:root {
--primary: #6366f1;
--primary-dark: #4f46e5;
--buymecoffee: #2c9f9f;
--primary-light: #a5b4fc;
--secondary: #10b981;
--text: #1f2937;
--text-light: #6b7280;
--background: #ffffff;
--background-alt: #f8fafc;
--white: #ffffff;
--gray-light: #f3f4f6;
--border: #e5e7eb;
--gradient: linear-gradient(135deg, #6366f1 0%, #10b981 100%);
--gradient-light: linear-gradient(135deg, #a5b4fc 0%, #34d399 100%);
--shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
--shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
--radius: 16px;
--radius-lg: 24px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  }

body {
font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
line-height: 1.6;
color: var(--text);
background: var(--background);
min-height: 100vh;
display: flex;
flex-direction: column;
}

.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 24px;
}

/* Header - TÜM SAYFALARDA AYNI */
header {
background: var(--white);
box-shadow: var(--shadow);
position: sticky;
top: 0;
z-index: 100;
backdrop-filter: blur(10px);
}

header .container {
display: flex;
justify-content: space-between;
align-items: center;
padding: 20px 24px;
}

h1 {
font-size: 28px;
font-weight: 800;
background: var(--gradient);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
letter-spacing: -0.5px;
}

nav {
display: flex;
align-items: center;
gap: 32px;
}

nav a {
text-decoration: none;
color: var(--text);
font-weight: 500;
transition: all 0.3s ease;
position: relative;
padding: 8px 0;
}

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

nav a::after {
content: '';
position: absolute;
bottom: 0;
left: 0;
width: 0;
height: 2px;
background: var(--gradient);
transition: width 0.3s ease;
}

nav a:hover::after {
width: 100%;
}

.lang-switch {
display: flex;
background: var(--gray-light);
border-radius: 20px;
padding: 4px;
margin-left: 8px;
}

.lang-switch button {
padding: 8px 16px;
border: none;
background: transparent;
border-radius: 16px;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
font-size: 14px;
}

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

/* Main Content */
main {
flex: 1;
}

/* Hero Section - Index için */
.hero {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 80px;
align-items: center;
min-height: 85vh;
padding: 80px 0;
}

.hero-text h2 {
font-size: 60px;
font-weight: 800;
line-height: 1.1;
margin-bottom: 24px;
background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
letter-spacing: -1px;
}

.hero-text p {
font-size: 20px;
color: var(--text-light);
margin-bottom: 40px;
max-width: 500px;
line-height: 1.7;
}

.download-buttons {
display: flex;
gap: 20px;
}

.download-buttons img {
height: 56px;
transition: all 0.3s ease;
cursor: pointer;
}

.download-buttons img:hover {
transform: translateY(-4px);
box-shadow: var(--shadow-lg);
}

.hero-image {
display: flex;
justify-content: center;
align-items: center;
position: relative;
background: transparent !important;
}

.hero-image::before {
display: none;
}

.hero-image img {
max-width: 100%;
height: auto;
max-height: 600px;
transition: all 0.5s ease;
background: transparent !important;
mix-blend-mode: normal !important;
}

.hero-image img:hover {
transform: perspective(1000px) rotateY(-5deg) rotateX(5deg) scale(1.02);
}

/* Content Pages (About, Privacy, Support) */
.content-page {
padding: 100px 0;
text-align: left;
background: var(--background-alt);
}

.content-section {
max-width: 800px;
margin: 0 auto;
background: var(--white);
padding: 60px;
border-radius: var(--radius-lg);
box-shadow: var(--shadow);
border: 1px solid var(--border);
}

.content-section h2 {
font-size: 48px;
font-weight: 800;
margin-bottom: 32px;
background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
letter-spacing: -1px;
text-align: center;
}

.content-section p {
font-size: 18px;
line-height: 1.8;
color: var(--text-light);
margin-bottom: 24px;
text-align: left;
}

.content-section p:last-child {
margin-bottom: 0;
}

/* Features Grid - About sayfası için */
.features-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 32px;
margin-top: 48px;
}

.feature-card {
background: var(--white);
padding: 32px;
border-radius: var(--radius);
text-align: center;
box-shadow: var(--shadow);
border: 1px solid var(--border);
transition: all 0.3s ease;
}

