/* ==========================================================================
   Helmet Construction Co. — Design Tokens & Base Styles
   Modern minimal corporate, bilingual EN/AR (logical properties for RTL)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Sans+Arabic:wght@400;500;600;700;800&display=swap');

:root {
  /* Brand palette — sampled from the Helmet Construction Co. mark */
  --navy-950: #0a1220;
  --navy-900: #0f1a2c;
  --navy-800: #16263d;
  --navy-700: #203552;
  --navy-600: #2d476a;
  --navy-500: #3e5c87;

  --red-700: #6e1f22;
  --red-600: #8a2529;
  --red-500: #a52e30;
  --red-400: #c14547;
  --red-300: #dc7375;

  --gray-50: #f7f8fa;
  --gray-100: #eef1f4;
  --gray-200: #dfe4e9;
  --gray-300: #c7cfd7;
  --gray-400: #99a4b0;
  --gray-500: #6d7a88;
  --gray-600: #4f5b68;
  --gray-800: #2a323c;
  --white: #ffffff;

  /* Semantic tokens */
  --color-bg: var(--gray-50);
  --color-surface: var(--white);
  --color-surface-alt: var(--gray-100);
  --color-text: var(--navy-900);
  --color-text-muted: var(--gray-600);
  --color-text-on-dark: var(--white);
  --color-text-on-dark-muted: #aab6c4;

  --color-primary: var(--navy-900);
  --color-primary-dark: var(--navy-950);
  --color-accent: var(--red-500);
  --color-accent-dark: var(--red-700);
  --color-accent-light: var(--red-400);
  --color-on-primary: var(--white);
  --color-on-accent: var(--white);
  --color-border: var(--gray-200);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --color-focus-ring: var(--red-400);

  /* Typography */
  --font-heading: 'Archivo', 'IBM Plex Sans Arabic', -apple-system, sans-serif;
  --font-body: 'Inter', 'IBM Plex Sans Arabic', -apple-system, sans-serif;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 2.75rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.25rem;

  --lh-tight: 1.15;
  --lh-snug: 1.35;
  --lh-body: 1.65;

  /* Spacing (8px rhythm) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6.5rem;
  --space-12: 8rem;

  --container-max: 1240px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(10, 18, 32, 0.06), 0 1px 1px rgba(10, 18, 32, 0.04);
  --shadow-md: 0 8px 24px rgba(10, 18, 32, 0.08), 0 2px 6px rgba(10, 18, 32, 0.05);
  --shadow-lg: 0 24px 60px rgba(10, 18, 32, 0.16), 0 8px 20px rgba(10, 18, 32, 0.08);
  --shadow-accent: 0 12px 28px rgba(165, 46, 48, 0.28);

  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;
  --dur-slower: 700ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --header-h: 84px;
}

html[dir='rtl'] {
  --font-heading: 'IBM Plex Sans Arabic', 'Archivo', sans-serif;
  --font-body: 'IBM Plex Sans Arabic', 'Inter', sans-serif;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-fast: 1ms;
    --dur-base: 1ms;
    --dur-slow: 1ms;
    --dur-slower: 1ms;
  }
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, picture, svg, video { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  color: var(--color-text);
}
html[dir='rtl'] h1, html[dir='rtl'] h2, html[dir='rtl'] h3, html[dir='rtl'] h4 { letter-spacing: 0; }

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p { color: var(--color-text-muted); }

:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection { background: var(--color-accent); color: var(--white); }

/* ==========================================================================
   Layout utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-10); }
.section-sm { padding-block: var(--space-8); }
.section-dark { background: var(--navy-950); color: var(--color-text-on-dark); }
.section-dark p { color: var(--color-text-on-dark-muted); }
.section-dark h2, .section-dark h3, .section-dark h4 { color: var(--white); }
.section-alt { background: var(--color-surface-alt); }

.section-header { max-width: 720px; margin-block-end: var(--space-8); }
.section-header.centered { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-block-end: var(--space-4);
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}
.section-header.centered .eyebrow::before { display: none; }
.section-dark .eyebrow { color: var(--red-300); }

