/* ===========================================================
   MASOOM GROUP — shared design system
   One shell, four material palettes.
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,450;0,9..144,600;0,9..144,700;0,9..144,900;1,9..144,450;1,9..144,600&family=Public+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* shell */
  --navy:      #101B2E;
  --navy-2:    #17263D;
  --paper:     #F6F3EC;
  --paper-2:   #EEE9DC;
  --ink:       #14171C;
  --ink-soft:  #4A5162;
  --gold:      #C79A45;
  --gold-soft: #E4CFA0;
  --line:      rgba(20,23,28,0.12);
  --line-dark: rgba(246,243,236,0.16);

  /* vertical accents */
  --oil:    #E08E2C;
  --oil-2:  #FCE7C6;
  --energy: #1F6F5C;
  --energy-2:#D3E6E0;
  --estate: #9C6B4A;
  --estate-2:#EADCD0;
  --biofuel:#5B6B3C;
  --biofuel-2:#E3E6D6;

  --accent: var(--gold);
  --accent-2: var(--gold-soft);

  --serif: 'Fraunces', Georgia, serif;
  --sans:  'Public Sans', -apple-system, Segoe UI, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, monospace;

  --container: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3,h4{ font-family: var(--serif); font-weight: 600; margin: 0 0 0.4em; letter-spacing: -0.01em; }
p{ margin: 0 0 1em; color: var(--ink-soft); }
.wrap{ max-width: var(--container); margin: 0 auto; padding: 0 32px; }

.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 18px;
}
.eyebrow::before{
  content:"";
  width: 28px; height: 1px;
  background: var(--accent);
  display:inline-block;
}

/* ---------- nav ---------- */
.nav{
  position: sticky; top:0; z-index: 50;
  background: rgba(16,27,46,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.nav-mark{ display:flex; align-items:center; gap:12px; color: var(--paper); }
.nav-mark .glyph{
  width: 34px; height:34px; border:1px solid var(--gold);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--serif); font-weight:700; color: var(--gold); font-size:16px;
}
.nav-mark .name{ font-family: var(--serif); font-size: 18px; letter-spacing: 0.01em; }
.nav-mark .name small{ display:block; font-family: var(--mono); font-size:10px; letter-spacing:.12em; color: var(--gold-soft); text-transform:uppercase; margin-top:2px;}
.nav-links{ display:flex; gap:34px; align-items:center; }
.nav-links a{
  color: rgba(246,243,236,0.72); font-size: 14px; font-weight:500;
  position:relative; padding: 6px 0;
  transition: color .2s ease;
}
.nav-links a:hover, .nav-links a.active{ color: var(--paper); }
.nav-links a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background: var(--accent);
}
.nav-toggle{ display:none; background:none; border:none; color:var(--paper); font-size:22px; cursor:pointer; }

@media (max-width: 860px){
  .nav-links{
    position:absolute; top:76px; left:0; right:0;
    background: var(--navy); flex-direction:column; align-items:flex-start;
    padding: 12px 32px 24px; gap:18px;
    display:none;
    border-bottom: 1px solid var(--line-dark);
  }
  .nav-links.open{ display:flex; }
  .nav-toggle{ display:block; }
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--mono); font-size: 13px; letter-spacing:.05em; text-transform:uppercase;
  padding: 14px 24px; border: 1px solid currentColor; cursor:pointer;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.btn-light{ color: var(--paper); }
.btn-light:hover{ background: var(--paper); color: var(--navy); }
.btn-dark{ color: var(--navy); }
.btn-dark:hover{ background: var(--navy); color: var(--paper); }
.btn-accent{ background: var(--accent); color: var(--navy); border-color: var(--accent); font-weight:600; }
.btn-accent:hover{ transform: translateY(-2px); }

