teal); }
.case-head {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-bottom: 8px;
}
.case-company { font-size: 1.4rem; font-weight: 800; }
.case-loc {
  font-size: 12px;
  color: var(--c-text-mute);
  background: var(--c-bg-soft);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  font-weight: 500;
}
.case-industry {
  display: inline-block;
  background: rgba(40,175,176,0.12);
  color: var(--c-deep-teal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  margin-bottom: 14px;
}
[data-theme="dark"] .case-industry { color: var(--c-teal); }
.case-problem { color: var(--c-text-soft); font-style: italic; margin-bottom: 18px; }

.case-built-h, .case-results-h {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-amber);
  margin-bottom: 10px;
}
.case-built {
  margin-bottom: 22px;
}
.case-built li {
  position: relative;
  padding-left: 24px;
  color: var(--c-text-soft);
  margin-bottom: 8px;
  font-size: 0.96rem;
}
.case-built li::before {
  content: '';
  position: absolute;
  left: 4px; top: 11px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-teal);
}
.case-results { display: flex; flex-wrap: wrap; gap: 8px; }
.result-pill {
  background: linear-gradient(135deg, var(--c-deep-teal), var(--c-teal));
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  box-shadow: 0 4px 14px rgba(40,175,176,0.20);
}
.result-pill:nth-child(2n) {
  background: linear-gradient(135deg, var(--c-amber), #e8941a);
  color: #2a1f00;
  box-shadow: 0 4px 14px rgba(246,174,45,0.24);
}

/* Case study media gallery */
.case-media-h {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-amber);
  margin: 22px 0 10px;
}
.case-media {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.case-media-item {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  text-decoration: none;
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.case-media-item:hover {
  transform: translateY(-2px);
  border-color: var(--c-teal);
  box-shadow: 0 10px 24px rgba(40,175,176,0.18);
}
.case-media-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.case-media-item.video {
  background: linear-gradient(135deg, var(--c-deep-teal), #0a2d33);
}
.case-media-item.video img {
  opacity: 0.78;
  transition: opacity var(--t-fast);
}
.case-media-item.video:hover img { opacity: 1; }
.case-media-item .play-overlay {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.92);
  color: var(--c-deep-teal);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.30);
  transition: transform var(--t-fast);
  pointer-events: none;
}
.case-media-item.video:hover .play-overlay {
  transform: translate(-50%, -50%) scale(1.1);
}
.case-media-item .play-overlay svg { width: 18px; height: 18px; margin-left: 2px; }
.case-media-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 10px;
  font-size: 11px;
  color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,0.78), rgba(0,0,0,0));
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  pointer-events: none;
}
@media (max-width: 560px) {
  .case-media { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
}

/* ===========================================================
   Featured Posts (LinkedIn) — horizontal carousel
   =========================================================== */
.hidden { display: none !important; }

.posts-empty-msg {
  text-align: center;
  color: var(--c-text-mute);
  padding: 30px 0;
}

.posts-carousel {
  position: relative;
  margin: 0 auto;
}
.posts-viewport {
  overflow: hidden;
  border-radius: var(--r-md);
}
.posts-track {
  display: flex;
  gap: 16px;
  transition: transform 380ms cubic-bezier(.2,.7,.3,1);
  will-change: transform;
  touch-action: pan-y;
}
.post-card {
  flex: 0 0 calc((100% - 32px) / 3);   /* 3 visible: (100% - 2*16px gap) / 3 */
  background: #FFFFFF;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(13,27,30,0.05);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), transform var(--t-fast);
}
.post-card:hover {
  border-color: var(--c-teal);
  box-shadow: 0 8px 20px rgba(40,175,176,0.16);
  transform: translateY(-2px);
}
[data-theme="dark"] .post-card {
  background: #0D2B30;
  border-color: rgba(40,175,176,0.16);
  box-shadow: 0 4px 12px rgba(0,0,0,0.28);
}
.post-card iframe {
  display: block;
  border: 0;
  width: 100%;
  height: 360px;
  background: #fff;
}
[data-theme="dark"] .post-card iframe { background: #0D2B30; }

/* Arrows */
.posts-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--c-teal);
  color: #fff;
  border: 0;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  z-index: 5;
  transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  box-shadow: 0 6px 16px rgba(0,0,0,0.18);
}
.posts-arrow:hover {
  background: var(--c-deep-teal);
  transform: translateY(-50%) scale(1.06);
  box-shadow: 0 10px 22px rgba(40,175,176,0.30);
}
.posts-arrow:disabled {
  opacity: 0;
  pointer-events: none;
}
.posts-arrow svg { width: 18px; height: 18px; }
.posts-prev { left: -22px; }
.posts-next { right: -22px; }

