/* ==========================================================================
   FTK Official Website - Design System v11 (Product Images Integration)
   ========================================================================== */

/* Dark Theme Variables */
:root, [data-theme="dark"] {
  --color-bg-main: #090d16;
  --color-bg-card: #111726;
  --color-bg-card-hover: #172033;
  --color-surface: #1a233a;
  
  --color-cyan: #11ddf5;
  --color-cyan-glow: rgba(17, 221, 245, 0.25);
  --color-purple: #7000ff;
  --color-purple-glow: rgba(112, 0, 255, 0.25);
  
  --color-text-main: #f8fafc;
  --color-text-muted: #cbd5e1;
  --color-text-subtle: #94a3b8;
  
  --border-card: rgba(255, 255, 255, 0.12);
  --border-card-hover: rgba(17, 221, 245, 0.5);
  
  --header-bg: rgba(9, 13, 22, 0.88);
  --hero-overlay: linear-gradient(180deg, rgba(9, 13, 22, 0.78) 0%, rgba(9, 13, 22, 0.95) 100%);
  --shadow-card: 0 15px 35px rgba(0, 0, 0, 0.5);
}

/* Light Theme Variables */
[data-theme="light"] {
  --color-bg-main: #f1f5f9;
  --color-bg-card: #ffffff;
  --color-bg-card-hover: #f8fafc;
  --color-surface: #e2e8f0;
  
  --color-cyan: #0284c7;
  --color-cyan-glow: rgba(2, 132, 199, 0.15);
  --color-purple: #6d28d9;
  --color-purple-glow: rgba(109, 40, 217, 0.15);
  
  --color-text-main: #0f172a;
  --color-text-muted: #334155;
  --color-text-subtle: #64748b;
  
  --border-card: rgba(15, 23, 42, 0.1);
  --border-card-hover: rgba(2, 132, 199, 0.4);
  
  --header-bg: rgba(255, 255, 255, 0.9);
  --hero-overlay: linear-gradient(180deg, rgba(224, 242, 254, 0.78) 0%, rgba(241, 245, 249, 0.96) 100%);
  --shadow-card: 0 15px 35px rgba(15, 23, 42, 0.08);
}

:root {
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 9999px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-brand: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-purple) 100%);
}

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

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

body {
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

ul {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 5;
  box-sizing: border-box;
}

.section {
  padding: 5.5rem 0;
  position: relative;
  overflow-x: hidden;
}

/* Scroll Reveal Fade-In Animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Section Titles */
.section-title {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
}

.sub-title {
  display: inline-block;
  color: var(--color-cyan);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
  padding: 0.35rem 1rem;
  background: var(--color-cyan-glow);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-pill);
}

.title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .title {
    font-size: 2.75rem;
  }
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Typewriter Cursor */
.typewriter-cursor {
  font-weight: 300;
  color: var(--color-cyan);
  animation: blink 0.8s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Header & Navbar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: var(--transition-smooth);
}

.header.scrolled {
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-card);
  padding: 0.85rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

.logo {
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-cyan);
}

/* Controls */
.controls-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn {
  background: var(--color-surface);
  border: 1px solid var(--border-card);
  color: var(--color-text-main);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  transform: scale(1.1);
  border-color: var(--color-cyan);
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-surface);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-card);
}

.lang-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
}

.lang-btn:hover, .lang-btn.active {
  color: var(--color-cyan);
  background: var(--color-cyan-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--color-cyan-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--color-cyan-glow);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-main);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 991px) {
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - 70px);
    background: var(--color-bg-card);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.5rem;
    transition: var(--transition-smooth);
    border-left: 1px solid var(--border-card);
    box-shadow: -10px 0 30px rgba(0,0,0,0.2);
  }

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

/* Hero Section */
.hero-section {
  padding-top: 10rem;
  padding-bottom: 7rem;
  background-image: var(--hero-overlay), url('../../assets/images/hero-bg4.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
  text-align: center;
  overflow: hidden;
}

.hero-section .container {
  position: relative;
  z-index: 10;
}

.hero-shape-1 {
  position: absolute;
  top: 0;
  left: 0;
  max-width: 180px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.75;
  animation: floatUpDown 5s ease-in-out infinite alternate;
}

.hero-shape-2 {
  position: absolute;
  bottom: 0;
  right: 0;
  max-width: 200px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.75;
  animation: floatUpDown 6s ease-in-out infinite alternate-reverse;
}

@media (max-width: 768px) {
  .hero-shape-1 {
    max-width: 100px;
    opacity: 0.35;
  }

  .hero-shape-2 {
    max-width: 110px;
    opacity: 0.35;
  }
}

@media (max-width: 480px) {
  .hero-shape-1 {
    max-width: 75px;
    opacity: 0.25;
  }

