/* ecell-guard.com.tr - Fully Mobile Responsive & Mixed Dark/Light Theme */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-dark-header: #0a0f1d;
  --bg-dark-section: #0f172a;
  --bg-dark-card: #1e293b;
  --bg-light-section: #ffffff;
  --bg-light-alt: #f8fafc;
  
  --text-dark-theme: #f8fafc;
  --text-dark-muted: #94a3b8;
  --text-light-theme: #0f172a;
  --text-light-muted: #475569;
  
  --primary: #0284c7;
  --primary-glow: #38bdf8;
  --primary-hover: #0369a1;
  --accent-cyan: #06b6d4;
  --border-dark: rgba(255, 255, 255, 0.12);
  --border-light: #e2e8f0;
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 10px -1px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-light-alt);
  color: var(--text-light-theme);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Mobile Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 15, 29, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-dark);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  position: relative;
}

.logo img {
  height: 42px;
  max-width: 100%;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 26px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark-muted);
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--primary-glow);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-glow);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hamburger Menu Button */
.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-dark);
  color: #ffffff;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 9px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: var(--transition);
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--primary-glow);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  min-height: 44px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #0077ff 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

.btn-secondary-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid var(--border-dark);
}

.btn-secondary-dark:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--primary-glow);
  color: var(--primary-glow);
}

.btn-secondary-light {
  background: #ffffff;
  color: var(--text-light-theme);
  border: 1px solid var(--border-light);
}

.btn-secondary-light:hover {
  background: #f1f5f9;
  border-color: var(--primary);
  color: var(--primary);
}

/* Hero Slider Section */
.slider-section {
  position: relative;
  margin-top: 43px;
  background: radial-gradient(circle at 50% 10%, #1e293b 0%, #0a0f1d 100%);
  color: var(--text-dark-theme);
  padding: 60px 0 70px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-dark);
}

.slider-wrapper {
  position: relative;

}

.slide {
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.slide.active {
  display: block;
  opacity: 1;
}

.slide-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  margin: 50px 0 0px 0;
}

.badge-dark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--primary-glow);
  font-weight: 700;
  margin-bottom: 18px;
}

.slide-title {
  font-size: 2.7rem;
  line-height: 1.2;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.slide-title span {
  color: var(--primary-glow);
}

.slide-desc {
  font-size: 1.05rem;
  color: var(--text-dark-muted);
  margin-bottom: 28px;
  max-width: 540px;
}

.slide-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.slide-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-dark);
  background: #000;
}

.slide-media img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  display: block;
}

.slide-media-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  background: rgba(10, 15, 29, 0.88);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-dark);
  text-align: center;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid var(--border-dark);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  font-size: 1.1rem;
}

.slider-arrow:hover {
  background: var(--primary-glow);
  color: #000000;
  border-color: var(--primary-glow);
}

.slider-arrow.prev { left: -16px; }
.slider-arrow.next { right: -16px; }

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  width: 32px;
  border-radius: 6px;
  background: var(--primary-glow);
}

/* Stats Ribbon */
.stats-section-dark {
  background: #070a14;
  color: var(--text-dark-theme);
  border-bottom: 1px solid var(--border-dark);
  padding: 30px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  text-align: center;
  position: relative;
  padding: 5px;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border-dark);
}

.stat-num {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--primary-glow);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-dark-muted);
  font-weight: 600;
}

/* Section Global */
.section {
  padding: 75px 0;
}

.section-dark {
  background: var(--bg-dark-section);
  color: var(--text-dark-theme);
}

.section-light {
  background: var(--bg-light-section);
  color: var(--text-light-theme);
}

.section-alt-light {
  background: var(--bg-light-alt);
  color: var(--text-light-theme);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 45px;
}

.section-title-dark {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  line-height: 1.25;
}

.section-title-light {
  font-size: 2.2rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  line-height: 1.25;
}

.section-subtitle-dark {
  font-size: 1.02rem;
  color: var(--text-dark-muted);
  line-height: 1.6;
}

.section-subtitle-light {
  font-size: 1.02rem;
  color: var(--text-light-muted);
  line-height: 1.6;
}

/* Video Showcase Area */
.video-player-container {
  background: #070a14;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-dark);
  margin-bottom: 30px;
  width: 100%;
}

.video-player-container video {
  width: 100%;
  height: auto;
  max-height: 540px;
  display: block;
}

.video-info-bar {
  background: #0f172a;
  color: #ffffff;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--border-dark);
  font-size: 0.9rem;
}

.video-info-bar strong {
  color: var(--primary-glow);
}

.frames-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 25px;
}

.frame-card-light {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.frame-card-light:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.frame-img-box {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: #000;
}

