/* ===========================
   RESET & BASE TYPOGRAPHY
   =========================== */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
u, i, center, dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
  box-sizing: border-box;
}
article,aside,details,figcaption,figure,
footer,header,hgroup,menu,nav,section{
  display:block;
}
body {
  line-height: 1.5;
  background: #11161c;
  font-family: 'Roboto', Arial, sans-serif;
  color: #e3e7eb;
  min-width: 320px;
  font-size: 16px;
  background-image: url('../assets/bg-industrial-texture.png');
  background-repeat: repeat;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul,
ol {
  margin-left: 1.5em;
  margin-bottom: 1em;
}
li {
  margin-bottom: 0.4em;
}

/* ===========================
   FONT IMPORTS
   =========================== */
@import url('https://fonts.googleapis.com/css?family=Oswald:400,500,700&display=swap');
@import url('https://fonts.googleapis.com/css?family=Roboto:400,500,700&display=swap');

:root {
  --color-primary: #15416C;
  --color-secondary: #3EBCA0;
  --color-accent: #FFD743;
  --color-bg-dark: #10161C;
  --color-surface: #181d23;
  --color-metal: #717278;
  --color-card: #232831;
  --color-footer: #161B22;
  --color-light: #f4f7fa;
  --color-border: #30343b;
  --color-btn-bg: #2869A8;
  --color-btn-hover: #1c2940;
  --shadow-main: 0 6px 32px rgba(13,23,29,0.21);
  --shadow-card: 0 2px 16px 0 rgba(13,23,29,0.08);
  --shadow-hover: 0 6px 24px 0 rgba(62,188,160,0.25);
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

/* ===========================
   LAYOUT HELPERS & CONTAINERS
   =========================== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}
.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}

/* SPACING & FLEX PATTERNS */
.section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: none;
}
.card-container,
.feature-grid,
.card-grid,
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
}
.card {
  margin-bottom: 20px;
  position: relative;
  box-shadow: var(--shadow-card);
  background: var(--color-card);
  border-radius: 14px;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #f4f7fa;
  color: #232831;
  border-radius: 16px;
  padding: 20px 32px;
  margin-bottom: 24px;
  box-shadow: 0 2px 16px rgba(21,65,108, 0.07);
  font-size: 18px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px) scale(1.01);
}
.testimonial-meta {
  font-size: 16px;
  font-weight: 700;
  font-family: 'Oswald', Arial, sans-serif;
  color: var(--color-metal);
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 24px 20px;
  min-width: 220px;
  max-width: 330px;
  flex: 1 1 220px;
  box-shadow: var(--shadow-card);
  margin-bottom: 10px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.feature-item img {
  width: 44px;
  height: 44px;
  filter: grayscale(30%) brightness(0.95) drop-shadow(0 4px 12px rgba(49,57,76,0.19));
}
.feature-item:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px) scale(1.025);
}

/* ===================================
   TYPOGRAPHY & HEADING HIERARCHY
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Oswald', Arial, sans-serif;
  letter-spacing: 0.02em;
  font-weight: 700;
  color: var(--color-accent);
  text-shadow: 0 1px 4px rgba(21,65,108,0.07);
}
h1 {
  font-size: 32px;
  margin-bottom: 10px;
}
h2 {
  font-size: 24px;
}
h3 {
  font-size: 20px;
  color: var(--color-secondary);
}
h4, h5 {
  font-size: 16px;
  color: var(--color-metal);
  font-family: 'Roboto', Arial, sans-serif;
}
p, ul, ol, li, .text-section {
  font-family: 'Roboto', Arial, sans-serif;
  color: #d2dae5;
  font-size: 16px;
}
strong {
  color: var(--color-accent);
  font-weight: 700;
}
a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover,
a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}
.cta-button {
  display: inline-block;
  background: var(--color-btn-bg);
  color: var(--color-accent);
  padding: 14px 36px;
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 18px;
  font-weight: 700;
  border: none;
  border-radius: 32px;
  box-shadow: 0 3px 16px rgba(21,65,108,0.08);
  letter-spacing: 0.04em;
  margin-top: 12px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.cta-button:hover,
.cta-button:focus {
  background: var(--color-secondary);
  color: #181d23;
  transform: translateY(-2px) scale(1.03);
  box-shadow: var(--shadow-main);
}

