/* ============================================
   OSMOSAN Saf Su Teknolojileri — Ana Stil Dosyası
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --navy: #0A1628;
  --navy-light: #0D2137;
  --cyan: #00C8E0;
  --cyan-dark: #00A3B8;
  --cyan-glow: rgba(0, 200, 224, 0.15);
  --white: #FFFFFF;
  --light-gray: #F5F7FA;
  --dark-text: #1A1A2E;
  --gray-text: #6B7280;
  --font: 'Poppins', sans-serif;
  --header-height: 90px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--dark-text);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

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

button, input, select, textarea {
  font-family: var(--font);
  font-size: 1rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--navy);
  transition: background var(--transition), box-shadow var(--transition);
  height: var(--header-height);
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.97);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.header-logo-img {
  height: 70px;
  width: auto;
  max-width: none;
  transition: opacity var(--transition);
  filter: brightness(0) invert(1);
}

.header-logo:hover .header-logo-img {
  opacity: 0.85;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width var(--transition);
}

.nav-menu a:hover {
  color: var(--cyan);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--cyan) !important;
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition) !important;
}

.nav-cta:hover {
  background: var(--cyan-dark) !important;
  transform: translateY(-1px);
}

.nav-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--white);
  border-radius: 3px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('../assets/icon-watermark.svg') no-repeat right 3% center / 50% auto, linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  overflow: hidden;
  padding-top: calc(var(--header-height) + 60px);
}

/* Dalga deseni arka plan */
.hero::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23ffffff' fill-opacity='0.03' d='M0,224L48,213.3C96,203,192,181,288,186.7C384,192,480,224,576,234.7C672,245,768,235,864,208C960,181,1056,139,1152,133.3C1248,128,1344,160,1392,176L1440,192L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
}

/* S-ikon monogram filigran artık kullanılmıyor, hero::after ile */

/* Dalga animasyonu */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  z-index: 1;
}

.hero-wave svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--cyan);
}

.hero p {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 620px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cyan);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--cyan-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 200, 224, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--cyan);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid var(--cyan);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
  background: var(--cyan);
  color: var(--white);
  transform: translateY(-2px);
}

/* İstatistik barı */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(0, 200, 224, 0.15);
  backdrop-filter: blur(10px);
}

.stat-number {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--cyan);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 6px;
  font-weight: 400;
}

/* ============================================
   BÖLÜM GENEL
   ============================================ */
.section {
  padding: 100px 0;
}

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

.section-light {
  background: var(--white);
}

.section-gray {
  background: var(--light-gray);
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 16px;
}

.section-dark .section-title h2 {
  color: var(--white);
}

.section-title .accent-line {
  width: 60px;
  height: 4px;
  background: var(--cyan);
  margin: 0 auto 16px;
  border-radius: 2px;
}

.section-title p {
  font-size: 1.1rem;
  color: var(--gray-text);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-title p {
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   ÜRÜNLER
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--white);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--cyan);
  transform: scaleX(1);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}


.product-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: var(--cyan-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-icon svg {
  width: 40px;
  height: 40px;
  fill: var(--cyan);
}

.product-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark-text);
}

.product-card .desc {
  font-size: 0.95rem;
  color: var(--gray-text);
  margin-bottom: 20px;
  line-height: 1.7;
}

.product-spec {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.88rem;
  color: var(--dark-text);
}

.product-spec svg {
  width: 16px;
  height: 16px;
  fill: var(--cyan);
  flex-shrink: 0;
}

.product-card .btn-primary {
  margin-top: 24px;
  width: 100%;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.9rem;
}

/* ============================================
   KULLANIM ALANLARI
   ============================================ */
.usage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.usage-card {
  padding: 32px 28px;
  background: var(--light-gray);
  border-radius: 16px;
  border-left: 4px solid var(--cyan);
  transition: transform var(--transition), box-shadow var(--transition);
}

.usage-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.usage-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 12px;
}

.usage-card p {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.7;
}

/* ============================================
   HİZMETLER
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 200, 224, 0.15);
  border-radius: 16px;
  padding: 36px 28px;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: rgba(0, 200, 224, 0.05);
}

.service-number {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}

.service-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ============================================
   SU KARŞILAŞTİRMA
   ============================================ */
.comparison-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
  font-size: 1.05rem;
  color: var(--gray-text);
  line-height: 1.8;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.comparison-card {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
}

