/* StratusG Design Tokens & Styles */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* LIGHT MODE (default) */
:root, [data-theme="light"] {
  /* Navy Corporate Palette */
  --color-bg:             #f6f9fc;
  --color-surface:        #ffffff;
  --color-surface-2:      #eef3f9;
  --color-surface-offset: #e4ecf4;
  --color-divider:        #d5dbe3;
  --color-border:         #c8d0da;

  --color-text:           #0f1b2d;
  --color-text-muted:     #5a6678;
  --color-text-faint:     #9aa5b4;
  --color-text-inverse:   #f8f9fb;

  /* StratusG Blue (from logo globe) */
  --color-primary:        #0072C7;
  --color-primary-hover:  #005fa6;
  --color-primary-active: #004d88;

  /* StratusG Cyan (from logo globe highlights) */
  --color-accent:         #00A5E1;
  --color-accent-hover:   #008fc4;
  --color-accent-active:  #007aaa;

  /* StratusG Green (from logo swoosh) */
  --color-success:        #139C49;
  --color-success-hover:  #0f7d3a;

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 240 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 240 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 240 / 0.12);
}

/* DARK MODE */
[data-theme="dark"] {
  --color-bg:             #0c1420;
  --color-surface:        #111b2b;
  --color-surface-2:      #162236;
  --color-surface-offset: #1a2840;
  --color-divider:        #1e2f4a;
  --color-border:         #2a3d5a;

  --color-text:           #d4dce8;
  --color-text-muted:     #8494aa;
  --color-text-faint:     #5a6b82;
  --color-text-inverse:   #0f1b2d;

  --color-primary:        #3aabef;
  --color-primary-hover:  #5bbdf5;
  --color-primary-active: #2899dc;

  --color-accent:         #4dd0f5;
  --color-accent-hover:   #6edcf9;
  --color-accent-active:  #35c0e8;

  --color-success:        #3fc06a;
  --color-success-hover:  #2eaa56;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0c1420;
    --color-surface:        #111b2b;
    --color-surface-2:      #162236;
    --color-surface-offset: #1a2840;
    --color-divider:        #1e2f4a;
    --color-border:         #2a3d5a;
    --color-text:           #d4dce8;
    --color-text-muted:     #8494aa;
    --color-text-faint:     #5a6b82;
    --color-text-inverse:   #0f1b2d;
    --color-primary:        #3aabef;
    --color-primary-hover:  #5bbdf5;
    --color-primary-active: #2899dc;
    --color-accent:         #4dd0f5;
    --color-accent-hover:   #6edcf9;
    --color-accent-active:  #35c0e8;
    --color-success:        #3fc06a;
    --color-success-hover:  #2eaa56;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ====================== GLOBAL LAYOUT ====================== */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--narrow {
  max-width: var(--content-default);
}

/* ====================== HEADER ====================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: var(--content-wide);
  margin-inline: auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo-full {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}

.footer__logo-full {
  height: 36px;
  width: auto;
  flex-shrink: 0;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.header__logo-text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

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

.header__tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: none;
}

@media (min-width: 768px) {
  .header__tagline { display: block; }
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .header__nav { display: flex; }
}

.header__nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-interactive);
}

.header__nav a:hover {
  color: var(--color-text);
}

.header__nav a.active {
  color: var(--color-accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__phone {
  display: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
}

@media (min-width: 768px) {
  .header__phone { display: block; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background: var(--color-surface-2);
  box-shadow: var(--shadow-sm);
}

.btn--lg {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
}

.btn--dark {
  background: var(--color-primary);
  color: #fff;
}

.btn--dark:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}

@media (min-width: 1024px) {
  .mobile-menu-btn { display: none; }
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  background: var(--color-bg);
  padding: var(--space-16) var(--space-6);
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
}

.mobile-nav__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

/* Theme Toggle */
.theme-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* ====================== HERO ====================== */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    oklch(0.18 0.08 240 / 0.90) 0%,
    oklch(0.22 0.08 240 / 0.72) 50%,
    oklch(0.16 0.06 240 / 0.85) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-20) var(--space-4);
}

.hero__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  opacity: 0.9;
}

[data-theme="dark"] .hero__label {
  color: var(--color-accent);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: #fff;
  max-width: 16ch;
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero__desc {
  font-size: var(--text-base);
  color: oklch(0.85 0 0);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-10);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid oklch(1 0 0 / 0.12);
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: #fff;
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: oklch(0.7 0 0);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-1);
}

/* ====================== SECTIONS ====================== */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.section--alt {
  background: var(--color-surface-2);
}

.section--dark {
  background: var(--color-primary);
  color: #fff;
}

.section__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section--dark .section__title {
  color: #fff;
}

.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
}

.section--dark .section__desc {
  color: oklch(0.8 0 0);
}

/* ====================== SERVICES GRID ====================== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-10);
}

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

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive),
              border-color var(--transition-interactive);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text);
  display: block;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: oklch(from var(--color-accent) l c h / 0.3);
}

.service-card:active {
  transform: translateY(0);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-top: var(--space-4);
}

/* ====================== ABOUT ROW ====================== */
.about-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 768px) {
  .about-row {
    grid-template-columns: 1fr 1fr;
  }
}

.about-row__img {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-row__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

.about-row__content h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.about-row__content p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

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

.about-value {
  text-align: center;
  padding: var(--space-4) var(--space-2);
}

.about-value__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
}

.about-value__text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: var(--space-1);
}

/* ====================== INDUSTRIES ====================== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

@media (min-width: 768px) {
  .industries-grid { grid-template-columns: repeat(4, 1fr); }
}

