/*
Theme Name: Antigravity Portfolio
Theme URI: https://hseyintopcu.com
Author: Hüseyin Topçu
Description: Minimalist, Antigravity felsefesine sahip kişisel portfolyo teması. Koyu, ızgara tabanlı tasarım.
Version: 1.1
Text Domain: antigravity-portfolio
*/

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

/* ==============================
   CSS VARIABLES - Dark Aesthetics
   ============================== */
:root {
  --color-bg: #111111;
  --color-surface: #161616;
  --color-border: #2A2A2A;
  --color-border-hover: #444444;
  --color-primary: #FFFFFF;
  --color-muted: #888888;
  --color-accent: #FFFFFF;
  
  --font-body: 'Inter', system-ui, sans-serif;
  --max-width: 1200px;
  --radius: 4px;
  --transition: 0.3s ease;
}

/* ==============================
   RESET & BASE
   ============================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--color-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-muted); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
ul { list-style: none; }

/* ==============================
   TYPOGRAPHY
   ============================== */
h1,h2,h3,h4 { font-weight: 500; color: var(--color-primary); line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1rem, 2vw, 1.25rem); }
p { color: var(--color-muted); font-size: 1rem; font-weight: 300; }

.text-darken { color: #555555; }
.text-highlight { color: #FFFFFF; font-weight: 600; }

/* ==============================
   LAYOUT
   ============================== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 40px; }
section { margin-bottom: 0; }

/* ==============================
   BUTTONS (Ghost Minimal)
   ============================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-family: var(--font-body); font-size: 0.8125rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition);
  text-decoration: none; border: 1px solid var(--color-border);
  background: var(--color-surface); color: var(--color-primary);
  letter-spacing: 0.05em; text-transform: uppercase;
}
.btn:hover { background: #222; border-color: var(--color-border-hover); }

/* ==============================
   ANTIGRAVITY / FADE EFFECTS
   ============================== */
.ag-float {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.ag-float.ag-visible { opacity: 1; transform: translateY(0); }

/* ==============================
   HEADER (Top Bar)
   ============================== */
.site-header {
  padding: 40px 0;
  border-bottom: 1px solid transparent;
}
.header-inner {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8125rem; font-weight: 400; color: var(--color-muted);
}
.header-logo {
  font-size: 1.125rem; font-weight: 700; color: var(--color-primary); letter-spacing: -0.02em;
}
.header-logo:hover { color: var(--color-primary); opacity: 0.8; }
.header-right {
  display: flex; align-items: center; gap: 32px;
}
.header-email { display: flex; align-items: center; gap: 8px; }
.header-email a { color: var(--color-muted); border-bottom: 1px solid transparent; }
.header-email a:hover { color: var(--color-primary); border-bottom-color: var(--color-border-hover); }
.header-socials { display: flex; gap: 16px; align-items: center; }

.lang-switcher {
  display: flex; gap: 12px; list-style: none; font-size: 0.8125rem; font-weight: 500;
  border-left: 1px solid var(--color-border); padding-left: 16px;
}
.lang-switcher li { text-transform: uppercase; }
.lang-switcher a { color: var(--color-muted); transition: color var(--transition); }
.lang-switcher a:hover { color: var(--color-primary); }
.lang-switcher .current-lang a { color: var(--color-primary); }

/* ==============================
   HERO
   ============================== */
.hero-section {
  padding: 100px 24px 140px;
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
}
.hero-avatar {
  width: 150px; height: 150px; border-radius: 50%;
  overflow: hidden; margin: 0 auto 24px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; }
.hero-eyebrow {
  font-size: 1.125rem; font-weight: 500; color: var(--color-muted);
  margin-bottom: 32px; display: inline-flex; align-items: center; gap: 8px;
}
.hero-section h1 {
  max-width: 800px; margin: 0 auto 40px;
  color: var(--color-muted); /* Main text is muted, highlights are white */
}
.hero-section h1 span { color: var(--color-primary); }

/* ==============================
   CLIENT/TECH LOGOS
   ============================== */
.client-logos {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: rgba(17, 17, 17, 0.4);
  padding: 40px 0; /* Changed from 24px so it bleeds full width edge to edge */
  overflow: hidden; /* Hide the scrolling elements outside */
}

/* Marquee Wrapper */
.marquee-wrapper {
  display: flex;
  overflow: hidden;
  user-select: none;
  white-space: nowrap;
}

.marquee-track {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 80px; /* Space between items */
  padding-right: 80px; /* To prevent snapping when it wraps */
  animation: scroll-marquee 25s linear infinite;
}
.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes scroll-marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.brand-item {
  display: inline-flex;
  cursor: pointer;
}

