@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --black: #1a1a1a;
  --anthracite: #2d2d2d;
  --charcoal: #3a3a3a;
  --gray: #6b6b6b;
  --light-gray: #b0b0b0;
  --cream: #f5f0eb;
  --off-white: #faf7f2;
  --white: #ffffff;
  --burgundy: #cb113a;
  --burgundy-light: #e61442;
  --dark-green: #2d4a3e;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--off-white);
  color: var(--black);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* ============ NAVBAR ============ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 14px 0;
  transition: all 0.4s var(--transition);
  background: var(--burgundy); /* Üst kısım kırmızı şerit */
  box-shadow: 0 2px 15px rgba(0,0,0,0.15);
}
.navbar.scrolled {
  background: var(--burgundy);
  padding: 10px 0;
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem; font-weight: 700;
  letter-spacing: -0.5px; color: var(--cream);
}
.navbar.scrolled .nav-logo { color: var(--cream); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: var(--cream); transition: color 0.3s;
  position: relative; opacity: 0.9;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1.5px; background: var(--cream);
  transition: width 0.3s var(--transition);
}
.nav-links a:hover { color: var(--white); opacity: 1; }
.nav-links a:hover::after { width: 100%; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-toggle span {
  width: 24px; height: 2px; background: var(--cream);
  transition: all 0.3s;
}

/* ============ HERO ============ */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: #fdf5f6;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.4; filter: grayscale(30%);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0.3) 0%, rgba(26,26,26,0.7) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 900px; padding: 120px 24px;
  margin: 0 auto;
}
.hero-tag {
  font-size: 0.75rem; letter-spacing: 4px; text-transform: uppercase;
  color: var(--burgundy-light); margin-bottom: 32px;
  font-weight: 500;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.8s 0.3s forwards;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.15; font-weight: 400;
  color: var(--black); margin-bottom: 32px;
  letter-spacing: -1px;
  opacity: 0; transform: translateY(30px);
  animation: fadeUp 1s 0.5s forwards;
}
.hero-title em {
  font-style: italic; color: var(--burgundy-light);
}
.hero-desc {
  font-size: 1.1rem; color: var(--charcoal);
  max-width: 560px; line-height: 1.8;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.8s 0.8s forwards;
}
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--gray); font-size: 0.7rem;
  letter-spacing: 3px; text-transform: uppercase;
  opacity: 0; animation: fadeUp 0.8s 1.2s forwards;
}
.hero-scroll-line {
  width: 1px; height: 40px; background: var(--gray);
  animation: scrollPulse 2s infinite;
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============ SECTIONS ============ */
.section {
  padding: 100px 0;
}
.section-dark {
  background: var(--black); color: var(--cream);
}
.section-cream {
  background: var(--cream);
}
.section-header {
  margin-bottom: 60px;
}
.section-tag {
  font-size: 0.7rem; letter-spacing: 4px; text-transform: uppercase;
  color: var(--burgundy); margin-bottom: 16px; font-weight: 600;
}
.section-dark .section-tag { color: var(--burgundy-light); }
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400; line-height: 1.2;
  letter-spacing: -0.5px;
}
.section-desc {
  margin-top: 16px; color: var(--gray);
  max-width: 560px; font-size: 1rem;
}
.section-dark .section-desc { color: var(--light-gray); }

/* ============ ARTICLE CARDS ============ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 40px;
}
.article-card {
  opacity: 0; transform: translateY(30px);
  transition: all 0.6s var(--transition);
}
.article-card.visible {
  opacity: 1; transform: translateY(0);
}
.article-card-img {
  width: 100%; aspect-ratio: 16/10;
  object-fit: cover; border-radius: 4px;
  transition: transform 0.6s var(--transition);
  filter: grayscale(20%);
}
.article-card:hover .article-card-img {
  transform: scale(1.03); filter: grayscale(0%);
}
.article-card-body { padding: 20px 0; }
.article-card-cat {
  font-size: 0.7rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--burgundy); font-weight: 600; margin-bottom: 10px;
}
.article-card-title {
  font-family: var(--font-serif);
  font-size: 1.4rem; font-weight: 500;
  line-height: 1.35; margin-bottom: 12px;
  transition: color 0.3s;
}
.article-card:hover .article-card-title { color: var(--burgundy); }
.article-card-meta {
  display: flex; align-items: center; gap: 16px;
  font-size: 0.8rem; color: var(--gray);
}
.article-card-meta span { display: flex; align-items: center; gap: 4px; }

