/* ===================================================
   MURATCAN İÇDAĞ — PREMIUM EDITORIAL WEBSITE
   Design Philosophy: Apple-inspired minimal excellence
   Palette: Warm off-white · Gold accent · Near-black
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600&display=swap');

/* ─── DESIGN TOKENS ─── */
:root {
  --bg:           #F8F7F4;
  --bg-alt:       #F1EFE9;
  --surface:      #FFFFFF;
  --border:       #E4E1DA;
  --border-light: #EDEBE6;

  --text-primary:   #0E0D0B;
  --text-secondary: #5C5852;
  --text-tertiary:  #9E9890;

  --accent:       #B8894A;
  --accent-light: rgba(184,137,74,0.12);
  --accent-hover: #A07840;

  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans:  'Inter', -apple-system, system-ui, sans-serif;

  --max-w:   1160px;
  --nav-h:   72px;
  --r-sm:    8px;
  --r-md:    14px;
  --r-lg:    20px;
  --r-full:  100px;

  --ease:       cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:   cubic-bezier(0.0, 0.0, 0.2, 1);
  --ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.05);
}

/* ─── 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 {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  line-height: 1.6;
}

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

/* ─── TYPOGRAPHY SCALE ─── */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

em { font-style: italic; }

/* ─── LAYOUT HELPERS ─── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

.section { padding: 128px 0; }

.section-alt { background: var(--bg-alt); }

.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: block;
}

.section-title {
  font-size: clamp(2.25rem, 3.5vw, 3.25rem);
  color: var(--text-primary);
  margin-bottom: 72px;
}

.section-title em { color: var(--accent); }

/* ─── NAVBAR ─── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

#navbar.scrolled {
  background: rgba(248, 247, 244, 0.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  transition: opacity 0.2s;
  flex-shrink: 0;
}
.nav-logo:hover { opacity: 0.7; }

.nav-links {
  display: flex;
  gap: 36px;
  margin-left: auto;
  margin-right: 32px;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--text-primary);
  transform: scaleX(0);
  transition: transform 0.2s var(--ease);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { transform: scaleX(1); }

.btn-nav {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  border: 1.5px solid var(--text-primary);
  padding: 8px 20px;
  border-radius: var(--r-full);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
  flex-shrink: 0;
  letter-spacing: 0.02em;
}
.btn-nav:hover { background: var(--text-primary); color: var(--bg); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s var(--ease);
  transform-origin: center;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.active span:nth-child(2) { transform: rotate(-45deg) translate(4px, -4px); }

/* ─── HERO ─── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

/* subtle warm glow in background */
#hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,137,74,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 40px 100px;
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}



.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 36px;
  padding: 7px 16px;
  border: 1px solid rgba(184,137,74,0.35);
  border-radius: var(--r-full);
  background: var(--accent-light);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}

.hero-title {
  font-size: clamp(3rem, 5.5vw, 4.75rem);
  line-height: 1.06;
  color: var(--text-primary);
  margin-bottom: 0;
}

.hero-title em {
  color: var(--accent);
  font-style: italic;
}

.hero-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.375rem, 2.5vw, 2rem);
  color: var(--text-secondary);
  margin-top: 12px;
  margin-bottom: 52px;
  line-height: 1.35;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 52px;
}

.stat-item { text-align: left; }

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--text-primary);
  color: var(--bg);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: var(--r-full);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
  letter-spacing: 0.01em;
}
.btn-primary:hover { background: #2d2c2a; transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  padding: 14px 0;
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-outline {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
  padding: 12px 28px;
  border-radius: var(--r-full);
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.btn-outline:hover { border-color: var(--text-primary); background: var(--text-primary); color: var(--bg); }

.btn-primary-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--text-primary);
  color: var(--bg);
  font-size: 1rem;
  font-weight: 500;
  padding: 16px 36px;
  border-radius: var(--r-full);
  transition: background 0.2s, transform 0.2s;
}
.btn-primary-large:hover { background: #2d2c2a; transform: translateY(-2px); }

