/* =========================================================
   Ares Mühendislik ve Yazılım — Kurumsal Web Sitesi
   Renk paleti: lacivert / mavi-mor gradyan / soft beyaz
   ========================================================= */

:root {
  /* Marka renkleri (logo gradyanı baz alındı) */
  --navy-900: #0a1024;
  --navy-800: #0b1437;
  --navy-700: #122150;
  --blue: #2d6bff;
  --blue-600: #2256e6;
  --purple: #7c3aed;
  --purple-600: #6d28d9;

  /* Nötr */
  --bg: #f7f9fc;
  --bg-soft: #eef2fa;
  --white: #ffffff;
  --text: #15203c;
  --text-soft: #51607c;
  --border: #e4e9f2;

  --gradient: linear-gradient(120deg, var(--blue) 0%, var(--purple) 100%);
  --gradient-soft: linear-gradient(120deg, rgba(45,107,255,.12), rgba(124,58,237,.12));

  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(16, 30, 70, .05);
  --shadow: 0 12px 40px rgba(16, 30, 70, .08);
  --shadow-lg: 0 24px 60px rgba(16, 30, 70, .14);

  --maxw: 1140px;
  --header-h: 72px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

/* ---------- Reset / temel ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.02em; }
p { margin: 0 0 1rem; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-weight: 600;
  font-size: 1rem;
  padding: .85rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-sm { padding: .6rem 1.2rem; font-size: .92rem; }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 10px 24px rgba(45, 107, 255, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(45, 107, 255, .38); }
.btn-ghost {
  background: transparent;
  color: var(--navy-800);
  border-color: var(--border);
}
.btn-ghost:hover { background: #fff; border-color: var(--blue); color: var(--blue-600); transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(247, 249, 252, .82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner { display: flex; align-items: center; height: 100%; gap: 1.5rem; }

.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand-icon { width: 40px; height: 40px; }
.brand-text { font-size: 1.18rem; font-weight: 700; color: var(--navy-800); letter-spacing: -.01em; }
.brand-text strong { font-weight: 800; }

.main-nav { display: flex; gap: .35rem; margin-left: auto; }
.main-nav a {
  position: relative;
  padding: .5rem .85rem;
  font-weight: 500;
  font-size: .98rem;
  color: var(--text-soft);
  border-radius: 8px;
  transition: color .18s ease, background .18s ease;
}
.main-nav a:hover { color: var(--navy-800); background: var(--bg-soft); }
.main-nav a.active { color: var(--blue-600); }

.header-cta { margin-left: .25rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; margin: 0 auto;
  background: var(--navy-800); border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4rem, 10vw, 7.5rem) 0 clamp(3.5rem, 8vw, 6rem);
  background:
    radial-gradient(60% 80% at 80% -10%, rgba(124,58,237,.10), transparent 60%),
    radial-gradient(70% 80% at 10% 0%, rgba(45,107,255,.10), transparent 55%),
    var(--bg);
}
.hero-glow {
  position: absolute;
  top: -180px; right: -120px;
  width: 520px; height: 520px;
  background: var(--gradient);
  filter: blur(120px);
  opacity: .16;
  border-radius: 50%;
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 820px; }
.hero-eyebrow {
  display: inline-block;
  font-weight: 600; font-size: .9rem;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--blue-600);
  background: var(--gradient-soft);
  padding: .35rem .9rem; border-radius: 999px;
  margin-bottom: 1.3rem;
}
.hero-title { font-size: clamp(2.1rem, 5.2vw, 3.6rem); font-weight: 800; color: var(--navy-900); }
.hero-desc { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-soft); max-width: 680px; margin-top: 1.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }

/* ---------- Bölüm temelleri ---------- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-head { max-width: 680px; margin: 0 auto 3rem; text-align: center; }
.kicker {
  display: inline-block;
  font-weight: 600; font-size: .82rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--purple-600);
  margin-bottom: .7rem;
}
.section-title { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; color: var(--navy-900); }
.section-lead { color: var(--text-soft); font-size: 1.08rem; }

