/*
 * Custom CSS for the Tuningservice Vest website.
 *
 * The design follows a dark, premium aesthetic with golden accent colours.
 * All sections are responsive and adjust gracefully on mobile devices.
 */

:root {
  --bg-color: #0b0b0b;
  --card-bg: #121212;
  --accent-color: #d2a94e;
  --accent-hover: #b68d37;
  --text-color: #f5f5f5;
  --muted-color: #cccccc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ===== Header & Navigation ===== */
header {
  position: relative;
  overflow: hidden;
}

nav.navbar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 22px 42px;
  z-index: 2;
}

.logo {
  flex-shrink: 0;
}

.logo a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.logo img {
  width: clamp(320px, 30vw, 420px);
  height: auto;
  filter: drop-shadow(0 1px 1px rgba(255, 255, 255, 0.3)) drop-shadow(0 8px 18px rgba(0, 0, 0, 0.72)) drop-shadow(0 0 10px rgba(210, 169, 78, 0.18));
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px 24px;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  position: relative;
  padding: 5px 0;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--accent-color);
}

.nav-links li a.active::after,
.nav-links li a:hover::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  height: 90vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  padding: 0 10%;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
}

.hero-content {
  position: relative;
  max-width: 650px;
}

.hero-content h1 {
  font-size: 2.8rem;
  margin: 0;
  line-height: 1.2;
  letter-spacing: 1px;
}

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

.hero-content p {
  font-size: 1.1rem;
  margin: 20px 0 30px;
  color: var(--muted-color);
}

.btn-primary {
  display: inline-block;
  padding: 15px 32px;
  background-color: var(--accent-color);
  color: #000;
  text-decoration: none;
  font-weight: 700;
  border-radius: 4px;
  transition: background-color 0.3s;
}

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

/* ===== USP Section ===== */
.usps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  padding: 40px 10%;
  background-color: var(--bg-color);
  border-bottom: 1px solid #222;
}

.usp-item {
  flex: 1 1 200px;
  text-align: center;
}

.usp-icon {
  font-size: 2.2rem;
  color: var(--accent-color);
  margin-bottom: 10px;
}

.usp-item h3 {
  margin: 5px 0 8px;
  color: var(--accent-color);
}

.usp-item p {
  font-size: 0.9rem;
  color: var(--muted-color);
}

/* ===== Services Section ===== */
.services {
  padding: 60px 10%;
  background-color: #111;
}

.services h2 {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 40px;
  color: var(--accent-color);
  position: relative;
}

.services h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.services-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
}

.service-item {
  background-color: var(--card-bg);
  border-radius: 6px;
  padding: 30px 20px;
  text-align: center;
  transition: transform 0.3s;
  height: 100%;
}

.service-item:hover {
  transform: translateY(-6px);
}

.service-icon {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: 15px;
}

.service-item h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
  color: var(--accent-color);
}

.service-item p {
  font-size: 0.9rem;
  color: var(--muted-color);
  margin: 0;
}

/* ===== About Section ===== */
.about {
  padding: 60px 10%;
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
  background-color: var(--bg-color);
}

.about-content {
  flex: 1 1 400px;
}

.about-content h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: var(--accent-color);
}

.about-content p {
  margin-bottom: 10px;
  color: var(--muted-color);
}

.about-content ul {
  list-style: none;
  padding-left: 0;
  margin-top: 10px;
}

.about-content li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 6px;
  font-size: 0.95rem;
  color: var(--muted-color);
}

.about-content li::before {
  content: '\2714';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-color);
}

.about-image {
  flex: 1 1 400px;
}

.about-image img {
  width: 100%;
  border-radius: 6px;
  object-fit: cover;
}

/* ===== Gallery Section ===== */
.gallery {
  padding: 60px 10%;
  background-color: #111;
}

.gallery h2 {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 40px;
  color: var(--accent-color);
  position: relative;
}

.gallery h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item .caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.6);
  color: var(--text-color);
  padding: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

/* ===== Effect Calculator Section ===== */
.calculator {
  padding: 70px 10%;
  background: linear-gradient(180deg, #0b0b0b 0%, #111 100%);
}

.calculator-content {
  max-width: 1120px;
  margin: 0 auto;
}

.calculator-copy {
  max-width: 820px;
  margin: 0 auto 32px;
  text-align: center;
}

.calculator-copy h2 {
  font-size: 2.2rem;
  margin: 0 0 18px;
  color: var(--accent-color);
  position: relative;
}

.calculator-copy h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.calculator-copy p {
  color: var(--muted-color);
  margin: 28px 0 0;
}