.section-title { margin-block-end: var(--space-4); }
.section-desc { font-size: var(--fs-md); max-width: 60ch; }
.section-header.centered .section-desc { margin-inline: auto; }

.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
  white-space: nowrap;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn:active { transform: scale(0.97); }

.btn-accent {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover { background: var(--red-600); transform: translateY(-2px); box-shadow: 0 16px 32px rgba(165, 46, 48, 0.34); }

.btn-primary {
  background: var(--white);
  color: var(--navy-900);
}
.btn-primary:hover { background: var(--gray-100); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: currentColor;
  border: 1.5px solid var(--color-border-dark);
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.3); }

.btn-outline-dark {
  background: transparent;
  color: var(--navy-900);
  border: 1.5px solid var(--gray-300);
}
.btn-outline-dark:hover { background: var(--navy-900); color: var(--white); border-color: var(--navy-900); }

.btn-ghost { background: transparent; color: var(--color-accent); padding-inline: 0.25rem; }
.btn-ghost svg { transition: transform var(--dur-base) var(--ease-out); }
.btn-ghost:hover svg { transform: translateX(4px); }
html[dir='rtl'] .btn-ghost:hover svg { transform: translateX(-4px) scaleX(-1); }
html[dir='rtl'] .btn-ghost svg { transform: scaleX(-1); }

.btn-lg { padding: 1.1rem 2.25rem; font-size: var(--fs-base); }
.btn-block { width: 100%; }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), height var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(10, 18, 32, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06), var(--shadow-md);
  height: 72px;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); width: 100%; }

.brand { display: flex; align-items: center; gap: var(--space-3); color: var(--white); }
.brand-mark {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-name { font-family: var(--font-heading); font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; line-height: 1.1; }
.brand-name span { display: block; font-family: var(--font-body); font-weight: 500; font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--red-300); margin-block-start: 2px; }

.nav-list { display: flex; align-items: center; gap: var(--space-7); }
.nav-link {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  padding-block: var(--space-2);
  transition: color var(--dur-base) var(--ease-out);
}
.nav-link::after {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--dur-base) var(--ease-out);
}
.nav-link:hover, .nav-link.is-active { color: var(--white); }
.nav-link:hover::after, .nav-link.is-active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: var(--space-5); }

.lang-switch {
  display: flex; align-items: center;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-full);
  padding: 3px;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
}
.lang-switch a {
  padding: 5px 12px;
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--dur-fast) var(--ease-out);
}
.lang-switch a.is-current { background: var(--color-accent); color: var(--white); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  .nav-list { position: fixed; inset: 0; top: var(--header-h); z-index: 90; background: var(--navy-950); flex-direction: column; align-items: stretch; gap: 0; padding: var(--space-6) var(--space-5); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility 0s var(--dur-base); }
  .nav-list.is-open { opacity: 1; transform: translateY(0); visibility: visible; transition-delay: 0s; }
  .nav-list .nav-link { padding-block: var(--space-4); border-block-end: 1px solid var(--color-border-dark); font-size: var(--fs-md); }
  .nav-list .nav-cta { margin-block-start: var(--space-5); }
  .menu-toggle { display: flex; }
  .header-actions .lang-switch { display: none; }
  .nav-list .lang-switch-mobile { display: flex; margin-block-start: var(--space-6); }
}
@media (min-width: 961px) { .lang-switch-mobile { display: none; } }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  color: var(--white);
  overflow: hidden;
  padding-block-start: var(--header-h);
}

.hero-skyline {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  width: 100%;
  height: auto;
  opacity: 0.55;
  color: var(--navy-700);
  pointer-events: none;
}
.hero-skyline .crane { transform-origin: bottom; }

