/* Premier Horizon – Ana Sayfa Stilleri
   Fonts: Manrope (başlık), Inter (içerik) via Google Fonts
   Renk sistemi: CSS custom properties
   ------------------------------------------------------------------ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* ── Değişkenler ── */
:root {
  --c-dark:    #0F172A;
  --c-petrol:  #0F4C5C;
  --c-gold:    #C8A96B;
  --c-gold-lt: #DFC08A;
  --c-light:   #F8FAFC;
  --c-white:   #FFFFFF;
  --c-off-wh:  #E2E8F0;
  --c-gray:    #94A3B8;
  --c-muted:   #64748B;
  --c-card-bg: #162032;
  --c-card-bd: rgba(200,169,107,.18);

  --ff-head:  'Manrope', sans-serif;
  --ff-body:  'Inter', sans-serif;

  --radius:   12px;
  --radius-lg:20px;
  --shadow:   0 4px 32px rgba(0,0,0,.28);
  --shadow-sm:0 2px 12px rgba(0,0,0,.18);

  --section-pad: 100px 0;
  --container:   1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  background: var(--c-dark);
  color: var(--c-off-wh);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Container ── */
.ph-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Yardımcı sınıflar ── */
.ph-section       { padding: var(--section-pad); }
.ph-section--light{ background: var(--c-light); color: var(--c-dark); }
.ph-section--petrol{ background: var(--c-petrol); }
.ph-section--mid  { background: #111827; }

.ph-label {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 16px;
}

.ph-heading-xl {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--c-white);
}

.ph-heading-lg {
  font-family: var(--ff-head);
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.018em;
  color: var(--c-white);
}

.ph-heading-lg--dark { color: var(--c-dark); }

.ph-heading-md {
  font-family: var(--ff-head);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-white);
}

.ph-body {
  font-size: 1.05rem;
  color: var(--c-gray);
  line-height: 1.75;
}

.ph-body--dark { color: var(--c-muted); }

.ph-gold { color: var(--c-gold); }

/* ── Butonlar ── */
.ph-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-head);
  font-size: .92rem;
  font-weight: 700;
  border-radius: 8px;
  padding: 14px 28px;
  cursor: pointer;
  border: none;
  transition: all .22s ease;
  letter-spacing: .01em;
  white-space: nowrap;
}

.ph-btn--primary {
  background: var(--c-gold);
  color: var(--c-dark);
}
.ph-btn--primary:hover {
  background: #b08843;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,169,107,.32);
}

.ph-btn--outline {
  background: transparent;
  color: var(--c-white);
  border: 1.5px solid rgba(255,255,255,.3);
}
.ph-btn--outline:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
  transform: translateY(-2px);
}

.ph-btn--ghost-dark {
  background: transparent;
  color: var(--c-dark);
  border: 1.5px solid rgba(15,23,42,.25);
}
.ph-btn--ghost-dark:hover {
  border-color: var(--c-petrol);
  color: var(--c-petrol);
}

.ph-btn--sm { padding: 10px 20px; font-size: .84rem; }

/* ── Section başlık bloğu ── */
.ph-section-head { margin-bottom: 64px; }
.ph-section-head--center { text-align: center; }

/* ════════════════════════════════════════════════
   1. HERO
════════════════════════════════════════════════ */
.ph-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--c-dark);
  overflow: hidden;
  padding: 120px 0 80px;
}

/* Arka plan ızgara deseni */
.ph-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200,169,107,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,169,107,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Sol üst ışıma */
.ph-hero::after {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(15,76,92,.45) 0%, transparent 70%);
  pointer-events: none;
}

.ph-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ph-hero__content { }

.ph-hero__headline {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.025em;
  color: var(--c-white);
  margin-bottom: 28px;
}

.ph-hero__headline span { color: var(--c-gold); }

.ph-hero__sub {
  font-size: 1.08rem;
  color: var(--c-gray);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 520px;
}

