bmp-website-2026/css/base.css

/* ===================================
   BMP – Base Styles & Reset
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ── Typography (Editorial Refinement) ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-primary);
  font-weight: var(--fw-bold);
}

h1 { font-size: var(--fs-hero); font-weight: var(--fw-black); }
h2 { font-size: var(--fs-h1); }
h3 { font-size: var(--fs-h2); }
h4 { font-size: var(--fs-h3); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-gray-dark);
  font-size: var(--fs-body);
  max-width: 65ch; /* Optimal line length for readability */
}

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

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ── Sections (Generous Spacing) ── */
.section {
  padding: var(--space-4xl) 0;
}

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

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

/* ── Gold Divider (Minimal & Elegant) ── */
.gold-divider {
  width: 80px;
  height: 2px;
  background: var(--color-accent);
  margin: var(--space-md) auto;
  position: relative;
}

.gold-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}


.gold-divider--left {
  margin-left: 0;
}

/* ── Grid ── */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--4,
  .grid--3,
  .grid--2 {
    grid-template-columns: 1fr;
  }
}

/* ── Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 162, 39, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(201, 162, 39, 0); }
}

/* ── Utility ── */
.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;
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ── Missing utilities ── */
.text-center { text-align: center; }
.italic { font-style: italic; }

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

.overline {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-sm);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section--light {
  background-color: var(--color-gray-lighter);
}

.section--pale-blue {
  background-color: var(--color-secondary-pale);
}

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

.section--primary h1,
.section--primary h2,
.section--primary h3,
.section--primary h4 {
  color: var(--color-white);
}

/* ── [data-reveal] animation system ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(44px);
  transition:
    opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.85s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal="left"] {
  transform: translateX(-56px);
}

[data-reveal="right"] {
  transform: translateX(56px);
}

[data-reveal="scale"] {
  transform: scale(0.88);
}

[data-reveal="blur"] {
  transform: translateY(24px);
  filter: blur(10px);
}

[data-reveal].revealed {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ── Stagger items ── */
.stagger-item {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-item.revealed {
  opacity: 1;
  transform: none;
}