.hero-grid-texture {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 90%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  inset-inline-end: -10%;
  top: -10%;
  width: 60%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(165, 46, 48, 0.35) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 2; padding-block: var(--space-9); width: 100%; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-heading); font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--red-300);
  background: rgba(165, 46, 48, 0.14);
  border: 1px solid rgba(165, 46, 48, 0.35);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  margin-block-end: var(--space-6);
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--red-400); box-shadow: 0 0 0 4px rgba(196, 69, 71, 0.25); }

.hero-title { font-size: clamp(2.5rem, 5.4vw, var(--fs-5xl)); max-width: 16ch; margin-block-end: var(--space-5); color: var(--white); }
.hero-title em { font-style: normal; color: var(--red-400); }
.hero-desc { font-size: var(--fs-md); max-width: 52ch; color: var(--color-text-on-dark-muted); margin-block-end: var(--space-7); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-block-end: var(--space-10); }

.hero-stats { display: flex; flex-wrap: wrap; gap: var(--space-8); border-block-start: 1px solid var(--color-border-dark); padding-block-start: var(--space-6); }
.stat-value { font-family: var(--font-heading); font-size: var(--fs-3xl); font-weight: 800; color: var(--white); display: flex; align-items: baseline; gap: 2px; }
.stat-value .suffix { color: var(--red-400); font-size: var(--fs-xl); }
.stat-label { font-size: var(--fs-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-on-dark-muted); margin-block-start: var(--space-2); }

.scroll-cue {
  position: absolute; bottom: var(--space-8); inset-inline-start: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  color: var(--color-text-on-dark-muted);
  font-size: var(--fs-xs); letter-spacing: 0.1em; text-transform: uppercase;
  z-index: 2;
}
html[dir='rtl'] .scroll-cue { transform: translateX(50%); }
.scroll-cue-line { width: 1px; height: 32px; background: linear-gradient(var(--red-400), transparent); animation: scrollcue 1.8s var(--ease-in-out) infinite; }
@keyframes scrollcue { 0% { transform: scaleY(0); transform-origin: top; opacity: 0; } 40% { transform: scaleY(1); transform-origin: top; opacity: 1; } 60% { transform: scaleY(1); transform-origin: bottom; opacity: 1; } 100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; } }

/* Page hero (inner pages, shorter) */
.page-hero {
  position: relative;
  padding-block: calc(var(--header-h) + var(--space-9)) var(--space-9);
  background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: var(--white);
  overflow: hidden;
}
.page-hero .hero-grid-texture { opacity: 0.7; }
.page-hero-inner { position: relative; z-index: 2; max-width: 760px; }
.page-hero h1 { color: var(--white); }
.breadcrumb { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-on-dark-muted); margin-block-end: var(--space-5); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb .sep { opacity: 0.5; }

/* ==========================================================================
   Cards
   ========================================================================== */

.value-card, .service-card, .cert-card, .process-step, .team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.value-card:hover, .service-card:hover, .cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--navy-900);
  color: var(--white);
  margin-block-end: var(--space-5);
  transition: background var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.card-icon svg { width: 26px; height: 26px; }
.value-card:hover .card-icon, .service-card:hover .card-icon, .cert-card:hover .card-icon { background: var(--color-accent); transform: rotate(-6deg) scale(1.05); }

.value-card h3, .service-card h3, .cert-card h3 { margin-block-end: var(--space-2); font-size: var(--fs-md); }
.value-card p, .service-card p, .cert-card p { font-size: var(--fs-sm); }

.service-card { display: flex; flex-direction: column; }
.service-card .service-list { margin-block-start: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.service-card .service-list li { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--color-text-muted); }
.service-card .service-list svg { width: 15px; height: 15px; color: var(--color-accent); flex-shrink: 0; }