.ph-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* Hero – soyut SVG diyagram alanı */
.ph-hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ph-hero__diagram {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1;
  position: relative;
}

/* SVG içi stil – eko sistem diyagramı */
.ph-diagram-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 40px rgba(200,169,107,.12));
}

/* Hero scroll göstergesi */
.ph-hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.ph-hero__scroll span {
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-gray);
  font-family: var(--ff-head);
}

.ph-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--c-gold), transparent);
  animation: ph-scrollPulse 1.8s ease-in-out infinite;
}

@keyframes ph-scrollPulse {
  0%, 100% { opacity: .3; }
  50%       { opacity: 1; }
}

/* ════════════════════════════════════════════════
   2. PROBLEM
════════════════════════════════════════════════ */
.ph-problem { background: #0a0f1a; }

.ph-problem__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ph-problem-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color .22s, transform .22s;
}

.ph-problem-card:hover {
  border-color: rgba(200,169,107,.4);
  transform: translateY(-4px);
}

.ph-problem-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(200,169,107,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.ph-problem-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--c-gold);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ph-problem-card__title {
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 10px;
}

.ph-problem-card__text {
  font-size: .9rem;
  color: var(--c-gray);
  line-height: 1.65;
}

/* ════════════════════════════════════════════════
   3. NEDEN PREMIER HORIZON
════════════════════════════════════════════════ */
.ph-why { background: var(--c-dark); }

.ph-why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.ph-compare-card {
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--c-card-bd);
  background: var(--c-card-bg);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform .22s;
}

.ph-compare-card:hover { transform: translateY(-4px); }

.ph-compare-card--featured {
  background: linear-gradient(145deg, var(--c-petrol) 0%, #0a2f3a 100%);
  border-color: var(--c-gold);
  box-shadow: 0 0 40px rgba(200,169,107,.15), var(--shadow);
  position: relative;
  overflow: hidden;
}

.ph-compare-card--featured::before {
  content: 'Premier Horizon';
  position: absolute;
  top: 20px;
  right: -32px;
  background: var(--c-gold);
  color: var(--c-dark);
  font-family: var(--ff-head);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 48px;
  transform: rotate(45deg);
}

.ph-compare-card__tag {
  font-family: var(--ff-head);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.ph-compare-card__title {
  font-family: var(--ff-head);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--c-white);
  line-height: 1.3;
}

.ph-compare-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.ph-compare-card__list li {
  display: flex;
  gap: 10px;
  font-size: .9rem;
  color: var(--c-gray);
  line-height: 1.55;
}

.ph-compare-card__list li::before {
  content: '—';
  color: var(--c-muted);
  flex-shrink: 0;
  margin-top: 2px;
}

.ph-compare-card--featured .ph-compare-card__list li {
  color: rgba(255,255,255,.82);
}

.ph-compare-card--featured .ph-compare-card__list li::before {
  content: '✓';
  color: var(--c-gold);
  font-weight: 700;
}

.ph-compare-card__metric {
  font-family: var(--ff-head);
  font-size: .82rem;
  font-weight: 600;
  color: var(--c-muted);
  padding-top: 16px;
  border-top: 1px solid var(--c-card-bd);
}

.ph-compare-card--featured .ph-compare-card__metric {
  color: var(--c-gold);
  border-color: rgba(200,169,107,.25);
}

/* ════════════════════════════════════════════════
   4. DÖNÜŞÜM YOLCULUĞU
════════════════════════════════════════════════ */
.ph-journey { background: #080d16; }

.ph-journey__timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Dikey çizgi */
.ph-journey__timeline::before {
  content: '';
  position: absolute;
  left: 31px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--c-gold), transparent);
}

.ph-journey-step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 0 0 48px 0;
  position: relative;
}

.ph-journey-step:last-child { padding-bottom: 0; }

.ph-journey-step__num {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-dark);
  border: 2px solid var(--c-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-head);
  font-size: .8rem;
  font-weight: 800;
  color: var(--c-gold);
  letter-spacing: .05em;
  position: relative;
  z-index: 1;
  transition: background .22s;
}