.btn-outline-large {
  display: inline-block;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
  padding: 16px 36px;
  border-radius: var(--r-full);
  transition: border-color 0.2s, color 0.2s;
}
.btn-outline-large:hover { border-color: var(--text-primary); color: var(--text-primary); }

/* ─── HERO VISUAL ─── */
.hero-visual { position: relative; display: flex; justify-content: flex-end; }

.hero-img-wrap {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 3/4;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.12), 0 8px 32px rgba(0, 0, 0, 0.08);
  border: 4px solid var(--surface);
  transform: translateZ(0); /* Hardware acceleration */
  transition: transform 0.6s var(--ease-spring), box-shadow 0.6s var(--ease);
}

.hero-img-wrap:hover {
  transform: translateY(-8px) translateZ(0);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.16), 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* subtle warm overlay on photo for editorial feel */
.hero-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(14,13,11,0) 50%, rgba(14,13,11,0.2) 100%);
  pointer-events: none;
  border-radius: 20px;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.8s var(--ease-spring), filter 0.8s;
  /* subtle contrast bump for professional look */
  filter: contrast(1.05) saturate(0.95);
}

.hero-img-wrap:hover .hero-img {
  transform: scale(1.04);
  filter: contrast(1.1) saturate(1.05);
}

/* scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--border), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  30%, 70% { opacity: 1; transform: scaleY(1); }
}

/* ─── TRUST BAND (MARQUEE) ─── */
#trust {
  padding: 44px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}

.trust-label {
  text-align: center;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

.marquee-wrap {
  overflow: hidden;
  position: relative;
}

.marquee-wrap::before,
.marquee-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}
.marquee-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--surface) 20%, transparent 100%);
}
.marquee-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--surface) 20%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 48px;
  animation: marquee-scroll 28s linear infinite;
  width: max-content;
  padding: 4px 0;
}

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

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

.logo-item {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-tertiary);
  white-space: nowrap;
  transition: color 0.2s;
}
.logo-item:hover { color: var(--text-primary); }

.logo-sep {
  font-size: 1.25rem;
  color: var(--border);
  font-weight: 300;
}

/* ─── EXPERTISE ─── */
#expertise { padding-bottom: 128px; }

.expertise-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  border-top: 1px solid var(--border);
  padding-top: 64px;
}

.expertise-title {
  font-size: clamp(1.625rem, 2.5vw, 2.25rem);
  margin-bottom: 32px;
  color: var(--text-primary);
}
.expertise-title em { color: var(--accent); }

.expertise-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.expertise-list li {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-secondary);
  padding-left: 20px;
  border-left: 2px solid var(--accent);
  position: relative;
}

/* ─── CERTIFICATIONS ─── */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 20px 22px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease-spring);
}

.cert-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm), 0 0 0 3px var(--accent-light);
  transform: translateY(-3px);
}

.cert-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--r-sm);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.cert-card h3 {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
  line-height: 1.3;
}

.cert-card p {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  line-height: 1.3;
}

/* ─── SERVICES ─── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease-spring);
}

.service-card:hover {
  border-color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.service-card.service-featured {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg);
}

.service-card.service-featured:hover {
  border-color: var(--text-primary);
  box-shadow: var(--shadow-lg);
}

.service-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--r-full);
  white-space: nowrap;
}

.service-num {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  color: var(--accent);
  line-height: 1;
}

.service-card h3 {
  font-size: 1.25rem;
  line-height: 1.2;
}

.service-card > p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
  flex-grow: 0;
}

.service-featured > p { color: rgba(248,247,244,0.65); }

.service-includes {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  margin-top: 4px;
}

.service-includes li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.service-includes li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  top: 1px;
}