/* Testimonial */
.testimonial {
  background: var(--navy-950);
  border-radius: var(--radius-lg);
  padding: var(--space-9);
  position: relative;
  overflow: hidden;
}
.testimonial::before {
  content: '\201C';
  position: absolute;
  top: -0.4em; inset-inline-start: var(--space-6);
  font-family: Georgia, serif;
  font-size: 12rem;
  color: rgba(255, 255, 255, 0.05);
  line-height: 1;
}
html[dir='rtl'] .testimonial::before { content: '\201D'; }
.testimonial-quote { position: relative; z-index: 1; font-family: var(--font-heading); font-size: var(--fs-xl); font-weight: 500; color: var(--white); max-width: 46ch; line-height: var(--lh-snug); margin-block-end: var(--space-6); }
.testimonial-author { display: flex; align-items: center; gap: var(--space-4); position: relative; z-index: 1; }
.testimonial-avatar { width: 52px; height: 52px; border-radius: 50%; background: var(--color-accent); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 700; color: var(--white); flex-shrink: 0; }
.testimonial-name { color: var(--white); font-weight: 600; font-size: var(--fs-sm); }
.testimonial-role { color: var(--color-text-on-dark-muted); font-size: var(--fs-xs); }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--red-700), var(--red-500));
  border-radius: var(--radius-lg);
  padding: var(--space-9);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  flex-wrap: wrap;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: '';
  position: absolute; inset-inline-end: -60px; top: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.cta-band h2 { color: var(--white); margin-block-end: var(--space-2); }
.cta-band p { color: rgba(255, 255, 255, 0.85); }
.cta-band-text { position: relative; z-index: 1; max-width: 44ch; }
.cta-band-actions { position: relative; z-index: 1; display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer { background: var(--navy-950); color: var(--color-text-on-dark-muted); padding-block-start: var(--space-10); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--space-8); padding-block-end: var(--space-9); border-block-end: 1px solid var(--color-border-dark); }
@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }

.footer-brand .brand { margin-block-end: var(--space-4); }
.footer-brand p { max-width: 34ch; font-size: var(--fs-sm); margin-block-end: var(--space-5); }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--color-border-dark);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.footer-social svg { width: 17px; height: 17px; }
.footer-social a:hover { background: var(--color-accent); border-color: var(--color-accent); transform: translateY(-3px); }

.footer-heading { color: var(--white); font-size: var(--fs-sm); font-weight: 700; margin-block-end: var(--space-5); font-family: var(--font-heading); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a { font-size: var(--fs-sm); transition: color var(--dur-fast) var(--ease-out); }
.footer-links a:hover { color: var(--white); }
.footer-contact { display: flex; flex-direction: column; gap: var(--space-4); font-size: var(--fs-sm); }
.footer-contact li { display: flex; align-items: flex-start; gap: var(--space-3); }
.footer-contact svg { width: 18px; height: 18px; color: var(--red-300); flex-shrink: 0; margin-block-start: 2px; }
.footer-contact a:hover { color: var(--white); }

.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); padding-block: var(--space-6); font-size: var(--fs-xs); }
.footer-bottom-links { display: flex; gap: var(--space-5); }

/* WhatsApp FAB */
.whatsapp-fab {
  position: fixed;
  bottom: var(--space-6);
  inset-inline-end: var(--space-6);
  z-index: 80;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25d366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.45);
  transition: transform var(--dur-base) var(--ease-spring);
}
.whatsapp-fab svg { width: 30px; height: 30px; color: var(--white); }
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab::before {
  content: '';
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid #25d366;
  animation: pulsering 2.4s var(--ease-out) infinite;
}
@keyframes pulsering { 0% { transform: scale(1); opacity: 0.6; } 100% { transform: scale(1.6); opacity: 0; } }

.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  inset-inline-end: calc(var(--space-6) + 76px);
  z-index: 79;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility 0s var(--dur-base);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.back-to-top svg { width: 18px; height: 18px; }
@media (max-width: 560px) { .whatsapp-fab { width: 52px; height: 52px; bottom: var(--space-4); inset-inline-end: var(--space-4); } .whatsapp-fab svg { width: 26px; height: 26px; } .back-to-top { width: 42px; height: 42px; bottom: var(--space-4); inset-inline-end: calc(var(--space-4) + 64px); } }

/* ==========================================================================
   Scroll reveal (base — JS toggles .is-visible)
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slower) var(--ease-out), transform var(--dur-slower) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-visible { opacity: 1; transform: none; }