.ph-journey-step:hover .ph-journey-step__num {
  background: var(--c-gold);
  color: var(--c-dark);
}

.ph-journey-step__body {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius);
  padding: 28px 32px;
  flex: 1;
  transition: border-color .22s;
}

.ph-journey-step:hover .ph-journey-step__body {
  border-color: rgba(200,169,107,.35);
}

.ph-journey-step__phase {
  font-family: var(--ff-head);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 6px;
}

.ph-journey-step__title {
  font-family: var(--ff-head);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 10px;
}

.ph-journey-step__sub {
  font-size: .88rem;
  color: var(--c-gray);
  font-style: italic;
  margin-bottom: 10px;
}

.ph-journey-step__text {
  font-size: .92rem;
  color: var(--c-gray);
  line-height: 1.68;
}

/* ════════════════════════════════════════════════
   5. ÇALIŞMA MODELLERİ
════════════════════════════════════════════════ */
.ph-models { background: var(--c-dark); }

.ph-models__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.ph-model-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color .22s, transform .22s;
}

.ph-model-card:hover {
  border-color: rgba(200,169,107,.38);
  transform: translateY(-4px);
}

.ph-model-card__num {
  font-family: var(--ff-head);
  font-size: 2rem;
  font-weight: 800;
  color: rgba(200,169,107,.18);
  line-height: 1;
}

.ph-model-card__title {
  font-family: var(--ff-head);
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--c-white);
}

.ph-model-card__desc {
  font-size: .92rem;
  color: var(--c-gray);
  line-height: 1.7;
  flex: 1;
}

.ph-model-card__note {
  font-size: .8rem;
  color: var(--c-muted);
  font-style: italic;
  padding-top: 12px;
  border-top: 1px solid var(--c-card-bd);
}

/* ════════════════════════════════════════════════
   6. YÖNETİM ALANLARI
════════════════════════════════════════════════ */
.ph-matrix { background: #0a0f1a; }

.ph-matrix__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.ph-matrix-item {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  transition: border-color .22s, transform .22s;
  cursor: default;
}

.ph-matrix-item:hover {
  border-color: var(--c-gold);
  transform: translateY(-3px);
}

.ph-matrix-item__icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(200,169,107,.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ph-matrix-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--c-gold);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ph-matrix-item__label {
  font-family: var(--ff-head);
  font-size: .86rem;
  font-weight: 700;
  color: var(--c-off-wh);
}

.ph-matrix__cta { text-align: center; }

/* ════════════════════════════════════════════════
   7. PARTNER EKOSİSTEMİ
════════════════════════════════════════════════ */
.ph-ecosystem { background: var(--c-dark); }

.ph-ecosystem__wrap {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 72px;
  align-items: center;
}

.ph-ecosystem__diagram {
  width: 100%;
  max-width: 580px;
  aspect-ratio: 1;
}

.ph-ecosystem-svg { width: 100%; height: 100%; }

/* Partner hover efektleri */
.ph-partner-node { cursor: pointer; }

.ph-partner-circle {
  transition: filter .25s, transform .25s;
  transform-box: fill-box;
  transform-origin: center;
}

.ph-partner-node:hover .ph-partner-circle {
  transform: scale(1.1);
  filter: drop-shadow(0 0 10px rgba(200,169,107,.45));
}

.ph-spoke {
  transition: stroke .25s, stroke-opacity .25s, stroke-width .25s;
}

.ph-spoke--active {
  stroke: rgba(200,169,107,.75) !important;
  stroke-width: 2.5 !important;
}

.ph-center-glow-el { transition: opacity .25s; }
.ph-center-glow-el--active { opacity: 1 !important; }

.ph-ecosystem__sub {
  font-size: 1rem;
  color: var(--c-gray);
  line-height: 1.78;
  margin-top: 20px;
}

.ph-ecosystem__pillars {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
  margin-bottom: 32px;
}

