/* ============================================
   KERNEK SU ARITMA - COMPONENT STYLES V2
   Premium Design - Navbar, Footer, Cards, Buttons
   ============================================ */

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--navbar-height);
  background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light); z-index: var(--z-navbar);
  transition: all var(--transition-base);
}
.navbar.scrolled { background: rgba(255,255,255,0.98); box-shadow: var(--shadow-md); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.navbar-logo { display: flex; align-items: center; gap: var(--space-sm); }
.navbar-logo img { height: 42px; width: auto; }
.navbar-logo .logo-text { font-family: var(--font-heading); font-weight: var(--fw-bold); font-size: 1.3rem; color: var(--color-primary); }
.navbar-logo .logo-text span { color: var(--color-secondary); }
.nav-menu { display: flex; align-items: center; gap: var(--space-xs); }
.nav-link {
  padding: var(--space-sm) var(--space-md); font-size: var(--fs-small); font-weight: var(--fw-medium);
  color: var(--color-text); border-radius: var(--radius-sm); transition: all var(--transition-fast); position: relative;
}
.nav-link:hover, .nav-link.active { color: var(--color-primary); background: rgba(0,86,179,0.06); }
.nav-link.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; background: var(--gradient-primary); border-radius: 2px;
}
.nav-cta {
  padding: var(--space-sm) var(--space-lg); background: var(--gradient-primary); color: #fff !important;
  border-radius: 50px; font-weight: var(--fw-semibold); box-shadow: var(--shadow-btn);
  transition: all var(--transition-base); margin-left: var(--space-sm);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-btn-hover); background: var(--gradient-primary-hover); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: var(--space-sm); }
.nav-toggle span { display: block; width: 24px; height: 2.5px; background: var(--color-text); border-radius: 2px; transition: all var(--transition-base); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-sm); padding: 14px 32px;
  font-family: var(--font-body); font-size: var(--fs-body); font-weight: var(--fw-semibold);
  border-radius: 50px; transition: all var(--transition-base); cursor: pointer; border: none; line-height: 1;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--gradient-primary); color: #fff; box-shadow: var(--shadow-btn); }
.btn--primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-btn-hover); }
.btn--secondary { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn--secondary:hover { background: var(--color-primary); color: #fff; transform: translateY(-3px); }
.btn--white { background: #fff; color: var(--color-primary); box-shadow: var(--shadow-md); }
.btn--white:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.btn--sm { padding: 10px 22px; font-size: var(--fs-small); }
.btn--lg { padding: 18px 40px; font-size: var(--fs-body-lg); }

/* ---------- PREMIUM HERO SLIDER ---------- */
.hero { position: relative; height: 100vh; min-height: 650px; max-height: 920px; overflow: hidden; background: #0a1628; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), visibility 1.2s;
}
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-slide .slide-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.08); transition: transform 8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  filter: brightness(0.7);
}
.hero-slide.active .slide-bg { transform: scale(1); }
.hero-slide .slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,30,80,0.75) 0%, rgba(0,86,179,0.45) 50%, rgba(0,168,255,0.3) 100%);
}
.hero-slide .slide-overlay::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 40%);
}
.hero-content {
  position: relative; z-index: 2; color: #fff; max-width: var(--container-max);
  margin: 0 auto; padding: 0 var(--container-padding); height: 100%; display: flex;
  flex-direction: column; justify-content: center;
}
.hero-content > * { max-width: 700px; }
.hero-content .hero-badge {
  display: inline-flex; align-items: center; gap: var(--space-sm); width: fit-content;
  padding: 10px 24px; background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px; font-size: var(--fs-small); font-weight: var(--fw-medium);
  margin-bottom: var(--space-xl); color: #fff; letter-spacing: 0.5px;
}
.hero-content h1 {
  font-size: var(--fs-hero); color: #fff; margin-bottom: var(--space-lg);
  text-shadow: 0 4px 30px rgba(0,0,0,0.3); line-height: 1.15; letter-spacing: -0.5px;
}
.hero-content h1 .hero-highlight {
  background: linear-gradient(135deg, #4fc3f7, #00e5ff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1.2rem; color: rgba(255,255,255,0.85); margin-bottom: var(--space-2xl);
  max-width: 560px; line-height: 1.8;
}
.hero-buttons { display: flex; gap: var(--space-md); flex-wrap: wrap; }