.brand-item span, .brand-item img {
  opacity: 0.4;
  filter: grayscale(100%) contrast(200%);
  transition: opacity var(--transition), filter var(--transition);
  font-size: 1.2rem;
  font-weight: 600;
}
.brand-item:hover span, .brand-item:hover img {
  opacity: 1;
  filter: grayscale(0) contrast(100%);
}

/* ==============================
   AG MODAL (Brand Details)
   ============================== */
.ag-modal {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  visibility: hidden;
  opacity: 0;
  transition: visibility 0.3s, opacity 0.3s;
}
.ag-modal.is-active {
  visibility: visible;
  opacity: 1;
}

.ag-modal-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(5px);
  cursor: pointer;
}

.ag-modal-content {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  width: 90%;
  max-width: 500px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  z-index: 10000;
  transform: translateY(20px) scale(0.95);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.ag-modal.is-active .ag-modal-content {
  transform: translateY(0) scale(1);
}

.ag-modal-close {
  position: absolute;
  top: 15px; right: 15px;
  background: none; border: none;
  color: var(--color-muted);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition);
}
.ag-modal-close:hover {
  color: var(--color-primary);
}

.ag-modal-header h3 {
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--color-primary);
  padding-bottom: 15px;
  border-bottom: 1px solid var(--color-border);
}

.ag-modal-body p {
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* ==============================
   SERVICES GRID
   ============================== */
.services-section {
  padding: 140px 24px;
  border-bottom: 1px solid var(--color-border);
}
.services-section h2 {
  text-align: center; max-width: 600px; margin: 0 auto 80px;
  color: var(--color-muted);
}
.services-section h2 span { color: var(--color-primary); }

.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  max-width: var(--max-width); margin: 0 auto;
}
.service-card {
  background: var(--color-bg);
  padding: 48px 40px;
  position: relative;
  transition: background var(--transition);
}
.service-card:hover { background: var(--color-surface); }
.service-icon {
  margin-bottom: 32px; font-size: 1.5rem; color: var(--color-primary);
  display: inline-block;
}
.service-card h3 { margin-bottom: 16px; font-size: 1.125rem; }
.service-card p { font-size: 0.875rem; line-height: 1.7; }

/* ==============================
   TESTIMONIALS
   ============================== */
.testimonials-section {
  padding: 140px 24px;
  border-bottom: 1px solid var(--color-border);
}
.testimonials-header { text-align: center; margin-bottom: 60px; }
.testimonials-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.testi-card {
  border: 1px solid var(--color-border); background: var(--color-surface);
  padding: 40px 32px; border-radius: var(--radius);
}
.testi-text { font-size: 0.9375rem; margin-bottom: 32px; font-style: italic; }
.testi-author { border-top: 1px solid var(--color-border); padding-top: 24px; }
.testi-author h4 { font-size: 0.9375rem; margin-bottom: 4px; }
.testi-author small { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted); }

/* ==============================
   CONTACT / CTA
   ============================== */
.cta-section {
  padding: 140px 24px 60px;
  text-align: center;
}
.cta-section h2 { margin-bottom: 40px; }
.cta-section h2 span { color: var(--color-muted); }

/* ==============================
   FOOTER (Nav inside)
   ============================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 60px 24px 40px;
  background: var(--color-bg);
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: var(--max-width); margin: 0 auto;
}
.footer-nav { display: flex; gap: 32px; }
.footer-nav a { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted); }
.footer-nav a:hover { color: var(--color-primary); }
.footer-copy { font-size: 0.8125rem; color: #555; }

/* ==============================
   FORMS & INPUTS
   ============================== */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.form-group { margin-bottom: 24px; text-align: left; }
.form-group label { display: block; margin-bottom: 8px; font-size: 0.875rem; color: var(--color-muted); }
input, select, textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-muted);
}
textarea { min-height: 140px; resize: vertical; }
.form-submit { width: 100%; margin-top: 16px; justify-content: center; }
.form-note { font-size: 0.8125rem; color: var(--color-muted); margin-top: 16px; text-align: center; }
.msg-success { background: #1a3a2e; color: #4ade80; padding: 16px; border-radius: var(--radius); margin-bottom: 24px; border: 1px solid #235241; text-align: center; }
.msg-error { background: #3a1a1e; color: #f87171; padding: 16px; border-radius: var(--radius); margin-bottom: 24px; border: 1px solid #52232a; text-align: center; }