/* ---------- Değer önerisi ---------- */
.intro { background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.intro-text p { color: var(--text-soft); font-size: 1.08rem; }
.intro-stats { display: grid; gap: 1rem; }
.intro-stats li {
  display: flex; align-items: flex-start; gap: 1rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem 1.3rem;
  transition: transform .2s ease, box-shadow .2s ease;
}
.intro-stats li:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.stat-ico { font-size: 1.5rem; line-height: 1; }
.intro-stats strong { display: block; color: var(--navy-800); font-size: 1.05rem; }
.intro-stats span span, .intro-stats div span { color: var(--text-soft); font-size: .95rem; }

/* ---------- Kartlar (genel) ---------- */
.cards { display: grid; gap: 1.5rem; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #d4ddee; }
.card-title { font-size: 1.3rem; font-weight: 700; color: var(--navy-900); }
.card-desc { color: var(--text-soft); margin: 0; }

.badge {
  display: inline-block;
  font-size: .76rem; font-weight: 600; letter-spacing: .05em;
  text-transform: uppercase;
  padding: .3rem .7rem; border-radius: 999px;
  margin-bottom: 1rem;
  background: var(--gradient); color: #fff;
}
.badge-soon { background: var(--bg-soft); color: var(--text-soft); }
.badge-dev {
  display: inline-flex; align-items: center; gap: .45rem;
  background: rgba(124, 58, 237, .1);
  color: var(--purple-600);
}
.badge-dev .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--purple); box-shadow: 0 0 0 0 rgba(124, 58, 237, .5);
  animation: dev-pulse 1.8s ease-out infinite;
}
@keyframes dev-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(124, 58, 237, .5); }
  70%  { box-shadow: 0 0 0 7px rgba(124, 58, 237, 0); }
  100% { box-shadow: 0 0 0 0 rgba(124, 58, 237, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .badge-dev .dot { animation: none; }
}

/* ---------- Ürünler ---------- */
.products { background: var(--bg); }
.product-card.featured {
  border-color: transparent;
  background:
    linear-gradient(var(--white), var(--white)) padding-box,
    var(--gradient) border-box;
  border: 1.5px solid transparent;
  box-shadow: var(--shadow);
}
.feature-list { margin-top: 1.2rem; display: grid; gap: .7rem; }
.feature-list li {
  position: relative; padding-left: 1.7rem;
  color: var(--text); font-size: .98rem;
}
.feature-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  width: 1.2rem; height: 1.2rem;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 700;
  color: #fff; background: var(--gradient);
  border-radius: 50%;
}
.product-card.soon { background: var(--bg-soft); border-style: dashed; box-shadow: none; }
.product-card.soon .card-title { color: var(--text-soft); }

/* Geliştirilmekte olan ürün: aktif kartlardan daha sade, "planlanan" hissi */
.product-card.dev { background: var(--white); }
.product-card.dev .feature-list li { color: var(--text-soft); }
.product-card.dev .feature-list li::before {
  content: ""; top: .35rem;
  width: .65rem; height: .65rem; border-radius: 50%;
  background: transparent;
  border: 2px solid var(--purple);
}

/* ---------- Çözümler ---------- */
.solutions { background: var(--white); border-top: 1px solid var(--border); }
.solution-card { display: flex; flex-direction: column; }
.sol-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; margin-bottom: 1.1rem;
  font-size: 1.5rem; border-radius: 14px;
  background: var(--gradient-soft);
}
.solution-card.highlight {
  background: var(--navy-800);
  border-color: var(--navy-700);
  color: #e7ecf7;
}
.solution-card.highlight .card-title { color: #fff; }
.solution-card.highlight .card-desc { color: #aab6d4; }
.link-arrow {
  margin-top: auto; padding-top: 1rem;
  font-weight: 600; color: #fff;
  display: inline-flex; gap: .4rem; align-items: center;
}
.link-arrow span { transition: transform .2s ease; }
.link-arrow:hover span { transform: translateX(4px); }