/* Hero Progress Bar Navigation */
.hero-nav { position: absolute; bottom: 50px; left: 50%; transform: translateX(-50%); z-index: 10; display: flex; gap: 8px; align-items: center; }
.hero-nav-item {
  position: relative; cursor: pointer; padding: 8px 0; display: flex; align-items: center; gap: var(--space-sm); transition: all var(--transition-base);
}
.hero-nav-item .nav-line {
  width: 60px; height: 3px; background: rgba(255,255,255,0.25); border-radius: 3px; overflow: hidden; transition: all var(--transition-base);
}
.hero-nav-item.active .nav-line { width: 80px; background: rgba(255,255,255,0.3); }
.hero-nav-item .nav-line .progress {
  height: 100%; width: 0; background: #fff; border-radius: 3px; transition: none;
}
.hero-nav-item.active .nav-line .progress { animation: heroProgress 5.5s linear forwards; }
@keyframes heroProgress { from { width: 0; } to { width: 100%; } }
.hero-nav-item .nav-number {
  font-size: 12px; font-weight: var(--fw-semibold); color: rgba(255,255,255,0.4);
  font-family: var(--font-heading); transition: color var(--transition-base);
}
.hero-nav-item.active .nav-number { color: #fff; }

/* Hero Side Counter */
.hero-counter {
  position: absolute; right: 50px; top: 50%; transform: translateY(-50%); z-index: 10;
  writing-mode: vertical-rl; font-family: var(--font-heading); font-size: var(--fs-small);
  color: rgba(255,255,255,0.5); letter-spacing: 3px; text-transform: uppercase;
}
.hero-counter .current { color: #fff; font-weight: var(--fw-bold); font-size: 1.5rem; }

/* Hero scroll indicator */
.hero-scroll {
  position: absolute; bottom: 50px; right: 50px; z-index: 10;
  display: flex; flex-direction: column; align-items: center; gap: var(--space-sm);
  color: rgba(255,255,255,0.6); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 2px;
}
.hero-scroll .scroll-line { width: 1px; height: 40px; background: rgba(255,255,255,0.2); position: relative; overflow: hidden; }
.hero-scroll .scroll-line::after {
  content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: #fff; animation: scrollIndicator 2s ease-in-out infinite;
}
@keyframes scrollIndicator { 0% { top: -100%; } 50% { top: 100%; } 100% { top: 100%; } }

/* ---------- IMAGE SERVICE CARDS (fully clickable) ---------- */
a.service-card-img {
  display: block; position: relative; background: var(--color-surface); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-card); transition: all 0.4s ease;
  border: 1px solid var(--color-border-light); text-decoration: none; color: inherit;
}
a.service-card-img:hover { transform: translateY(-10px); box-shadow: var(--shadow-card-hover); }
a.service-card-img .card-image {
  width: 100%; height: 220px; object-fit: cover;
  transition: transform 0.6s ease;
}
a.service-card-img:hover .card-image { transform: scale(1.06); }
a.service-card-img .img-wrap { overflow: hidden; position: relative; }
a.service-card-img .img-wrap::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60%;
  background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
  opacity: 0; transition: opacity var(--transition-base);
}
a.service-card-img:hover .img-wrap::after { opacity: 1; }
a.service-card-img .card-body {
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
}
a.service-card-img .card-body h3 {
  font-size: var(--fs-h4); margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}
a.service-card-img:hover .card-body h3 { color: var(--color-primary); }
a.service-card-img .card-body p {
  font-size: var(--fs-small); color: var(--color-text-secondary); margin-bottom: var(--space-md);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
a.service-card-img .card-link-text {
  display: inline-flex; align-items: center; gap: 6px; color: var(--color-primary);
  font-weight: var(--fw-semibold); font-size: var(--fs-small); transition: gap var(--transition-fast);
}
a.service-card-img:hover .card-link-text { gap: 10px; }
a.service-card-img .card-link-text svg { width: 16px; height: 16px; }

/* Old ikon service card - keep for fallback */
.service-card {
  background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-2xl);
  text-align: center; border: 1px solid var(--color-border-light); box-shadow: var(--shadow-card);
  transition: all var(--transition-base); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--gradient-primary); transform: scaleX(0); transition: transform var(--transition-base);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); }
.service-card:hover::before { transform: scaleX(1); }
.service-card .icon-wrap {
  width: 72px; height: 72px; margin: 0 auto var(--space-lg);
  background: linear-gradient(135deg, rgba(0,86,179,0.08), rgba(0,168,255,0.08));
  border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center;
  transition: all var(--transition-base);
}
.service-card:hover .icon-wrap { background: var(--gradient-primary); }
.service-card .icon-wrap svg { width: 32px; height: 32px; color: var(--color-primary); transition: color var(--transition-base); }
.service-card:hover .icon-wrap svg { color: #fff; }
.service-card h3 { margin-bottom: var(--space-sm); font-size: var(--fs-h4); }
.service-card p { font-size: var(--fs-small); color: var(--color-text-secondary); margin-bottom: var(--space-lg); }
.service-card .card-link, .card-link {
  display: inline-flex; align-items: center; gap: var(--space-xs); color: var(--color-primary);
  font-weight: var(--fw-semibold); font-size: var(--fs-small); transition: gap var(--transition-fast);
}
.service-card:hover .card-link { gap: var(--space-sm); }
.card-link svg { width: 16px; height: 16px; }