.ph-ecosystem__pillar {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ff-head);
  font-size: .85rem;
  font-weight: 600;
  color: var(--c-muted);
}

.ph-ecosystem__pillar-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
  flex-shrink: 0;
}

/* ════════════════════════════════════════════════
   8. ÖRNEK VAKA
════════════════════════════════════════════════ */
.ph-case { background: #080d16; }

.ph-case__card {
  background: linear-gradient(135deg, var(--c-card-bg) 0%, #0e1c2e 100%);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius-lg);
  padding: 56px 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.ph-case__label {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-dark);
  background: var(--c-gold);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.ph-case__title {
  font-family: var(--ff-head);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  font-weight: 800;
  color: var(--c-white);
  line-height: 1.25;
  margin-bottom: 24px;
}

.ph-case__meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.ph-case__meta-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  color: var(--c-gray);
}

.ph-case__meta-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
  flex-shrink: 0;
  margin-top: 8px;
}

/* Sağ – metrik kartlar */
.ph-case__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.ph-metric {
  background: rgba(200,169,107,.07);
  border: 1px solid rgba(200,169,107,.2);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}

.ph-metric__val {
  font-family: var(--ff-head);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 8px;
}

.ph-metric__label {
  font-size: .82rem;
  color: var(--c-gray);
  line-height: 1.45;
}

/* ════════════════════════════════════════════════
   9. İÇGÖRÜLER
════════════════════════════════════════════════ */
.ph-insights { background: var(--c-dark); }

.ph-insights__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ph-insight-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color .22s, transform .22s;
}

.ph-insight-card:hover {
  border-color: rgba(200,169,107,.35);
  transform: translateY(-4px);
}

.ph-insight-card__quote {
  font-family: var(--ff-head);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.45;
}

.ph-insight-card__quote::before {
  content: '"';
  font-size: 3rem;
  color: var(--c-gold);
  line-height: .6;
  display: block;
  margin-bottom: 12px;
  font-family: Georgia, serif;
}

.ph-insight-card__body {
  font-size: .88rem;
  color: var(--c-gray);
  line-height: 1.68;
}

/* ════════════════════════════════════════════════
   10. FINAL CTA
════════════════════════════════════════════════ */
.ph-final-cta {
  background: linear-gradient(135deg, var(--c-petrol) 0%, #062030 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 120px 0;
}

.ph-final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200,169,107,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,169,107,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.ph-final-cta__inner { position: relative; z-index: 1; }

.ph-final-cta__sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,.72);
  line-height: 1.75;
  max-width: 540px;
  margin: 20px auto 40px;
}

/* ════════════════════════════════════════════════
   NAVBAR (Minimal – tema header'ından bağımsız)
════════════════════════════════════════════════ */
.ph-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background .3s, box-shadow .3s;
}

.ph-nav.ph-nav--scrolled {
  background: rgba(15,23,42,.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
}

.ph-nav__inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

/* ── Logo ── */
.ph-nav__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  text-decoration: none;
  line-height: 1;
  flex-shrink: 0;
  padding-right: 72px;
}

.ph-nav__logo-name {
  font-family: var(--ff-head);
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: .05em;
  text-transform: uppercase;
  line-height: 1;
}

.ph-nav__logo-name em {
  color: var(--c-gold);
  font-style: normal;
}

.ph-nav__logo-tagline {
  font-family: var(--ff-body);
  font-size: .6rem;
  font-weight: 400;
  color: rgba(255,255,255,.30);
  letter-spacing: .06em;
  text-transform: uppercase;
  line-height: 1.55;
}

/* ── Links ── */
.ph-nav__links {
  display: flex;
  gap: 36px;
  list-style: none;
  align-items: center;
}

.ph-nav__links > li > a {
  font-family: var(--ff-head);
  font-size: .82rem;
  font-weight: 600;
  color: var(--c-gray);
  transition: color .2s;
  letter-spacing: .02em;
  white-space: nowrap;
}

