/* ============================================================
   HEBUMA ENGINEERING SERVICES - Design System (Voltak-Inspired)
   Premium Corporate Industrial Aesthetic
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors - Dark/Red industrial palette like Voltak */
  --color-primary: #0A2647;
  --color-primary-light: #0D3B6F;
  --color-primary-dark: #061A33;
  --color-secondary: #CC2936;
  --color-secondary-dark: #A4181C;
  --color-secondary-light: #E04050;
  --color-accent: #00B4D8;
  --color-dark: #1a1a1a;
  --color-dark-2: #222222;
  --color-dark-3: #2d2d2d;
  --color-charcoal: #333333;
  --color-body: #555555;
  --color-gray-light: #F7F8FA;
  --color-gray-section: #EBEFF1;
  --color-gray: #999999;
  --color-gray-dark: #666666;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-success: #28A745;
  --color-error: #DC3545;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Manrope', 'Inter', sans-serif;
  --font-accent: 'Barlow Condensed', 'Montserrat', sans-serif;
  --font-mono: 'Space Mono', monospace;

  /* Font Sizes - Larger, bolder like Voltak */
  --text-xs: 0.6875rem;
  --text-sm: 0.8125rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;

  /* Spacing - More generous like Voltak */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 5rem;
  --space-section: 6.25rem;

  /* Shadows - Larger, softer like Voltak */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0px 10px 60px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0px 15px 60px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0px 20px 60px rgba(0, 0, 0, 0.15);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 5px;
  --radius-lg: 10px;
  --radius-full: 50%;

  /* Transitions - Slower, more dramatic like Voltak */
  --transition-fast: 0.3s ease;
  --transition-base: 0.4s ease;
  --transition-slow: 0.6s ease;
  --transition-hover: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1340px;
  --header-height: 90px;
  --top-bar-height: 44px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.64;
  color: var(--color-body);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography (Voltak-style: bold, dramatic, tight) --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-charcoal);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-sm);
  color: var(--color-body);
  line-height: 1.7;
}

/* Eyebrow - Voltak style uppercase accent */
.eyebrow {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
  display: inline-block;
}

/* Highlight brush effect like Voltak */
.text-highlight {
  position: relative;
  display: inline;
}

.text-highlight::after {
  content: '';
  position: absolute;
  bottom: 0.05em;
  left: -2px;
  right: -2px;
  height: 0.275em;
  background: var(--color-secondary);
  opacity: 0.2;
  z-index: -1;
}

.lead {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-gray-dark);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-secondary);
}

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

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

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

.section--dark {
  background-color: var(--color-dark-2);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.7);
}

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

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

.section--navy h2,
.section--navy h3 {
  color: var(--color-white);
}

.grid {
  display: grid;
  gap: 30px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.text-center { text-align: center; }

/* --- SVG Wave Dividers (Voltak signature) --- */
.wave-divider {
  position: absolute;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 2;
}

.wave-divider--top {
  top: -1px;
}

.wave-divider--bottom {
  bottom: -1px;
}

.wave-divider svg {
  position: relative;
  display: block;
  width: calc(200% + 1.3px);
  height: 74px;
}

.wave-divider--large svg {
  height: 120px;
}

/* --- Buttons (Voltak-style: solid, dark hover) --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all var(--transition-hover);
  cursor: pointer;
  border: none;
  text-align: center;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  background-color: var(--color-dark-2);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--dark {
  background-color: var(--color-dark-2);
  color: var(--color-white);
}

.btn--dark:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-charcoal);
  border: 2px solid var(--color-charcoal);
}

.btn--outline:hover {
  background-color: var(--color-charcoal);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn--outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-dark-2);
  transform: translateY(-2px);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-dark-2);
}

.btn--white:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--small {
  padding: 12px 24px;
  font-size: var(--text-xs);
}

.btn--large {
  padding: 20px 48px;
  font-size: var(--text-base);
}

.btn i {
  font-size: 1em;
  transition: transform var(--transition-fast);
}

.btn:hover i {
  transform: translateX(3px);
}

/* --- Cards (Voltak-style: white, soft shadow, scale hover) --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-xl);
}

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  transition: transform 0.6s ease;
}

.card:hover .card__image {
  transform: scale(1.05);
}

.card__body {
  padding: 30px;
}

.card__category {
  font-family: var(--font-accent);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  margin-bottom: 8px;
  display: block;
}

.card__title {
  font-family: var(--font-accent);
  font-size: var(--text-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-charcoal);
  margin-bottom: 10px;
}

.card__text {
  font-size: var(--text-sm);
  color: var(--color-body);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.card__link {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-charcoal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
}

.card__link:hover {
  color: var(--color-secondary);
  gap: 10px;
}

.card__link i {
  font-size: 0.8em;
}

/* Icon Card - Voltak style */
.icon-card {
  text-align: center;
  padding: 40px 30px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.icon-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.icon-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-light);
  color: var(--color-secondary);
  border-radius: var(--radius-full);
  font-size: 1.8rem;
  transition: all var(--transition-base);
}

