/*
Theme Name: HEC Engineering
Theme URI: https://hec-engineering.com
Author: HEC Engineering
Author URI: https://hec-engineering.com
Description: Custom theme for HEC Engineering – Hydraulic, Environmental & Coastal Engineering
Version: 2.0.0
License: Private
Text Domain: hec-engineering
Tags: engineering, corporate, multilingual, gsap
*/

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  --color-navy:      #040d1e;
  --color-navy-mid:  #081a38;
  --color-teal:      #1a4a8a;
  --color-teal-dark: #0f3266;
  --color-white:     #ffffff;
  --color-gray-100:  #f4f7fc;
  --color-gray-300:  #c5d2e8;
  --color-gray-500:  #5b7498;
  --color-gray-700:  #2a3f5e;
  --color-text:      #142035;

  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  24px;

  --shadow-card: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-hover: 0 16px 48px rgba(26,74,138,0.22);

  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s ease;

  --container: 1200px;
  --container-wide: 1400px;
}

/* ============================================================
   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-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul { list-style: none; }

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }

p { margin-bottom: 1rem; }

.text-teal    { color: var(--color-teal); }
.text-white   { color: var(--color-white); }
.text-center  { text-align: center; }
.text-muted   { color: var(--color-gray-500); }

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

.container-wide {
  max-width: var(--container-wide);
}

.section {
  padding: 100px 0;
}

.section-sm {
  padding: 60px 0;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform var(--transition);
}

.btn:hover::before { transform: translateX(0); }

.btn-primary {
  background: var(--color-teal);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(26,74,138,0.3);
}

.btn-primary:hover {
  background: var(--color-teal-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26,74,138,0.4);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-dark:hover {
  background: var(--color-navy-mid);
  transform: translateY(-2px);
  color: var(--color-white);
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-header {
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: rgba(26,74,138,0.1);
  color: var(--color-teal-dark);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid rgba(26,74,138,0.25);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-gray-500);
  max-width: 600px;
  line-height: 1.8;
}

.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), transparent);
  border-radius: 2px;
  margin: 20px 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-teal-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(26,74,138,0.12), rgba(26,74,138,0.06));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(26,74,138,0.15);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-teal);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================================
   TAGS / BADGES
   ============================================================ */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
}

.tag-teal {
  background: rgba(26,74,138,0.1);
  color: var(--color-teal-dark);
  border: 1px solid rgba(26,74,138,0.2);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all var(--transition);
  padding: 20px 0;
}

#site-header.scrolled {
  background: rgba(4, 13, 30, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo img {
  height: 44px;
  width: auto;
  transition: all var(--transition);
}

.site-logo .logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.site-logo .logo-sub {
  font-size: 0.65rem;
  color: var(--color-teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  line-height: 1;
  margin-top: 2px;
}

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

.main-nav a {
  color: rgba(255,255,255,0.85);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  position: relative;
  padding-bottom: 2px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-teal);
  transition: width var(--transition);
}

.main-nav a:hover { color: var(--color-white); }
.main-nav a:hover::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  transition: all var(--transition-fast);
}

.lang-switch:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
}

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

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-fast);
  display: block;
}

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-navy);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.mobile-menu.active { display: flex; }

.mobile-menu a {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  transition: color var(--transition-fast);
}

.mobile-menu a:hover { color: var(--color-teal); }

.mobile-menu-close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: var(--color-white);
  font-size: 2rem;
  line-height: 1;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  background: var(--color-navy);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* ---- Video Arka Plan ---- */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0.45;
  z-index: 0;
  pointer-events: none;
}

/* Genel karartma — %60 */
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 12, 28, 0.72);
  z-index: 1;
  pointer-events: none;
}

/* Üst fade — navbar ile kaynaşma */
.hero-fade-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(
    to bottom,
    #040d1e 0%,
    rgba(4, 13, 30, 0.85) 30%,
    rgba(4, 13, 30, 0.3) 70%,
    transparent 100%
  );
  z-index: 4;
  pointer-events: none;
}

/* Alt fade — sonraki bölüme yumuşak geçiş */
.hero-fade-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 280px;
  background: linear-gradient(
    to top,
    #081a38 0%,
    rgba(8, 26, 56, 0.9) 25%,
    rgba(8, 26, 56, 0.5) 60%,
    transparent 100%
  );
  z-index: 4;
  pointer-events: none;
}

@media (max-width: 768px) {
  .hero-video { opacity: 0.35; }
  .hero-fade-top  { height: 140px; }
  .hero-fade-bottom { height: 180px; }
}

.hero-bg {
  display: none; /* Video varken gradient bg kapalı */
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 3;
  overflow: hidden;
  opacity: 0.6;
}

/* İçerik ortalanmış, tam genişlik */
.hero-content {
  position: relative;
  z-index: 5;
  max-width: 800px;
}

.hero-content-center {
  text-align: center;
  margin: 0 auto;
}

.hero-content-center .hero-eyebrow {
  justify-content: center;
}

.hero-content-center .hero-desc {
  margin-left: auto;
  margin-right: auto;
}

.hero-content-center .hero-actions {
  justify-content: center;
}

.hero-scroll { z-index: 5; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-teal);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 1;
}