/* ---------- BLOG CARD ---------- */
.card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: all var(--transition-base); border: 1px solid var(--color-border-light); }
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); }
.card-img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: var(--space-xl); }
.card-body h3 { margin-bottom: var(--space-sm); }
.card-body p { margin-bottom: var(--space-lg); font-size: var(--fs-small); }
.blog-card .card-img { height: 200px; transition: transform var(--transition-slow); }
.blog-card:hover .card-img { transform: scale(1.05); }
.blog-card .img-wrap { overflow: hidden; position: relative; }
.blog-card .category-badge {
  position: absolute; top: var(--space-md); left: var(--space-md); padding: 4px 14px;
  background: var(--gradient-primary); color: #fff; border-radius: 50px;
  font-size: var(--fs-xs); font-weight: var(--fw-semibold); z-index: 1;
}
.blog-card .meta { display: flex; gap: var(--space-md); margin-bottom: var(--space-sm); font-size: var(--fs-xs); color: var(--color-text-light); }
.blog-card h3 { font-size: var(--fs-h4); }
.blog-card h3 a:hover { color: var(--color-primary); }

/* ---------- STAT CARD ---------- */
.stat-card {
  text-align: center; padding: var(--space-lg) var(--space-md); background: var(--color-surface);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
}
.stat-card .stat-number {
  font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: var(--fw-extrabold);
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: var(--space-xs); white-space: nowrap;
}
.stat-card .stat-label { font-size: var(--fs-small); color: var(--color-text-secondary); font-weight: var(--fw-medium); }

/* ---------- WHY US / FEATURES ---------- */
.feature-card {
  display: flex; align-items: flex-start; gap: var(--space-lg); padding: var(--space-xl);
  background: var(--color-surface); border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light); transition: all var(--transition-base);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.feature-card .icon-wrap {
  min-width: 56px; height: 56px; background: linear-gradient(135deg, rgba(0,86,179,0.1), rgba(0,168,255,0.1));
  border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
}
.feature-card:hover .icon-wrap { background: var(--gradient-primary); }
.feature-card .icon-wrap svg { width: 26px; height: 26px; color: var(--color-primary); transition: color var(--transition-fast); }
.feature-card:hover .icon-wrap svg { color: #fff; }
.feature-card h4 { margin-bottom: var(--space-xs); }
.feature-card p { font-size: var(--fs-small); margin-bottom: 0; }

/* ---------- FOOTER ---------- */
.footer {
  background: linear-gradient(180deg, #0a1628 0%, #060e1a 100%); color: rgba(255,255,255,0.7);
  padding: var(--space-4xl) 0 0; position: relative;
}
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient-primary); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 0.8fr 1.2fr 1fr; gap: var(--space-2xl); }
.footer-brand .logo-text { font-family: var(--font-heading); font-size: 1.4rem; font-weight: var(--fw-bold); color: #fff; margin-bottom: var(--space-md); }
.footer-brand .logo-text span { color: var(--color-secondary); }
.footer-brand p { font-size: var(--fs-small); line-height: 1.8; color: rgba(255,255,255,0.6); }
.footer h4 { color: #fff; font-size: var(--fs-body); margin-bottom: var(--space-lg); position: relative; padding-bottom: var(--space-sm); }
.footer h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 3px; background: var(--gradient-primary); border-radius: 2px; }
.footer-links li { margin-bottom: var(--space-sm); }
.footer-links a { font-size: var(--fs-small); color: rgba(255,255,255,0.6); transition: all var(--transition-fast); }
.footer-links a:hover { color: var(--color-secondary); padding-left: 5px; }
.footer-contact li { display: flex; align-items: flex-start; gap: var(--space-sm); margin-bottom: var(--space-md); font-size: var(--fs-small); }
.footer-contact svg { width: 18px; height: 18px; color: var(--color-secondary); min-width: 18px; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding: var(--space-lg) 0;
  margin-top: var(--space-3xl); display: flex; align-items: center; justify-content: space-between;
  font-size: var(--fs-xs); color: rgba(255,255,255,0.4);
}

/* ---------- FORMS ---------- */
.form-group { margin-bottom: var(--space-lg); }
.form-label { display: block; font-size: var(--fs-small); font-weight: var(--fw-semibold); color: var(--color-text); margin-bottom: var(--space-sm); }
.form-input, .form-textarea, .form-input select {
  width: 100%; padding: 14px 18px; background: var(--color-bg); border: 2px solid var(--color-border);
  border-radius: var(--radius-md); font-size: var(--fs-body); color: var(--color-text);
  transition: all var(--transition-fast);
}
.form-input:focus, .form-textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(0,86,179,0.1); background: #fff; }
.form-textarea { min-height: 140px; resize: vertical; }