/* Dot indicators */
.posts-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}
.posts-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(40, 175, 176, 0.30);
  border: 0;
  cursor: pointer;
  padding: 0;
  transition: background var(--t-fast), transform var(--t-fast), width var(--t-fast);
}
.posts-dot:hover { background: rgba(40, 175, 176, 0.55); }
.posts-dot.active {
  background: var(--c-amber);
  transform: scale(1.25);
}

/* Responsive — match the tile-count rules */
@media (max-width: 1024px) {
  .post-card { flex: 0 0 calc((100% - 16px) / 2); }    /* 2 visible, single 16px gap */
  .post-card iframe { height: 380px; }
}
@media (max-width: 720px) {
  .post-card { flex: 0 0 100%; }                        /* 1 visible */
  .post-card iframe { height: 420px; }                  /* a touch more on phone for readability */
  .posts-arrow { display: none; }
  .posts-prev, .posts-next { display: none; }
}

/* Lightbox */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(13, 27, 30, 0.94);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  padding: 24px;
}
.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}
.lightbox .lb-figure {
  margin: 0;
  max-width: 92vw;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.lightbox img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--r-md);
  box-shadow: 0 30px 60px rgba(0,0,0,0.50);
}
.lb-caption {
  color: #fff;
  font-size: 14px;
  text-align: center;
  max-width: 80ch;
  opacity: 0.9;
  min-height: 1.2em;
}
.lb-close, .lb-prev, .lb-next {
  position: absolute;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  color: #fff;
  width: 44px; height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--t-fast), transform var(--t-fast);
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(255,255,255,0.22);
  transform: scale(1.05);
}
.lb-close { top: 18px; right: 18px; }
.lb-prev  { left: 18px; top: 50%; transform: translateY(-50%); }
.lb-next  { right: 18px; top: 50%; transform: translateY(-50%); }
.lb-prev:hover { transform: translateY(-50%) scale(1.05); }
.lb-next:hover { transform: translateY(-50%) scale(1.05); }
.lb-close svg, .lb-prev svg, .lb-next svg { width: 18px; height: 18px; }
.lightbox.solo .lb-prev, .lightbox.solo .lb-next { display: none; }
@media (max-width: 560px) {
  .lb-prev, .lb-next { display: none; }
}

/* ---------- TIMELINE ---------- */
.timeline {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-deep-teal) 0%, var(--c-teal) 50%, var(--c-amber) 100%);
  border-radius: 2px;
}
.t-item { position: relative; padding-left: 26px; margin-bottom: 36px; }
.t-item::before {
  content: '';
  position: absolute;
  left: -2px; top: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 3px solid var(--c-teal);
  box-shadow: 0 0 0 4px rgba(40,175,176,0.12);
  transition: transform var(--t-fast), background var(--t-fast);
}
.t-item:hover::before { transform: scale(1.18); background: var(--c-amber); border-color: var(--c-amber); }
.t-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 22px 24px;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.t-card:hover { transform: translateX(4px); box-shadow: var(--c-shadow); border-color: var(--c-teal); }
.t-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.t-role { font-size: 1.1rem; font-weight: 700; }
.t-period { font-size: 13px; color: var(--c-text-mute); font-weight: 500; }
.t-meta {
  font-size: 13px; color: var(--c-teal);
  font-weight: 600; margin-bottom: 12px;
}
.t-summary { color: var(--c-text-soft); margin-bottom: 12px; font-size: 0.96rem; }
.t-key {
  font-size: 12px;
  color: var(--c-text-mute);
  padding-top: 10px;
  border-top: 1px dashed var(--c-border-strong);
  font-weight: 500;
}

/* ---------- CLIENTS ---------- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
  justify-items: center;
}
.client-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: 50%;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 140px;
  display: flex; align-items: center; justify-content: center;
  padding: 18%;
  box-shadow: var(--c-shadow);
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base), background var(--t-base);
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .client-card {
  background: #FFFFFF;  /* white inside the circle so colored logos pop on dark BG */
  border-color: rgba(255,255,255,0.10);
}
.client-card:hover {
  transform: translateY(-4px) scale(1.04);
  border-color: var(--c-teal);
  box-shadow: 0 14px 30px rgba(40,175,176,0.20);
}
.client-card img {
  max-width: 100%; max-height: 100%;
  width: 100%; height: 100%;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.75);
  transition: filter var(--t-base);
}
.client-card:hover img { filter: grayscale(0) opacity(1); }
.client-fallback {
  font-weight: 700; color: var(--c-text-mute); font-size: 0.85rem; letter-spacing: 0.04em;
  text-align: center;
}