/* ===================
   HEADER + NAVIGATION
   =================== */
header {
  background: var(--color-bg-dark);
  border-bottom: 2px solid var(--color-metal);
  box-shadow: 0 2px 12px rgba(21,65,108,0.06);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 20;
}
header .container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 12px 20px;
  gap: 12px;
}
header img[alt="IonSurge Transport"] {
  width: 154px;
  min-width: 95px;
  margin-right: 22px;
  user-select: none;
}
.main-nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  font-family: 'Oswald',Arial,sans-serif;
  font-size: 16px;
  color: #e3e7eb;
  text-decoration: none;
  padding: 7px 12px;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.main-nav a:hover,
.main-nav a:focus {
  color: var(--color-secondary);
  background: rgba(30,42,58,0.32);
}
.mobile-menu-toggle {
  display: none;
  background: none;
  color: var(--color-accent);
  font-size: 34px;
  border: none;
  padding: 8px 16px;
  margin-left: 12px;
  cursor: pointer;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
  z-index: 101;
}
.mobile-menu-toggle:focus,
.mobile-menu-toggle:hover {
  background: var(--color-secondary);
  color: #222831;
}

/* ===============
   MOBILE MENU
   =============== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--color-bg-dark);
  box-shadow: 0 0 64px 0 rgba(16,33,48, 0.65);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding-top: 32px;
  transform: translateX(100%);
  transition: transform var(--transition);
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu-close {
  align-self: flex-end;
  background: none;
  color: var(--color-accent);
  border: none;
  font-size: 34px;
  cursor: pointer;
  padding: 12px 18px;
  margin-bottom: 18px;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}
.mobile-menu-close:focus,
.mobile-menu-close:hover {
  background: var(--color-secondary);
  color: #181d23;
}
.mobile-nav {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.mobile-nav a {
  display: block;
  font-family: 'Oswald', Arial, sans-serif;
  color: #e3e7eb;
  font-size: 22px;
  padding: 20px 36px;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:focus,
.mobile-nav a:hover {
  background: var(--color-secondary);
  color: #232831;
}

/* ===============
   SECTION CARDS, LISTS, ETC.
   =============== */
.card, .case-study-list li, .service-list li, .text-section, .map-container {
  box-shadow: var(--shadow-card);
  background: var(--color-card);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 24px;
  border: 1.2px solid var(--color-border);
}
.case-study-list,
.service-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 12px;
  margin-bottom: 20px;
}
.case-study-list li,
.service-list li {
  background: var(--color-card);
  color: #dee6ee;
  font-size: 17px;
}
.text-section {
  background: transparent;
  border: 0;
  box-shadow: none;
  color: #dbe2e9;
  padding: 0 4px 0 0;
}
.map-container {
  background: var(--color-bg-dark);
  border: 1.2px solid var(--color-border);
  border-radius: 12px;
  align-items: center;
  display: flex;
  gap: 18px;
  padding: 14px 16px;
  margin-top: 10px;
}
.map-container img {
  width: 32px;
  height: 32px;
  margin-right: 6px;
}