/* ---------- ABOUT SECTION ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3xl); align-items: center; }
.about-img-wrap { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.about-img-wrap img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-xl); }
.about-img-wrap .experience-badge {
  position: absolute; bottom: var(--space-xl); right: var(--space-xl); background: var(--gradient-primary);
  color: #fff; padding: var(--space-lg) var(--space-xl); border-radius: var(--radius-lg);
  text-align: center; box-shadow: var(--shadow-xl);
}
.about-img-wrap .experience-badge .number { font-family: var(--font-heading); font-size: 2.5rem; font-weight: var(--fw-extrabold); line-height: 1; }
.about-img-wrap .experience-badge .label { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 1px; margin-top: var(--space-xs); }

/* ---------- CTA SECTION ---------- */
.cta-section {
  background: var(--gradient-primary); padding: var(--space-4xl) 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='20' cy='20' r='2'/%3E%3C/g%3E%3C/svg%3E");
}
.cta-section h2 { color: #fff; margin-bottom: var(--space-md); position: relative; }
.cta-section p { color: rgba(255,255,255,0.85); font-size: var(--fs-body-lg); max-width: 600px; margin: 0 auto var(--space-2xl); position: relative; }
.cta-buttons { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; position: relative; }

/* ---------- SERVICE DETAIL - STICKY SIDEBAR ---------- */
.service-detail-layout { display: grid; grid-template-columns: 1fr 350px; gap: var(--space-2xl); }
.service-content h2 { margin-top: var(--space-2xl); margin-bottom: var(--space-md); }
.service-content p { line-height: 1.8; }
.service-content ul { margin: var(--space-md) 0 var(--space-lg); }
.service-content ul li { padding: var(--space-sm) 0; padding-left: var(--space-xl); position: relative; color: var(--color-text-secondary); }
.service-content ul li::before { content: '✓'; position: absolute; left: 0; color: var(--color-success); font-weight: var(--fw-bold); }
.service-sidebar { position: sticky; top: calc(var(--navbar-height) + var(--space-xl)); align-self: start; }
.service-sidebar .sidebar-card {
  background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-xl);
  margin-bottom: var(--space-xl); border: 1px solid var(--color-border-light); box-shadow: var(--shadow-sm);
}
.service-sidebar .sidebar-card h4 { margin-bottom: var(--space-lg); }
.sidebar-nav li { margin-bottom: var(--space-xs); }
.sidebar-nav a { display: block; padding: var(--space-sm) var(--space-md); border-radius: var(--radius-sm); font-size: var(--fs-small); color: var(--color-text-secondary); transition: all var(--transition-fast); border-left: 3px solid transparent; }
.sidebar-nav a:hover { background: rgba(0,86,179,0.06); color: var(--color-primary); }
.sidebar-nav a.active { background: rgba(0,86,179,0.1); color: var(--color-primary); font-weight: var(--fw-bold); border-left: 3px solid var(--color-primary); }

/* ---------- BLOG DETAIL ---------- */
.blog-detail-layout { display: grid; grid-template-columns: 1fr 350px; gap: var(--space-2xl); }
.blog-content { font-size: var(--fs-body-lg); line-height: 1.9; }
.blog-content h2 { margin-top: var(--space-2xl); margin-bottom: var(--space-md); }
.blog-content p { margin-bottom: var(--space-lg); }

/* ---------- CONTACT ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
.contact-info-card { display: flex; align-items: flex-start; gap: var(--space-lg); padding: var(--space-xl); background: var(--color-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border-light); margin-bottom: var(--space-md); transition: all var(--transition-base); }
.contact-info-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.contact-info-card .icon-wrap { min-width: 52px; height: 52px; background: var(--gradient-primary); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; }
.contact-info-card .icon-wrap svg { width: 24px; height: 24px; color: #fff; }
.contact-info-card h4 { margin-bottom: var(--space-xs); font-size: var(--fs-body); }
.contact-info-card p { margin-bottom: 0; font-size: var(--fs-small); }
.contact-form-wrap { background: var(--color-surface); border-radius: var(--radius-xl); padding: var(--space-2xl); box-shadow: var(--shadow-lg); border: 1px solid var(--color-border-light); }
.map-wrap { border-radius: var(--radius-lg); overflow: hidden; margin-top: var(--space-2xl); height: 400px; box-shadow: var(--shadow-md); }
.map-wrap iframe { width: 100%; height: 100%; border: 0; }