.hero-eyebrow span {
  width: 40px;
  height: 1px;
  background: var(--color-teal);
  display: inline-block;
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  opacity: 1;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero h1 .accent {
  color: var(--color-teal);
  display: block;
}

.hero-desc {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 2.5rem;
  opacity: 1;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 1;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: var(--font-heading);
}

.hero-scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(26,74,138,0.6), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.6); opacity: 0.4; }
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--color-navy-mid);
  padding: 48px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1rem;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 40%;
  width: 1px;
  background: rgba(255,255,255,0.1);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-teal);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-section {
  background: var(--color-gray-100);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-teal-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-navy-mid));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-teal);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--color-navy);
}

.service-card p {
  color: var(--color-gray-500);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 0;
}

.service-arrow {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(26,74,138,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
  transition: all var(--transition);
}

.service-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-teal);
  fill: none;
}

.service-card:hover .service-arrow {
  background: var(--color-teal);
  border-color: var(--color-teal);
}

.service-card:hover .service-arrow svg { stroke: var(--color-white); }

/* ============================================================
   ABOUT TEASER
   ============================================================ */
.about-teaser {
  background: var(--color-white);
}

.about-teaser-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

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

.about-image-wrap img {
  border-radius: var(--radius-lg);
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.about-badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--color-teal);
  color: var(--color-white);
  padding: 24px 28px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: 0 12px 40px rgba(26,74,138,0.3);
}

.about-badge .num {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  display: block;
}

.about-badge .text {
  font-size: 0.78rem;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 2rem 0;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.about-feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(26,74,138,0.08);
  border: 1px solid rgba(26,74,138,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-feature-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-teal);
  fill: none;
  stroke-width: 1.8;
}

.about-feature-text h4 {
  font-size: 0.95rem;
  margin-bottom: 3px;
}

.about-feature-text p {
  font-size: 0.86rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
}

/* ============================================================
   CTA STRIP
   ============================================================ */
.cta-strip {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 50%, rgba(26,74,138,0.15) 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-strip::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,74,138,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-text h2 {
  color: var(--color-white);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 0.5rem;
}

.cta-text p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 0;
  font-size: 1rem;
}

/* ============================================================
   TEAM SECTION
   ============================================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
}

.team-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.team-photo {
  width: 100%;
  height: 280px;
  object-fit: cover;
  object-position: center top;
  background: linear-gradient(135deg, var(--color-navy), var(--color-navy-mid));
  display: block;
}

.team-photo-placeholder {
  width: 100%;
  height: 240px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-navy-mid));
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-photo-placeholder svg {
  width: 80px;
  height: 80px;
  stroke: rgba(255,255,255,0.2);
  fill: none;
  stroke-width: 1;
}

.team-info {
  padding: 1.5rem;
}

.team-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.82rem;
  color: var(--color-teal-dark);
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.team-title {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-navy-mid));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-teal);
  fill: none;
  stroke-width: 1.8;
}

.contact-info-text h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-500);
  margin-bottom: 4px;
}

.contact-info-text p {
  color: var(--color-navy);
  font-weight: 500;
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

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

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

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-gray-100);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-teal);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(26,74,138,0.12);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.65);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-text {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  display: block;
  margin-bottom: 4px;
}

.footer-brand .logo-sub {
  color: var(--color-teal);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 1.25rem;
}

.footer-desc {
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 300px;
  margin-bottom: 1.5rem;
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-teal);
  border-color: var(--color-teal);
}

.social-link svg {
  width: 16px;
  height: 16px;
  fill: rgba(255,255,255,0.7);
  transition: fill var(--transition-fast);
}

.social-link:hover svg { fill: var(--color-white); }

.footer-col h4 {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-teal);
  border-radius: 2px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '›';
  color: var(--color-teal);
  font-size: 1.1rem;
  opacity: 0;
  transition: all var(--transition-fast);
  transform: translateX(-4px);
}

.footer-links a:hover { color: var(--color-white); }
.footer-links a:hover::before { opacity: 1; transform: translateX(0); }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

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

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  background: var(--color-navy);
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(26,74,138,0.07) 0%, transparent 60%);
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.45);
  font-size: 0.82rem;
  margin-bottom: 1.25rem;
}

.breadcrumb a { color: var(--color-teal); }
.breadcrumb span { color: rgba(255,255,255,0.3); }

.page-hero h1 {
  color: var(--color-white);
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.page-hero p {
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 0;
  margin-top: 1rem;
}

/* ============================================================
   PRODUCTS (HEC-LAB)
   ============================================================ */
.products-section {
  background: var(--color-navy);
}

.products-section .section-title { color: var(--color-white); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition);
}

.product-card:hover {
  background: rgba(26,74,138,0.06);
  border-color: rgba(26,74,138,0.3);
  transform: translateY(-6px);
}

.product-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(26,74,138,0.15);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.product-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.product-subtitle {
  font-size: 0.82rem;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.product-desc {
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ============================================================
   SCROLL ANIMATIONS (initial hidden state)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
}