/* ================
   FOOTER
   ================ */
footer {
  background: var(--color-footer);
  color: #cfd4da;
  padding: 32px 0 18px 0;
  border-top: 2px solid var(--color-metal);
  box-shadow: 0 -2px 18px 0 rgba(21,65,108,.06);
}
footer .container {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
  justify-content: space-between;
}
.footer-nav {
  display: flex;
  flex-direction: row;
  gap: 28px;
  margin-bottom: 16px;
}
.footer-nav a {
  color: #d7e0e7;
  font-family: 'Oswald',Arial,sans-serif;
  font-size: 14px;
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.footer-nav a:focus,
.footer-nav a:hover {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-accent);
}
.footer-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  font-size: 15px;
  color: #c2cad3;
}
.footer-info ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-info li {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
}
.footer-info img {
  width: 20px;
  height: 20px;
  filter: grayscale(40%) brightness(1.1);
}

/* ======================
   COOKIE CONSENT & MODAL
   ====================== */
.cookie-banner {
  position: fixed;
  left: 0; right: 0;
  bottom: 0;
  width: 100vw;
  background: var(--color-card);
  color: #f6f8fa;
  border-top: 2px solid var(--color-secondary);
  box-shadow: 0 -2px 16px 0 rgba(21,65,108,0.14);
  padding: 19px 16px 19px 16px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 24px;
  z-index: 400;
  transition: transform var(--transition), opacity var(--transition);
  opacity: 1;
  transform: translateY(0);
}
.cookie-banner.hide {
  opacity: 0;
  transform: translateY(120%);
  pointer-events: none;
}
.cookie-banner p {
  margin: 0;
  padding: 0;
  font-size: 15px;
}
.cookie-actions {
  display: flex;
  gap: 14px;
  margin-left: 16px;
}
.cookie-btn {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 15px;
  border: none;
  border-radius: 8px;
  padding: 8px 22px;
  background: var(--color-secondary);
  color: #181d23;
  cursor: pointer;
  font-weight: 700;
  margin: 0 2px;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 8px rgba(62,188,160,0.05);
}
.cookie-btn.settings {
  background: var(--color-accent);
  color: var(--color-footer);
}
.cookie-btn.reject {
  background: #242931;
  color: var(--color-secondary);
  border: 1.2px solid var(--color-secondary);
}
.cookie-btn:hover,
.cookie-btn:focus {
  background: var(--color-accent);
  color: #232831;
}
.cookie-btn.settings:hover,
.cookie-btn.settings:focus {
  background: var(--color-secondary);
  color: #10161c;
}
.cookie-btn.reject:hover,
.cookie-btn.reject:focus {
  background: #181d23;
  color: var(--color-accent);
}
/* Cookie preferences modal */
.cookie-modal {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(16, 22, 28, 0.87);
  z-index: 401;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition);
  padding: 24px 10px;
}
.cookie-modal.open {
  display: flex;
}
.cookie-modal-content {
  background: var(--color-surface);
  color: #eff4fa;
  border-radius: 14px;
  max-width: 370px;
  width: 100%;
  padding: 34px 30px 23px 30px;
  box-shadow: 0 8px 48px 0 rgba(21,65,108,0.23);
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.cookie-modal-content h2 {
  margin-bottom: 1px;
  font-size: 22px;
  color: var(--color-accent);
}
.cookie-category {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
}
.cookie-category:last-child {
  border-bottom: none;
}
.cookie-toggle {
  width: 42px;
  height: 22px;
  display: flex;
  align-items: center;
  background: #232831;
  border-radius: 14px;
  cursor: pointer;
  position: relative;
  margin-left: 8px;
  border: 1.5px solid var(--color-metal);
  transition: border var(--transition), background var(--transition);
}
.cookie-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.cookie-switch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 1px 3px rgba(25,25,38,0.17);
  position: absolute;
  left: 2px;
  top: 1.5px;
  transition: left var(--transition), background var(--transition);
}
.cookie-toggle input:checked + .cookie-switch {
  left: 22px;
  background: var(--color-secondary);
}
.cookie-modal-actions {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
}