.feature-card:hover {
transform: translateY(-8px);
box-shadow: var(--shadow-lg);
}

.feature-icon {
width: 64px;
height: 64px;
margin: 0 auto 20px;
background: var(--gradient);
border-radius: 16px;
display: flex;
align-items: center;
justify-content: center;
font-size: 28px;
color: white;
}

.feature-card h3 {
font-size: 20px;
font-weight: 700;
margin-bottom: 12px;
color: var(--text);
}

.feature-card p {
font-size: 16px;
color: var(--text-light);
margin: 0;
text-align: center;
}

/* Support Section - About sayfası için */
.support-section {
margin-top: 60px;
padding-top: 40px;
border-top: 1px solid var(--border);
}

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

.support-content h3 {
font-size: 28px;
font-weight: 700;
margin-bottom: 20px;
background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}

.support-content p {
font-size: 16px;
line-height: 1.7;
margin-bottom: 16px;
text-align: left;
}

.support-button {
margin-top: 30px;
display: flex;
justify-content: center;
}

.coffee-button {
display: inline-flex;
align-items: center;
gap: 12px;
background: var(--buymecoffee);
color: white;
padding: 16px 32px;
border-radius: 50px;
text-decoration: none;
font-weight: 600;
font-size: 18px;
transition: all 0.3s ease;
box-shadow: 0 4px 15px rgba(41, 59, 161, 0.3);
}

.coffee-button:hover {
transform: translateY(-3px);
box-shadow: 0 8px 25px rgba(3, 146, 228, 0.4);
}

.coffee-icon {
font-size: 20px;
}

/* Footer - TÜM SAYFALARDA AYNI */
footer {
text-align: center;
padding: 40px 0;
color: var(--text-light);
border-top: 1px solid var(--border);
background: var(--white);
}

footer .container {
max-width: 1200px;
margin: 0 auto;
padding: 0 24px;
}

/* Animations */
@keyframes fadeIn {
from {
opacity: 0;
transform: translateY(30px);
}
to {
opacity: 1;
transform: translateY(0);
}
}

.fade-in {
animation: fadeIn 0.8s ease-out;
}

/* Mobile Responsive - GÜNCELLENDİ */
@media (max-width: 968px) {
.hero {
grid-template-columns: 1fr;
gap: 60px;
text-align: center;
padding: 60px 0;
}

.hero-text h2 {
font-size: 48px;
}

.content-section {
padding: 40px;
margin: 0 20px;
}

.content-section h2 {
font-size: 36px;
}
}

/* Küçük ekran header düzeni */
@media (max-width: 768px) {
header .container {
display: flex;
flex-direction: column; /* Üst-alt satır */
align-items: stretch;
padding: 15px 20px;
}

/* Üst satır: logo ve dil seçeneği */
.top-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 10px;
}

header h1 {
order: 1;
margin: 0;
}

.lang-switch {
order: 2;
margin: 0;
}

/* Alt satır: nav menü */
nav {
order: 3;
display: flex;
justify-content: center;
gap: 15px;
flex-wrap: wrap;
}

nav a {
font-size: 14px;
padding: 6px 0;
white-space: nowrap;
}

.hero-text h2 {
font-size: 36px;
}

.hero-text p {
font-size: 18px;
}

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

.content-page {
padding: 60px 0;
}

.content-section {
padding: 32px 24px;
text-align: left;
}

.content-section h2 {
font-size: 32px;
}

.support-content h3 {
font-size: 24px;
}

.coffee-button {
padding: 14px 28px;
font-size: 16px;
}
}

@media (max-width: 480px) {
.hero-text h2 {
font-size: 32px;
}

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

.download-buttons img {
height: 48px;
}

.content-section h2 {
font-size: 28px;
}

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

nav {
gap: 10px;
}

nav a {
font-size: 13px;
padding: 5px 8px;
}

.lang-switch button {
padding: 6px 12px;
font-size: 13px;
}
}

@media (max-width: 360px) {
header .container {
padding: 12px 15px;
}

nav {
gap: 8px;
}

nav a {
font-size: 12px;
}

.lang-switch {
padding: 3px;
}

.lang-switch button {
padding: 5px 10px;
font-size: 12px;
}
}