.calculator-note {
  font-size: 0.95rem;
  color: #e2c782;
}

.calculator-frame {
  width: 100%;
  overflow: hidden;
  padding: 18px;
  background: rgba(18, 18, 18, 0.92);
  border: 1px solid rgba(210, 169, 78, 0.36);
  border-radius: 6px;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.32);
}

#tuningconfigurator-iframe {
  display: block;
  width: 100%;
  min-height: 760px;
  border: 0;
}

.calculator-cta {
  margin-top: 30px;
  text-align: center;
}

.calculator-cta p {
  margin: 0 0 18px;
  color: var(--text-color);
  font-weight: 600;
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 28px;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 700;
  border: 2px solid var(--accent-color);
  border-radius: 4px;
  transition: background-color 0.3s, color 0.3s;
}

.btn-outline:hover {
  background-color: var(--accent-color);
  color: #000;
}

/* ===== Contact Section ===== */
.contact {
  background-color: var(--accent-color);
  color: #000;
  padding: 60px 10%;
  text-align: center;
}

.contact h2 {
  font-size: 2.2rem;
  margin-bottom: 18px;
}

.contact-intro {
  max-width: 760px;
  margin: 0 auto 24px;
  color: #111;
  font-weight: 500;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 30px;
}

.btn-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 4px;
  background: #000;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.btn-contact.secondary {
  background: transparent;
  color: #000;
  border: 2px solid #000;
}

.contact-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
}

.contact-item {
  flex: 1 1 200px;
}

.contact-item h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: #000;
}

.contact-item p {
  margin: 0;
  font-size: 0.95rem;
  color: #222;
}.contact-form {
  max-width: 640px;
  margin: 40px auto 0;
  text-align: left;
}
.contact-form h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: #000;
  text-align: center;
}
.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: #000;
}
.contact-form input[type="text"],
.contact-form input[type="tel"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #000;
  border-radius: 4px;
  background: #fff;
  color: #000;
  font-size: 0.95rem;
  font-family: inherit;
  box-sizing: border-box;
}
.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}
.contact-form button {
  align-self: flex-start;
  cursor: pointer;
}.contact-form-status {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 8px;
  background: #000;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
}
}
.contact-form-status.error {
  background: #7a1420;
}

/* ===== Footer ===== */
.footer {
  background-color: #000;
  color: #888;
  text-align: center;
  padding: 20px 10%;
  font-size: 0.85rem;
}

.footer span.brand {
  color: var(--accent-color);
  font-weight: 600;
}

.footer-credit {
    margin-top: 10px;
    font-size: 0.78rem;
    color: #666;
}

.footer-credit a {
    color: #888;
    text-decoration: none;
}

.footer-credit a:hover,
.footer-credit a:focus-visible {
    color: var(--accent-color);
    text-decoration: underline;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 992px) {
  .hero {
    height: 70vh;
  }
  .hero-content h1 {
    font-size: 2.4rem;
  }
  .services-list {
    gap: 20px;
  }
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  #tuningconfigurator-iframe {
    min-height: 820px;
  }
}

@media (max-width: 768px) {
  nav.navbar {
    position: relative;
    background: #000;
    padding: 16px 5%;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
  }
  .logo {
    width: 100%;
    text-align: center;
  }
  .logo img {
    margin: 0 auto;
    width: min(320px, 82vw);
  }
  .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px 10px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .nav-links li {
    text-align: center;
  }
  .nav-links li a {
    display: inline-block;
    font-size: 0.82rem;
  }
  .hero {
    min-height: 76vh;
    height: auto;
    padding: 60px 6%;
  }
  .hero-content h1 {
    font-size: 2rem;
  }
  .hero-content p {
    font-size: 0.95rem;
  }
  .usps {
    gap: 20px;
  }
  .about {
    flex-direction: column;
    padding: 50px 5%;
  }
  .about-content,
  .about-image {
    flex: 1 1 auto;
  }
  .contact-items {
    flex-direction: column;
    gap: 30px;
  }
  .calculator {
    padding: 56px 5%;
  }
  .calculator-copy h2 {
    font-size: 1.9rem;
  }
  .calculator-frame {
    padding: 10px;
  }
  #tuningconfigurator-iframe {
    min-height: 980px;
  }
}

@media (max-width: 640px) {
  .logo img {
    width: min(300px, 84vw);
  }
  .nav-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
  }
  .nav-links li a {
    font-size: 0.8rem;
  }
  .hero {
    padding: 50px 6%;
  }
  .hero-content h1 {
    font-size: 1.65rem;
  }
  .btn-contact,
  .btn-primary,
  .btn-outline {
    width: 100%;
    max-width: 320px;
  }
  #tuningconfigurator-iframe {
    min-height: 1080px;
  }
}