/* =============================================
   Tre Belle Tours LLC — Main Stylesheet
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
  --color-bg: #0a1628;
  --color-bg-alt: #0f1d33;
  --color-surface: #1a2940;
  --color-surface-hover: #223354;
  --color-border: #2a3a55;
  --color-text: #ffffff;
  --color-text-secondary: #c4ccd6;
  --color-text-muted: #8895a7;
  --color-primary: #00d4aa;
  --color-primary-hover: #00e6b8;
  --color-primary-dark: #009b7d;
  --color-accent: #ff6b35;
  --color-accent-hover: #ff7f52;
  --color-danger: #e74c3c;
  --color-success: #2ecc71;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  --container-max: 1140px;
  --header-height: 72px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --transition: 0.25s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

strong {
  color: var(--color-primary);
  font-weight: 600;
}

address {
  font-style: normal;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }
h4 { font-size: 1rem; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

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

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

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

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

.btn--lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

.btn--full {
  width: 100%;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.15rem;
}

.logo:hover {
  color: var(--color-primary);
}

.logo__icon {
  flex-shrink: 0;
}

.nav__list {
  display: flex;
  gap: 32px;
}

.nav__link {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* --- Hamburger --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.hamburger__line {
  display: block;
  width: 26px;
  height: 2.5px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.hamburger.active .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --- Sections --- */
.section {
  padding: 100px 0;
}

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

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding: 4px 14px;
  border: 1px solid var(--color-primary);
  border-radius: 20px;
}

.section__title {
  margin-bottom: 16px;
}

.section__desc {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__geom {
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 80px 0;
}

.hero__badge {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
}

.hero__stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
}

.hero__stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* --- About --- */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.about__text p {
  margin-bottom: 20px;
  color: var(--color-text-secondary);
  font-size: 1.02rem;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.about__card-icon {
  margin-bottom: 20px;
}

.about__card h3 {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-size: 1.1rem;
}

.about__card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* --- Services --- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color var(--transition), transform var(--transition);
}

.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.service-card__icon {
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 12px;
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* --- Differentiators --- */
.diff__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.diff__stat-card {
  text-align: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  transition: border-color var(--transition);
}

.diff__stat-card:hover {
  border-color: var(--color-primary);
}

.diff__number {
  display: block;
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 8px;
}

.diff__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.diff__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.diff__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}

.diff__feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-text-secondary);
  font-size: 0.93rem;
}

.diff__feature svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- CTA --- */
.cta__inner {
  text-align: center;
  padding: 40px 0;
}

.cta__title {
  margin-bottom: 16px;
}

.cta__text {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Contact --- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact__form {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form__input {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
  outline: none;
}

.form__input::placeholder {
  color: var(--color-text-muted);
}

.form__input:focus {
  border-color: var(--color-primary);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__error {
  display: block;
  font-size: 0.8rem;
  color: var(--color-danger);
  margin-top: 4px;
  min-height: 18px;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__info-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.contact__info-card svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__info-card h4 {
  margin-bottom: 4px;
}

.contact__info-card a,
.contact__info-card address {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.contact__info-card a:hover {
  color: var(--color-primary);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer__desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer__links h4,
.footer__contact h4 {
  color: var(--color-text);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.footer__links ul li {
  margin-bottom: 10px;
}

.footer__links ul li a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer__links ul li a:hover {
  color: var(--color-primary);
}

.footer__contact p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.footer__contact a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer__contact a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
}

.footer__bottom p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* --- Legal Pages --- */
.page-legal {
  padding-top: var(--header-height);
}

.legal-hero {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
  text-align: center;
}

.legal-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 8px;
}

.legal-hero__date {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.legal-content {
  padding: 80px 0;
}

.legal-content__inner {
  max-width: 820px;
}

.legal-clause {
  margin-bottom: 44px;
}

.legal-clause:last-child {
  margin-bottom: 0;
}

.legal-clause h2 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.legal-clause p {
  color: var(--color-text-secondary);
  margin-bottom: 14px;
  font-size: 0.98rem;
  line-height: 1.75;
}

.legal-clause p:last-child {
  margin-bottom: 0;
}

.legal-clause__contact {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 16px 0;
}

.legal-clause__contact p {
  margin-bottom: 6px;
  font-size: 0.93rem;
}

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(1) { transition-delay: 0ms; }
.fade-up:nth-child(2) { transition-delay: 100ms; }
.fade-up:nth-child(3) { transition-delay: 200ms; }
.fade-up:nth-child(4) { transition-delay: 300ms; }
.fade-up:nth-child(5) { transition-delay: 400ms; }
.fade-up:nth-child(6) { transition-delay: 500ms; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about__grid {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }

  .diff__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-surface);
    border-left: 1px solid var(--color-border);
    padding: 100px 32px 32px;
    transition: right var(--transition);
    z-index: 1000;
  }

  .nav.active {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    gap: 20px;
  }

  .nav__link {
    font-size: 1.05rem;
  }

  .hero__stats {
    gap: 32px;
  }

  .diff__grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
  }

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

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

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

@media (max-width: 480px) {
  .section {
    padding: 64px 0;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
    text-align: center;
  }

  .hero__stats {
    gap: 24px;
  }

  .contact__form {
    padding: 24px;
  }
}