/* ============================================
   VoltNova Otomasyon - Ana Stil Dosyası
   Renk Paleti: Mavi & Beyaz
   ============================================ */

:root {
  --blue-deep:    #0A2463;
  --blue-main:    #1565C0;
  --blue-bright:  #1E88E5;
  --blue-light:   #BBDEFB;
  --blue-pale:    #E3F2FD;
  --white:        #FFFFFF;
  --off-white:    #F7FAFF;
  --text-dark:    #0D1B2A;
  --text-mid:     #2C3E60;
  --text-light:   #5A6E8A;
  --border:       #D0E4F5;
  --shadow:       0 4px 24px rgba(21,101,192,0.10);
  --shadow-lg:    0 12px 48px rgba(21,101,192,0.15);
  --radius:       12px;
  --radius-sm:    8px;
  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
}

/* ---- Layout ---- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Typography ---- */
h1, h2, h3 {
  font-family: 'Syne', 'Inter', sans-serif;
  line-height: 1.15;
  color: var(--blue-deep);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; font-weight: 700; }
p  { color: var(--text-mid); }
a  { color: inherit; text-decoration: none; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-main);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--blue-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(21,101,192,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--blue-main);
  border: 2px solid var(--blue-main);
}
.btn-outline:hover {
  background: var(--blue-main);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-white {
  background: var(--white);
  color: var(--blue-main);
  font-weight: 700;
}
.btn-white:hover {
  background: var(--blue-pale);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ---- Section Helpers ---- */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-header p {
  max-width: 520px;
  margin: 0.75rem auto 0;
  font-size: 1.05rem;
}
.section-label {
  display: inline-block;
  background: var(--blue-pale);
  color: var(--blue-main);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 0.9rem;
}

/* =====================
   HEADER
   ===================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-bolt {
  font-size: 1.4rem;
  filter: drop-shadow(0 0 6px rgba(21,101,192,0.4));
}
.logo-text {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--blue-deep);
  letter-spacing: -0.02em;
}
.logo-text em {
  font-style: normal;
  color: var(--blue-bright);
}
.logo-light .logo-text { color: var(--white); }
.logo-light .logo-text em { color: var(--blue-light); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
}
.main-nav a {
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text-mid);
  transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  background: var(--blue-pale);
  color: var(--blue-main);
}
.header-cta { margin-left: 0.75rem; padding: 9px 20px; font-size: 0.9rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--blue-deep);
  border-radius: 2px;
  transition: var(--transition);
}

/* =====================
   HERO
   ===================== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--blue-deep) 0%, #173B7A 50%, var(--blue-main) 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--blue-light);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.hero-title {
  color: var(--white);
  margin-bottom: 1.25rem;
  line-height: 1.1;
}
.hero-title .highlight {
  color: var(--blue-light);
  position: relative;
}
.hero-sub {
  color: rgba(255,255,255,0.78);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}
.hero-actions .btn-outline {
  color: var(--white);
  border-color: rgba(255,255,255,0.45);
}
.hero-actions .btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.7);
  color: var(--white);
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.stat-num {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-lbl {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
}
.hero-visual {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  opacity: 0.07;
}
.circuit-pulse {
  width: 100%;
  height: 100%;
  border: 2px solid white;
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.07; }
  50% { transform: scale(1.08); opacity: 0.12; }
}

/* =====================
   SERVICES
   ===================== */
.services {
  padding: 100px 0;
  background: var(--off-white);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-bright);
}
.service-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}
.service-card h3 {
  margin-bottom: 0.6rem;
  color: var(--blue-deep);
}
.service-card p {
  font-size: 0.93rem;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
.service-link {
  color: var(--blue-main);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}
.service-link:hover { color: var(--blue-deep); letter-spacing: 0.02em; }

/* =====================
   WHY US
   ===================== */
.why-us {
  padding: 100px 0;
}
.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.why-text h2 { margin-bottom: 1rem; }
.why-text p { margin-bottom: 1.5rem; }
.why-list {
  list-style: none;
  margin-bottom: 2rem;
}
.why-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0;
  font-size: 0.97rem;
  color: var(--text-mid);
  border-bottom: 1px solid var(--border);
}
.check {
  color: var(--blue-main);
  font-weight: 700;
  font-size: 1rem;
}
.why-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.voltage-card {
  background: var(--blue-pale);
  border: 1px solid var(--blue-light);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}
.vc-icon { font-size: 1.8rem; }
.vc-text strong {
  display: block;
  font-size: 0.93rem;
  color: var(--blue-deep);
  margin-bottom: 3px;
}
.vc-text span { font-size: 0.82rem; color: var(--text-light); }

/* =====================
   PROJECTS
   ===================== */
.projects {
  padding: 100px 0;
  background: var(--off-white);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
}
.project-card:hover {
  border-color: var(--blue-bright);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}
.project-cat {
  background: var(--blue-pale);
  color: var(--blue-main);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
}
.project-year { font-size: 0.82rem; color: var(--text-light); }
.project-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--blue-deep); }
.project-card p { font-size: 0.9rem; }
.projects-cta { text-align: center; margin-top: 3rem; }
.projects-grid-full {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.project-card-full {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
}
.project-card-full:hover {
  border-color: var(--blue-bright);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.project-card-full h3 { margin-bottom: 0.5rem; }
.project-card-full p { font-size: 0.93rem; }

