/* Base CSS for ziyreksoftware.com - modern, minimalist, responsive */

:root {
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f8fa;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1a202c;
  --color-text-light: #4a5568;
  --color-accent: #22c55e;
  --color-accent-hover: #16a34a;
  --color-accent-rgb: 34, 197, 94;
  --color-danger: #dc2626;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --max-width: 1200px;
}

[data-theme='dark'] {
  --color-bg: #0d1f16;
  --color-bg-alt: #142d21;
  --color-surface: #183c29;
  --color-border: #1e3a25;
  --color-text: #e6f4ea;
  --color-text-light: #a7f3d0;
  --color-accent: #22d36b;
  --color-accent-hover: #16a34a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.7), 0 1px 3px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.55), 0 2px 4px rgba(0,0,0,0.35);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.45), 0 4px 6px rgba(0,0,0,0.25);
}

[data-theme='dark'] header.site-header {
  background: rgba(var(--color-accent-rgb),0.15) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3) !important;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  font-size: 16px !important;
}

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

h1,h2,h3,h4 { font-weight: 600; line-height: 1.2; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover,a:focus { color: var(--color-accent-hover); }

ul { padding-left: 1.1rem; }

code, pre { font-family: var(--font-mono); font-size: 0.95rem; }
pre { background: var(--color-bg-alt); padding: 1rem; border-radius: var(--radius-md); overflow: auto; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem; }

header.site-header {
  position: sticky; top: 0; z-index: 50; 
  background: rgba(var(--color-accent-rgb),0.12) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid var(--color-border) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
  min-height: 72px !important;
}
.nav-toggle { display:none; background:transparent; border:1px solid var(--color-border); width:46px; height:46px; border-radius: var(--radius-sm); align-items:center; justify-content:center; flex-direction:column; gap:5px; cursor:pointer; padding:0; position:relative; user-select:none; -webkit-tap-highlight-color:transparent; }
.nav-toggle .bar { width:22px; height:2px; background: var(--color-text); border-radius:2px; transition: transform 0.25s ease-in-out, opacity 0.25s ease-in-out; pointer-events:none; }
.nav-toggle:is(:hover,:focus) { border-color: var(--color-accent); }
.nav-toggle.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active .bar:nth-child(2) { opacity:0; }
.nav-toggle.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.navbar { display: flex !important; align-items: center !important; justify-content: space-between !important; height: 72px !important; min-height: 72px !important; font-size: 1rem !important; padding: .75rem 0 !important; }
.navbar-center { display: flex; align-items: center; gap: 2rem; flex: 1; justify-content: center; }
.header-controls { display: flex !important; align-items: center !important; gap: .75rem !important; padding: .25rem !important; }
.brand { font-size: 1.15rem !important; font-weight: 600 !important; letter-spacing: 0.5px !important; display:flex !important; align-items:center !important; gap:.5rem !important; padding: .5rem .75rem !important; border-radius: var(--radius-sm) !important; transition: background var(--transition) !important; }
.brand:hover { background: rgba(var(--color-accent-rgb),0.08); }
.brand-text { display:flex; flex-direction:column; line-height:1.2; }
.brand-main { font-size: 1.15rem; font-weight: 600; }
.brand-sub { font-size: .7rem; color: var(--color-text-light); opacity:.8; margin-top:-2px; }
.brand-logo { width:32px; height:32px; background:linear-gradient(135deg,var(--color-accent),var(--color-accent-hover)); border-radius:8px; box-shadow: var(--shadow-sm); display:none !important; }
.brand-logo-svg { height: 64px; width: auto; display: block !important; transition: opacity var(--transition); }
.brand-logo-svg:hover { opacity: 0.8; }
nav ul { list-style:none; display:flex; gap:1rem; margin:0; padding:0; }
nav a { position:relative; padding: .5rem .75rem; border-radius: var(--radius-sm); font-size: 1rem !important; color: var(--color-text-light); }
nav a.active, nav a:hover { color: var(--color-text); }
nav a.active::after, nav a:hover::after { content:""; position:absolute; left:12px; right:12px; bottom:4px; height:2px; background: var(--color-accent); border-radius:2px; }