/* ==============================
   SUBPAGES (Contact, About, etc.)
   ============================== */
.page-hero {
  padding: 120px 24px 60px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.page-hero .section-tag {
  display: inline-block; margin-bottom: 16px; font-size: 0.8125rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted);
}
.page-hero .lead { font-size: 1.125rem; margin-top: 24px; line-height: 1.8; }
.contact-section { padding-bottom: 140px; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  max-width: 1000px; margin: 0 auto;
}
.channel-list { margin-top: 40px; display: flex; flex-direction: column; gap: 24px; }
.channel-item {
  display: flex; align-items: flex-start; gap: 16px;
  background: var(--color-surface); padding: 24px;
  border: 1px solid var(--color-border); border-radius: var(--radius);
  color: inherit;
}
a.channel-item:hover { border-color: var(--color-muted); }
.ch-icon { font-size: 1.5rem; }
.ch-label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--color-muted); text-transform: uppercase; margin-bottom: 4px; }
.ch-value { font-size: 1rem; color: var(--color-primary); }
.contact-info h2 { margin-bottom: 16px; }

.service-detail { padding-bottom: 140px; }
.service-detail-inner { max-width: 800px; margin: 0 auto; color: var(--color-muted); line-height: 1.8; }
.service-detail-inner h2 { color: var(--color-primary); margin: 60px 0 32px; }
.feature-grid { display: grid; gap: 24px; margin-bottom: 40px; }
.feature-item {
  display: flex; align-items: flex-start; gap: 20px;
  background: var(--color-surface); padding: 32px;
  border: 1px solid var(--color-border); border-radius: var(--radius);
}
.feature-icon { font-size: 1.5rem; }
.feature-item h3 { margin-bottom: 8px; font-size: 1.125rem; color: var(--color-primary); }
.stat-box {
  background: rgba(42,42,42,0.3); padding: 32px; border-left: 2px solid var(--color-primary);
  margin-bottom: 40px; border-radius: 0 var(--radius) var(--radius) 0;
}
.service-cta-box {
  background: var(--color-surface); padding: 48px; border: 1px solid var(--color-border);
  text-align: center; border-radius: var(--radius); margin-top: 80px;
}
.service-cta-box h3 { font-size: 1.5rem; margin-bottom: 16px; color: var(--color-primary); }
.service-cta-box p { margin-bottom: 32px; }

/* Hakkımda (About) */
.about-content { padding-bottom: 60px; }
.about-inner { max-width: 800px; margin: 0 auto; line-height: 1.8; color: var(--color-muted); }
.about-inner p { margin-bottom: 24px; font-size: 1.0625rem; }
.about-inner strong { color: var(--color-primary); font-weight: 500; }
.section-center { text-align: center; max-width: 600px; margin: 0 auto 60px; }
.section-center h2 { margin-bottom: 16px; font-size: 2rem; color: var(--color-primary); }
.how-i-work { padding: 60px 24px 140px; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; max-width: var(--max-width); margin: 0 auto; }
.step-item { background: var(--color-surface); padding: 32px; border: 1px solid var(--color-border); border-radius: var(--radius); }
.step-num { display: block; font-size: 1.5rem; font-weight: 700; color: var(--color-border-hover); margin-bottom: 16px; }
.step-item h3 { margin-bottom: 12px; color: var(--color-primary); font-size: 1.125rem; }
.cta-banner { background: var(--color-surface); text-align: center; padding: 100px 24px; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.cta-banner h2 { margin-bottom: 24px; font-size: 2.2rem; color: var(--color-primary); }
.cta-banner p { max-width: 600px; margin: 0 auto 40px; font-size: 1.125rem; }

/* Hizmetler Hub */
.services-hub { padding-bottom: 140px; }
.hub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: var(--max-width); margin: 0 auto; }
.hub-card { display: flex; flex-direction: column; background: var(--color-surface); border: 1px solid var(--color-border); padding: 48px 32px; text-align: center; border-radius: var(--radius); transition: transform var(--transition); }
.hub-card:hover { transform: translateY(-4px); border-color: var(--color-border-hover); }
.hub-card-icon { font-size: 2.5rem; display: block; margin-bottom: 24px; }
.hub-card h3 { margin-bottom: 16px; font-size: 1.25rem; color: var(--color-primary); }
.hub-card p { margin-bottom: 32px; flex-grow: 1; }

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 992px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-inner { flex-direction: column; gap: 16px; }
  .header-right { flex-direction: column; gap: 12px; }
  .lang-switcher { border-left: none; padding-left: 0; justify-content: center; }
  .services-grid { grid-template-columns: 1fr; gap: 1px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
  .footer-nav { flex-direction: column; gap: 16px; }
  .client-logos .container { justify-content: center; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .feature-item { flex-direction: column; gap: 12px; }
  .steps-grid { grid-template-columns: 1fr; }
  .hub-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 60px 24px; }
}