/* ---------- hero ---------- */
.hero{
  position:relative; background: var(--navy); color: var(--paper);
  overflow:hidden; padding: 120px 0 90px;
}
.hero .ghost-year{
  position:absolute; right:-40px; top:-40px;
  font-family: var(--serif); font-weight:900; font-size: min(38vw, 460px);
  color: rgba(246,243,236,0.045); line-height:1; user-select:none; pointer-events:none;
}
.hero-inner{ position:relative; max-width: 760px; }
.hero h1{ font-size: clamp(38px, 5.4vw, 68px); line-height:1.05; color: var(--paper); }
.hero h1 em{ color: var(--accent); font-style: normal; }
.hero .lede{ font-size: 19px; color: rgba(246,243,236,0.78); max-width: 560px; margin-bottom: 34px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

.hero.small{ padding: 96px 0 64px; }
.hero.small h1{ font-size: clamp(32px, 4.4vw, 52px); }

/* ---------- sections ---------- */
section{ padding: 96px 0; }
.section-alt{ background: var(--paper-2); }
.section-dark{ background: var(--navy); color: var(--paper); }
.section-dark p{ color: rgba(246,243,236,0.72); }
.section-head{ max-width: 640px; margin-bottom: 56px; }
.section-head h2{ font-size: clamp(28px, 3.4vw, 40px); }

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- legacy ribbon (timeline) ---------- */
.ribbon{ position:relative; padding: 40px 0 10px; overflow-x:auto; }
.ribbon-track{
  position:relative; display:flex; gap:0; min-width: 900px;
  padding-top: 28px;
}
.ribbon-track::before{
  content:""; position:absolute; top:0; left:0; right:0; height:2px;
  background: linear-gradient(90deg, var(--gold), var(--oil), var(--energy), var(--estate), var(--biofuel));
}
.ribbon-item{ flex:1; padding: 0 28px 0 0; position:relative; }
.ribbon-item::before{
  content:""; position:absolute; top:-32px; left:0; width:10px; height:10px; border-radius:50%;
  background: var(--gold); border: 2px solid var(--navy);
}
.ribbon-item .yr{ font-family: var(--mono); font-size: 13px; color: var(--gold); letter-spacing:.06em; }
.ribbon-item h4{ font-size: 18px; margin: 8px 0 6px; color: var(--paper); }
.ribbon-item p{ font-size: 14px; color: rgba(246,243,236,0.66); margin:0; }

/* ---------- stat grid ---------- */
.stat-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }
.stat{ background: var(--paper); padding: 34px 28px; }
.stat .n{ font-family: var(--serif); font-weight:700; font-size: 42px; color: var(--navy); line-height:1; }
.stat .n span{ color: var(--accent); }
.stat .l{ font-family: var(--mono); font-size: 12px; text-transform:uppercase; letter-spacing:.08em; color: var(--ink-soft); margin-top:10px; }
@media (max-width: 760px){ .stat-grid{ grid-template-columns: repeat(2,1fr); } }

/* ---------- vertical cards ---------- */
.verticals{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.v-card{
  position:relative; padding: 32px 26px; background: var(--paper);
  border: 1px solid var(--line); border-top: 4px solid var(--v-accent, var(--gold));
  transition: transform .25s ease, box-shadow .25s ease;
  display:flex; flex-direction:column; min-height: 300px;
}
.v-card:hover{ transform: translateY(-6px); box-shadow: 0 18px 40px rgba(16,27,46,0.12); }
.v-card .tag{ font-family: var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.1em; color: var(--v-accent, var(--gold)); margin-bottom: 14px; }
.v-card h3{ font-size: 21px; margin-bottom: 10px; }
.v-card p{ font-size: 14px; flex:1; }
.v-card .go{ font-family: var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:.08em; margin-top: 18px; display:flex; align-items:center; gap:8px; color: var(--ink); }
@media (max-width: 980px){ .verticals{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .verticals{ grid-template-columns: 1fr; } }

/* ---------- pillars / two-col ---------- */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items:start; }
@media (max-width: 860px){ .split{ grid-template-columns: 1fr; gap:40px; } }

