/* =========================================================
   Crestova Product Supply LLC
   styles.css
   Mobile-first, accessible, static-site friendly
   ========================================================= */

/* =========================
   CSS Variables
   ========================= */
:root {
  --color-navy: #0b2239;
  --color-teal: #126b67;
  --color-white: #ffffff;
  --color-bg: #f5f7f8;
  --color-surface: #ffffff;
  --color-border: #d7dee4;
  --color-text: #1f2d3a;
  --color-text-muted: #5d6873;
  --color-heading: #0b2239;
  --color-shadow: rgba(11, 34, 57, 0.08);
  --color-shadow-strong: rgba(11, 34, 57, 0.16);
  --color-focus: #126b67;

  --font-sans: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 0.625rem;
  --radius-md: 1rem;
  --radius-lg: 1.25rem;

  --shadow-sm: 0 0.5rem 1.25rem var(--color-shadow);
  --shadow-md: 0 1rem 2rem var(--color-shadow);

  --container-width: 70rem;
  --container-narrow: 50rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 5rem;

  --transition-fast: 180ms ease;
  --transition-medium: 280ms ease;
}

/* =========================
   Base / Reset
   ========================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

img,
svg {
  max-width: 100%;
  display: block;
}

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

a:hover {
  text-decoration: underline;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

::selection {
  background: rgba(18, 107, 103, 0.18);
}

/* =========================
   Global Layout
   ========================= */
.container {
  width: min(100% - 2rem, var(--container-width));
  margin-inline: auto;
}

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

.section {
  padding: var(--space-8) 0;
}

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

.section-kicker,
.eyebrow {
  margin: 0 0 var(--space-3);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.section-heading {
  margin-bottom: var(--space-6);
}

.section-heading p {
  max-width: 42rem;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-4);
  line-height: 1.2;
  color: var(--color-heading);
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-text);
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* =========================
   Skip Link
   ========================= */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

/* =========================
   Header
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(215, 222, 228, 0.8);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.75rem;
  padding: 0.875rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--color-heading);
  min-width: 0;
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: clamp(12rem, 50vw, 15rem);
  height: auto;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.header-contact {
  white-space: nowrap;
}

.site-nav {
  width: 100%;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-top: var(--space-2);
}

.nav-list a {
  display: block;
  padding: 0.75rem 0.25rem;
  color: var(--color-heading);
  font-weight: 600;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-teal);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 0.375rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-heading);
}

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

.menu-toggle-text {
  font-size: 0.95rem;
  font-weight: 700;
}

.menu-icon {
  display: inline-block;
  font-size: 1.35rem;
  line-height: 1;
  font-weight: 700;
}

/* Enhanced mobile nav only when JS is available */
body.nav-ready .menu-toggle {
  display: inline-flex;
}

body.nav-ready .site-nav {
  display: none;
}

body.nav-ready .site-nav.is-open {
  display: block;
}

/* =========================
   Buttons
   ========================= */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.9rem;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  background: var(--color-teal);
  color: var(--color-white);
  box-shadow: 0 0.5rem 1rem rgba(18, 107, 103, 0.15);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #0f5c58;
  color: var(--color-white);
}

.button-secondary {
  background: transparent;
  color: var(--color-heading);
  border-color: var(--color-border);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--color-white);
  color: var(--color-heading);
  border-color: var(--color-teal);
}

.button-small {
  min-height: 2.6rem;
  padding: 0.7rem 0.95rem;
}

/* =========================
   Hero
   ========================= */
.hero {
  background:
    radial-gradient(circle at top right, rgba(18, 107, 103, 0.14), transparent 32%),
    var(--color-navy);
  color: var(--color-white);
  overflow: clip;
}

.hero h1,
.hero p,
.hero a,
.hero .eyebrow {
  color: var(--color-white);
}

.hero-grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.hero-copy {
  max-width: 38rem;
}

.hero-text {
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.hero .button-secondary {
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.06);
}

.hero .button-secondary:hover,
.hero .button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.36);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.visual-card {
  width: min(100%, 26rem);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
}

.visual-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 11rem;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.hero-symbol {
  display: block;
  width: clamp(8.5rem, 42vw, 12rem);
  height: auto;
}

.visual-panel {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(11, 18, 30, 0.22);
}

.visual-label {
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9bd7cf;
}

.visual-list {
  display: grid;
  gap: 0.65rem;
}

.visual-list li {
  position: relative;
  padding-left: 1.15rem;
  color: rgba(255, 255, 255, 0.92);
}

.visual-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #49b5a8;
}

/* =========================
   Cards / Sections
   ========================= */
.card-grid,
.partnership-grid {
  display: grid;
  gap: var(--space-4);
}

.info-card,
.partnership-item {
  height: 100%;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.info-card p,
.partnership-item p {
  color: var(--color-text-muted);
}

.section-cta {
  background: linear-gradient(180deg, rgba(18, 107, 103, 0.07), rgba(18, 107, 103, 0.02));
  text-align: center;
}

.section-cta .narrow {
  margin-inline: auto;
}

.contact-email {
  margin-top: var(--space-4);
  font-weight: 700;
}

.contact-email a {
  color: var(--color-heading);
}

.contact-email a:hover,
.contact-email a:focus-visible {
  color: var(--color-teal);
}

/* =========================
   Footer
   ========================= */
.site-footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.9);
  padding: var(--space-6) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.footer-brand {
  display: inline-block;
  margin-bottom: var(--space-3);
}

.footer-brand:hover {
  text-decoration: none;
}

.footer-logo {
  display: block;
  width: clamp(13rem, 52vw, 15.5rem);
  height: auto;
}

.footer-company {
  font-weight: 800;
  color: var(--color-white);
}

.site-footer p {
  margin-bottom: 0.4rem;
  color: rgba(255, 255, 255, 0.84);
}

.site-footer a {
  color: #8fd7ce;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-white);
}

/* =========================
   Motion / Reveal
   ========================= */
.reveal {
  opacity: 1;
  transform: none;
}

.motion-enabled .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.65s ease,
    transform 0.65s ease;
}

.motion-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
   Tablet
   ========================= */
@media (min-width: 48rem) {
  .section {
    padding: var(--space-9) 0;
  }

  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .card-grid,
  .partnership-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* =========================
   Desktop Navigation
   ========================= */
@media (min-width: 64rem) {
  .header-inner {
    flex-wrap: nowrap;
    gap: var(--space-5);
  }

  .site-nav {
    width: auto;
    margin-left: auto;
    display: block;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 1.25rem;
    padding-top: 0;
  }

  .nav-list a {
    padding: 0.5rem 0;
  }

  .header-actions {
    order: 3;
  }

  .site-nav {
    order: 2;
  }

  .header-actions .menu-toggle {
    display: none !important;
  }

  body.nav-ready .site-nav,
  body.nav-ready .site-nav.is-open {
    display: block;
  }
}

/* =========================
   Reduced Motion
   ========================= */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}