.fade-in {
  opacity: 0;
}

.slide-left {
  opacity: 0;
  transform: translateX(-50px);
}

.slide-right {
  opacity: 0;
  transform: translateX(50px);
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* ============================================================
   POLYLANG DİL GEÇİŞİ
   ============================================================ */
.hec-lang-switcher ul {
  display: flex !important;
  align-items: center !important;
  gap: 4px !important;
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.hec-lang-switcher ul li {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.hec-lang-switcher ul li::before,
.hec-lang-switcher ul li::marker {
  display: none !important;
  content: none !important;
}

.hec-lang-switcher ul li a,
.hec-lang-switcher ul li span {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff !important;
  border: 1.5px solid rgba(255,255,255,0.5) !important;
  transition: all var(--transition-fast);
  text-decoration: none !important;
  line-height: 1;
  background: rgba(255,255,255,0.08);
}

.hec-lang-switcher ul li a:hover {
  color: #ffffff !important;
  border-color: rgba(255,255,255,0.85) !important;
  background: rgba(255,255,255,0.18);
}

.hec-lang-switcher ul li.current-lang a,
.hec-lang-switcher ul li.current-lang span {
  color: #ffffff !important;
  border-color: rgba(255,255,255,0.8) !important;
  background: rgba(255,255,255,0.18);
}

/* Polylang bazen resim içerir — gizle */
.hec-lang-switcher ul li img { display: none !important; }

/* Mobil dil geçişi */
.hec-lang-switcher--mobile {
  margin-top: 1.5rem;
}

.hec-lang-switcher--mobile ul {
  justify-content: center;
  gap: 8px;
}

.hec-lang-switcher--mobile ul li a,
.hec-lang-switcher--mobile ul li span {
  font-size: 0.88rem;
  padding: 8px 20px;
}

/* ============================================================
   RESPONSIVE — TABLET (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .about-teaser-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid       { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid        { grid-template-columns: 1fr 1fr; }
  .stats-grid         { grid-template-columns: repeat(2, 1fr); }
  .products-grid      { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤768px)
   ============================================================ */
@media (max-width: 768px) {
  /* Genel */
  .section    { padding: 56px 0; }
  .section-sm { padding: 40px 0; }
  .container  { padding: 0 18px; }

  /* Tipografi */
  h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 2.2rem); }
  .section-title   { font-size: clamp(1.4rem, 5vw, 2rem); }
  .section-subtitle{ font-size: 0.95rem; }
  .section-header  { margin-bottom: 36px; }

  /* Navigasyon */
  .main-nav          { display: none; }
  .nav-actions .btn  { display: none; }
  .hamburger         { display: flex; }

  /* Hero */
  .hero h1           { font-size: clamp(1.9rem, 8vw, 3rem); }
  .hero-actions      { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-content      { text-align: center; }
  .hero-eyebrow      { justify-content: center; }
  .hero-desc         { margin: 0 auto 2rem; text-align: center; }
  .hero-scroll       { display: none; }

  /* Grid'ler */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .services-grid             { grid-template-columns: 1fr; }
  .products-grid             { grid-template-columns: 1fr; }

  /* Ekip */
  .team-grid  { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .team-photo {
    height: auto;
    aspect-ratio: 1 / 1;
    object-position: center top;
  }
  .team-photo-placeholder { height: auto; aspect-ratio: 1 / 1; }

  /* Biz Kimiz (about-teaser) */
  .about-teaser-inner { grid-template-columns: 1fr; gap: 32px; }
  .about-badge        { position: static; margin-top: 1.5rem; display: inline-block; }

  /* İletişim */
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 1.5rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { text-align: center; }
  .footer-brand .footer-desc { margin: 0 auto 1.25rem; }
  .footer-socials { justify-content: center; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .stat-item:not(:last-child)::after { display: none; }
  .stat-number { font-size: clamp(1.6rem, 6vw, 2.4rem); }

  /* CTA */
  .cta-inner { flex-direction: column; text-align: center; gap: 1.5rem; }
  .cta-inner .btn { width: 100%; justify-content: center; }

  /* Kartlar */
  .card { padding: 1.5rem; }
  .service-card { padding: 1.75rem 1.25rem; }

  /* Page hero (iç sayfalar) */
  .page-hero { padding: 120px 0 60px; }
  .page-hero h1 { font-size: clamp(1.7rem, 7vw, 2.5rem); }

  /* Breadcrumb */
  .breadcrumb { flex-wrap: wrap; }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (≤480px)
   ============================================================ */
@media (max-width: 480px) {
  .container { padding: 0 14px; }

  .team-grid    { grid-template-columns: 1fr; }
  .stats-grid   { grid-template-columns: 1fr; }
  .products-grid{ grid-template-columns: 1fr; }

  .hero h1 { font-size: clamp(1.7rem, 9vw, 2.5rem); }

  .btn { padding: 12px 22px; font-size: 0.82rem; }

  .footer-col h4 { font-size: 0.82rem; }

  /* Projeler ve hizmet kartlarında numara küçüt */
  .product-number { font-size: 2rem; }
}