/* ============ VIDEO CARDS ============ */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}
.video-card {
  background: var(--anthracite); border-radius: 6px; overflow: hidden;
  transition: transform 0.4s var(--transition), box-shadow 0.4s;
  opacity: 0; transform: translateY(30px);
  cursor: pointer;
}
.video-card.visible { opacity: 1; transform: translateY(0); }
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.video-card-thumb {
  width: 100%; aspect-ratio: 16/9;
  object-fit: cover; position: relative;
}
.video-card-thumb-wrap {
  position: relative; overflow: hidden;
}
.video-play-icon {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 56px; height: 56px;
  background: rgba(122, 35, 50, 0.9);
  border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  transition: transform 0.3s, background 0.3s;
}
.video-play-icon svg { width: 20px; height: 20px; fill: white; margin-left: 3px; }
.video-card:hover .video-play-icon {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--burgundy);
}
.video-card-body { padding: 20px; }
.video-card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem; font-weight: 500;
  color: var(--cream); margin-bottom: 8px;
  line-height: 1.4;
}
.video-card-meta {
  font-size: 0.8rem; color: var(--light-gray);
}

/* ============ FEATURED TALK ============ */
.featured-talk {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}
.featured-talk-img {
  width: 100%; aspect-ratio: 4/3;
  object-fit: cover; border-radius: 4px;
  filter: grayscale(20%);
}
.featured-talk-content {}
.featured-talk-title {
  font-family: var(--font-serif);
  font-size: 2rem; font-weight: 400;
  line-height: 1.3; margin-bottom: 20px;
}
.featured-talk-desc {
  color: var(--gray); margin-bottom: 28px;
  line-height: 1.8;
}

/* ============ ABOUT SECTION (HOME) ============ */
.about-home {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-home-text {}
.about-home-quote {
  font-family: var(--font-serif);
  font-size: 1.6rem; font-style: italic;
  line-height: 1.5; color: var(--anthracite);
  border-left: 3px solid var(--burgundy);
  padding-left: 28px;
}

/* ============ CTA ============ */
.cta-section {
  text-align: center; padding: 120px 24px;
  background: var(--black);
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--cream); font-weight: 400;
  margin-bottom: 20px;
}
.cta-desc {
  color: var(--light-gray); max-width: 500px;
  margin: 0 auto 40px; font-size: 1.05rem;
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 40px; font-size: 0.85rem;
  letter-spacing: 1.5px; text-transform: uppercase;
  font-weight: 600; border-radius: 2px;
  transition: all 0.35s var(--transition);
}
.btn-primary {
  background: var(--burgundy); color: var(--white);
}
.btn-primary:hover {
  background: var(--burgundy-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(122,35,50,0.3);
}
.btn-outline {
  border: 1.5px solid var(--black); color: var(--black);
  background: transparent;
}
.btn-outline:hover {
  background: var(--black); color: var(--cream);
}
.btn-outline-light {
  border: 1.5px solid var(--cream); color: var(--cream);
}
.btn-outline-light:hover {
  background: var(--cream); color: var(--black);
}