/* Force consistent nav font size across all screen sizes */
.desktop-nav a, .mobile-nav a { font-size: 1rem !important; }

/* Desktop nav specific */
.desktop-nav a {
  position: relative;
  overflow: hidden;
}

.desktop-nav a::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 4px;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--color-accent) 20%, 
    var(--color-accent) 80%, 
    transparent 100%);
  transform: translateX(-50%) translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
  opacity: 0;
}

.desktop-nav a:hover:not(.active)::before {
  transform: translateX(-50%) translateX(0);
  opacity: 1;
}

.desktop-nav a.active::before {
  transform: translateX(-50%) translateX(0);
  opacity: 1;
  background: var(--color-accent);
  transition: none;
  animation: none;
}

.desktop-nav a.active::after, .desktop-nav a:hover::after { 
  display: none; 
}

/* Mobile nav - hidden by default */
.mobile-nav { display: none; }

.theme-toggle { background: none; border:1px solid var(--color-border); color: var(--color-text-light); padding:.55rem .85rem; border-radius: var(--radius-sm); cursor:pointer; display:flex; align-items:center; gap:.35rem; font-size:.8rem; letter-spacing:.5px; text-transform:uppercase; transition: var(--transition); }
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-accent); }

.hero { padding: 6rem 0 4rem; text-align: center; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.25rem); background: linear-gradient(90deg,var(--color-accent),var(--color-accent-hover)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p { font-size: 1.15rem; max-width: 760px; margin: 1rem auto 2rem; color: var(--color-text-light); }

.btn { display:inline-flex; align-items:center; gap:.5rem; background: var(--color-accent); color:#fff; border:none; padding:.85rem 1.25rem; border-radius: var(--radius-md); font-weight:500; letter-spacing:.3px; cursor:pointer; box-shadow: var(--shadow-sm); transition: background var(--transition), transform var(--transition); }
.btn:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.btn-outline { background:transparent; color: var(--color-accent); border:1px solid var(--color-accent); }
.btn-outline:hover { background: var(--color-accent); color:#fff; }

.section { padding: 4rem 0 3rem; }
.section-page { padding: 3.2rem 0 3rem; }
.section-header { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:2rem; flex-wrap:wrap; gap:1rem; }
.section-header h2 { font-size:1.9rem; margin:0; }
.muted { color: var(--color-text-light); font-size:.95rem; }

.grid { display:grid; gap:1.75rem; }
.grid.cols-3 { grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); }
.grid.cols-2 { grid-template-columns: repeat(auto-fill,minmax(340px,1fr)); }

.card { background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg); padding:1.25rem 1.25rem 1.35rem; position:relative; display:flex; flex-direction:column; gap:.75rem; box-shadow: var(--shadow-sm); transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.card:hover { border-color: var(--color-accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card h3 { font-size: 1.15rem; margin:.25rem 0 .35rem; }
.card p { margin:0; font-size:.9rem; color: var(--color-text-light); }
.card a.stretched, .article-item a.stretched { position:absolute; inset:0; border-radius:inherit; }
.badge { display:inline-block; background: var(--color-bg-alt); padding:.25rem .55rem; font-size:.65rem; letter-spacing:.5px; text-transform:uppercase; border-radius: var(--radius-sm); color: var(--color-text-light); }
.tag-row { display:flex; flex-wrap:wrap; gap:.4rem; margin-top:.25rem; }
.tag { font-size:.65rem; padding:.3rem .5rem; background: rgba(var(--color-accent-rgb),0.12); color: var(--color-accent); border-radius: 999px; letter-spacing:.5px; }

