:root {
  --color-bg: #050b10;
  --color-bg-elevated: #0f1723;
  --color-bg-soft: #141c27;
  --color-border-subtle: rgba(148, 163, 184, 0.2);
  --color-primary: #16c3a2;
  --color-primary-soft: rgba(22, 195, 162, 0.12);
  --color-primary-strong: #11a488;
  --color-text: #e5f0ff;
  --color-text-muted: #9ca3af;
  --color-heading: #f9fafb;
  --shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.65);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --container-width: 1120px;
  --header-height: 72px;
  --transition-fast: 150ms ease-out;
  --transition-med: 220ms ease-out;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Inter", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-main);
  color: var(--color-text);
  background: radial-gradient(circle at top left, #0b1724 0%, #050b10 45%, #020509 100%);
}

/* Layout */

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

main {
  padding-top: var(--header-height);
}

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--header-height);
  z-index: 30;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 11, 16, 0.96), rgba(5, 11, 16, 0.82), transparent);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-heading);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 0, #22d3ee, #16c3a2 50%, #0369a1 100%);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.7), 0 14px 30px rgba(15, 118, 110, 0.6);
  font-size: 18px;
}

.brand-name {
  font-size: 0.96rem;
  text-transform: uppercase;
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  position: relative;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.main-nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 -0.35rem;
  height: 2px;
  border-radius: 999px;
  transform-origin: center;
  transform: scaleX(0);
  background: linear-gradient(90deg, #0ea5e9, #16c3a2);
  transition: transform var(--transition-med);
}

.main-nav a:hover {
  color: var(--color-heading);
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

/* Buttons */

.btn {
  border: none;
  cursor: pointer;
  font: inherit;
  border-radius: var(--radius-pill);
  padding: 0.8rem 1.5rem;
  font-size: 0.92rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  white-space: nowrap;
  transition:
    background-color var(--transition-med),
    color var(--transition-med),
    box-shadow var(--transition-med),
    transform var(--transition-fast);
}

.btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #22c55e);
  color: #02161a;
  box-shadow: 0 16px 40px rgba(5, 150, 105, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 50px rgba(5, 150, 105, 0.7);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.9);
  color: var(--color-text);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.btn-secondary:hover {
  background: rgba(31, 41, 55, 0.9);
  border-color: rgba(148, 163, 184, 0.7);
}

.btn-outline {
  background: transparent;
  color: var(--color-heading);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: rgba(15, 118, 110, 0.14);
}

.btn-full {
  width: 100%;
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.8);
  padding: 0.35rem;
  flex-direction: column;
  justify-content: center;
  gap: 0.27rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 999px;
  background: var(--color-heading);
  transition: transform var(--transition-med), opacity var(--transition-fast);
}

/* Hero */

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  color: var(--color-text);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      110deg,
      rgba(5, 11, 16, 0.94) 0%,
      rgba(5, 11, 16, 0.92) 52%,
      rgba(5, 11, 16, 0.6) 68%,
      rgba(3, 7, 18, 0.1) 100%
    ),
    url("../img/hero.jpg");
  background-size: cover;
  background-position: center;
  filter: saturate(1.1) contrast(1.05);
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(45, 212, 191, 0.22) 0, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(56, 189, 248, 0.2) 0, transparent 50%);
  mix-blend-mode: soft-light;
  opacity: 0.85;
  z-index: -1;
}

.hero-inner {
  padding: 4.5rem 1.5rem 4rem;
}

.hero-content {
  max-width: 620px;
  padding: 2.2rem 2.4rem;
  border-radius: 28px;
  background: radial-gradient(circle at 0 0, rgba(45, 212, 191, 0.16) 0, transparent 55%),
    rgba(15, 23, 42, 0.82);
  border: 1px solid rgba(148, 163, 184, 0.28);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(26px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.18rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(45, 212, 191, 0.7);
  color: #a5f3fc;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw + 1.4rem, 3.2rem);
  line-height: 1.1;
  margin: 0 0 1.05rem;
  color: var(--color-heading);
}