.icon-card:hover .icon-card__icon {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: scale(1.1);
}

.icon-card__title {
  font-family: var(--font-accent);
  font-size: var(--text-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-charcoal);
  margin-bottom: 10px;
}

.icon-card__text {
  font-size: var(--text-sm);
  color: var(--color-body);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

/* Image Overlay Card - Premium Voltak-style */
.overlay-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 380px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.overlay-card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.overlay-card:hover .overlay-card__bg {
  transform: scale(1.1);
}

.overlay-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.2) 60%, rgba(0, 0, 0, 0.4) 100%);
  transition: all var(--transition-slow);
}

.overlay-card:hover .overlay-card__overlay {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.4) 60%, rgba(0, 0, 0, 0.5) 100%);
}

.overlay-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  color: var(--color-white);
  z-index: 1;
  transform: translateY(10px);
  transition: transform var(--transition-base);
}

.overlay-card:hover .overlay-card__content {
  transform: translateY(0);
}

.overlay-card__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  color: var(--color-secondary);
}

.overlay-card__title {
  font-family: var(--font-accent);
  font-size: var(--text-xl);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-white);
  margin-bottom: 8px;
}

.overlay-card__text {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
  line-height: 1.5;
}

.overlay-card__clients {
  font-size: var(--text-xs);
  color: var(--color-secondary);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.overlay-card__bar {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: var(--color-secondary);
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.overlay-card:hover .overlay-card__bar {
  width: 100%;
}

/* --- Forms (Voltak-style) --- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-charcoal);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--color-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--color-gray-section);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  color: var(--color-charcoal);
  background: var(--color-gray-light);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  background: var(--color-white);
  box-shadow: 0 0 0 4px rgba(204, 41, 54, 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-secondary);
  margin-top: 2px;
  flex-shrink: 0;
}

/* --- Top Bar --- */
.top-bar {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-xs);
  height: var(--top-bar-height);
  letter-spacing: 0.3px;
}

.top-bar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar a {
  color: rgba(255, 255, 255, 0.8);
}

.top-bar a:hover {
  color: var(--color-secondary);
}

.top-bar__left,
.top-bar__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.top-bar__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-bar__item i {
  color: var(--color-secondary);
  font-size: 0.85em;
}

/* --- Header (Voltak-style: transparent → solid on scroll) --- */
.header {
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.0);
  backdrop-filter: none;
  z-index: 1000;
  transition: all 0.5s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
  top: 0;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  border-bottom: none;
}

/* When header is transparent (over hero), make text white */
.header:not(.scrolled) .nav__link {
  color: rgba(255, 255, 255, 0.9);
}

.header:not(.scrolled) .nav__link:hover,
.header:not(.scrolled) .nav__link.active {
  color: var(--color-secondary);
}

.header:not(.scrolled) .header__logo {
  color: var(--color-white);
}

.header:not(.scrolled) .menu-toggle span {
  background-color: var(--color-white);
}

.header:not(.scrolled) .header__logo-icon {
  background: var(--color-secondary);
}

.header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-charcoal);
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.header__logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.3rem;
  font-weight: 800;
  transition: all var(--transition-fast);
}

.header__logo span {
  color: var(--color-secondary);
}

/* --- Main Navigation --- */
.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 18px;
  height: var(--header-height);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-charcoal);
  transition: color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-secondary);
}

.nav__link i {
  font-size: 0.65em;
  transition: transform var(--transition-fast);
}

.nav__item:hover .nav__link i {
  transform: rotate(180deg);
}

/* Logo image */
.header__logo-img {
  height: 50px;
  width: auto;
  transition: all var(--transition-fast);
}

.header:not(.scrolled) .header__logo-img {
  filter: brightness(0) invert(1);
}

.footer__logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

/* --- Header Actions (search + lang) --- */
.header__actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: var(--space-sm);
}

.header__search-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-charcoal);
  font-size: 1rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.header:not(.scrolled) .header__search-btn {
  color: rgba(255, 255, 255, 0.85);
}

.header__search-btn:hover {
  color: var(--color-secondary);
}

/* Language Switcher */
.header__lang {
  position: relative;
}

.header__lang-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-gray-section);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-charcoal);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: transparent;
}

.header:not(.scrolled) .header__lang-btn {
  border-color: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.85);
}

.header__lang-btn:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.header__lang-btn i {
  font-size: 0.6em;
  transition: transform var(--transition-fast);
}

.header__lang.active .header__lang-btn i {
  transform: rotate(180deg);
}

.header__lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all var(--transition-fast);
  overflow: hidden;
  border: 1px solid var(--color-gray-section);
  z-index: 100;
}

.header__lang.active .header__lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__lang-option {
  display: block;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-charcoal);
  transition: all var(--transition-fast);
}

.header__lang-option:hover {
  background: var(--color-gray-light);
  color: var(--color-secondary);
}

.header__lang-option.active {
  color: var(--color-secondary);
}

/* --- Search Overlay --- */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-overlay__inner {
  width: 100%;
  max-width: 700px;
  padding: 0 24px;
  position: relative;
}

