/* ========================================
   Argus Website Styles - LIGHT THEME
   Mobile-first responsive design
   ======================================== */

/* ----------------------------------------
   CSS Custom Properties (Colour Palette)
   ---------------------------------------- */
:root {
  /* Background colours - LIGHT THEME */
  --color-charcoal: #ffffff;
  --color-dark-grey: #f5f5f5;
  --color-slate: #e8e8e8;

  /* Accent colours */
  --color-brick: #a33b2e;
  --color-brick-light: #c45a4a;
  --color-brick-dark: #7a2d23;
  --color-teal: #2a9d8f;
  --color-teal-dark: #1f7a6f;

  /* Text colours - INVERTED */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #808080;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  --font-size-5xl: 48px;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 70px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family);
  background-color: var(--color-charcoal);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-teal-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brick);
}

/* ----------------------------------------
   Typography
   ---------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 600;
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

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

.section {
  padding: var(--spacing-2xl) 0;
}

.section--alt {
  background-color: var(--color-dark-grey);
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-width: 44px;
  min-height: 44px;
}

.btn--primary {
  background-color: var(--color-brick);
  color: #ffffff;
}

.btn--primary:hover {
  background-color: var(--color-brick-light);
  color: #ffffff;
}

.btn--primary:active {
  background-color: var(--color-brick-dark);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-text-primary);
}

.btn--secondary:hover {
  background-color: var(--color-text-primary);
  color: var(--color-charcoal);
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

/* ----------------------------------------
   Header & Navigation
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: background-color var(--transition-base);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-sm);
  max-width: var(--max-width);
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.header__logo-img {
  height: 69px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.header__logo:hover .header__logo-img {
  opacity: 0.8;
}

/* Mobile menu toggle */
.header__menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.header__menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Navigation */
.nav {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-charcoal);
  padding: var(--spacing-sm);
  border-top: 1px solid var(--color-slate);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nav.active {
  display: block;
}

.nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav__link {
  display: block;
  padding: var(--spacing-sm);
  color: var(--color-text-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-teal-dark);
}

.nav__cta {
  margin-top: var(--spacing-sm);
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-sm) var(--spacing-lg);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* Subtle pattern overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 157, 143, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 157, 143, 0.08) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
}

.hero__content {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero__headline {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.hero__subheadline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.hero__cta {
  margin-bottom: var(--spacing-xl);
}

/* Social proof strip */
.hero__social-proof {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-slate);
}

.hero__social-proof-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero__logos span {
  color: var(--color-text-muted);
}

/* ----------------------------------------
   Pain Section
   ---------------------------------------- */
.pain {
  background-color: var(--color-dark-grey);
}

.pain__content {
  max-width: 720px;
}

.pain__heading {
  color: var(--color-brick);
}

.pain__body p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.pain__body p:last-child {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ----------------------------------------
   Bridge Section
   ---------------------------------------- */
.bridge {
  background: linear-gradient(135deg, var(--color-charcoal) 0%, #f0f4f4 100%);
}

.bridge__content {
  max-width: 720px;
}

.bridge__heading {
  color: var(--color-teal-dark);
}

.bridge__body p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.bridge__body p:last-child {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ----------------------------------------
   Solution Section
   ---------------------------------------- */
.solution {
  background-color: var(--color-dark-grey);
}

.solution__content {
  max-width: 720px;
}

.solution__heading {
  color: var(--color-text-primary);
}

.solution__body p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.solution__body p:last-child {
  font-weight: 600;
  color: var(--color-teal-dark);
}

/* ----------------------------------------
   At a Glance Section (Feature Cards)
   ---------------------------------------- */
.features {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-charcoal) 0%, var(--color-dark-grey) 100%);
}

.features__intro {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.feature-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: var(--spacing-lg);
  position: relative;
  border: 1px solid var(--color-slate);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  border-color: var(--color-teal);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-teal-dark);
  margin-bottom: var(--spacing-sm);
  transition:
    transform var(--transition-base),
    color var(--transition-base);
}

.feature-card:hover .feature-card__icon {
  transform: scale(1.15);
  color: var(--color-brick);
}

.feature-card__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.feature-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

