/* =====================================================
   GIUF — Genç İstanbullular Ulusal Forumu
   CSS Design System
   ===================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@500;600;700&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --navy:          #0A2342;
  --navy-mid:      #1B3D6E;
  --navy-light:    #2A5298;
  --turquoise:     #00B4D8;
  --turquoise-dark:#0096B7;
  --gold:          #C9A84C;
  --gold-light:    #E8C97A;
  --white:         #FFFFFF;
  --cream:         #F8F9FC;
  --text-dark:     #1A2744;
  --text-mid:      #4A5568;
  --text-light:    #718096;
  --border:        rgba(10,35,66,0.12);
  --glass:         rgba(255,255,255,0.08);
  --glass-border:  rgba(255,255,255,0.15);

  /* Typography */
  --font-display:  'Playfair Display', Georgia, serif;
  --font-body:     'Inter', system-ui, sans-serif;
  --font-ui:       'Montserrat', system-ui, sans-serif;

  /* Spacing */
  --section-py:    100px;
  --section-py-sm: 60px;
  --container:     1180px;
  --container-pad: 24px;

  /* Effects */
  --shadow-sm:     0 2px 8px rgba(10,35,66,0.08);
  --shadow-md:     0 8px 30px rgba(10,35,66,0.12);
  --shadow-lg:     0 20px 60px rgba(10,35,66,0.18);
  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-full:   999px;
  --transition:    all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* --- Utility Classes --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-tag::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 16px;
}

.section-title em {
  font-style: italic;
  color: var(--turquoise-dark);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-mid);
  line-height: 1.8;
  max-width: 580px;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }
.text-center .section-tag { justify-content: center; }
.text-center .section-tag::before { display: none; }
.text-center .section-tag::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--gold);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--turquoise) 0%, var(--turquoise-dark) 100%);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0,180,216,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,180,216,0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.5);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, #A8802A 100%);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(201,168,76,0.35);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201,168,76,0.45);
}

/* =====================================================
   NAVBAR
   ===================================================== */

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

#navbar.scrolled {
  background: rgba(10, 35, 66, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 0;
  box-shadow: 0 4px 30px rgba(0,0,0,0.25);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo-emblem {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gold);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-abbr {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: 0.08em;
}

.nav-logo-full {
  font-size: 0.62rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
  font-weight: 400;
}

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

.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

.nav-cta {
  padding: 10px 22px !important;
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-dark)) !important;
  color: var(--white) !important;
  border-radius: var(--radius-full) !important;
  box-shadow: 0 3px 15px rgba(0,180,216,0.4);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 20px rgba(0,180,216,0.5) !important;
  background: rgba(255,255,255,0) !important;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* Mobile Nav */
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--navy);
  padding: 16px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  padding: 14px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.nav-mobile a:hover { color: var(--turquoise); background: rgba(0,180,216,0.06); }

.nav-mobile .nav-mobile-cta {
  margin: 16px 24px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-dark));
  border-radius: var(--radius-full);
  color: var(--white) !important;
  padding: 14px 24px !important;
  box-shadow: 0 4px 16px rgba(0,180,216,0.3);
}

/* =====================================================
   HERO SECTION
   ===================================================== */

#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/hero-bg.jpg');
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg.loaded { transform: scale(1); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10,35,66,0.72) 0%,
    rgba(10,35,66,0.55) 40%,
    rgba(10,35,66,0.80) 80%,
    rgba(10,35,66,0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
}

.hero-inner {
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  padding: 8px 18px;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease forwards;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--turquoise);
  box-shadow: 0 0 8px var(--turquoise);
  animation: pulse 2s infinite;
}

.hero-badge span {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s 0.1s ease both;
}

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

.hero-title .highlight {
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--turquoise), transparent);
  border-radius: 2px;
}

.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 580px;
  animation: fadeInUp 0.7s 0.2s ease both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  animation: fadeInUp 0.7s 0.3s ease both;
}

.hero-scroll {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding-bottom: 36px;
}

.hero-scroll-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  font-family: var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce 2s 1s infinite;
  cursor: pointer;
}

.hero-scroll-btn svg {
  width: 24px;
  height: 24px;
  stroke: rgba(255,255,255,0.6);
}

/* Stats bar */
.hero-stats {
  position: relative;
  z-index: 2;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stats-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.stat-item {
  padding: 28px 24px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stat-item:last-child { border-right: none; }