.reveal-scale { opacity: 0; transform: scale(0.94); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); transition-delay: var(--reveal-delay, 0ms); }
.reveal-scale.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-scale { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group.full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.form-label { font-size: var(--fs-sm); font-weight: 600; color: var(--color-text); }
.form-label .req { color: var(--color-accent); }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--fs-sm);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(165, 46, 48, 0.12);
  outline: none;
}
.form-textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: var(--fs-xs); color: var(--color-text-muted); }
.form-status { font-size: var(--fs-sm); padding: var(--space-4); border-radius: var(--radius-md); display: none; }
.form-status.is-success { display: flex; align-items: center; gap: var(--space-2); background: #e9f7ef; color: #1e7e42; }
.form-status.is-error { display: flex; align-items: center; gap: var(--space-2); background: #fdecec; color: #b3261e; }

/* ==========================================================================
   Responsive type & spacing
   ========================================================================== */

@media (max-width: 1024px) {
  :root { --fs-4xl: 2.75rem; --fs-5xl: 3.25rem; --fs-3xl: 2.25rem; --fs-2xl: 1.9rem; }
  .section { padding-block: var(--space-9); }
}
@media (max-width: 640px) {
  :root { --fs-4xl: 2.25rem; --fs-5xl: 2.5rem; --fs-2xl: 1.65rem; --header-h: 72px; }
  .container { padding-inline: var(--space-4); }
  .section { padding-block: var(--space-8); }
  .hero-actions .btn { width: 100%; }
  .cta-band { padding: var(--space-6); flex-direction: column; align-items: flex-start; }
  .testimonial { padding: var(--space-6); }
}

@media (min-width: 375px) and (max-width: 767px) {
  .hero-stats { gap: var(--space-5); }
}

/* ==========================================================================
   Value / process strip
   ========================================================================== */

.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-5); position: relative; }
.process-steps::before {
  content: '';
  position: absolute;
  top: 26px; inset-inline: 8%;
  height: 2px;
  background: repeating-linear-gradient(to right, var(--color-border) 0 8px, transparent 8px 16px);
  z-index: 0;
}
html[dir='rtl'] .process-steps::before { background: repeating-linear-gradient(to left, var(--color-border) 0 8px, transparent 8px 16px); }
.process-step { background: transparent; border: none; padding: 0; position: relative; z-index: 1; }
.process-step-num {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--navy-900); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 800; font-size: var(--fs-md);
  margin-block-end: var(--space-5);
  transition: background var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.process-step:hover .process-step-num { background: var(--color-accent); transform: scale(1.08); }
.process-step h3 { font-size: var(--fs-base); margin-block-end: var(--space-2); }
.process-step p { font-size: var(--fs-xs); }
@media (max-width: 1024px) { .process-steps { grid-template-columns: repeat(2, 1fr); } .process-steps::before { display: none; } }
@media (max-width: 560px) { .process-steps { grid-template-columns: 1fr; } }

/* ==========================================================================
   Projects — filter + grid + modal
   ========================================================================== */

.projects-filter { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-end: var(--space-8); }
.filter-btn {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--fs-sm); font-weight: 600;
  color: var(--color-text-muted);
  transition: all var(--dur-fast) var(--ease-out);
}
.filter-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.filter-btn.is-active { background: var(--navy-900); border-color: var(--navy-900); color: var(--white); }

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
@media (max-width: 1024px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .projects-grid { grid-template-columns: 1fr; } }

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  display: block;
  width: 100%;
  text-align: start;
}
.project-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.project-card.is-hidden { display: none; }