/* ============ FOOTER ============ */
.footer {
  background: var(--black); color: var(--cream);
  padding: 80px 0 40px; border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 60px;
}
.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 1.5rem; font-weight: 700;
  margin-bottom: 16px;
}
.footer-brand-desc {
  color: var(--light-gray); font-size: 0.9rem;
  line-height: 1.7; max-width: 300px;
}
.footer-heading {
  font-size: 0.7rem; letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 20px;
  color: var(--light-gray); font-weight: 600;
}
.footer-links a {
  display: block; padding: 6px 0;
  color: var(--light-gray); font-size: 0.9rem;
  transition: color 0.3s;
}
.footer-links a:hover { color: var(--cream); }
.footer-social { display: flex; gap: 16px; margin-top: 8px; }
.footer-social a {
  width: 40px; height: 40px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  transition: all 0.3s;
}
.footer-social a:hover {
  background: var(--burgundy); border-color: var(--burgundy);
}
.footer-social svg { width: 16px; height: 16px; fill: var(--cream); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex; justify-content: space-between;
  align-items: center; font-size: 0.8rem;
  color: var(--gray);
}
.footer-manifesto {
  font-family: var(--font-serif);
  font-style: italic; color: var(--light-gray);
}

/* ============ PAGE HERO ============ */
.page-hero {
  padding: 160px 0 80px;
  background: #fdf5f6; color: var(--black);
  text-align: center;
}
.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400; margin-bottom: 16px;
}
.page-hero-desc {
  color: var(--charcoal); max-width: 560px;
  margin: 0 auto; font-size: 1.05rem;
}

/* ============ CATEGORY FILTER ============ */
.category-filter {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-bottom: 48px; justify-content: center;
}
.category-btn {
  padding: 10px 24px; font-size: 0.8rem;
  letter-spacing: 1px; text-transform: uppercase;
  border: 1px solid var(--light-gray);
  border-radius: 2px; color: var(--gray);
  font-weight: 500; transition: all 0.3s;
}
.category-btn:hover, .category-btn.active {
  background: var(--black); color: var(--cream);
  border-color: var(--black);
}

/* ============ ARTICLE DETAIL ============ */
.article-hero-img {
  width: 100%; max-height: 500px;
  object-fit: cover;
}
.article-detail { padding: 60px 0 100px; }
.article-detail-cat {
  font-size: 0.7rem; letter-spacing: 3px;
  text-transform: uppercase; color: var(--burgundy);
  font-weight: 600; margin-bottom: 16px;
}
.article-detail-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400; line-height: 1.25;
  margin-bottom: 24px;
}
.article-detail-meta {
  display: flex; gap: 24px; color: var(--gray);
  font-size: 0.85rem; margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.article-detail-body {
  font-size: 1.1rem; line-height: 1.9;
  color: var(--anthracite);
}
.article-detail-body p { margin-bottom: 24px; }
.article-detail-body blockquote {
  font-family: var(--font-serif);
  font-size: 1.4rem; font-style: italic;
  border-left: 3px solid var(--burgundy);
  padding: 8px 0 8px 28px;
  margin: 40px 0; color: var(--black);
  line-height: 1.5;
}

/* Author bio */
.author-bio {
  display: flex; gap: 20px; align-items: center;
  padding: 32px; margin-top: 60px;
  background: var(--cream); border-radius: 4px;
}
.author-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--charcoal); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); color: var(--cream);
  font-size: 1.3rem;
}
.author-name {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 500;
  margin-bottom: 4px;
}
.author-desc { font-size: 0.85rem; color: var(--gray); }

/* Share buttons */
.share-bar {
  display: flex; gap: 12px; align-items: center;
  margin-top: 40px;
}
.share-bar span {
  font-size: 0.75rem; letter-spacing: 2px;
  text-transform: uppercase; color: var(--gray); font-weight: 600;
}
.share-btn {
  width: 40px; height: 40px;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  transition: all 0.3s;
}
.share-btn:hover {
  background: var(--black); border-color: var(--black);
}
.share-btn:hover svg { fill: var(--cream); }
.share-btn svg { width: 16px; height: 16px; fill: var(--gray); }