/* ---------- Hakkımızda ---------- */
.about { background: var(--bg); }
.about-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.about-text { font-size: 1.15rem; color: var(--text-soft); margin-bottom: 2.5rem; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; text-align: left; }
.value {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.4rem;
  border-top: 3px solid transparent;
  border-image: var(--gradient) 1;
  border-image-slice: 1;
}
.value { border-top: 3px solid #2d6bff; }
.value strong { display: block; color: var(--navy-900); font-size: 1.1rem; margin-bottom: .35rem; }
.value span { color: var(--text-soft); font-size: .96rem; }

/* ---------- İletişim ---------- */
.contact { background: var(--white); border-top: 1px solid var(--border); }
.contact-card {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center;
  background: var(--navy-800);
  background-image: radial-gradient(60% 100% at 100% 0%, rgba(124,58,237,.35), transparent 55%),
                    radial-gradient(60% 100% at 0% 100%, rgba(45,107,255,.30), transparent 55%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  box-shadow: var(--shadow-lg);
}
.contact-text .kicker { color: #c4b5fd; }
.contact-text .section-title { color: #fff; }
.contact-text p { color: #c5cfe6; margin: 0; }
.contact-details { display: grid; gap: 1rem; }
.contact-row {
  display: flex; align-items: center; gap: 1rem;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius); padding: 1rem 1.2rem;
  transition: background .2s ease, transform .2s ease;
}
a.contact-row:hover { background: rgba(255,255,255,.13); transform: translateY(-2px); }
.contact-row-muted { opacity: .7; }
.contact-ico { font-size: 1.4rem; }
.contact-row small { display: block; color: #aab6d4; font-size: .82rem; }
.contact-row strong { font-size: 1.05rem; color: #fff; }
/* Uzun e-posta/adres metinleri dar ekranda taşmasın, satırlar daralabilsin */
.contact-row { min-width: 0; }
.contact-row > span { min-width: 0; }
.contact-row small, .contact-row strong { overflow-wrap: anywhere; word-break: break-word; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #aab6d4; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem;
  padding: 3.5rem 24px 2.5rem;
}
.brand-footer .brand-text { color: #fff; }
.footer-desc { margin: 1.1rem 0; max-width: 340px; font-size: .96rem; color: #93a0c2; }
.footer-mail { color: #cdd6ee; font-weight: 500; border-bottom: 1px solid rgba(255,255,255,.2); padding-bottom: 2px; }
.footer-mail:hover { color: #fff; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer-col a { display: block; padding: .35rem 0; color: #93a0c2; font-size: .96rem; transition: color .18s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 1.3rem 0; }
.footer-bottom p { margin: 0; font-size: .9rem; color: #6f7da3; text-align: center; }

/* ---------- Reveal animasyonu ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Yasal sayfalar ---------- */
.legal-page { padding: clamp(2.5rem, 6vw, 4.5rem) 0 4rem; }
.legal-page .container { max-width: 820px; }
.legal-back { display: inline-flex; align-items: center; gap: .4rem; color: var(--blue-600); font-weight: 500; margin-bottom: 1.5rem; }
.legal-back:hover { text-decoration: underline; }
.legal-page h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--navy-900); }
.legal-updated { color: var(--text-soft); font-size: .95rem; margin-bottom: 2.5rem; }
.legal-page h2 { font-size: 1.3rem; color: var(--navy-800); margin: 2.2rem 0 .8rem; }
.legal-page p, .legal-page li { color: var(--text-soft); }
.legal-page ul { list-style: disc; padding-left: 1.4rem; margin-bottom: 1rem; }
.legal-page li { margin-bottom: .4rem; }
.legal-note {
  background: var(--gradient-soft); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem 1.4rem; margin: 1.5rem 0;
  color: var(--text);
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .intro-grid, .contact-card { grid-template-columns: 1fr; gap: 2rem; }
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: .5rem 1rem 1.2rem;
    transform: translateY(-12px);
    opacity: 0; visibility: hidden;
    transition: transform .25s ease, opacity .25s ease, visibility .25s;
  }
  .main-nav.open { transform: none; opacity: 1; visibility: visible; }
  .main-nav a { padding: .9rem .5rem; font-size: 1.05rem; border-bottom: 1px solid var(--bg-soft); }
}