.ph-nav__links > li > a:hover { color: var(--c-white); }

/* ── Dropdown ── */
.ph-nav__dropdown { position: relative; }

.ph-nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  font-family: var(--ff-head);
  font-size: .82rem;
  font-weight: 600;
  color: var(--c-gray);
  cursor: pointer;
  padding: 0;
  transition: color .2s;
  letter-spacing: .02em;
  white-space: nowrap;
}

.ph-nav__dropdown-toggle:hover,
.ph-nav__dropdown:hover .ph-nav__dropdown-toggle,
.ph-nav__dropdown--open .ph-nav__dropdown-toggle { color: var(--c-white); }

.ph-nav__dropdown-toggle svg { transition: transform .22s; flex-shrink: 0; }

.ph-nav__dropdown:hover .ph-nav__dropdown-toggle svg,
.ph-nav__dropdown--open .ph-nav__dropdown-toggle svg { transform: rotate(180deg); }

.ph-nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: rgba(10,17,32,.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  min-width: 220px;
  padding: 6px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s, transform .22s, visibility .2s;
  z-index: 200;
  box-shadow: 0 24px 56px rgba(0,0,0,.5);
}

.ph-nav__dropdown-menu::before {
  content: '';
  position: absolute;
  top: -14px; left: 0; right: 0;
  height: 14px;
}

.ph-nav__dropdown:hover .ph-nav__dropdown-menu,
.ph-nav__dropdown--open .ph-nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.ph-nav__dropdown-menu li a {
  display: block;
  padding: 11px 20px;
  font-family: var(--ff-head);
  font-size: .82rem;
  font-weight: 500;
  color: rgba(200,208,225,.72);
  transition: color .15s, background .15s;
  white-space: nowrap;
}

.ph-nav__dropdown-menu li:first-child a { border-radius: 10px 10px 0 0; }
.ph-nav__dropdown-menu li:last-child  a { border-radius: 0 0 10px 10px; }

.ph-nav__dropdown-menu li a:hover {
  color: var(--c-gold);
  background: rgba(200,169,107,.07);
}

/* ── CTA ── */
.ph-nav__cta {
  display: flex;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

.ph-nav__cta .ph-btn {
  padding: 14px 22px;
  font-size: .84rem;
  border-radius: 10px;
}

/* ── Hamburger ── */
.ph-nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  margin-left: auto;
}

.ph-nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all .25s;
}

/* ════════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .ph-hero__inner          { grid-template-columns: 1fr; gap: 48px; }
  .ph-hero__visual         { display: none; }
  .ph-why__grid            { grid-template-columns: 1fr; }
  .ph-ecosystem__wrap      { grid-template-columns: 1fr; }
  .ph-ecosystem__diagram   { max-width: 480px; margin: 0 auto; }
  .ph-case__card           { grid-template-columns: 1fr; gap: 40px; }
  .ph-expertise__grid      { grid-template-columns: repeat(2, 1fr); }

  .ph-nav__links,
  .ph-nav__cta             { display: none; }
  .ph-nav__hamburger       { display: flex; }
  .ph-nav__logo-tagline    { display: none; }
  .ph-nav__inner           { padding: 0 24px; }

  /* Mobile dropdown: accordion instead of absolute */
  .ph-nav__dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    background: transparent;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0;
    min-width: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: max-height .3s ease, visibility .3s;
  }
  .ph-nav__dropdown--open .ph-nav__dropdown-menu {
    visibility: visible;
    max-height: 320px;
    padding: 4px 0 8px 16px;
    border-left: 1px solid rgba(200,169,107,.2);
    margin-top: 8px;
    margin-left: 4px;
  }
  .ph-nav__dropdown-menu::before { display: none; }
  .ph-nav__dropdown-toggle {
    color: rgba(200,208,225,.65);
    width: 100%;
    justify-content: space-between;
    font-size: .9rem;
  }
  .ph-nav__dropdown-toggle:hover { color: var(--c-white); }
}