.article-list { display:flex; flex-direction:column; gap:1.25rem; }
.article-item { padding:1.25rem 1.25rem 1.35rem; border:1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); position:relative; display:grid; gap:.75rem; box-shadow: var(--shadow-sm); transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.article-item:hover { border-color: var(--color-accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-item h3 { margin:.25rem 0 .35rem; font-size:1.2rem; }
.article-meta { font-size:.7rem; letter-spacing:.5px; text-transform:uppercase; color: var(--color-text-light); display:flex; gap:.75rem; flex-wrap:wrap; }

.prose { max-width: 820px; margin: 0 auto; font-size:1.04rem; }
.prose h1 { font-size:2.4rem; }
.prose h2 { font-size:1.65rem; margin-top:2.5rem; }
.prose h3 { font-size:1.25rem; margin-top:2rem; }
.prose p { text-align:justify; }
.prose blockquote { margin:1.5rem 0; padding:1rem 1.25rem; background: var(--color-bg-alt); border-left:4px solid var(--color-accent); border-radius: var(--radius-sm); }
.prose img { border:1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }

.table { width:100%; border-collapse:collapse; font-size:.9rem; }
.table th, .table td { padding:.6rem .75rem; border:1px solid var(--color-border); text-align:left; }
.table th { background: var(--color-bg-alt); font-weight:600; }

.footer { padding:1.8rem 0 1.5rem; border-top:1px solid var(--color-border); background: var(--color-bg-alt); margin-top:4rem; font-size:0.97rem; }
.footer ul { font-size:0.96em; word-break:break-word; }
.footer ul a { word-break:break-all; }
.footer-inner { display:grid; gap:1.2rem; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); }
.footer small { display:block; margin-top:1.2rem; font-size:.7rem; letter-spacing:.5px; color: var(--color-text-light); }

.inline-icon { width:1rem; height:1rem; display:inline-block; vertical-align:middle; }

.flex { display:flex; }
.flex.center { align-items:center; justify-content:center; }
.flex.gap-sm { gap:.5rem; }
.space-between { justify-content:space-between; }
.wrap { flex-wrap:wrap; }

hr { border:none; border-top:1px solid var(--color-border); margin:3rem 0; }

.search-box { position:relative; }
.search-box input { width:100%; padding:.65rem .9rem .65rem 2.1rem; border:1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font-size:.9rem; }
.search-box input:focus { outline:2px solid rgba(var(--color-accent-rgb),0.25); border-color: var(--color-accent); }
.search-box svg { position:absolute; top:50%; left:.65rem; transform:translateY(-50%); width:1rem; height:1rem; stroke: var(--color-text-light); }

@media (max-width: 780px) {
  .nav-toggle { display:flex; }
  .container { padding: 0 1.25rem; }
  .navbar { gap:1rem; padding: 0 max(.75rem, 4vw); }
  .navbar-center { display: none; }
  .header-controls { gap: 1rem; margin-right: .5rem; }
  .brand { flex: 1; padding-left: .5rem; padding: .25rem .5rem; }
  .brand-logo-svg { height: 56px; }
  .brand-main { font-size: 1rem; }
  .brand-sub { font-size: .6rem; }
  .theme-toggle { padding: .45rem .65rem; font-size: .75rem; }
  .theme-toggle .toggle-text { display:none; }
  .theme-toggle .toggle-icon { font-size: 1.1rem; }
  .mobile-nav { position:absolute; top:72px; right:0; left:0; background: var(--color-surface); border-bottom:1px solid var(--color-border); display:none; flex-direction:column; padding: .75rem 1rem 1.25rem; box-shadow: var(--shadow-md); z-index:100; }
  .mobile-nav.open { display:flex; animation: fadeSlide .25s ease-out forwards; }
  .mobile-nav ul { flex-direction:column; gap:.35rem; }
  .mobile-nav a { 
    padding:.65rem .75rem; 
    font-size: 1rem !important; 
    width:100%; 
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }
  
  /* Modern Active State for Mobile */
  .mobile-nav a.active {
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
  }
  