.search-overlay__close {
  position: absolute;
  top: -60px;
  right: 24px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  border: none;
}

.search-overlay__close:hover {
  color: var(--color-secondary);
}

.search-overlay__form {
  display: flex;
  border-bottom: 3px solid rgba(255, 255, 255, 0.3);
}

.search-overlay__input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  padding: 16px 0;
}

.search-overlay__input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.search-overlay__submit {
  color: rgba(255, 255, 255, 0.5);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 8px;
  background: none;
  border: none;
  transition: color var(--transition-fast);
}

.search-overlay__submit:hover {
  color: var(--color-secondary);
}

/* --- Mega Menu --- */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 30px;
  min-width: 680px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  border-top: 3px solid var(--color-secondary);
}

.nav__item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.mega-menu__group h4 {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-charcoal);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-gray-section);
}

.mega-menu__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 0;
  font-size: var(--text-sm);
  color: var(--color-body);
  transition: all var(--transition-fast);
}

.mega-menu__link:hover {
  color: var(--color-secondary);
  padding-left: 6px;
}

.mega-menu__link i {
  font-size: 0.6em;
  color: var(--color-secondary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.mega-menu__link:hover i {
  opacity: 1;
}

.mega-menu__footer {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-gray-section);
}

.mega-menu__footer a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- Mobile Menu Toggle --- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  cursor: pointer;
  z-index: 1100;
}

.menu-toggle span {
  width: 26px;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: all var(--transition-base);
  display: block;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* --- Mobile Menu Overlay --- */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-white);
  z-index: 1050;
  padding-top: calc(var(--header-height) + var(--top-bar-height));
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu__nav {
  padding: 24px;
}

.mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-charcoal);
  border-bottom: 1px solid var(--color-gray-section);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mobile-menu__sub {
  display: none;
  padding-left: var(--space-sm);
}

.mobile-menu__sub.active {
  display: block;
}

.mobile-menu__sub a {
  display: block;
  padding: 10px 0;
  font-size: var(--text-base);
  color: var(--color-body);
  font-weight: 400;
  text-transform: none;
}

.mobile-menu__cta {
  padding: 24px;
}

/* --- Footer (Voltak dark premium) --- */
.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer__logo span {
  color: var(--color-secondary);
}

.footer__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.footer__social a:hover {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.footer__heading {
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.footer__links a {
  display: block;
  padding: 6px 0;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-secondary);
  padding-left: 6px;
}

.footer__contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__contact-item i {
  color: var(--color-secondary);
  margin-top: 4px;
  flex-shrink: 0;
}

.footer__bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

.footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.footer__legal a {
  color: rgba(255, 255, 255, 0.35);
}

.footer__legal a:hover {
  color: var(--color-secondary);
}

/* --- Floating Elements --- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
  z-index: 900;
  transition: all var(--transition-base);
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.45);
}

.emergency-float {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 60px;
  height: 60px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  display: none;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  box-shadow: 0 8px 25px rgba(204, 41, 54, 0.35);
  z-index: 900;
  transition: all var(--transition-base);
  animation: pulse-emergency 2s infinite;
}

@keyframes pulse-emergency {
  0%, 100% { box-shadow: 0 0 0 0 rgba(204, 41, 54, 0.4); }
  50% { box-shadow: 0 0 0 14px rgba(204, 41, 54, 0); }
}

.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 28px;
  width: 48px;
  height: 48px;
  background: var(--color-dark-2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--color-secondary);
  transform: translateY(-3px);
}

/* --- Page Header (Inner Pages - Voltak-style dramatic) --- */
.page-header {
  background: var(--color-dark);
  padding: calc(80px + var(--header-height) + var(--top-bar-height)) 0 80px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, rgba(204, 41, 54, 0.05) 100%);
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-secondary);
}

.page-header__breadcrumb {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--space-md);
}

.page-header__breadcrumb a {
  color: rgba(255, 255, 255, 0.4);
}

.page-header__breadcrumb a:hover {
  color: var(--color-secondary);
}

.page-header__breadcrumb span {
  color: var(--color-secondary);
}

.page-header h1 {
  color: var(--color-white);
  font-size: var(--text-5xl);
  margin-bottom: 12px;
}

.page-header p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-lg);
  max-width: 600px;
}

/* --- Section Headers (Voltak-style centered) --- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--color-body);
}

/* --- Badges --- */
.badge {
  display: inline-block;
  padding: 5px 14px;
  font-family: var(--font-accent);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: var(--radius-sm);
}

.badge--primary { background: var(--color-primary); color: var(--color-white); }
.badge--secondary { background: var(--color-secondary); color: var(--color-white); }
.badge--accent { background: var(--color-accent); color: var(--color-white); }
.badge--success { background: var(--color-success); color: var(--color-white); }

/* --- Scroll Animations (Voltak-style smooth reveals) --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered reveal for grid children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

/* --- Spacer --- */
.header-spacer {
  height: calc(var(--header-height) + var(--top-bar-height));
}

/* --- Misc Utilities --- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }