/* ==========================================================================
   Mercury Transportations OÜ — modern site styles
   ========================================================================== */

:root {
  /* Color tokens */
  --color-bg: #f6f7f9;
  --color-surface: #ffffff;
  --color-navy: #10151f;
  --color-navy-soft: #1a2130;
  --color-text: #171b22;
  --color-text-muted: #59636f;
  --color-text-inverse: #f5f7fa;
  --color-text-inverse-muted: #b7c0cc;
  --color-primary: #f5860f;
  --color-primary-dark: #d16f06;
  --color-primary-contrast: #17110a;
  --color-border: #e3e6ea;
  --color-border-dark: #2a3244;

  /* Spacing scale (8px rhythm) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* Type scale */
  --font-heading: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(16, 21, 31, 0.08);
  --shadow-md: 0 8px 24px rgba(16, 21, 31, 0.10);
  --shadow-lg: 0 20px 48px rgba(16, 21, 31, 0.18);

  --container-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 var(--space-2); }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-6) 0;
}

.section--tight {
  padding: var(--space-5) 0;
}

.section--dark {
  background: var(--color-navy);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-text-inverse);
}

.section--dark p {
  color: var(--color-text-inverse-muted);
}

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

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.section-head {
  max-width: 640px;
  margin: 0 0 var(--space-4);
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-text-inverse);
}

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

.btn-outline-dark {
  background: transparent;
  border-color: var(--color-border-dark);
  color: var(--color-text);
  border-color: #cfd4da;
}

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

.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  border-bottom: 1px solid var(--color-border-dark);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.75rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--color-text-inverse);
  min-height: 44px;
}

.brand img {
  height: 42px;
  width: auto;
}

.brand__name {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 1rem;
  line-height: 1.2;
}

.brand__name span {
  display: block;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.72rem;
  color: var(--color-text-inverse-muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__list {
  list-style: none;
  display: flex;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.nav__list a {
  text-decoration: none;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  color: var(--color-text-inverse-muted);
  padding: 0.5rem 0.1rem;
  border-bottom: 2px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}

.nav__list a:hover,
.nav__list a[aria-current="page"] {
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-actions__phone {
  display: none;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--color-text-inverse);
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-dark);
  background: transparent;
  color: var(--color-text-inverse);
  cursor: pointer;
}

.nav-toggle svg { width: 22px; height: 22px; }

@media (min-width: 860px) {
  .header-actions__phone { display: inline-flex; }
  .nav-toggle { display: none; }
  .nav {
    position: static;
    display: flex;
    background: none;
    padding: 0;
    box-shadow: none;
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 859.98px) {
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-navy-soft);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--space-3) var(--space-3);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 220ms ease;
  }

  .nav.is-open { max-height: 480px; }

  .nav__list {
    flex-direction: column;
    gap: 0;
  }

  .nav__list a {
    display: block;
    padding: 0.85rem 0.2rem;
    border-bottom: 1px solid var(--color-border-dark);
  }

  .header-actions .btn { padding: 0.7rem 1.1rem; font-size: 0.85rem; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  color: var(--color-text-inverse);
  background: linear-gradient(180deg, rgba(16, 21, 31, 0.78), rgba(16, 21, 31, 0.92)), var(--hero-image, none);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero__content {
  position: relative;
  padding: var(--space-7) 0 var(--space-6);
  max-width: 680px;
}

.hero__tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 134, 15, 0.14);
  border: 1px solid rgba(245, 134, 15, 0.4);
  color: var(--color-primary);
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.hero h1 {
  color: var(--color-text-inverse);
}

.hero p {
  font-size: 1.1rem;
  color: var(--color-text-inverse-muted);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.hero__badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text-inverse-muted);
  font-size: 0.92rem;
}

.hero__badge svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* Page banner (non-home pages) */

.page-banner {
  background: var(--color-navy);
  color: var(--color-text-inverse);
  padding: var(--space-5) 0 var(--space-4);
}

.page-banner .eyebrow { color: var(--color-primary); }

.page-banner p {
  color: var(--color-text-inverse-muted);
  max-width: 60ch;
}

/* ---------- Cards / grids ---------- */

.grid {
  display: grid;
  gap: var(--space-3);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.service-card {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.service-card__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(245, 134, 15, 0.12);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card__icon svg { width: 24px; height: 24px; }

.service-card h3 { margin-bottom: 0.25rem; text-transform: none; letter-spacing: 0; }

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

.cta-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-4);
}

.cta-inline p { margin: 0; color: var(--color-text-muted); }

/* ---------- Machinery list ---------- */

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0;
  margin: var(--space-2) 0 0;
}

.tag-list li {
  background: rgba(245, 134, 15, 0.1);
  color: var(--color-primary-dark);
  border: 1px solid rgba(245, 134, 15, 0.3);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.88rem;
}

/* ---------- Gallery ---------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-2);
}

.gallery-grid a {
  display: block;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease;
}

.gallery-grid a:hover img { transform: scale(1.06); }

.gallery-grid a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(9, 11, 16, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-3);
}

.lightbox.is-open { display: flex; }

.lightbox img {
  max-width: min(92vw, 1100px);
  max-height: 88vh;
  width: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox__close svg { width: 20px; height: 20px; }

/* ---------- Pricing ---------- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}

.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.price-card--highlight {
  background: var(--color-navy);
  color: var(--color-text-inverse);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.price-card--highlight .price-card__label { color: var(--color-text-inverse-muted); }

.price-card__label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.price-card__value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--color-primary);
  margin: var(--space-1) 0;
}

.price-card__note {
  font-size: 0.9rem;
  color: inherit;
  opacity: 0.85;
}

.price-note-block {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-4);
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

@media (min-width: 860px) {
  .contact-grid { grid-template-columns: 0.9fr 1.1fr; }
}

.contact-info-card {
  background: var(--color-navy);
  color: var(--color-text-inverse);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.contact-info-card__row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info-card__row:last-child { border-bottom: none; }

.contact-info-card__row svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-info-card__row a { text-decoration: none; color: var(--color-text-inverse); }
.contact-info-card__row a:hover { color: var(--color-primary); }

.contact-info-card__label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-inverse-muted);
  margin-bottom: 0.15rem;
}

/* Form */

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.form-row {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-3);
}

@media (min-width: 560px) {
  .form-row--2 { grid-template-columns: 1fr 1fr; }
}

.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.field label .req { color: var(--color-primary-dark); }

.field input,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-family: inherit;
  font-size: 1rem;
  background: var(--color-bg);
  color: var(--color-text);
}

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

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(245, 134, 15, 0.22);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-navy);
  color: var(--color-text-inverse-muted);
  padding: var(--space-5) 0 var(--space-3);
}

.footer-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

.footer-brand { display: flex; align-items: center; gap: 0.65rem; margin-bottom: var(--space-2); }
.footer-brand img { height: 36px; }
.footer-brand span { font-family: var(--font-heading); color: var(--color-text-inverse); text-transform: uppercase; }

.footer-col h4 {
  color: var(--color-text-inverse);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
.footer-col a { text-decoration: none; color: var(--color-text-inverse-muted); }
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  font-size: 0.85rem;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  padding: 0.75rem 1rem;
  z-index: 1200;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}