  .mobile-nav a.active::after {
    content: "";
    position: absolute;
    left: 0.75rem;
    bottom: 4px;
    width: 40px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
  }
  
  /* Hover State for Mobile */
  .mobile-nav a:hover:not(.active) {
    color: var(--color-accent);
    opacity: 0.7;
  }
  .hero { padding:4rem 0 2.5rem; }
  .hero h1 { font-size: clamp(2rem, 8.5vw, 2.6rem); }
  .hero p { font-size:1rem; }
  .section { padding:2.8rem 0 2.2rem; }
  .section-page { padding:2.9rem 0 2.2rem; }
  .grid { gap:1.25rem; }
  .card { padding:1rem 1rem 1.1rem; }
}

@media (max-width: 520px) {
  .container { padding: 0 1.5rem; }
  .navbar { padding: 0 max(.75rem, 5vw); }
  .brand { padding-left: .25rem; padding: .2rem .25rem; }
  .brand-logo-svg { height: 48px; }
  .brand-main { font-size: .95rem; }
  .brand-sub { font-size: .55rem; }
  .theme-toggle { padding: .4rem .55rem; }
  .header-controls { gap: 1rem; margin-right: .75rem; }
  .nav-toggle { width: 38px; height: 38px; }
  .hero { padding:3.2rem 0 2.2rem; }
  .hero p { font-size:.95rem; }
  .section-page { padding:2.6rem 0 2.2rem; }
  .section-header h2 { font-size:1.55rem; }
  .badge { font-size:.6rem; }
  .tag { font-size:.6rem; }
}

@media (max-width: 400px) {
  .container { padding: 0 1.25rem; }
  .navbar { padding: 0 max(.75rem, 6vw); }
  .brand { padding-left: .2rem; padding: .15rem .2rem; }
  .brand-logo-svg { height: 44px; }
  .brand-main { font-size: .9rem; }
  .brand-sub { font-size: .5rem; opacity: .75; }
  .header-controls { gap: .8rem; margin-right: .5rem; }
  .theme-toggle { padding: .35rem .5rem; }
  .nav-toggle { width: 36px; height: 36px; gap: 4px; }
  .section-page { padding:2.3rem 0 2rem; }
}

@media (max-width: 320px) {
  .container { padding: 0 1rem; }
  .navbar { padding: 0 max(1rem, 8vw); }
  .brand { padding-left: .1rem; }
  .brand-logo-svg { height: 40px; }
  .brand-main { font-size: .85rem; }
  .brand-sub { font-size: .45rem; opacity: .7; }
  .header-controls { gap: .6rem; margin-right: .75rem; }
  .theme-toggle { padding: .3rem .4rem; font-size: .7rem; }
  .nav-toggle { width: 34px; height: 34px; gap: 3px; }
  .nav-toggle .bar { width: 18px; }
  .section-page { padding:2rem 0 1.8rem; }
}

@keyframes fadeSlide { from { opacity:0; transform: translateY(-6px); } to { opacity:1; transform:translateY(0); } }

/* Prevent horizontal overflow & improve wrapping */
body, html { overflow-x:hidden; }
h1,h2,h3,h4, p, a { overflow-wrap: anywhere; }
code { white-space: pre-wrap; word-break: break-word; }

@media (max-width: 560px) {
  .navbar { flex-wrap:wrap; height:auto; padding: .5rem 0 1rem; gap:.75rem; }
  nav { width:100%; }
  nav ul { flex-wrap:wrap; }
  .hero h1 { font-size: clamp(2rem, 9vw, 2.8rem); }
}

/* Animations */
@keyframes fadeSlide { 
  from { opacity:0; transform:translateY(-10px); } 
  to { opacity:1; transform:translateY(0); } 
}

@keyframes activeGlow {
  0% { 
    box-shadow: 0 0 5px rgba(34, 197, 94, 0.5);
    filter: brightness(1);
  }
  100% { 
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.8);
    filter: brightness(1.2);
  }
}