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


.comparison-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 20px;
}

.comparison-bar-container {
  margin: 20px 0;
  height: 12px;
  background: var(--light-gray);
  border-radius: 6px;
  overflow: hidden;
}

.comparison-bar {
  height: 100%;
  border-radius: 6px;
  transition: width 1.5s ease;
  width: 0;
}

.comparison-bar.bar-high {
  background: var(--cyan);
}

.comparison-bar.bar-medium {
  background: var(--cyan);
}

.comparison-bar.bar-low {
  background: var(--cyan);
}

.comparison-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark-text);
  margin: 12px 0 4px;
}

.comparison-unit {
  font-size: 0.85rem;
  color: var(--gray-text);
}

/* RO Giderim Tablosu */
.removal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 50px;
}

.removal-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--white);
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.removal-item span:first-child {
  font-size: 0.9rem;
  color: var(--dark-text);
  font-weight: 500;
}

.removal-item span:last-child {
  font-size: 0.9rem;
  color: var(--cyan);
  font-weight: 700;
}

/* ============================================
   NEDEN OSMOSAN
   ============================================ */
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.reason-card {
  display: flex;
  gap: 20px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  border: 1px solid rgba(0, 200, 224, 0.1);
  transition: border-color var(--transition), transform var(--transition);
}

.reason-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}

.reason-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  background: var(--cyan-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reason-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--cyan);
}

.reason-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.reason-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ============================================
   SEKTÖRLER
   ============================================ */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sector-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 16px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.sector-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  border-color: var(--cyan);
}

.sector-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--cyan-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sector-icon svg {
  width: 22px;
  height: 22px;
  fill: var(--cyan);
}

.sector-item span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark-text);
}

/* ============================================
   TEKLİF FORMU
   ============================================ */
.form-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  position: relative;
  overflow: hidden;
}

.form-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%2300C8E0' fill-opacity='0.03' d='M0,160L60,170.7C120,181,240,203,360,197.3C480,192,600,160,720,149.3C840,139,960,149,1080,170.7C1200,192,1320,224,1380,240L1440,256L1440,0L1380,0C1320,0,1200,0,1080,0C960,0,840,0,720,0C600,0,480,0,360,0C240,0,120,0,60,0L0,0Z'%3E%3C/path%3E%3C/svg%3E") no-repeat top;
  background-size: cover;
  pointer-events: none;
}

.form-wrapper {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.form-wrapper .section-title h2 {
  color: var(--white);
}

.form-wrapper .section-title p {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--white);
  font-size: 0.95rem;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  background: rgba(0, 200, 224, 0.05);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300C8E0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group select option {
  background: var(--navy);
  color: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.form-submit {
  grid-column: 1 / -1;
  text-align: center;
  margin-top: 10px;
}

.form-submit .btn-primary {
  padding: 16px 48px;
  font-size: 1.05rem;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  color: var(--white);
}

.form-success.show {
  display: block;
}

.form-success svg {
  width: 64px;
  height: 64px;
  fill: var(--cyan);
  margin-bottom: 20px;
}

.form-success h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.form-success p {
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--navy);
  color: var(--white);
  padding-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-about p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.footer-social a:hover {
  background: var(--cyan);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
  fill: var(--white);
}

.footer h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--white);
}

.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px 0;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover {
  color: var(--cyan);
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--cyan);
  margin-top: 3px;
  flex-shrink: 0;
}

.footer-contact-item span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}

.footer-contact-item a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-contact-item a:hover {
  color: var(--cyan);
}

.footer-map {
  margin-top: 20px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-map iframe {
  width: 100%;
  height: 200px;
  border: none;
  filter: grayscale(0.5) brightness(0.8);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================
   WHATSAPP FLOATING BUTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: var(--white);
}

/* WhatsApp tooltip */
.whatsapp-float::before {
  content: 'WhatsApp ile yazın';
  position: absolute;
  right: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: #25D366;
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.whatsapp-float:hover::before {
  opacity: 1;
}

/* ============================================
   ALT SAYFA — SAYFA BANNER
   ============================================ */
.page-banner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%23ffffff' d='M0,30 Q360,60 720,30 Q1080,0 1440,30 L1440,60 L0,60 Z'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
}

.page-banner h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.page-banner p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb {
  margin-top: 16px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a {
  color: var(--cyan);
  transition: opacity var(--transition);
}

.breadcrumb a:hover {
  opacity: 0.8;
}

/* ============================================
   ALT SAYFA — HAKKIMIZDA
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 1rem;
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-highlight {
  background: var(--cyan-glow);
  border-left: 4px solid var(--cyan);
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
}