/* =====================
   CTA SECTION
   ===================== */
.cta-section {
  background: linear-gradient(135deg, var(--blue-main), var(--blue-deep));
  padding: 80px 0;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-section h2 { color: var(--white); margin-bottom: 0.5rem; }
.cta-section p { color: rgba(255,255,255,0.78); }

/* =====================
   PAGE HERO
   ===================== */
.page-hero {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-main));
  padding: 140px 0 80px;
  text-align: center;
}
.page-hero h1 { color: var(--white); margin-bottom: 0.75rem; }
.page-hero p { color: rgba(255,255,255,0.75); font-size: 1.1rem; }
.page-hero .section-label {
  background: rgba(255,255,255,0.15);
  color: var(--blue-light);
}

/* =====================
   SERVICES DETAIL
   ===================== */
.services-detail { padding: 100px 0; }
.service-detail-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 4rem;
  align-items: start;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}
.service-detail-item:last-child { border-bottom: none; }
.service-detail-item.reverse {
  grid-template-columns: 1fr 200px;
}
.service-detail-item.reverse .sdi-icon-wrap { order: 2; }
.service-detail-item.reverse .sdi-content { order: 1; }
.sdi-icon-wrap { display: flex; justify-content: center; }
.sdi-icon {
  font-size: 4rem;
  background: var(--blue-pale);
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid var(--blue-light);
}
.sdi-content h2 { margin-bottom: 0.75rem; }
.sdi-content > p { margin-bottom: 1.5rem; }
.sdi-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}
.sdi-list li {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.92rem;
  color: var(--text-mid);
}

/* =====================
   ABOUT
   ===================== */
.about-story { padding: 100px 0; }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.about-text h2 { margin-bottom: 1.25rem; }
.about-text p { margin-bottom: 1rem; }
.about-numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.an-card {
  background: var(--blue-pale);
  border: 1px solid var(--blue-light);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}
.an-card strong {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 2.2rem;
  color: var(--blue-main);
  font-weight: 800;
}
.an-card span { font-size: 0.85rem; color: var(--text-light); }
.about-values { padding: 0 0 100px; background: var(--off-white); padding-top: 80px; }
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.value-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}
.value-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.value-card h3 { margin-bottom: 0.5rem; }
.value-card p { font-size: 0.9rem; }
.team-section { padding: 100px 0; }
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.team-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}
.team-avatar {
  width: 64px; height: 64px;
  background: var(--blue-main);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 auto 1rem;
}
.team-card h3 { font-size: 1rem; margin-bottom: 4px; }
.team-title {
  display: block;
  font-size: 0.8rem;
  color: var(--blue-main);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.team-card p { font-size: 0.85rem; }

/* =====================
   CONTACT
   ===================== */
.contact-section { padding: 100px 0; }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
}
.contact-info h2 { margin-bottom: 2rem; }
.ci-items { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2rem; }
.ci-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.ci-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.ci-item strong { display: block; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--blue-deep); margin-bottom: 4px; }
.ci-item p { font-size: 0.93rem; }
.ci-item a { color: var(--blue-main); }
.emergency-box {
  background: linear-gradient(135deg, var(--blue-main), var(--blue-deep));
  border-radius: var(--radius);
  padding: 2rem;
}
.emergency-box strong { display: block; color: var(--white); font-size: 1rem; margin-bottom: 0.5rem; }
.emergency-box p { color: rgba(255,255,255,0.78); font-size: 0.9rem; margin-bottom: 1.25rem; }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.88rem; font-weight: 600; color: var(--blue-deep); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 15px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-main);
  box-shadow: 0 0 0 3px rgba(21,101,192,0.12);
}
.form-group textarea { resize: vertical; }
.form-success {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--off-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.form-success span { font-size: 3rem; display: block; margin-bottom: 1rem; }
.form-success h3 { color: var(--blue-deep); margin-bottom: 0.5rem; }
.form-errors {
  background: #FFF3F3;
  border: 1px solid #FFBDBD;
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.form-errors p { color: #C0392B; font-size: 0.88rem; margin-bottom: 4px; }

/* =====================
   FOOTER
   ===================== */
.site-footer {
  background: var(--blue-deep);
  color: rgba(255,255,255,0.75);
  padding-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
}
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}
.footer-socials {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.footer-socials a {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}
.footer-socials a:hover { background: var(--blue-main); color: white; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul li, .footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--blue-light); }
.footer-contact li { display: flex; gap: 0.5rem; align-items: flex-start; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.5rem 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.85rem; color: rgba(255,255,255,0.4); }

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    gap: 0.25rem;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; font-size: 1rem; }
  .header-cta { display: none; }
  .hero { padding: 100px 0 60px; }
  .hero-stats { gap: 1.5rem; }
  .stat-divider { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid, .projects-grid-full { grid-template-columns: 1fr; }
  .why-inner, .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
  .service-detail-item { grid-template-columns: 1fr; gap: 2rem; }
  .service-detail-item.reverse .sdi-icon-wrap { order: -1; }
  .service-detail-item.reverse .sdi-content { order: 1; }
  .sdi-list { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .about-numbers { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  .values-grid, .team-grid, .about-numbers { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}