/* ----------------------------------------
   About Section
   ---------------------------------------- */
.about {
  background-color: var(--color-dark-grey);
}

.about__content {
  max-width: 720px;
}

.about__heading {
  color: var(--color-text-primary);
}

.about__body p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.about__signoff {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-slate);
}

.about__signoff-names {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.about__signoff-title {
  color: var(--color-text-secondary);
}

/* ----------------------------------------
   CTA Section
   ---------------------------------------- */
.cta-section {
  text-align: center;
  position: relative;
  background: linear-gradient(135deg, #2a9d8f 0%, #1f7a6f 100%);
}

.cta-section__content {
  max-width: 600px;
  margin: 0 auto;
}

.cta-section__heading {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: #ffffff;
}

.cta-section__body {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.9);
}

/* Contact Form */
.contact-form {
  max-width: 500px;
  margin: 0 auto;
  text-align: left;
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.9);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  font-size: var(--font-size-base);
  font-family: inherit;
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-brick);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
  margin-top: var(--spacing-sm);
  background-color: var(--color-brick);
}

.contact-form .btn:hover {
  background-color: var(--color-brick-light);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
  background-color: #1a1a1a;
  padding: var(--spacing-xl) 0;
  border-top: 1px solid #2d2d2d;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer__brand {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: #f5f5f5;
  margin-bottom: var(--spacing-xs);
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: #808080;
  font-style: italic;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__link {
  color: #b0b0b0;
  font-size: var(--font-size-sm);
}

.footer__link:hover {
  color: var(--color-teal);
}

.footer__bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid #2d2d2d;
  font-size: var(--font-size-sm);
  color: #808080;
}

/* ----------------------------------------
   Responsive: Tablet (768px+)
   ---------------------------------------- */
@media (min-width: 768px) {
  :root {
    --font-size-3xl: 40px;
    --font-size-4xl: 48px;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .section {
    padding: var(--spacing-3xl) 0;
  }

  .hero {
    padding: calc(var(--header-height) + var(--spacing-xl)) var(--spacing-lg) var(--spacing-xl);
  }

  .hero__headline {
    font-size: var(--font-size-4xl);
  }

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

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

/* ----------------------------------------
   Responsive: Desktop (1024px+)
   ---------------------------------------- */
@media (min-width: 1024px) {
  :root {
    --font-size-3xl: 48px;
    --font-size-4xl: 56px;
    --font-size-5xl: 64px;
  }

  /* Desktop navigation */
  .header__menu-toggle {
    display: none;
  }

  .nav {
    display: block;
    position: static;
    background: none;
    padding: 0;
    border: none;
    box-shadow: none;
  }

  .nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-lg);
  }

  .nav__link {
    padding: var(--spacing-xs) 0;
  }

  .nav__cta {
    margin-top: 0;
    margin-left: var(--spacing-sm);
  }

  .hero__headline {
    font-size: var(--font-size-5xl);
  }

  .hero__subheadline {
    font-size: var(--font-size-xl);
  }

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

  .cta-section__heading {
    font-size: var(--font-size-3xl);
  }
}

/* ----------------------------------------
   AOS Animation Overrides
   ---------------------------------------- */
[data-aos] {
  pointer-events: auto !important;
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.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;
}

.text-teal {
  color: var(--color-teal-dark);
}

.text-brick {
  color: var(--color-brick);
}

/* ----------------------------------------
   Cookie Consent Banner
   ---------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-top: 1px solid var(--color-slate);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-md);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.cookie-banner--visible {
  transform: translateY(0);
}

.cookie-banner__content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
  text-align: center;
}

.cookie-banner__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.cookie-banner__link {
  color: var(--color-teal-dark);
  text-decoration: underline;
}

.cookie-banner__buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.cookie-banner__btn {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cookie-banner__btn--accept {
  background-color: var(--color-teal-dark);
  color: #ffffff;
}

.cookie-banner__btn--accept:hover {
  background-color: var(--color-teal);
}

.cookie-banner__btn--decline {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-slate);
}

.cookie-banner__btn--decline:hover {
  background-color: var(--color-slate);
  color: var(--color-text-primary);
}

@media (min-width: 768px) {
  .cookie-banner__content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}