/*
  BLUE SEAL ENERGY GROUP — DESIGN SYSTEM
  Editorial luxury meets African industrial power
  The Economist × Hermès × Shell
*/

/* ===========================
   GOOGLE FONTS IMPORT
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400&family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

/* ===========================
   CSS RESET & BASE
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

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

ul, ol {
  list-style: none;
}

/* ===========================
   CSS CUSTOM PROPERTIES
   =========================== */
:root {
  /* Brand Colors */
  --navy:          #0B1E3D;
  --navy-mid:      #1B3A6B;
  --blue-bright:   #0096D6;
  --gold:          #0096D6;
  --gold-light:    #33B9E8;
  --white:         #FFFFFF;
  --off-white:     #F7F8FA;
  --text-dark:     #0B1E3D;
  --text-body:     #2D3A4A;
  --text-muted:    #6B7A8D;

  /* Gradients */
  --grad-hero: linear-gradient(135deg, #050E1F 0%, #0B1E3D 30%, #0D3060 60%, #0A4A8A 85%, #0060B8 100%);
  --grad-section: linear-gradient(160deg, #0B1E3D 0%, #133060 100%);
  --grad-gold: linear-gradient(90deg, #0070A8 0%, #0096D6 50%, #0070A8 100%);
  --grad-card: linear-gradient(145deg, rgba(13,48,96,0.9) 0%, rgba(11,30,61,0.95) 100%);

  /* Glass Morphism */
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.10);
  --glass-border-gold: rgba(0,150,214,0.35);

  /* Typography Scale */
  --text-hero:   clamp(3.5rem, 8vw, 7rem);
  --text-h1:     clamp(2.5rem, 5vw, 5rem);
  --text-h2:     clamp(2rem, 3.5vw, 3.5rem);
  --text-h3:     clamp(1.2rem, 2vw, 1.6rem);
  --text-body:   1.0625rem;
  --text-label:  0.6875rem;
  --text-label-spacing: 0.2em;

  /* Spacing */
  --section-padding: 120px;
  --container-max: 1280px;
  --container-padding: 48px;

  /* Transitions */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===========================
   TYPOGRAPHY SYSTEM
   =========================== */
.font-display {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 300;
  letter-spacing: -0.02em;
}

.font-display-bold {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 600;
}

.font-body {
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
}

.font-mono {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: 0;
}

h1 {
  font-size: var(--text-h1);
}

h2 {
  font-size: var(--text-h2);
}

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

p {
  font-family: 'DM Sans', sans-serif;
  font-size: var(--text-body);
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 0;
}

em {
  font-style: italic;
  font-family: 'Cormorant Garamond', Georgia, serif;
}

/* ===========================
   LAYOUT SYSTEM
   =========================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

section {
  padding: var(--section-padding) 0;
  position: relative;
  overflow: hidden;
}

section.hero {
  padding: 0;
}

section.impact-bar {
  padding: 80px 0;
}

section.announcement {
  padding: 48px 0;
}

/* ===========================
   SECTION LABELS
   =========================== */
.section-label {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-size: var(--text-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--text-label-spacing);
  color: var(--gold);
  margin-bottom: 20px;
  position: relative;
  padding-left: 72px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 1px;
  background: var(--gold);
}

.section-label.centered {
  padding-left: 0;
  padding-bottom: 20px;
}

.section-label.centered::before {
  left: 50%;
  top: auto;
  bottom: 0;
  transform: translateX(-50%);
}

/* ===========================
   GOLD ACCENT ELEMENTS
   =========================== */
.gold-rule {
  width: 60px;
  height: 1px;
  background: var(--gold);
  margin: 32px 0;
}

.gold-rule.centered {
  margin-left: auto;
  margin-right: auto;
}

.gold-rule.long {
  width: 100px;
}

/* ===========================
   IMAGE PLACEHOLDERS
   =========================== */
.img-placeholder {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #0B1E3D 0%, #0D3060 50%, #0A4A8A 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 20px,
    rgba(255,255,255,0.01) 20px,
    rgba(255,255,255,0.01) 40px
  );
  pointer-events: none;
}

.img-placeholder-icon {
  width: 32px;
  height: 32px;
  stroke: rgba(0,150,214,0.4);
  stroke-width: 1.5;
  fill: none;
}

.img-placeholder-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(0,150,214,0.5);
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-center {
  text-align: center;
}

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

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

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

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

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

.bg-navy {
  background: var(--navy);
}

.bg-off-white {
  background: var(--off-white);
}

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

/* ===========================
   GRID SYSTEM
   =========================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ===========================
   RESPONSIVE UTILITIES
   =========================== */
.mobile-only {
  display: none;
}

.desktop-only {
  display: block;
}

@media (max-width: 768px) {
  .mobile-only {
    display: block;
  }

  .desktop-only {
    display: none;
  }
}

/* ===========================
   RESPONSIVE TYPOGRAPHY
   =========================== */
@media (max-width: 768px) {
  :root {
    --section-padding: 80px;
    --container-padding: 24px;
  }

  body {
    font-size: 15px;
  }

  p {
    font-size: 1rem;
  }

  .section-label {
    padding-left: 52px;
  }

  .section-label::before {
    width: 40px;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 60px;
    --container-padding: 20px;
  }

  .section-label {
    font-size: 0.625rem;
  }
}

/* ===========================
   SELECTION & FOCUS STATES
   =========================== */
::selection {
  background: var(--gold);
  color: var(--navy);
}

::-moz-selection {
  background: var(--gold);
  color: var(--navy);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

/* ===========================
   SCROLLBAR STYLING
   =========================== */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--off-white);
}

::-webkit-scrollbar-thumb {
  background: var(--navy-mid);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}