@media (max-width: 560px) {
  .cards-3 { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
}

/* =========================================================
   Ares — logo, Yazılım/Mühendislik geçişi, mühendislik bölümü
   ========================================================= */

/* ---------- Header / footer logo ---------- */
.brand-logo { height: 42px; width: auto; display: block; }
.brand-footer img { width: 34px; height: 34px; }

/* ---------- Domain geçişi (segmented control) ---------- */
.domain-switch {
  display: inline-flex;
  gap: .3rem;
  padding: .34rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 1.5rem;
}
.domain-switch-btn {
  font: inherit;
  font-weight: 600;
  font-size: .95rem;
  color: var(--text-soft);
  background: transparent;
  border: none;
  padding: .5rem 1.5rem;
  border-radius: 999px;
  cursor: pointer;
  transition: color .2s ease, background .2s ease, box-shadow .2s ease;
}
.domain-switch-btn:hover { color: var(--navy-800); }
.domain-switch-btn[aria-selected="true"] {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 20px rgba(45, 107, 255, .28);
}

/* ---------- Paneller ----------
   JS yokken iki alan da görünür (erişilebilir);
   JS varken sekme gibi yumuşak geçiş yapılır. */
body.js-tabs .domain-panel { display: none; }
body.js-tabs[data-domain="yazilim"]   .domain-panel[data-domain="yazilim"],
body.js-tabs[data-domain="muhendislik"] .domain-panel[data-domain="muhendislik"] {
  display: block;
  animation: panelFade .45s ease both;
}
@keyframes panelFade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* Nav'daki aktif alan vurgusu */
.main-nav a.nav-domain.active { color: var(--blue-600); }

/* ---------- Mühendislik hero ---------- */
.hero-eng {
  background:
    radial-gradient(60% 80% at 85% -10%, rgba(45,107,255,.12), transparent 60%),
    radial-gradient(70% 80% at 5% 0%, rgba(124,58,237,.08), transparent 55%),
    var(--bg);
}
.hero-pills { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.4rem 0 0; }
.hero-pills li {
  font-size: .9rem; font-weight: 600; color: var(--blue-600);
  background: var(--gradient-soft);
  padding: .4rem .95rem; border-radius: 999px;
}

/* ---------- Mühendislik hizmet ikonları (SVG) ---------- */
.sol-ico svg { width: 26px; height: 26px; color: var(--blue-600); }

/* ---------- Mühendislik CTA kartındaki buton ---------- */
.solution-card.highlight .highlight-cta {
  margin-top: auto;
  align-self: flex-start;
  background: #fff;
  color: var(--navy-800);
  box-shadow: none;
}
.solution-card.highlight .highlight-cta:hover {
  color: var(--blue-600);
  transform: translateY(-2px);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .brand-logo { height: 38px; }
  .domain-switch-btn { padding: .5rem 1.2rem; }
}
@media (max-width: 560px) {
  .contact-card { padding: 1.6rem 1.3rem; }
  .contact-row { padding: .85rem .9rem; gap: .7rem; }
  .contact-row strong { font-size: .9rem; }
  .contact-row small { font-size: .78rem; }
  .contact-ico { font-size: 1.2rem; }
}

/* ---------- Erişilebilirlik ---------- */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  body.js-tabs .domain-panel { animation: none !important; }
}
:focus-visible { outline: 3px solid rgba(45,107,255,.5); outline-offset: 2px; border-radius: 6px; }