  .hero-shape-2 {
    max-width: 85px;
    opacity: 0.25;
  }
}

@keyframes floatUpDown {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-14px); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  background: var(--color-cyan-glow);
  border: 1px solid var(--color-cyan);
  border-radius: var(--radius-pill);
  color: var(--color-cyan);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 4rem;
  }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 750px;
  margin: 0 auto 2.5rem auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Product Cards */
.product-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-bottom: 3rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.product-tag {
  display: inline-block;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.tag-vitals {
  background: var(--color-cyan-glow);
  color: var(--color-cyan);
  border: 1px solid var(--color-cyan);
}

.tag-appventas {
  background: var(--color-purple-glow);
  color: var(--color-purple);
  border: 1px solid var(--color-purple);
}

.product-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.product-desc {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.product-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

@media (min-width: 576px) {
  .product-features {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
  font-weight: 500;
}

/* Product Mockup Images Styling */
.product-img-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  background: var(--color-surface);
  transition: var(--transition-smooth);
}

.product-img-wrapper:hover {
  border-color: var(--color-cyan);
  transform: scale(1.02);
  box-shadow: 0 20px 40px var(--color-cyan-glow);
}

.product-img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-md);
}

.preview-box {
  background: var(--color-surface);
  border: 1px dashed var(--border-card);
  border-radius: var(--radius-md);
  height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

/* Feature Cards */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .feature-card {
  background-color: #111726;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .feature-card-1 {
  background-image: linear-gradient(180deg, rgba(17, 23, 38, 0.88) 0%, rgba(17, 23, 38, 0.96) 100%), url('../../assets/images/bg/feat-bg.jpg');
}

[data-theme="dark"] .feature-card-2 {
  background-image: linear-gradient(180deg, rgba(17, 23, 38, 0.88) 0%, rgba(17, 23, 38, 0.96) 100%), url('../../assets/images/bg/feat-2-bg.jpg');
}

[data-theme="dark"] .feature-card-3 {
  background-image: linear-gradient(180deg, rgba(17, 23, 38, 0.88) 0%, rgba(17, 23, 38, 0.96) 100%), url('../../assets/images/bg/feat-3-bg.jpg');
}

[data-theme="light"] .feature-card {
  background-color: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}

[data-theme="light"] .feature-card-1 {
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.96) 100%), url('../../assets/images/bg/feat-bg.jpg');
}

[data-theme="light"] .feature-card-2 {
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.96) 100%), url('../../assets/images/bg/feat-2-bg.jpg');
}

[data-theme="light"] .feature-card-3 {
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.96) 100%), url('../../assets/images/bg/feat-3-bg.jpg');
}

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

.card-icon {
  width: 54px;
  height: 54px;
  background: var(--color-cyan-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-cyan);
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.card-desc {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* Clients Showcase */
.clients-section {
  background-image: linear-gradient(180deg, var(--color-bg-main) 0%, rgba(17, 221, 245, 0.03) 100%), url('../../assets/images/bg/testi-bg3.jpg');
  background-size: cover;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .clients-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .clients-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.client-item {
  background: var(--color-bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-card);
}

.client-item:hover {
  border-color: var(--color-cyan);
  transform: scale(1.05);
}

.client-item img {
  max-height: 45px;
  width: auto;
}

/* Contact Section & Mobile Responsive Form Fix (CSS Grid min-width:0) */
.contact-section {
  position: relative;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  overflow-x: hidden;
}

[data-theme="dark"] .contact-section {
  background-image: linear-gradient(180deg, rgba(9, 13, 22, 0.82) 0%, rgba(9, 13, 22, 0.95) 100%), url('../../assets/images/shape/contact-shape.png');
}

[data-theme="light"] .contact-section {
  background-image: linear-gradient(180deg, rgba(241, 245, 249, 0.82) 0%, rgba(241, 245, 249, 0.96) 100%), url('../../assets/images/shape/contact-shape.png');
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-card);
  background-color: var(--color-bg-card);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.contact-container > * {
  min-width: 0 !important;
  max-width: 100% !important;
}

@media (min-width: 992px) {
  .contact-container {
    grid-template-columns: 1fr 1.2fr;
  }
}

@media (max-width: 768px) {
  .contact-container {
    padding: 1.5rem 1rem !important;
    gap: 1.5rem;
  }

  .product-card {
    padding: 1.5rem 1rem !important;
  }
}

#contact-form {
  min-width: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}

.form-group {
  margin-bottom: 1.25rem;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  min-width: 0 !important;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text-main);
}

.form-input, .form-textarea, select.form-input {
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  box-sizing: border-box !important;
  padding: 0.85rem 0.9rem !important;
  background: var(--color-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan-glow);
}

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

.cf-turnstile {
  max-width: 100% !important;
  overflow-x: auto;
  box-sizing: border-box;
}

.cf-turnstile iframe {
  max-width: 100% !important;
}

/* Footer & Social Media Icons */
.footer {
  border-top: 1px solid var(--border-card);
  padding: 3.5rem 0 2.5rem 0;
  text-align: center;
  color: var(--color-text-subtle);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.social-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--border-card);
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: var(--transition-smooth);
}

.social-icon:hover {
  background: var(--color-cyan-glow);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--color-cyan-glow);
}