:root {
  --color-primary: #c62828;
  --color-primary-dark: #a61f1f;
  --color-secondary: #111111;
  --color-dark: #121212;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-white: #ffffff;
  --color-bg: #f8f9fb;
  --color-border: #e5e7eb;
  --color-footer: #111827;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container-width: 1200px;
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 32px, var(--container-width));
  margin-inline: auto;
}

.site-main {
  min-height: 60vh;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.15;
  font-weight: 800;
  color: var(--color-secondary);
  margin: 0 0 14px;
}

.section-subtitle {
  max-width: 680px;
  color: var(--color-text-light);
  margin: 0 auto 24px;
  font-size: 1rem;
}

.text-center {
  text-align: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  letter-spacing: 0.2px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

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

.btn-dark:hover {
  opacity: 0.92;
}

.btn:hover {
  transform: translateY(-2px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--color-secondary);
  white-space: nowrap;
}

.site-logo__mark,
.footer-brand__mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}

.site-logo__text {
  font-size: 1.05rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 1;
  justify-content: center;
}

.site-nav a {
  font-weight: 500;
  color: var(--color-secondary);
  position: relative;
  transition: var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
}

.site-nav a.active::after,
.site-nav a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 999px;
}

.nav-cta {
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  background: #f1f5f9;
  border-radius: 12px;
  padding: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-secondary);
  margin: 6px 0;
  border-radius: 999px;
}

.site-footer {
  background: var(--color-footer);
  color: rgba(255, 255, 255, 0.88);
  padding: 70px 0 24px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-col h4 {
  margin: 0 0 18px;
  color: var(--color-white);
  font-size: 1.05rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand h3 {
  margin: 0 0 4px;
  color: var(--color-white);
}

.footer-brand p,
.footer-text,
.footer-links,
.footer-contact,
.footer-bottom p {
  margin: 0;
}

.footer-links,
.footer-contact {
  list-style: none;
  padding: 0;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.82);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 36px;
  padding-top: 20px;
  text-align: center;
}

.page-hero {
  padding: 80px 0 50px;
  background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
  color: var(--color-white);
}

.page-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.page-hero p {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.flash-wrap {
  margin-top: 20px;
}

.flash-message {
  padding: 16px 18px;
  border-radius: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.flash-success {
  background: #ecfdf3;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.flash-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.form-error {
  color: #b91c1c;
  font-size: 0.92rem;
  margin-top: 6px;
}

.input-error {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.08);
}

.contact-form {
  display: grid;
  gap: 20px;
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: var(--color-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 14px 16px;
  background: var(--color-white);
  color: var(--color-text);
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(198, 40, 40, 0.08);
}

.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: all 0.7s ease;
}

.revealed {
  opacity: 1;
  transform: translateY(0);
}

.service-card,
.partner-card,
.gallery-card,
.testimonial-card,
.about-card,
.about-box {
  transition: all 0.3s ease;
}

.service-card:hover,
.partner-card:hover,
.gallery-card:hover,
.testimonial-card:hover,
.about-card:hover,
.about-box:hover {
  transform: translateY(-8px);
}