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  font-family: var(--font-ui);
  letter-spacing: 0.04em;
}

/* Wave divider */
.wave-divider {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-top: -2px;
}

.wave-divider svg { display: block; }

/* =====================================================
   BIZ KIMIZ
   ===================================================== */

#biz-kimiz {
  padding: var(--section-py) 0;
  background: var(--white);
}

.biz-kimiz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.biz-kimiz-image-wrap {
  position: relative;
}

.biz-kimiz-image-main {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.biz-kimiz-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  box-shadow: var(--shadow-md);
  padding: 20px;
}

.biz-kimiz-accent .accent-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1;
}

.biz-kimiz-accent .accent-text {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  text-align: center;
  font-family: var(--font-ui);
  letter-spacing: 0.04em;
}

.biz-kimiz-deco {
  position: absolute;
  top: -20px;
  left: -20px;
  width: 120px;
  height: 120px;
  border: 3px solid var(--turquoise);
  border-radius: var(--radius-md);
  opacity: 0.3;
}

.biz-kimiz-content { padding: 20px 0; }

.biz-kimiz-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--cream);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.value-item:hover {
  border-color: var(--turquoise);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.value-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--turquoise);
  fill: none;
}

.value-text h4 {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.value-text p {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* =====================================================
   MİSYON & VİZYON
   ===================================================== */

#misyon-vizyon {
  padding: var(--section-py) 0;
  background: linear-gradient(180deg, var(--cream) 0%, #EEF2F8 100%);
  position: relative;
  overflow: hidden;
}

#misyon-vizyon::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,180,216,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.mv-header { margin-bottom: 60px; }

.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.mv-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.mv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.mv-card-misyon::before {
  background: linear-gradient(90deg, var(--navy), var(--navy-mid));
}

.mv-card-vizyon::before {
  background: linear-gradient(90deg, var(--turquoise), var(--turquoise-dark));
}

.mv-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}

.mv-card-misyon .mv-icon {
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
}

.mv-card-vizyon .mv-icon {
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-dark));
}

.mv-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--white);
  fill: none;
}

.mv-card-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.mv-card-misyon .mv-card-label { color: var(--navy); }
.mv-card-vizyon .mv-card-label { color: var(--turquoise-dark); }

.mv-card h3 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.25;
}

.mv-card p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.8;
}

.mv-card-deco {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  opacity: 0.05;
}

.mv-card-misyon .mv-card-deco { background: var(--navy); }
.mv-card-vizyon .mv-card-deco { background: var(--turquoise); }

/* =====================================================
   FAALİYETLER
   ===================================================== */

#faaliyetler {
  padding: var(--section-py) 0;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}

#faaliyetler::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0,180,216,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(201,168,76,0.06) 0%, transparent 50%);
  pointer-events: none;
}

#faaliyetler .section-title { color: var(--white); }
#faaliyetler .section-subtitle { color: rgba(255,255,255,0.7); }
#faaliyetler .section-tag { color: var(--gold-light); }
#faaliyetler .section-tag::before { background: var(--gold-light); }
#faaliyetler .text-center .section-tag::after { background: var(--gold-light); }

.faaliyetler-header {
  margin-bottom: 56px;
}

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

.faaliyet-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.faaliyet-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(0,180,216,0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.faaliyet-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--turquoise), var(--gold));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.faaliyet-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.faaliyet-card:hover .faaliyet-icon {
  background: rgba(0,180,216,0.15);
  border-color: rgba(0,180,216,0.3);
}

.faaliyet-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--turquoise);
  fill: none;
  stroke-width: 1.8;
}

.faaliyet-card h3 {
  font-family: var(--font-ui);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
}

.faaliyet-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

.faaliyet-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.72rem;
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-light);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-full);
  padding: 4px 12px;
}

/* =====================================================
   KATILIM / BAŞVURU
   ===================================================== */

#katilim {
  padding: var(--section-py) 0;
  background: var(--white);
}

.katilim-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.katilim-info { padding-top: 8px; }

.katilim-info .section-subtitle {
  margin-bottom: 36px;
}

.katilim-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.katilim-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-text h4 {
  font-family: var(--font-ui);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.step-text p {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* Form */
.katilim-form-wrap {
  background: var(--cream);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.katilim-form-wrap h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.katilim-form-wrap .form-subtitle {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.form-group label span {
  color: var(--turquoise-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text-dark);
  transition: var(--transition);
  outline: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--turquoise);
  box-shadow: 0 0 0 3px rgba(0,180,216,0.12);
  background: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--turquoise);
  cursor: pointer;
}