.industry-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.industry-item__icon {
  width: 36px;
  height: 36px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.industry-item__text {
  font-size: var(--text-sm);
  font-weight: 500;
}

/* ====================== TESTIMONIAL ====================== */
.testimonial {
  position: relative;
  padding: var(--space-16) var(--space-4);
  text-align: center;
  background: var(--color-primary);
}

.testimonial__quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: #fff;
  max-width: 50ch;
  margin: 0 auto var(--space-6);
  line-height: 1.4;
}

.testimonial__author {
  font-size: var(--text-sm);
  color: oklch(0.7 0 0);
}

/* ====================== CLIENTS ====================== */
.clients-section { padding: clamp(var(--space-12), 8vw, var(--space-24)) 0; }

.clients-category {
  margin-bottom: var(--space-10);
}

.clients-category__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.clients-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.client-tag {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ====================== CTA BANNER ====================== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #004d88 100%);
  padding: var(--space-16) var(--space-4);
  text-align: center;
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: #fff;
  margin-bottom: var(--space-4);
}

.cta-banner p {
  font-size: var(--text-base);
  color: oklch(0.8 0 0);
  max-width: 50ch;
  margin: 0 auto var(--space-8);
}

/* ====================== CONTACT ====================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

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

.contact-info { display: flex; flex-direction: column; gap: var(--space-6); }

.contact-info__item {
  display: flex;
  gap: var(--space-4);
}

.contact-info__icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: var(--space-1);
}

.contact-info__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
}

.contact-info__value {
  font-size: var(--text-base);
  color: var(--color-text);
}

.contact-info__value a {
  color: var(--color-text);
  text-decoration: none;
}

.contact-info__value a:hover {
  color: var(--color-accent);
}

.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px oklch(from var(--color-accent) l c h / 0.12);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ====================== SERVICE DETAIL ====================== */
.service-detail {
  display: none;
}

.service-detail.active {
  display: block;
}

.service-detail__hero {
  position: relative;
  padding: var(--space-16) 0;
  overflow: hidden;
}

.service-detail__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, #004d88 100%);
  z-index: 0;
}

.service-detail__hero .container {
  position: relative;
  z-index: 1;
}

.service-detail__hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: #fff;
  margin-bottom: var(--space-3);
}

.service-detail__hero p {
  font-size: var(--text-base);
  color: oklch(0.8 0 0);
  max-width: 60ch;
}

.service-detail__body {
  padding: var(--space-12) 0;
}

.service-detail__body .container--narrow {
  max-width: 800px;
}

.service-detail__body h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.service-detail__body h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--color-accent);
}

.service-detail__body p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.service-detail__body ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-6);
}

.service-detail__body li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.service-detail__body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: oklch(0.8 0 0);
  text-decoration: none;
  margin-bottom: var(--space-6);
  transition: color var(--transition-interactive);
}

.back-link:hover { color: #fff; }

/* ====================== FOOTER ====================== */
.footer {
  background: var(--color-primary);
  color: oklch(0.9 0 0);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

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

.footer__brand-desc {
  font-size: var(--text-sm);
  color: oklch(0.82 0.02 220);
  margin-top: var(--space-4);
  max-width: 30ch;
  line-height: 1.6;
}

.footer h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__links a {
  font-size: var(--text-sm);
  color: oklch(0.82 0.02 220);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__links a:hover { color: #fff; }

.footer__bottom {
  padding-top: var(--space-6);
  border-top: 1px solid oklch(1 0 0 / 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: oklch(0.72 0.02 220);
}



.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: oklch(0.82 0.02 220);
  border: 1px solid oklch(1 0 0 / 0.15);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.footer__social a:hover {
  color: #fff;
  background: oklch(1 0 0 / 0.1);
}

/* ====================== WHITEPAPERS ====================== */
.whitepapers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

.whitepaper-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}

.whitepaper-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.whitepaper-card__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.whitepaper-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.whitepaper-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  flex: 1;
}

.whitepaper-card__btn {
  align-self: flex-start;
}

/* Press Cards */
.press-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

.press-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}

.press-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.press-card__badge {
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.press-card__pub {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  display: block;
}

.press-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.press-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  flex: 1;
}

.press-card__btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
}

/* Whitepaper Modal */
.wp-modal-overlay {
  position: fixed;
  inset: 0;
  background: oklch(0.1 0 0 / 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
  padding: var(--space-4);
}

.wp-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.wp-modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  width: 100%;
  max-width: 520px;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform 250ms ease;
}

.wp-modal-overlay.open .wp-modal {
  transform: translateY(0);
}

.wp-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-interactive);
}

.wp-modal__close:hover {
  color: var(--color-text);
}

.wp-modal__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
  padding-right: var(--space-8);
}

.wp-modal__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.wp-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .wp-form-grid { grid-template-columns: 1fr; }
}

.wp-form-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.wp-form-field label .required {
  color: #e74c3c;
}

.wp-form-field input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  transition: border-color var(--transition-interactive);
}

.wp-form-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px oklch(from var(--color-accent) l c h / 0.15);
}

/* ====================== PAGE SECTIONS (hidden by default) ====================== */
.page { display: none; }
.page.active { display: block; }

/* ====================== SCROLL REVEAL ====================== */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade { to { opacity: 1; } }

/* ====================== GxP LIST ====================== */
.gxp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

@media (min-width: 768px) {
  .gxp-grid { grid-template-columns: repeat(4, 1fr); }
}

.gxp-item {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  text-align: center;
}

.gxp-item__abbr {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.gxp-item__name {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Biotechforce features */
.btf-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

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

.btf-feature {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.btf-feature h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.btf-feature p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}