/* ========================================
   Mobini IoT — Main Stylesheet
   ======================================== */

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

:root {
  /* Primary: Vibrant Teal from the top-left wing */
  --color-primary: #17A2B8;
  --color-primary-dark: #117A8B;
  --color-primary-light: #4DD0E1;

  /* Secondary: Deepest Navy from the logo's core and shadows */
  --color-secondary: #0B1120;

  /* Accent: Warm Coral/Orange from the top-right wing */
  --color-accent: #E86A58;

  /* Backgrounds: Clean and crisp with a very subtle cool tint */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F4F7F9;

  /* Text: Using the secondary deep navy instead of stark black for a unified look */
  --color-text: #0B1120;
  --color-text-light: #64748B;

  /* Standard Neutrals & Borders */
  --color-white: #FFFFFF;
  --color-border: #E2E8F0;

  /* Typography & Structure (Kept exactly as you had them) */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-max: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1), 0 12px 32px rgba(0,0,0,0.06);
  --transition: 0.3s ease;
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-img {
  height: 40px;
  width: auto;
}

.logo-img[src$=".png"] {
  min-width: 40px;
  min-height: 40px;
  border-radius: 8px;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

/* Language Switcher */
.lang-switch {
  display: flex;
  align-items: center;
  margin-left: 0.75rem;
  gap: 0.25rem;
}

.lang-switch a {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  color: var(--color-text-light);
  text-decoration: none;
  transition: all var(--transition);
}

.lang-switch a:hover {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.lang-switch a.active {
  background: var(--color-primary);
  color: var(--color-white);
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 124, 102, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* ========================================
   Section Styles
   ======================================== */
section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 1rem;
}

.section-intro {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-tagline {
  text-align: center;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-top: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: 10rem 0 6rem;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* Placeholder for missing images */
.hero-visual img[src$=".png"],
.solution-visual img[src$=".png"],
.serve-card img[src$=".png"],
.challenge-icon img[src$=".png"],
.team-member img[src$=".png"] {
  background: linear-gradient(135deg, #e0f2ef 0%, #d1e8e3 50%, #c5ddd7 100%);
  min-height: 60px;
  border-radius: var(--radius);
}

.hero-visual img {
  min-height: 300px;
  background: linear-gradient(135deg, #0D7C66 0%, #1A3A5C 100%);
  border-radius: var(--radius);
}

.challenge-icon img {
  min-height: 64px;
  min-width: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e0f2ef 0%, #0D7C66 100%);
}

.solution-visual img {
  min-height: 250px;
  background: linear-gradient(135deg, #f0f5f3 0%, #0D7C66 50%, #1A3A5C 100%);
}

.serve-card img {
  min-height: 80px;
  min-width: 80px;
  background: linear-gradient(135deg, #e0f2ef 0%, #0D7C66 100%);
}

.team-member img {
  min-height: 80px;
  min-width: 80px;
  background: linear-gradient(135deg, #1A3A5C 0%, #0D7C66 100%);
  border-radius: 50%;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 2rem;
}

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

.hero-visual img {
  width: 100%;
  border-radius: var(--radius);
}

/* ========================================
   Challenges Section
   ======================================== */
.challenges {
  background: var(--color-white);
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.challenge-card {
  background: var(--color-bg-alt);
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.challenge-icon img {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
}

.challenge-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
}

.challenge-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions {
  background: var(--color-bg);
}

.solution-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.solution-block.reverse {
  direction: rtl;
}

.solution-block.reverse > * {
  direction: ltr;
}

.solution-visual img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.solution-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

.solution-content p {
  color: var(--color-text-light);
  margin-bottom: 1.25rem;
}

.feature-list {
  list-style: none;
  margin-bottom: 1.25rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.solutions-footer {
  text-align: center;
  margin-top: 3rem;
  padding: 2.5rem;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.solutions-footer h4 {
  font-size: 1.15rem;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.design-principles {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.principle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.principle-icon {
  font-size: 1.5rem;
}

.principle p {
  font-size: 0.95rem;
  color: var(--color-text);
}

/* ========================================
   Why Us Section
   ======================================== */
.why-us {
  background: var(--color-secondary);
  color: var(--color-white);
}

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

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.why-card {
  background: rgba(255, 255, 255, 0.08);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform var(--transition), background var(--transition);
}

.why-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
}

.why-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.why-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.why-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.pre-launch-note {
  text-align: center;
  font-style: italic;
  color: rgba(255, 255, 255, 0.7);
  max-width: 700px;
  margin: 0 auto;
}

/* ========================================
   How We Work Section
   ======================================== */
.how-we-work {
  background: var(--color-white);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.step {
  text-align: center;
  padding: 1.5rem;
  flex: 1;
  min-width: 180px;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.step-connector {
  width: 60px;
  height: 2px;
  background: var(--color-border);
  margin-top: 2.75rem;
  flex-shrink: 0;
}