.service-featured .service-includes li { color: rgba(248,247,244,0.65); }

.btn-service {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 8px;
  transition: letter-spacing 0.2s;
}
.btn-service:hover { letter-spacing: 0.03em; }

.service-featured .btn-service { color: var(--accent); }

/* ─── TESTIMONIALS ─── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.testimonial-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.testimonial-card.featured-case {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg);
}

.case-metric {
  font-family: var(--font-serif);
  font-size: 4.5rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 20px;
}

.case-desc {
  font-size: 1rem;
  line-height: 1.72;
  color: rgba(248,247,244,0.72);
  margin-bottom: 24px;
}

.case-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(248,247,244,0.45);
}

.testimonial-quote {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 8px;
  color: var(--accent);
  opacity: 0.3;
}

.testimonial-card > p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.testi-author {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* ─── YOUTUBE / CONTENT ─── */
.youtube-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.yt-card {
  display: block;
  cursor: pointer;
  transition: transform 0.3s var(--ease-spring);
}
.yt-card:hover { transform: translateY(-4px); }

.yt-thumb {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--bg-alt);
}

.yt-thumb-bg {
  width: 100%;
  height: 100%;
}

.yt-bg-1 { background: linear-gradient(135deg, #1a0533 0%, #3d1a6e 50%, #0e1b42 100%); }
.yt-bg-2 { background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 50%, #0f2035 100%); }
.yt-bg-3 { background: linear-gradient(135deg, #1a0a0a 0%, #4a1515 50%, #2d0d0d 100%); }

.yt-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.14);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 2px;
  transition: background 0.2s, transform 0.2s var(--ease-spring);
  z-index: 2;
}

.yt-card:hover .yt-play {
  background: rgba(255,255,255,0.28);
  transform: translate(-50%, -50%) scale(1.12);
}

.yt-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.72);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  font-variant-numeric: tabular-nums;
}

.yt-info { padding: 0 2px; }

.yt-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.45;
  margin-bottom: 6px;
}

.yt-meta {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.youtube-cta { text-align: center; }

/* ─── FOOTER CTA ─── */
.section-cta {
  padding: 160px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

/* warm glow background */
.section-cta::before {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 60vw;
  height: 40vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,137,74,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner { position: relative; }

.cta-title {
  font-size: clamp(2.75rem, 6vw, 5rem);
  margin-bottom: 20px;
  color: var(--text-primary);
}
.cta-title em { color: var(--accent); }

.cta-sub {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 52px;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── FOOTER ─── */
#footer {
  padding: 52px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 36px;
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  display: block;
  margin-bottom: 5px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ─── SCROLL REVEAL ANIMATIONS ─── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }

/* ─── MOBILE NAV OPEN ─── */
.nav-links.mobile-open {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(248,247,244,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px 40px 32px;
  gap: 20px;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  z-index: 999;
}

.nav-links.mobile-open a {
  font-size: 1.0625rem;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .container { padding: 0 28px; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 28px 80px;
  }

  .hero-visual {
    order: -1;
    justify-content: center;
  }

  .hero-img-wrap {
    max-width: 320px;
    margin: 0 auto;
    aspect-ratio: 3/3.5;
  }

  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

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

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

  .youtube-row {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }

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

  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .btn-nav { display: none; }

  .footer-inner {
    flex-direction: column;
    gap: 28px;
  }

  .nav-inner { gap: 0; }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 80px 0; }
  .hero-inner { padding: 40px 20px 64px; }
  .hero-title { font-size: 2.5rem; }
  .hero-sub { font-size: 1.25rem; }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.625rem; }
  .section-cta { padding: 100px 0; }
  .cta-title { font-size: 2.5rem; }
  .service-card { padding: 32px 24px; }
  .testimonial-card { padding: 28px; }
  .case-metric { font-size: 3.5rem; }
  .hero-scroll-hint { display: none; }
}

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

/* ─── FOCUS VISIBLE ─── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}