.project-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}
.project-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 26px),
    linear-gradient(200deg, rgba(10,18,32,0) 30%, rgba(10,18,32,0.55) 100%);
}
.project-thumb-tag {
  position: relative; z-index: 1;
  font-family: var(--font-heading); font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--white);
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
}
.thumb-1 { background: linear-gradient(135deg, var(--navy-700), var(--navy-950)); }
.thumb-2 { background: linear-gradient(135deg, var(--red-600), var(--navy-950)); }
.thumb-3 { background: linear-gradient(135deg, var(--navy-600), var(--red-700)); }
.thumb-4 { background: linear-gradient(135deg, var(--navy-800), var(--navy-500)); }
.thumb-5 { background: linear-gradient(135deg, var(--red-700), var(--navy-800)); }
.thumb-6 { background: linear-gradient(135deg, var(--navy-950), var(--navy-600)); }

.project-info { padding: var(--space-5); }
.project-info h3 { font-size: var(--fs-md); margin-block-end: var(--space-2); }
.project-meta { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--color-text-muted); }
.project-meta svg { width: 14px; height: 14px; }
.project-meta .sep { opacity: 0.4; }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10, 18, 32, 0.72);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-5);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility 0s var(--dur-base);
}
.modal-overlay.is-open { opacity: 1; visibility: visible; transition-delay: 0s; }
.modal-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 780px; width: 100%;
  max-height: 88vh; overflow-y: auto;
  transform: translateY(24px) scale(0.98);
  transition: transform var(--dur-slow) var(--ease-spring);
  box-shadow: var(--shadow-lg);
}
.modal-overlay.is-open .modal-panel { transform: none; }
.modal-close {
  position: absolute; top: var(--space-5); inset-inline-end: var(--space-5);
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: flex; align-items: center; justify-content: center;
  z-index: 2; box-shadow: var(--shadow-sm);
}
.modal-close svg { width: 18px; height: 18px; }
.modal-hero { aspect-ratio: 16/7; position: relative; border-radius: var(--radius-lg) var(--radius-lg) 0 0; overflow: hidden; }
.modal-body { padding: var(--space-7); }
.modal-body h3 { font-size: var(--fs-xl); margin-block-end: var(--space-3); }
.modal-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-block: var(--space-6); padding: var(--space-5); background: var(--color-surface-alt); border-radius: var(--radius-md); }
.modal-stats div { text-align: center; }
.modal-stats .val { font-family: var(--font-heading); font-weight: 800; font-size: var(--fs-lg); color: var(--navy-900); display: block; }
.modal-stats .lbl { font-size: var(--fs-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
@media (max-width: 560px) { .modal-body { padding: var(--space-5); } .modal-stats { grid-template-columns: 1fr; gap: var(--space-3); } }

/* ==========================================================================
   About — timeline & team
   ========================================================================== */

.timeline { position: relative; display: flex; flex-direction: column; gap: var(--space-8); }
.timeline::before {
  content: '';
  position: absolute; inset-inline-start: 27px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--color-border);
}
.timeline-item { position: relative; padding-inline-start: var(--space-11); }
html[dir='rtl'] .timeline-item { padding-inline-start: var(--space-11); }
.timeline-dot {
  position: absolute; inset-inline-start: 0; top: 0;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--navy-900); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 800;
  border: 4px solid var(--color-bg);
}
.timeline-item:hover .timeline-dot { background: var(--color-accent); }
.timeline-item h3 { font-size: var(--fs-md); margin-block-end: var(--space-2); }
.timeline-item p { font-size: var(--fs-sm); max-width: 60ch; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
@media (max-width: 900px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .team-grid { grid-template-columns: 1fr; } }
.team-card { text-align: center; padding: var(--space-6) var(--space-5); }
.avatar-initials {
  width: 84px; height: 84px; border-radius: 50%;
  margin-inline: auto; margin-block-end: var(--space-5);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 800; font-size: var(--fs-lg);
  color: var(--white);
  background: linear-gradient(135deg, var(--navy-700), var(--red-600));
}
.team-card h3 { font-size: var(--fs-base); margin-block-end: var(--space-1); }
.team-role { font-size: var(--fs-xs); color: var(--color-accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }

.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 900px) { .values-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .values-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Service detail rows (services.html)
   ========================================================================== */