.form-checkbox label {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
  cursor: pointer;
}

.form-checkbox label a { color: var(--turquoise-dark); text-decoration: underline; }

.form-submit {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  color: var(--white);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(10,35,66,0.3);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10,35,66,0.4);
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.form-success-icon svg {
  width: 32px;
  height: 32px;
  stroke: white;
  fill: none;
}

.form-success h4 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 0.92rem;
  color: var(--text-mid);
}

/* =====================================================
   İLETİŞİM
   ===================================================== */

#iletisim {
  padding: var(--section-py) 0;
  background: linear-gradient(180deg, var(--cream) 0%, #EEF2F8 100%);
}

.iletisim-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.iletisim-info h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.25;
}

.iletisim-info p {
  font-size: 0.95rem;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 36px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--turquoise);
  fill: none;
}

.contact-item-text h5 {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.contact-item-text p, .contact-item-text a {
  font-size: 0.95rem;
  color: var(--text-dark);
  line-height: 1.4;
}

.contact-item-text a:hover { color: var(--turquoise-dark); }

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--turquoise-dark);
  transform: translateY(-2px);
}

.social-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--white);
  fill: none;
}

/* Contact Form */
.iletisim-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.iletisim-form-wrap h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
}

/* =====================================================
   FOOTER
   ===================================================== */

#footer {
  background: var(--navy);
  padding: 72px 0 0;
  position: relative;
  overflow: hidden;
}

#footer::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  top: 0;
  background: 
    radial-gradient(ellipse at 10% 80%, rgba(0,180,216,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand {}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-logo img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  object-fit: cover;
}

.footer-logo-text .abbr {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: 0.06em;
}

.footer-logo-text .full {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
}

.footer-brand p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--turquoise-dark);
  border-color: var(--turquoise-dark);
  transform: translateY(-2px);
}

.footer-social a svg {
  width: 16px;
  height: 16px;
  stroke: rgba(255,255,255,0.8);
  fill: none;
}

.footer-col h5 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--turquoise);
  padding-left: 4px;
}

.footer-col p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a { color: var(--gold-light); }
.footer-bottom a:hover { text-decoration: underline; }

/* =====================================================
   SCROLL ANIMATIONS
   ===================================================== */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* =====================================================
   KEYFRAME ANIMATIONS
   ===================================================== */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,180,216,0.6); }
  50%       { box-shadow: 0 0 0 6px rgba(0,180,216,0); }
}

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

/* =====================================================
   RESPONSIVE
   ===================================================== */

@media (max-width: 1024px) {
  :root {
    --section-py: 80px;
  }

  .biz-kimiz-grid {
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .faaliyetler-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-py: 64px;
    --container-pad: 20px;
  }

  /* Nav */
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  /* Hero */
  .hero-content { padding-top: 120px; padding-bottom: 60px; }
  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-stats-inner { grid-template-columns: 1fr; gap: 0; }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .stat-item:last-child { border-bottom: none; }

  /* Biz Kimiz */
  .biz-kimiz-grid { grid-template-columns: 1fr; gap: 40px; }
  .biz-kimiz-image-wrap { max-width: 480px; }
  .biz-kimiz-values { grid-template-columns: 1fr; }

  /* MV */
  .mv-grid { grid-template-columns: 1fr; gap: 20px; }
  .mv-card { padding: 36px 28px; }

  /* Faaliyetler */
  .faaliyetler-grid { grid-template-columns: 1fr; }

  /* Katılım */
  .katilim-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .katilim-form-wrap { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }

  /* İletişim */
  .iletisim-grid { grid-template-columns: 1fr; gap: 40px; }
  .iletisim-form-wrap { padding: 32px 24px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .nav-logo-full { display: none; }
  .biz-kimiz-accent { width: 140px; height: 140px; right: -10px; bottom: -10px; }
  .biz-kimiz-accent .accent-number { font-size: 1.8rem; }
}

/* =====================================================
   TOAST NOTIFICATION
   ===================================================== */

.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 16px 22px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-family: var(--font-ui);
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  border-left: 4px solid var(--turquoise);
  max-width: 380px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast svg {
  width: 20px;
  height: 20px;
  stroke: var(--turquoise);
  flex-shrink: 0;
}