/* ============ FORM ============ */
.form-section { padding: 80px 0 120px; }
.form-group { margin-bottom: 28px; }
.form-label {
  display: block; font-size: 0.75rem;
  letter-spacing: 2px; text-transform: uppercase;
  font-weight: 600; margin-bottom: 10px;
  color: var(--charcoal);
}
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 16px 20px;
  font-family: var(--font-sans);
  font-size: 1rem; border: 1px solid rgba(0,0,0,0.12);
  border-radius: 2px; background: var(--white);
  transition: border-color 0.3s;
  color: var(--black);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none; border-color: var(--burgundy);
}
.form-textarea { min-height: 240px; resize: vertical; line-height: 1.7; }
.form-select { cursor: pointer; }
.form-checkbox {
  display: flex; align-items: flex-start; gap: 12px;
}
.form-checkbox input[type="checkbox"] {
  margin-top: 4px; accent-color: var(--burgundy);
  width: 18px; height: 18px;
}
.form-checkbox label {
  font-size: 0.9rem; color: var(--gray); line-height: 1.5;
}
.form-success {
  display: none; text-align: center; padding: 60px 24px;
}
.form-success.show { display: block; }
.form-success-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--burgundy); margin: 0 auto 24px;
  display: flex; align-items: center; justify-content: center;
}
.form-success-icon svg { width: 28px; height: 28px; fill: white; }
.form-success-title {
  font-family: var(--font-serif);
  font-size: 1.8rem; margin-bottom: 12px;
}
.form-success-desc { color: var(--gray); font-size: 1rem; }

/* ============ ABOUT PAGE ============ */
.manifesto-section { padding: 100px 0; }
.manifesto-block {
  max-width: 700px; margin: 0 auto;
}
.manifesto-text {
  font-family: var(--font-serif);
  font-size: 1.6rem; line-height: 1.7;
  font-weight: 400; color: var(--anthracite);
  margin-bottom: 40px;
}
.manifesto-text em { color: var(--burgundy); }
.manifesto-body {
  font-size: 1.05rem; line-height: 1.9;
  color: var(--gray);
}
.manifesto-body p { margin-bottom: 24px; }

/* ============ COMMUNITY PAGE ============ */
.community-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}
.community-card {
  padding: 40px 32px; border: 1px solid rgba(0,0,0,0.08);
  border-radius: 4px; transition: all 0.4s var(--transition);
  text-align: center;
}
.community-card:hover {
  border-color: var(--burgundy);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.06);
}
.community-card-icon {
  width: 56px; height: 56px; margin: 0 auto 20px;
  border-radius: 50%; background: var(--cream);
  display: flex; align-items: center; justify-content: center;
}
.community-card-icon svg { width: 24px; height: 24px; fill: var(--burgundy); }
.community-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem; margin-bottom: 12px;
}
.community-card-desc {
  font-size: 0.9rem; color: var(--gray); line-height: 1.6;
}

/* ============ MOBILE NAV ============ */
.mobile-menu {
  position: fixed; inset: 0; z-index: 999;
  background: var(--off-white);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 32px; opacity: 0; visibility: hidden;
  transition: all 0.4s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-family: var(--font-serif);
  font-size: 2rem; font-weight: 400;
  color: var(--black); transition: color 0.3s;
}
.mobile-menu a:hover { color: var(--burgundy); }
.mobile-close {
  position: absolute; top: 24px; right: 24px;
  font-size: 2rem; color: var(--black);
  cursor: pointer;
}

/* ============ SCROLL ANIMATIONS ============ */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: all 0.8s var(--transition);
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 968px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-home { grid-template-columns: 1fr; gap: 40px; }
  .featured-talk { grid-template-columns: 1fr; gap: 32px; }
  .articles-grid { grid-template-columns: 1fr; }
  .videos-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .article-detail-meta { flex-direction: column; gap: 8px; }
  .author-bio { flex-direction: column; text-align: center; }
  .hero-content { padding: 100px 20px; }
}