/*
 * Phorma Scientific - Main Stylesheet
 * Architecture: Mobile-First, Zero-Bloat
 * Philosophy: Structure over Chaos
 */

/* ==========================================
   CSS RESET & BASE FOUNDATION
   ========================================== */

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

:root {
  /* Light Theme Colors */
  --color-bg: #FFFFFF;
  --color-fg: #000000;
  --color-border: #000000;
  --color-grey: #E5E5E5;
  --color-grey-dark: #333333;
  --color-muted: #666666;

  /* Legacy color names (for backwards compatibility) */
  --color-black: #000000;
  --color-white: #FFFFFF;

  /* Typography Scale */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;

  /* Spacing System (8px base) */
  --space-xs: 0.5rem;   /* 8px */
  --space-sm: 1rem;     /* 16px */
  --space-md: 2rem;     /* 32px */
  --space-lg: 3rem;     /* 48px */
  --space-xl: 4rem;     /* 64px */
  --space-xxl: 6rem;    /* 96px */

  /* Layout */
  --max-width: 1200px;
  --border-radius: 2px;
  --border-width: 1px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #0a0a0a;
  --color-fg: #FFFFFF;
  --color-border: #FFFFFF;
  --color-grey: #1a1a1a;
  --color-grey-dark: #cccccc;
  --color-muted: #999999;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-fg);
  background-color: var(--color-bg);
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-sm);
  max-width: 65ch;
}

a {
  color: var(--color-fg);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.6;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-grey);
  padding: 0.125rem 0.375rem;
  border-radius: var(--border-radius);
}

/* ==========================================
   LAYOUT PRIMITIVES
   ========================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
}

.section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-xxl);
    padding-bottom: var(--space-xxl);
  }
}

/* ==========================================
   NAVIGATION
   ========================================== */

.nav {
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--space-sm) 0;
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.nav-menu a {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
}

.nav-menu a:hover,
.nav-menu a.active {
  border-bottom-color: var(--color-border);
  opacity: 1;
}

/* Language Switcher */
.nav-menu .lang-switch {
  margin-left: var(--space-sm);
  padding-left: var(--space-sm);
  border-left: var(--border-width) solid var(--color-grey);
}

.nav-menu .lang-switch a {
  font-weight: 700;
  padding: var(--space-xs) var(--space-sm);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg);
  transition: all var(--transition-fast);
}

.nav-menu .lang-switch a:hover {
  background: var(--color-fg);
  color: var(--color-bg);
  border-bottom-color: var(--color-border);
}

/* Theme Toggle */
.theme-toggle {
  margin-left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-fg);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: var(--color-fg);
  color: var(--color-bg);
  transform: rotate(180deg);
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: var(--border-width) solid var(--color-border);
  color: var(--color-fg);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

@media (max-width: 767px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: var(--border-width) solid var(--color-border);
    flex-direction: column;
    gap: 0;
    padding: var(--space-sm);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-menu li {
    border-bottom: var(--border-width) solid var(--color-grey);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu a {
    display: block;
    padding: var(--space-sm) 0;
  }
}

/* ==========================================
   BUTTONS & CTA
   ========================================== */

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.btn:hover {
  background: var(--color-fg);
  color: var(--color-bg);
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 4px 4px 0 var(--color-border);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 2px 2px 0 var(--color-border);
}

.btn-primary {
  background: var(--color-fg);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: var(--color-bg);
  color: var(--color-fg);
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-bottom: var(--border-width) solid var(--color-border);
  position: relative;
}

.hero-content {
  max-width: 900px;
}

.hero-logo {
  width: 120px;
  height: auto;
  margin-bottom: var(--space-md);
  animation: fadeIn var(--transition-slow) ease-out;
}

.hero h1 {
  animation: fadeIn var(--transition-slow) 0.2s ease-out;
}

.hero-subheading {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-grey-dark);
  margin-bottom: var(--space-lg);
  animation: fadeIn var(--transition-slow) 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   GRID SYSTEM
   ========================================== */

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

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

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ==========================================
   CARD COMPONENTS
   ========================================== */

.card {
  border: var(--border-width) solid var(--color-border);
  padding: var(--space-md);
  background: var(--color-bg);
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--color-border);
}

.card-header {
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: var(--border-width) solid var(--color-grey);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-grey-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  margin-bottom: var(--space-sm);
}

.card-footer {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: var(--border-width) solid var(--color-grey);
}

/* ==========================================
   AUTHORITY LOGOS
   ========================================== */

.authority-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  align-items: center;
  justify-items: center;
}

.authority-logo {
  opacity: 0.4;
  transition: opacity var(--transition-fast);
  filter: grayscale(100%);
  max-width: 120px;
  height: auto;
}

.authority-logo:hover {
  opacity: 1;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
  border-top: var(--border-width) solid var(--color-border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xxl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-grey-dark);
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.text-center {
  text-align: center;
}

.text-mono {
  font-family: var(--font-mono);
}

.text-upper {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.border-top {
  border-top: var(--border-width) solid var(--color-border);
  padding-top: var(--space-md);
}

.border-bottom {
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--space-md);
}

/* Highlight Box */
.highlight-box {
  background: var(--color-grey);
  border-left: 4px solid var(--color-border);
  padding: var(--space-md);
  margin: var(--space-md) 0;
}

/* List Styling */
ul.styled-list {
  list-style: none;
  padding-left: 0;
}

ul.styled-list li {
  padding-left: var(--space-md);
  position: relative;
  margin-bottom: var(--space-xs);
}

ul.styled-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
}

/* ==========================================
   FORM ELEMENTS
   ========================================== */

.contact-form {
  width: 100%;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  color: var(--color-fg);
}

.form-input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: var(--space-sm);
  border: var(--border-width) solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-border);
  box-shadow: 0 0 0 2px var(--color-border);
}

.form-input:hover {
  background: var(--color-grey);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-sans);
  line-height: 1.6;
}

select.form-input {
  cursor: pointer;
  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='%23000000' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-sm) center;
  padding-right: var(--space-lg);
}

.form-input::placeholder {
  color: var(--color-grey-dark);
  opacity: 0.6;
}

/* Form Checkbox Styling */
.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.5;
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg-alt);
  transition: all var(--transition-fast);
}

.form-checkbox-label:hover {
  background: var(--color-grey);
  border-color: var(--color-fg);
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
  flex-shrink: 0;
}

.form-checkbox-label span {
  flex: 1;
}

/* ==========================================
   TEAM MEMBER PROFILES
   ========================================== */

.team-grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.team-member {
  border: var(--border-width) solid var(--color-border);
  padding: var(--space-md);
  background: var(--color-bg);
  transition: all var(--transition-base);
}

.team-member:hover {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--color-border);
}

.team-member-header {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: var(--border-width) solid var(--color-grey);
}

.team-member-name {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-xs);
}

.team-member-title {
  font-size: 0.875rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.team-member-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.team-member-bio {
  font-size: 1rem;
  line-height: 1.6;
  max-width: none;
}

.team-member-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.team-member-subtitle {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  margin-bottom: 0;
}

.team-member-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.team-member-list li {
  padding-left: var(--space-md);
  position: relative;
  margin-bottom: var(--space-xs);
  line-height: 1.6;
}

.team-member-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  color: var(--color-muted);
}

.team-member-footer {
  margin-top: var(--space-sm);
  padding-top: var(--space-md);
  border-top: var(--border-width) solid var(--color-grey);
}

.team-member-link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-fast);
}

.team-member-link:hover {
  opacity: 0.6;
  transform: translateX(4px);
}