/* ========================================
   Hafızlık Arkadaşım - Website Styles
   ======================================== */

/* CSS Variables */
:root {
  --primary: #1B5E20;
  --primary-light: #4CAF50;
  --primary-dark: #0D3B12;
  --accent: #FFC107;
  --accent-light: #FFD54F;
  --background: #F5F5F5;
  --background-alt: #FFFFFF;
  --text: #212121;
  --text-light: #757575;
  --text-muted: #9E9E9E;
  --border: #E0E0E0;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-lg: rgba(0, 0, 0, 0.15);

  --font-heading: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background-color: var(--background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 15px rgba(27, 94, 32, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(27, 94, 32, 0.4);
  color: white;
}

.btn-secondary {
  background: white;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px var(--shadow);
  z-index: 1000;
  padding: 12px 0;
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-brand img {
  height: 40px;
  width: auto;
  border-radius: 10px;
}

.navbar-brand span {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

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

.navbar-menu a {
  color: var(--text);
  font-weight: 500;
}

.navbar-menu a:hover {
  color: var(--primary);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8fdf8 0%, #e8f5e9 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 150%;
  background: radial-gradient(circle, rgba(76, 175, 80, 0.1) 0%, transparent 70%);
  z-index: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(27, 94, 32, 0.1);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #111;
  color: #fff;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.store-btn:hover {
  background: #333;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.store-btn img {
  width: 22px !important;
  height: 22px !important;
  min-width: 22px;
  filter: brightness(0) invert(1);
  display: inline-block;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-mockup {
  max-width: 320px;
  border-radius: 48px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ========================================
   Features Section
   ======================================== */
.features {
  padding: 100px 0;
  background: white;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.125rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--background);
  padding: 32px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  border: 1px solid transparent;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  color: white;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-light);
  margin-bottom: 0;
}

/* ========================================
   How It Works Section
   ======================================== */
.how-it-works {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
}

.how-it-works .section-header h2,
.how-it-works .section-header p {
  color: white;
}

.how-it-works .section-header p {
  opacity: 0.9;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.step h3 {
  color: white;
  margin-bottom: 12px;
}

.step p {
  opacity: 0.9;
  margin-bottom: 0;
}

/* ========================================
   Download Section
   ======================================== */
.download {
  padding: 100px 0;
  background: white;
  text-align: center;
}

.download-content {
  max-width: 600px;
  margin: 0 auto;
}

.download h2 {
  margin-bottom: 16px;
}

.download p {
  color: var(--text-light);
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.download-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}


/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--text);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 48px;
  margin-bottom: 16px;
  border-radius: 12px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-links h4 {
  color: white;
  margin-bottom: 20px;
  font-size: 1rem;
}

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

.footer-links li {
  margin-bottom: 12px;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ========================================
   Legal Pages (Privacy, Terms)
   ======================================== */
.legal-page {
  padding: 120px 0 80px;
  background: white;
  min-height: 100vh;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  margin-bottom: 8px;
}

.legal-date {
  color: var(--text-light);
  margin-bottom: 40px;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--primary);
}

.legal-content h3 {
  font-size: 1.25rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

.legal-content p {
  color: var(--text-light);
  margin-bottom: 16px;
}

.legal-content ul {
  margin-left: 24px;
  margin-bottom: 16px;
  color: var(--text-light);
}

.legal-content li {
  margin-bottom: 8px;
}

/* ========================================
   Contact Page
   ======================================== */
.contact-page {
  padding: 120px 0 80px;
  background: var(--background);
  min-height: 100vh;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-content h1 {
  margin-bottom: 16px;
}

.contact-content > p {
  color: var(--text-light);
  margin-bottom: 40px;
}

.contact-card {
  background: white;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px var(--shadow);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.contact-info {
  text-align: left;
}

.contact-info span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.contact-info a,
.contact-info p {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0;
}

/* ========================================
   404 Page
   ======================================== */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  background: var(--background);
}

.error-content h1 {
  font-size: 8rem;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1;
}

.error-content h2 {
  margin-bottom: 16px;
}

.error-content p {
  color: var(--text-light);
  margin-bottom: 32px;
}

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

  .hero-content {
    max-width: 100%;
  }

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

  .hero-image {
    order: -1;
  }

  .hero-mockup {
    max-width: 280px;
  }

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

  .steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    gap: 16px;
  }

  .navbar-menu.active {
    display: flex;
  }

  .navbar-toggle {
    display: block;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .store-btn {
    justify-content: center;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }
}

/* ========================================
   Utilities
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }