/* ==========================================================================
   Evo Yazılım - Ultra Modern CRO Tasarım Sistemi & CSS Stilleri
   Inspired by Qukasoft & i-Yazılım
   ========================================================================== */

:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #ccfbf1;
  --primary-glow: rgba(13, 148, 136, 0.25);
  --secondary: #0e7490;
  --secondary-dark: #164e63;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --dark-bg: #0f172a;
  --dark-card: #1e293b;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --border-dark: #334155;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 35px -10px rgba(13, 148, 136, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Smooth Entrance Scroll Animations (Görünürlük Garanti Edilmiş) */
.fade-in-up {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Typography & Section Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.section {
  padding: 96px 0;
  position: relative;
}

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px auto;
}

.section-header h1 span,
.section-header h2 span,
.section-header h3 span {
  color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header .badge,
.section-header .calc-badge {
  -webkit-background-clip: border-box !important;
  -webkit-text-fill-color: initial !important;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-top: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

.badge-accent {
  background-color: #fef3c7;
  color: #92400e;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px var(--primary-glow);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #ffffff;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border);
  color: var(--text);
}

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

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* Topbar Campaign Banner with Countdown Timer */
.top-campaign-bar {
  background-color: var(--dark-bg);
  color: #ffffff;
  padding: 10px 0;
  font-size: 0.875rem;
  position: relative;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-campaign-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-campaign-text {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.countdown-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.countdown-item {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 4px 8px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  min-width: 32px;
  text-align: center;
}

.top-campaign-btn {
  background-color: var(--accent);
  color: #ffffff;
  padding: 6px 16px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
}

.top-campaign-btn:hover {
  background-color: var(--accent-hover);
}

/* Header & Nav Layout Fix */
.main-header {
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 20px;
}

.logo-text {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--dark-bg);
  white-space: nowrap;
}

.logo-text span {
  color: var(--primary);
}

.main-nav ul {
  display: flex;
  gap: 18px;
  align-items: center;
  list-style: none;
}

.main-nav a {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text);
  padding: 6px 0;
  position: relative;
  white-space: nowrap;
}

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

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.phone-click {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--dark-bg);
  font-size: 0.88rem;
  white-space: nowrap;
}

.phone-click i {
  color: var(--primary);
}

/* Hero Section */
.hero-section {
  padding: 70px 0 90px 0;
  background: radial-gradient(circle at 80% 20%, rgba(13, 148, 136, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 10% 80%, rgba(14, 116, 144, 0.08) 0%, transparent 60%);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--dark-bg);
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* Hero Lead Form Card */
.lead-form-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
}

.lead-form-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  text-align: center;
}

.lead-form-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* Installment & Payment Logos Band */
.payment-logos-band {
  background: var(--bg-alt);
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.payment-logos-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.payment-logos-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.payment-cards-grid {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.payment-card-badge {
  background: #ffffff;
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--dark-bg);
  box-shadow: var(--shadow-sm);
}

/* E-Commerce Packages & Dynamic Pricing Section */
.pricing-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.pricing-tab-btn {
  padding: 12px 28px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid var(--border);
  background: #ffffff;
  cursor: pointer;
  transition: var(--transition);
}

.pricing-tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 8px 20px var(--primary-glow);
}

/* Billing Toggle Switch */
.billing-switch-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  font-weight: 700;
}

.billing-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 32px;
}

.billing-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #cbd5e1;
  transition: .4s;
  border-radius: 34px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 24px;
  width: 24px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .switch-slider {
  background-color: var(--primary);
}

input:checked + .switch-slider:before {
  transform: translateX(28px);
}

/* Pricing Cards Grid */
.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-bottom: 64px;
}

.package-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  opacity: 1 !important;
  visibility: visible !important;
}

.package-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.package-card.popular {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-lg);
}

/* Table Responsive Helper */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th, .table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 16px 0;
  }
  .main-nav ul {
    flex-wrap: wrap;
    gap: 12px;
  }
}