/* ---------- CERTIFICATIONS ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.cert-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 26px;
  text-align: center;
  position: relative;
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.cert-card:hover { transform: translateY(-4px); border-color: var(--c-teal); box-shadow: var(--c-shadow); }
.cert-card.highlight {
  border-color: var(--c-amber);
  background: linear-gradient(180deg, var(--c-bg-elev) 0%, rgba(246,174,45,0.06) 100%);
}
.cert-card.highlight::after {
  content: 'Featured';
  position: absolute; top: 12px; right: 12px;
  background: var(--c-amber);
  color: #2a1f00;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: var(--r-pill);
  text-transform: uppercase;
}
.cert-icon {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  padding: 12px;
  background: var(--c-bg-soft);
  border-radius: var(--r-md);
}
.cert-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.cert-issuer { font-size: 13px; color: var(--c-text-mute); margin-bottom: 12px; }
.cert-desc { font-size: 12px; color: var(--c-text-soft); margin-bottom: 14px; }
.cert-verified {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(40,175,176,0.12);
  color: var(--c-deep-teal);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
[data-theme="dark"] .cert-verified { color: var(--c-teal); }
.cert-verified svg { width: 12px; height: 12px; }

/* ---------- CONTACT ---------- */
.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-list-row {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 18px;
  margin: 0 auto;
  max-width: 960px;
}
.contact-list-row li { display: flex; flex: 0 1 280px; }
.contact-list-row .contact-item {
  width: 100%;
  min-height: 76px;
  justify-content: flex-start;
  padding: 16px 22px;
}
.contact-item {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  color: var(--c-text);
  transition: transform var(--t-fast), border-color var(--t-fast), background var(--t-fast);
  font-weight: 500;
  font-size: 15px;
}
.contact-item:hover { transform: translateX(4px); border-color: var(--c-teal); color: var(--c-teal); }
.contact-icon {
  width: 38px; height: 38px;
  flex: none;
  background: var(--c-bg-soft);
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--c-deep-teal);
}
[data-theme="dark"] .contact-icon { color: var(--c-teal); }
.contact-icon svg { width: 18px; height: 18px; }
.contact-meta { display: flex; flex-direction: column; line-height: 1.3; }
.contact-meta small { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-text-mute); font-weight: 600; }

/* ---------- FOOTER ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--c-border);
  background: var(--c-bg-soft);
}
.footer-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px;
}
.footer-copy { color: var(--c-text-mute); font-size: 14px; }
.footer-links { display: flex; gap: 8px; flex-wrap: wrap; }
.footer-links a {
  font-size: 13px;
  color: var(--c-text-soft);
  padding: 6px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-border);
}
.footer-links a:hover { color: var(--c-deep-teal); border-color: var(--c-deep-teal); }
[data-theme="dark"] .footer-links a:hover { color: var(--c-teal); border-color: var(--c-teal); }

/* ---------- ANIMATIONS ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(.2,.7,.3,1), transform 700ms cubic-bezier(.2,.7,.3,1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 80ms; }
.reveal.delay-2 { transition-delay: 160ms; }
.reveal.delay-3 { transition-delay: 240ms; }

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

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(4, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--c-bg-elev);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 16px 18px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-base), transform var(--t-base);
    box-shadow: var(--c-shadow-lg);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link {
    border-radius: var(--r-sm);
    padding: 12px 14px;
    font-size: 15px;
  }
  .nav-link-cta { margin-top: 6px; text-align: center; }
  .hamburger { display: flex; }

  .hero { padding-top: calc(var(--nav-h) + 30px); padding-bottom: 60px; min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; text-align: center; }
  .hero-tagline { margin-left: auto; margin-right: auto; }
  .hero-stats, .hero-cta { justify-content: center; }
  .hero-right { order: -1; }
  .scroll-cue { display: none; }

  .section { padding: 70px 0; }
  .section-head { margin-bottom: 40px; }
}
@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .skills-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: 1fr; }
  .case-card { padding: 26px 22px; }
  .nav-logo { font-size: 15px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* RTL helpers */
[dir="rtl"] .case-card::before { left: auto; right: 0; }
[dir="rtl"] .timeline { padding-left: 0; padding-right: 30px; }
[dir="rtl"] .timeline::before { left: auto; right: 8px; }
[dir="rtl"] .t-item { padding-left: 0; padding-right: 26px; }
[dir="rtl"] .t-item::before { left: auto; right: -2px; }
[dir="rtl"] .case-built li { padding-left: 0; padding-right: 24px; }
[dir="rtl"] .case-built li::before { left: auto; right: 4px; }