.pillars{ display:grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
@media (max-width: 860px){ .pillars{ grid-template-columns: 1fr; } }
.pillar{ padding-top: 20px; border-top: 1px solid var(--line); }
.pillar .num{ font-family: var(--mono); font-size:12px; color: var(--accent); margin-bottom:12px; }
.pillar h4{ font-size:18px; }
.pillar p{ font-size:14px; }

/* ---------- quote ---------- */
.quote{ font-family: var(--serif); font-style: italic; font-weight:450; font-size: clamp(22px,2.6vw,32px); line-height:1.4; color: var(--paper); max-width: 820px; }
.quote .cite{ display:block; font-family: var(--mono); font-style:normal; font-size:13px; letter-spacing:.06em; text-transform:uppercase; color: var(--gold); margin-top: 22px; }

/* ---------- footer ---------- */
footer{ background: var(--navy); color: rgba(246,243,236,0.6); padding: 64px 0 32px; }
.foot-grid{ display:grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 32px; margin-bottom: 56px; }
.foot-grid h5{ font-family: var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:.08em; color: var(--paper); margin-bottom:16px; }
.foot-grid a{ display:block; font-size:14px; padding: 5px 0; color: rgba(246,243,236,0.6); }
.foot-grid a:hover{ color: var(--gold); }
.foot-bottom{ border-top:1px solid var(--line-dark); padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:13px; }
@media (max-width: 860px){ .foot-grid{ grid-template-columns: 1fr 1fr; } }

/* ---------- misc util ---------- */
.badge-ring{
  width:150px; height:150px; border-radius:50%; border: 1.5px solid var(--gold);
  display:flex; align-items:center; justify-content:center; flex-direction:column;
  font-family:var(--serif); color: var(--paper); text-align:center;
}
.badge-ring .big{ font-size:34px; font-weight:800; color: var(--gold); }
.badge-ring .small{ font-family:var(--mono); font-size:9px; letter-spacing:.1em; text-transform:uppercase; margin-top:4px;}

.icon{ width:22px; height:22px; }

.divider{ height:1px; background: var(--line); margin: 0; }
.divider-dark{ height:1px; background: var(--line-dark); }

/* ---------- per-vertical theming ---------- */
.theme-oil{      --accent: var(--oil);      --accent-2: var(--oil-2); }
.theme-energy{   --accent: var(--energy);   --accent-2: var(--energy-2); }
.theme-estate{   --accent: var(--estate);   --accent-2: var(--estate-2); }
.theme-biofuel{  --accent: var(--biofuel);  --accent-2: var(--biofuel-2); }

/* vertical page hero strip */
.vert-strip{ display:flex; gap:0; height:6px; }
.vert-strip span{ flex:1; }

/* feature row (icon+text) */
.feature-list{ display:grid; gap: 22px; }
.feature{ display:flex; gap:18px; align-items:flex-start; padding: 20px 0; border-bottom: 1px solid var(--line); }
.feature .mark{
  width:38px; height:38px; flex:none; border-radius:50%;
  background: var(--accent-2); color: var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--mono); font-weight:600; font-size:13px;
}
.feature h4{ font-size:16px; margin-bottom:4px; }
.feature p{ font-size:14px; margin:0; }

/* gallery grid */
.gallery{ display:grid; grid-template-columns: repeat(3,1fr); gap:18px; }
.gallery div{ aspect-ratio: 4/3; background: var(--accent-2); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color: var(--accent); text-align:center; padding:10px; }
@media (max-width:760px){ .gallery{ grid-template-columns: 1fr 1fr; } }

/* related verticals strip on subpages */
.related{ display:grid; grid-template-columns: repeat(3,1fr); gap:20px; }
@media (max-width:860px){ .related{ grid-template-columns:1fr; } }
.related a{
  padding: 22px; border:1px solid var(--line); display:block;
  transition: border-color .2s ease, transform .2s ease;
}
.related a:hover{ transform: translateY(-4px); }
.related .tag{ font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px; }
.related h5{ font-family: var(--serif); font-size:17px; margin:0; }