.pilot-cta {
  text-align: center;
  padding: 3rem;
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  border-radius: var(--radius);
  border: 2px dashed var(--color-primary-light);
}

.pilot-cta h3 {
  font-size: 1.35rem;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

.pilot-cta p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

/* ========================================
   Who We Serve Section
   ======================================== */
.who-we-serve {
  background: var(--color-bg);
}

.serve-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.serve-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.serve-card img {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  object-fit: cover;
}

.serve-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-secondary);
}

/* ========================================
   About Section
   ======================================== */
.about {
  background: var(--color-white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.mission {
  padding: 1.25rem;
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.about-team h3 {
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.team-member {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.team-member img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.team-member h4 {
  font-size: 1.1rem;
  color: var(--color-secondary);
}

.role {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.team-capabilities {
  list-style: none;
  margin-bottom: 1rem;
}

.team-capabilities li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.35rem;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.team-capabilities li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.team-ethos {
  font-weight: 600;
  color: var(--color-secondary);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  background: var(--color-bg);
}

.contact-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--color-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--color-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 124, 102, 0.1);
}

.contact-form .btn {
  width: 100%;
}

.contact-info {
  padding: 2rem;
}

.contact-info h3 {
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: 1.25rem;
}

.contact-info p {
  margin-bottom: 0.75rem;
  color: var(--color-text-light);
}

.trust-badges {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.trust-badges p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255, 255, 255, 0.8);
  padding: 3rem 0 1.5rem;
}

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

.footer-logo {
  height: 36px;
  width: auto;
  margin-bottom: 0.75rem;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.site-footer h4 {
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 1rem;
}

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

.footer-links li {
  margin-bottom: 0.4rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual img {
    min-height: 200px;
  }

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

  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }

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

  .solution-block,
  .solution-block.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

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

  .about-content {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  section {
    padding: 3.5rem 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero {
    padding: 7rem 0 4rem;
  }

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

  /* Mobile navigation */
  .nav-toggle {
    display: block;
    z-index: 1001;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
    transition: right var(--transition);
    gap: 0;
  }

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

  .nav-link {
    padding: 0.75rem 0;
    font-size: 1rem;
  }

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

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

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

  .process-steps {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    width: 2px;
    height: 30px;
    margin: 0;
  }

  .team-member {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

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

  .footer-logo {
    margin: 0 auto 0.75rem;
  }
}

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

  .design-principles {
    flex-direction: column;
    align-items: center;
  }
}

/* ========================================
   RTL (Persian / Farsi) Support
   ======================================== */
.rtl {
  font-family: 'Vazirmatn', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  direction: rtl;
  text-align: right;
}

.rtl .section-title,
.rtl .section-intro,
.rtl .section-tagline,
.rtl .pre-launch-note {
  text-align: center;
}

.rtl .navbar {
  flex-direction: row-reverse;
}

.rtl .logo {
  flex-direction: row-reverse;
}

.rtl .nav-menu {
  flex-direction: row-reverse;
}

.rtl .hero .container {
  direction: rtl;
}

.rtl .hero-cta {
  justify-content: flex-start;
}

.rtl .feature-list li {
  padding-left: 0;
  padding-right: 1.5rem;
}

.rtl .feature-list li::before {
  left: auto;
  right: 0;
}

.rtl .solution-block.reverse {
  direction: ltr;
}

.rtl .solution-block.reverse > * {
  direction: rtl;
}

.rtl .step p,
.rtl .step h3 {
  text-align: center;
}

.rtl .mission {
  border-left: none;
  border-right: 4px solid var(--color-primary);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.rtl .team-member {
  flex-direction: row-reverse;
}

.rtl .team-member div {
  text-align: right;
}

.rtl .team-capabilities li {
  padding-left: 0;
  padding-right: 1.5rem;
}

.rtl .team-capabilities li::before {
  left: auto;
  right: 0;
}

.rtl .contact-content {
  direction: rtl;
}

.rtl .form-group label {
  text-align: right;
}

.rtl .form-group input,
.rtl .form-group select,
.rtl .form-group textarea {
  text-align: right;
  direction: rtl;
}

.rtl .contact-info {
  text-align: right;
}

.rtl .footer-grid {
  direction: rtl;
}

.rtl .footer-links ul {
  text-align: right;
}

.rtl .lang-switch {
  margin-right: 0.5rem;
  margin-left: 0;
}

/* RTL responsive overrides */
@media (max-width: 768px) {
  .rtl .nav-menu {
    left: -100%;
    right: auto;
    text-align: right;
  }

  .rtl .nav-menu.active {
    left: 0;
    right: auto;
  }

  .rtl .team-member {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .rtl .team-member div {
    text-align: center;
  }

  .rtl .footer-grid {
    text-align: center;
  }
}