.frame-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.frame-card-light:hover .frame-img-box img {
  transform: scale(1.04);
}

.frame-step-num {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 700;
}

.frame-body {
  padding: 18px;
  flex: 1;
}

.frame-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #0f172a;
}

.frame-body p {
  color: var(--text-light-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Products Section */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.product-card-dark {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card-dark:hover {
  transform: translateY(-5px);
  border-color: var(--primary-glow);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.4);
}

.product-img-dark {
  width: 100%;
  height: 200px;
  background: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

.product-img-dark img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-body-dark {
  padding: 24px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-tag-dark {
  color: var(--primary-glow);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
}

.product-title-dark {
  font-size: 1.28rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}

.product-desc-dark {
  color: var(--text-dark-muted);
  font-size: 0.92rem;
  margin-bottom: 18px;
  flex-grow: 1;
}

.product-features-dark {
  list-style: none;
  margin-bottom: 22px;
}

.product-features-dark li {
  color: var(--text-dark-muted);
  font-size: 0.88rem;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.product-features-dark li::before {
  content: "✔";
  color: var(--primary-glow);
  font-weight: bold;
}

/* Standards Section */
.standards-box-light {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 45px 35px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.standards-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.standards-item {
  display: flex;
  gap: 14px;
}

.standards-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: #e0f2fe;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.standards-text h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: #0f172a;
}

.standards-text p {
  color: var(--text-light-muted);
  font-size: 0.88rem;
}

/* Partner Benefits */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.partner-card {
  background: var(--bg-dark-card);
  padding: 24px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  text-align: left;
}

.partner-card h4 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.partner-card p {
  color: var(--text-dark-muted);
  font-size: 0.88rem;
}

/* Form Styles */
.contact-container-dark {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 45px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 45px 35px;
  box-shadow: var(--shadow-xl);
}

.contact-info-dark h3 {
  font-size: 1.7rem;
  margin-bottom: 14px;
  color: #ffffff;
  line-height: 1.3;
}

.contact-info-dark p {
  color: var(--text-dark-muted);
  margin-bottom: 25px;
  font-size: 0.95rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-detail-icon-dark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.form-group label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-dark-muted);
}

.form-control-dark {
  width: 100%;
  padding: 12px 14px;
  background: #0f172a;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.92rem;
  transition: var(--transition);
}

.form-control-dark:focus {
  outline: none;
  border-color: var(--primary-glow);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

textarea.form-control-dark {
  resize: vertical;
  min-height: 100px;
}

/* Footer */
footer {
  background: #070a14;
  color: #ffffff;
  padding: 55px 0 25px;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 35px;
  margin-bottom: 35px;
}

.footer-col h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ffffff;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #64748b;
  font-size: 0.82rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .slide-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 30px;
  }
  .slide-title {
    font-size: 2.3rem;
  }
  .slide-desc {
    margin: 0 auto 24px;
  }
  .slide-buttons {
    justify-content: center;
  }
  .slide-media img {
    height: 300px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(2)::after {
    display: none;
  }
  .frames-grid, .products-grid {
    grid-template-columns: 1fr 1fr;
  }
  .standards-box-light {
    grid-template-columns: 1fr;
    padding: 35px 25px;
  }
  .partner-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-container-dark {
    grid-template-columns: 1fr;
    padding: 35px 25px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 43px;
    left: 0;
    width: 100%;
    background: rgba(10, 15, 29, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    flex-direction: column;
    padding: 25px 20px;
    gap: 18px;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    font-size: 1.05rem;
    display: block;
    padding: 8px 0;
  }

  .nav-actions .btn {
    display: none;
  }

  .nav-links .mobile-action-btn {
    display: inline-flex !important;
    width: 100%;
    margin-top: 10px;
  }

  .slider-section {
    padding: 40px 0 50px;
  }
  .slide-title {
    font-size: 1.85rem;
  }
  .slide-desc {
    font-size: 0.95rem;
  }
  .slide-media img {
    height: 220px;
  }
  .slider-arrow {
    display: none;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }
  .stat-num {
    font-size: 1.7rem;
  }
  .stat-label {
    font-size: 0.8rem;
  }

  .frames-grid, .products-grid, .partner-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .section {
    padding: 55px 0;
  }
  .section-title-dark, .section-title-light {
    font-size: 1.7rem;
  }
  .section-subtitle-dark, .section-subtitle-light {
    font-size: 0.92rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .logo img {
    height: 36px;
  }
  .slide-title {
    font-size: 1.6rem;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .stat-item::after {
    display: none !important;
  }
  .btn {
    width: 100%;
  }
  .slide-buttons {
    flex-direction: column;
    width: 100%;
  }
  .contact-container-dark, .standards-box-light {
    padding: 25px 16px;
  }
}