/* Up Danışmanlık — Modern static site styles */

:root {
  --color-primary: #0f2b4a;
  --color-primary-light: #1a3d66;
  --color-accent: #c9a227;
  --color-accent-hover: #b8921f;
  --color-bg: #fafbfc;
  --color-bg-alt: #f0f3f7;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-white: #ffffff;
  --color-border: #e2e8f0;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-serif: "Playfair Display", Georgia, serif;
  --shadow-sm: 0 1px 3px rgba(15, 43, 74, 0.08);
  --shadow-md: 0 4px 20px rgba(15, 43, 74, 0.12);
  --shadow-lg: 0 12px 40px rgba(15, 43, 74, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --header-height: 80px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.25rem; }

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 3rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn-secondary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-white);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}

.logo:hover {
  opacity: 0.92;
}

.logo-img {
  height: 56px;
  width: auto;
  display: block;
  object-fit: contain;
}

.iskur-logo {
  height: 46px;
  width: auto;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}

.footer-logos {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.footer-logo {
  height: 64px;
  filter: brightness(1.05);
}

.footer-iskur {
  height: 52px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-desktop a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
}

.nav-desktop a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-desktop a:hover::after,
.nav-desktop a.active::after {
  width: 100%;
}

.nav-desktop a.active {
  color: var(--color-primary);
}

.nav-cta {
  margin-left: 0.5rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.nav-mobile.open {
  display: block;
}

.nav-mobile a {
  display: block;
  padding: 0.875rem 0;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 3rem) 0 4rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #234a73 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(201, 162, 39, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
}

.hero-content h1 span {
  color: var(--color-accent);
}

.hero-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  backdrop-filter: blur(8px);
}

.stat-card strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.stat-card span {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
}

/* Sections */
section {
  padding: 5rem 0;
}

section.bg-alt {
  background: var(--color-bg-alt);
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(15, 43, 74, 0.08), rgba(201, 162, 39, 0.12));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.service-card a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

/* About preview */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-image::before {
  content: "UP";
  font-family: var(--font-serif);
  font-size: 6rem;
  font-weight: 700;
  color: rgba(201, 162, 39, 0.25);
}

.about-badge {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.875rem;
}

.about-content h2 {
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.about-list {
  margin: 1.5rem 0 2rem;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.about-list li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* Why us */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-item {
  text-align: center;
  padding: 2rem 1.5rem;
}

.feature-item .feature-num {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.feature-item h3 {
  margin-bottom: 0.5rem;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
}

.feature-item p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  padding: 4rem 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* Page hero (inner pages) */
.page-hero {
  padding: calc(var(--header-height) + 3rem) 0 3rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.5);
}

/* Services detail page */
.service-detail-grid {
  display: grid;
  gap: 2rem;
}

.service-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.service-detail-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.service-detail h2 {
  font-size: 1.375rem;
  margin-bottom: 0.75rem;
}

.service-detail p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.service-detail ul {
  display: grid;
  gap: 0.5rem;
}

.service-detail ul li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.service-detail ul li::before {
  content: "→";
  color: var(--color-accent);
  font-weight: 700;
}

/* About page */
.about-full-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.about-sidebar {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.about-sidebar h3 {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-accent);
}

.info-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

.info-row label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.info-row span,
.info-row a {
  font-size: 0.9375rem;
}

.about-main h2 {
  margin: 2rem 0 1rem;
}

.about-main h2:first-child {
  margin-top: 0;
}

.about-main p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.value-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.value-card h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.9375rem;
  margin: 0;
}

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info-card h3 {
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: rgba(15, 43, 74, 0.06);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.contact-item div strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-form h3 {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 1rem;
}

.map-placeholder {
  margin-top: 3rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-placeholder iframe {
  width: 100%;
  height: 400px;
  border: 0;
  display: block;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logos {
  margin-bottom: 1.25rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition);
}

.footer-social a:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.footer-col h4 {
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul li {
  margin-bottom: 0.625rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.5rem 0;
  font-size: 0.875rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

.footer-credit {
  text-align: center;
  padding: 0 0 1.25rem;
  font-size: 0.8125rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
}

.footer-credit a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-credit a:hover {
  color: var(--color-accent);
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid,
  .about-grid,
  .about-full-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .logo-img {
    height: 44px;
  }

  .iskur-logo {
    height: 38px;
  }

  .header-brand {
    gap: 0.625rem;
  }

  .hero {
    min-height: auto;
    padding-bottom: 3rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .service-detail {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}