.about-highlight p {
  color: var(--dark-text);
  font-weight: 500;
  margin-bottom: 0;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.about-stat-card .icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  background: var(--cyan-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-stat-card .icon svg {
  width: 28px;
  height: 28px;
  fill: var(--cyan);
}

.about-stat-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 4px;
}

.about-stat-card p {
  font-size: 0.88rem;
  color: var(--gray-text);
  margin-bottom: 0;
}

/* ============================================
   ALT SAYFA — ÜRÜNLER
   ============================================ */
.product-detail {
  padding: 80px 0;
}

.product-detail:nth-child(even) {
  background: var(--light-gray);
}

.product-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.product-detail:nth-child(even) .product-detail-inner {
  direction: rtl;
}

.product-detail:nth-child(even) .product-detail-inner > * {
  direction: ltr;
}

.product-detail-visual {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: 20px;
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.product-detail-visual::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 200px;
  height: 200px;
  background: var(--cyan);
  opacity: 0.05;
  border-radius: 50%;
}

.product-detail-visual svg {
  width: 120px;
  height: 120px;
  fill: var(--cyan);
  margin-bottom: 24px;
}

.product-detail-visual h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.product-detail-visual p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.5);
}

.product-detail-info h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 16px;
}

.product-detail-info > p {
  font-size: 1rem;
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 24px;
}

.product-specs-list {
  margin-bottom: 24px;
}

.product-specs-list h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark-text);
  margin-bottom: 12px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.9rem;
}

.spec-row span:first-child {
  color: var(--gray-text);
}

.spec-row span:last-child {
  color: var(--dark-text);
  font-weight: 600;
}

.product-pricing {
  background: var(--cyan-glow);
  border: 1px solid rgba(0, 200, 224, 0.2);
  border-radius: 12px;
  padding: 24px;
  margin-top: 24px;
}

.product-pricing h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.9rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
}

.price-row:last-child {
  border-bottom: none;
}

.price-row span:first-child {
  color: var(--gray-text);
}

.price-row span:last-child {
  color: var(--dark-text);
  font-weight: 700;
}

.price-note {
  font-size: 0.8rem;
  color: var(--gray-text);
  margin-top: 12px;
  font-style: italic;
}

/* ============================================
   ALT SAYFA — BLOG
   ============================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.blog-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.blog-card-header {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  padding: 30px 24px;
  position: relative;
  overflow: hidden;
}

.blog-card-header::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  background: var(--cyan);
  opacity: 0.05;
  border-radius: 50%;
}

.blog-card-header span {
  font-size: 0.8rem;
  color: var(--cyan);
  font-weight: 600;
}

.blog-card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-top: 8px;
  line-height: 1.5;
}

.blog-card-body {
  padding: 24px;
}

.blog-card-body p {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.blog-card-body a {
  font-size: 0.9rem;
  color: var(--cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.blog-card-body a:hover {
  gap: 10px;
}

/* ============================================
   ALT SAYFA — İLETİŞİM
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-card .icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--cyan-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-card .icon svg {
  width: 22px;
  height: 22px;
  fill: var(--cyan);
}

.contact-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 4px;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.5;
}

.contact-card a {
  color: var(--cyan);
  transition: opacity var(--transition);
}

.contact-card a:hover {
  opacity: 0.8;
}

.contact-map {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-top: 30px;
}

.contact-map iframe {
  width: 100%;
  height: 300px;
  border: none;
}

.contact-form-wrapper {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: 20px;
  padding: 40px;
}

.contact-form-wrapper h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.contact-form-wrapper > p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 30px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero {
    background: url('../assets/icon-watermark.svg') no-repeat center center / 70% auto, linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  }

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

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

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

  .sectors-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .about-content,
  .product-detail-inner,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .product-detail:nth-child(even) .product-detail-inner {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .hero {
    background: url('../assets/icon-watermark.svg') no-repeat center center / 90% auto, linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  }

  :root {
    --header-height: 70px;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--navy);
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    transition: right var(--transition);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu a {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .products-grid,
  .services-grid,
  .comparison-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .contact-form {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn-primary, .btn-secondary {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-bar {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 70px 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .whatsapp-float {
    width: 52px;
    height: 52px;
    bottom: 16px;
    right: 16px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }

  .whatsapp-float::before {
    display: none;
  }
}