.hero-text {
  margin: 0 0 1.7rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.8rem;
}

.hero-info {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-info-item {
  flex: 1 1 190px;
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.hero-info-item .label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #9ca3af;
  margin-bottom: 0.25rem;
}

.hero-info-item .value {
  font-size: 0.9rem;
  color: var(--color-text);
}

/* Sections */

.section {
  padding: 4rem 0 4.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 2.2rem;
}

.section-header-left {
  text-align: left;
}

.section-header h2 {
  margin: 0 0 0.65rem;
  font-size: 1.7rem;
  color: var(--color-heading);
}

.section-header p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

.section-services {
  background: radial-gradient(circle at top, rgba(31, 41, 55, 0.6) 0, transparent 60%),
    linear-gradient(to bottom, #020617, #020617);
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.service-list li {
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.32);
  color: var(--color-text);
  font-size: 0.96rem;
}

/* Process */

.section-process {
  background: radial-gradient(circle at 20% 0, rgba(22, 195, 162, 0.12) 0, transparent 58%),
    linear-gradient(to bottom, #020617, #020617);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.process-step {
  position: relative;
  padding: 1.5rem 1.4rem 1.3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.8);
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-soft);
  color: #a5f3fc;
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  border: 1px solid rgba(45, 212, 191, 0.7);
}

.process-step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.03rem;
  color: var(--color-heading);
}

.process-step p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Quote */

.section-quote {
  background: radial-gradient(circle at 100% 0, rgba(59, 130, 246, 0.25) 0, transparent 55%),
    linear-gradient(to bottom, #020617, #020617);
}

.quote-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
  gap: 2rem;
  align-items: flex-start;
}

.quote-form-wrapper {
  padding: 1.85rem 1.8rem 1.8rem;
  border-radius: 24px;
  background: radial-gradient(circle at 0 0, rgba(45, 212, 191, 0.16) 0, transparent 55%),
    rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: var(--shadow-soft);
}

.quote-form {
  margin-top: 1.6rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.form-field {
  margin-bottom: 1.05rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.96);
  color: var(--color-text);
  padding: 0.7rem 0.9rem;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.form-field textarea {
  resize: vertical;
  min-height: 130px;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.form-field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #9ca3af 50%),
    linear-gradient(135deg, #9ca3af 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(45, 212, 191, 0.7);
  background: #020617;
}

.form-note {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Contact card */

.contact-card {
  padding: 1.9rem 1.6rem;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.9);
}

.contact-card h3 {
  margin: 0 0 1rem;
  font-size: 1.15rem;
  color: var(--color-heading);
}

.contact-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 0.4rem;
  color: #9ca3af;
}

.contact-phone {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-person {
  margin: 0 0 1.2rem;
  color: var(--color-text-muted);
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Footer */

.site-footer {
  padding: 2.2rem 0 2.6rem;
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  background: #020617;
}

.footer-inner {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.footer-inner p {
  margin: 0.2rem 0;
}

/* Responsive */

@media (max-width: 900px) {
  .quote-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-card {
    order: -1;
  }

  .hero-content {
    padding: 1.8rem 1.7rem;
  }
}

@media (max-width: 768px) {
  .header-inner {
    gap: 0.9rem;
  }

  .main-nav {
    position: absolute;
    inset: var(--header-height) 0 auto;
    padding: 0.9rem 1.5rem 1.25rem;
    background: rgba(2, 6, 23, 0.97);
    backdrop-filter: blur(26px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition:
      transform var(--transition-med),
      opacity var(--transition-med);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  .hero-inner {
    padding-top: 3.4rem;
    padding-bottom: 3.4rem;
  }

  .hero-content {
    padding: 1.7rem 1.4rem 1.6rem;
    border-radius: 20px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .section {
    padding: 3.3rem 0 3.7rem;
  }

  .process-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.9rem;
  }

  .brand-name {
    font-size: 0.88rem;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }
}