@media (max-width: 768px) {
  :root { --section-pad: 72px 0; }

  .ph-problem__grid        { grid-template-columns: 1fr; }
  .ph-models__grid         { grid-template-columns: 1fr; }
  .ph-insights__grid       { grid-template-columns: 1fr; }
  .ph-matrix__grid         { grid-template-columns: repeat(2, 1fr); }
  .ph-case__metrics        { grid-template-columns: 1fr 1fr; }
  .ph-case__card           { padding: 36px 28px; }
  .ph-hero__cta            { flex-direction: column; }
  .ph-hero__cta .ph-btn    { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .ph-matrix__grid         { grid-template-columns: 1fr 1fr; }
  .ph-case__metrics        { grid-template-columns: 1fr; }
  .ph-expertise__grid      { grid-template-columns: 1fr; }
  .ph-ecosystem__diagram   { max-width: 100%; }
}

/* ── Mobil menü açık hali ── */
.ph-nav--open .ph-nav__links,
.ph-nav--open .ph-nav__cta {
  display: flex;
}

.ph-nav--open {
  flex-direction: column;
  height: auto;
  padding-bottom: 20px;
}

.ph-nav--open .ph-nav__inner {
  flex-wrap: wrap;
  height: auto;
  padding-top: 16px;
}

.ph-nav--open .ph-nav__links {
  flex-direction: column;
  width: 100%;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid rgba(255,255,255,.08);
}

.ph-nav--open .ph-nav__cta {
  width: 100%;
  flex-direction: column;
  padding-top: 8px;
  padding-bottom: 16px;
  border-top: 1px solid rgba(200,169,107,.18);
}

.ph-nav--open .ph-nav__cta .ph-btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.ph-nav--open .ph-nav__dropdown-toggle { display: flex; }

/* ════════════════════════════════════════════════
   UZMANLIK ALANLARI
════════════════════════════════════════════════ */
.ph-expertise { background: #0a0f1a; }

.ph-expertise__sub {
  font-size: 1.05rem;
  color: var(--c-gray);
  line-height: 1.78;
  max-width: 680px;
  margin-top: 16px;
}

.ph-expertise__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
}

.ph-expertise-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-bd);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color .24s, transform .24s, box-shadow .24s;
}

.ph-expertise-card:hover {
  border-color: rgba(200,169,107,.42);
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,.32);
}

.ph-expertise-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(15,76,92,.5), rgba(200,169,107,.07));
  border: 1px solid rgba(200,169,107,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 4px;
}

.ph-expertise-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--c-gold);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ph-expertise-card__num {
  font-family: var(--ff-head);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(200,169,107,.38);
}

.ph-expertise-card__title {
  font-family: var(--ff-head);
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--c-white);
  line-height: 1.3;
}

.ph-expertise-card__desc {
  font-family: var(--ff-body);
  font-size: .9rem;
  color: var(--c-gray);
  line-height: 1.74;
  flex: 1;
}

/* Utility */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ════════════════════════════════════════════════
   MOBİL RESPONSIVE DÜZELTMELER
════════════════════════════════════════════════ */

/* Tablet: Uzmanlık 2 sütun */
@media (max-width: 1024px) {
  .ph-expertise__grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

/* Mobil: Uzmanlık tek sütun — 768px altı */
@media (max-width: 768px) {
  .ph-expertise__grid {
    grid-template-columns: 1fr !important;
    display: grid !important;
    gap: 20px !important;
  }
  .ph-expertise-card {
    width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }

  /* Hero: taşma önleme */
  .ph-hero__content {
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
  }
  .ph-hero__headline {
    font-size: clamp(1.6rem, 6vw, 2.4rem) !important;
  }

  /* Matrix */
  .ph-matrix__grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  /* Section head taşma */
  .ph-section-head h2,
  .ph-heading-lg {
    font-size: clamp(1.5rem, 5.5vw, 2.2rem) !important;
    overflow-wrap: break-word !important;
  }
}