.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-9);
  align-items: center;
  padding-block: var(--space-9);
  border-block-end: 1px solid var(--color-border);
}
.service-row:last-of-type { border-block-end: none; }
.service-row .service-panel { order: 2; }
.service-row.reverse .service-panel { order: -1; }
@media (max-width: 860px) {
  .service-row { grid-template-columns: 1fr; gap: var(--space-6); padding-block: var(--space-7); }
  .service-row .service-panel { order: -1 !important; }
}

.service-panel {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-panel::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 26px);
}
.service-panel svg { position: relative; z-index: 1; width: 34%; height: 34%; color: rgba(255,255,255,0.92); }

.service-detail .eyebrow { margin-block-end: var(--space-3); }
.service-detail h3 { font-size: var(--fs-xl); margin-block-end: var(--space-4); }
.service-detail > p { margin-block-end: var(--space-5); font-size: var(--fs-md); }
.service-detail .service-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.service-detail .service-list li { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-sm); color: var(--color-text); }
.service-detail .service-list svg { width: 17px; height: 17px; color: var(--color-accent); flex-shrink: 0; }
@media (max-width: 480px) { .service-detail .service-list { grid-template-columns: 1fr; } }

/* ==========================================================================
   Certifications
   ========================================================================== */

.cert-card { text-align: center; padding: var(--space-7) var(--space-5); }
.cert-card .card-icon { margin-inline: auto; }
.cert-id { display: inline-block; margin-block-start: var(--space-3); font-size: var(--fs-xs); color: var(--color-text-muted); background: var(--color-surface-alt); padding: 0.3rem 0.8rem; border-radius: var(--radius-full); }

.safety-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); text-align: center; }
@media (max-width: 900px) { .safety-stats { grid-template-columns: repeat(2, 1fr); } }
.safety-stats .stat-value { color: var(--navy-900); justify-content: center; }
.safety-stats .stat-value .suffix { color: var(--color-accent); }
.safety-stats .stat-label { color: var(--color-text-muted); }

.partners-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--space-8); padding-block: var(--space-6); }
.partner-mark { font-family: var(--font-heading); font-weight: 800; font-size: var(--fs-lg); color: var(--gray-400); letter-spacing: -0.02em; transition: color var(--dur-base) var(--ease-out); }
.partner-mark:hover { color: var(--navy-900); }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: var(--space-9); align-items: start; }
@media (max-width: 960px) { .contact-layout { grid-template-columns: 1fr; } }

.contact-info-card { background: var(--navy-950); color: var(--white); border-radius: var(--radius-lg); padding: var(--space-7); }
.contact-info-card p { color: var(--color-text-on-dark-muted); margin-block-end: var(--space-6); }
.contact-info-list { display: flex; flex-direction: column; gap: var(--space-5); margin-block-end: var(--space-7); }
.contact-info-list li { display: flex; gap: var(--space-4); }
.contact-info-list .card-icon { margin-block-end: 0; flex-shrink: 0; width: 44px; height: 44px; background: rgba(255,255,255,0.08); }
.contact-info-list .card-icon svg { width: 20px; height: 20px; }
.contact-info-list h4 { color: var(--white); font-size: var(--fs-sm); margin-block-end: 2px; }
.contact-info-list p, .contact-info-list a { font-size: var(--fs-sm); color: var(--color-text-on-dark-muted); margin: 0; }
.contact-info-list a:hover { color: var(--white); }

.map-embed { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); aspect-ratio: 16/10; margin-block-start: var(--space-6); }
.map-embed iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.3) contrast(1.05); }

.contact-form-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-7); }

/* ==========================================================================
   Misc utilities
   ========================================================================== */

.skip-link {
  position: absolute; top: -100px; inset-inline-start: var(--space-4);
  background: var(--color-accent); color: var(--white);
  padding: var(--space-3) var(--space-5); border-radius: var(--radius-md);
  z-index: 999; transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
[data-count] { font-variant-numeric: tabular-nums; }

.tag-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-xs); font-weight: 600; padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full); background: var(--color-surface-alt); color: var(--color-text-muted);
}