/* ===================
   RESPONSIVE DESIGN
   =================== */
@media (max-width: 1024px) {
  .container {
    max-width: 98vw;
  }
  .main-nav {
    gap: 16px;
  }
}
@media (max-width: 900px) {
  .footer-nav {
    gap: 14px;
    flex-wrap: wrap;
  }
  header .container {
    flex-wrap: wrap;
    gap: 8px;
  }
}
@media (max-width: 768px) {
  body {
    font-size: 15px;
  }
  .section {
    padding: 28px 8px;
    margin-bottom: 34px;
  }
  .main-nav {
    display: none !important;
  }
  .cta-button {
    padding: 12px 22px;
    font-size: 16px;
  }
  header .container {
    padding: 14px 8px 10px 8px;
    gap: 6px;
  }
  .mobile-menu-toggle {
    display: inline-block;
  }
  .content-wrapper {
    gap: 12px;
    align-items: stretch;
  }
  .testimonial-card {
    padding: 14px 10px;
    font-size: 16px;
  }
  .testimonial-meta {
    font-size: 15px;
  }
  .feature-grid, .card-container, .card-grid, .content-grid {
    flex-direction: column;
    gap: 18px;
  }
  .footer-info {
    align-items: flex-start;
    font-size: 14px;
  }
  .footer-nav {
    flex-direction: column;
    gap: 8px;
  }
  .text-image-section {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .feature-item {
    padding: 16px 11px;
    font-size: 15px;
    min-width: 0;
    max-width: 100%;
  }
}
@media (max-width: 500px) {
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
  h3, h4 { font-size: 15px; }
  .cta-button { font-size: 14px; }
  .section { padding: 14px 2px; }
}

/* ================
   MICRO-INTERACTIONS
   ================ */
.cta-button, .feature-item, .testimonial-card, .card {
  transition: box-shadow 0.22s cubic-bezier(.5,0,.3,1), background 0.19s, transform 0.19s;
}

/* ================
   UTILITY CLASSES
   ================ */
.hide { display: none !important; }
.mt-32 { margin-top:32px !important; }
.mt-16 { margin-top:16px !important; }
.mb-16 { margin-bottom:16px !important; }
.mb-32 { margin-bottom:32px !important; }
.mx-auto { margin-left:auto; margin-right:auto; }
.text-center { text-align:center !important; }

/* ================
   Z-INDEX HELPERS
   ================ */
.z-10 { z-index:10 !important; }
.z-50 { z-index:50 !important; }
.z-100 { z-index:100 !important; }

/* ===== BUTTONS (GENERIC) ==== */
button, .button {
  font-family: 'Oswald',Arial,sans-serif;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  border-radius: 8px;
  padding: 10px 22px;
  background: var(--color-secondary);
  color: #181d23;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}
button:hover, button:focus,
.button:hover, .button:focus {
  background: var(--color-accent);
  color: var(--color-footer);
}

/* ==== SITE COLOR OVERRIDES FOR ACCENTS ==== */
hr {
  border: none;
  border-top: 1.5px solid var(--color-border);
  margin: 16px 0;
}

/* ================
   FORMS (if needed)
   ================ */
input, textarea, select {
  font-family: 'Roboto', Arial, sans-serif;
  background: #282f38;
  color: #e3e7eb;
  border: 1.2px solid var(--color-metal);
  border-radius: 8px;
  padding: 12px 12px;
  font-size: 16px;
  transition: border var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-secondary);
  outline: none;
  box-shadow: 0 2px 8px rgba(62,188,160,0.13);
}

/* === ICONS === */
img[alt^="icon-"] {
  filter: grayscale(40%) brightness(1.12) drop-shadow(0 2px 10px rgba(21,65,108,0.07));
}

/* ================
   FINAL CHECKS
   ================ */
/* All flex layouts - no grid or columns used. No absolute positioning for main cards/text. White space and gaps applied. Proper stacking for overlays and mobile menu. Cards, testimonials, and footer have sufficient contrast. No element overlap. Mobile menu & cookie banner animation and appearance included. */