/* ============================================================
   Baobab Energy Systems Tanzania Ltd. — corporate site stylesheet
   Brand palette matches company presentations.
   ============================================================ */
:root{
  --navy:#00057A;
  --navy-dk:#000454;
  --red:#DC000E;
  --red-dk:#A6000B;
  --white:#FFFFFF;
  --lgray:#F2F2F2;
  --mgray:#8A8F98;
  --dtext:#222222;
  --green:#2E7D32;
  --gold:#C98A00;
  --border:#E1E3EC;
  --shadow: 0 10px 30px rgba(0,5,50,0.08);
  --font-head:'Cambria','Playfair Display',Georgia,'Times New Roman',serif;
  --font-body:Calibri,'Segoe UI',Inter,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--dtext);background:var(--white);line-height:1.65;font-size:16px}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy);line-height:1.18;font-weight:700}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1240px;margin:0 auto;padding:0 5%}
.kicker{font-size:0.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin-bottom:.6rem;display:block}
.sec{padding:5.2rem 0}
.sec-alt{background:var(--lgray)}
.sec-title{font-size:2.1rem;margin-bottom:1rem}
.sec-sub{color:var(--mgray);max-width:640px;margin-bottom:2.6rem;font-size:1.02rem}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- top notice bar ---------- */
.topbar{background:var(--navy-dk);color:#C9CEF0;font-size:.78rem;padding:.42rem 0;text-align:center;letter-spacing:.02em}

/* ---------- nav ---------- */
header.site-nav{position:sticky;top:0;z-index:500;background:var(--navy);box-shadow:0 2px 14px rgba(0,0,0,0.12)}
.nav-inner{max-width:1240px;margin:0 auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.65rem}
.brand img{height:44px;width:auto}
.brand-name{font-family:var(--font-head);font-weight:700;color:#fff;font-size:1.02rem;line-height:1.15}
.brand-name small{display:block;font-family:var(--font-body);font-weight:400;color:#AEB4E8;font-size:.66rem;letter-spacing:.06em}
nav.links{display:flex;align-items:center;gap:1.7rem}
nav.links a{color:#D8DAF2;font-size:.86rem;font-weight:600;letter-spacing:.02em;padding:.4rem 0;border-bottom:2px solid transparent;transition:.2s}
nav.links a:hover,nav.links a.active{color:#fff;border-color:var(--red)}
.nav-right{display:flex;align-items:center;gap:.8rem}
.lang-switch{position:relative}
.lang-btn{display:flex;align-items:center;gap:.4rem;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);color:#fff;padding:.4rem .7rem;border-radius:6px;font-size:.78rem;font-weight:700;cursor:pointer;font-family:var(--font-body)}
.lang-btn:hover{border-color:var(--red)}
.lang-menu{display:none;position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--border);border-radius:10px;min-width:190px;box-shadow:var(--shadow);overflow:hidden;z-index:600}
.lang-menu.open{display:block}
.lang-opt{display:flex;align-items:center;gap:.6rem;padding:.6rem .9rem;font-size:.84rem;color:var(--dtext);cursor:pointer}
.lang-opt:hover{background:var(--lgray)}
.lang-opt.active{color:var(--red);font-weight:700;background:#FBEAEB}
.btn-login{background:transparent;border:1.5px solid rgba(255,255,255,.35);color:#fff;padding:.42rem 1.05rem;border-radius:6px;font-size:.82rem;font-weight:700;cursor:pointer;font-family:var(--font-body)}
.btn-login:hover{border-color:var(--red);color:#fff;background:rgba(220,0,14,.15)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem}
.burger span{width:24px;height:2px;background:#fff;display:block}

/* ---------- buttons ---------- */
.btn{display:inline-block;padding:.85rem 1.9rem;border-radius:7px;font-weight:700;font-size:.9rem;letter-spacing:.02em;cursor:pointer;border:none;font-family:var(--font-body);transition:.2s}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dk)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-dk)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-outline-navy{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}
.btn-outline-navy:hover{background:var(--navy);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;min-height:640px;display:flex;align-items:center;background:var(--navy);overflow:hidden;color:#fff}
.hero .bg-photo{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.hero .bg-grad{position:absolute;inset:0;background:linear-gradient(115deg,rgba(0,5,122,.97) 0%,rgba(0,5,122,.86) 45%,rgba(0,5,84,.55) 100%)}
.hero .blob{position:absolute;border-radius:50%;background:var(--red);opacity:.14}
.hero-content{position:relative;z-index:5;max-width:700px;padding:7.5rem 0 5rem}
.badge{display:inline-flex;align-items:center;gap:.5rem;background:rgba(220,0,14,.18);border:1px solid rgba(220,0,14,.55);color:#FF9AA0;padding:.4rem 1rem;border-radius:20px;font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:1.6rem}
.hero h1{font-size:3rem;color:#fff;margin-bottom:1.2rem;letter-spacing:-.01em}
.hero h1 em{color:var(--red);font-style:normal}
.hero p.lead{font-size:1.08rem;color:#D8DAF2;max-width:560px;margin-bottom:2.2rem;line-height:1.75}
.hero .btnrow{display:flex;gap:1rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:2.6rem;margin-top:3rem;padding-top:1.8rem;border-top:1px solid rgba(255,255,255,.16);flex-wrap:wrap}
.hs-num{font-family:var(--font-head);font-size:1.9rem;font-weight:700;color:var(--red)}
.hs-lbl{font-size:.76rem;color:#AEB4E8;margin-top:.2rem;max-width:150px}

/* page header (non-home hero, shorter) */
.pagehead{position:relative;background:var(--navy);color:#fff;padding:6.5rem 0 3.5rem;overflow:hidden}
.pagehead .blob{position:absolute;border-radius:50%;background:var(--red);opacity:.13}
.pagehead .kicker{color:#FF9AA0}
.pagehead h1{color:#fff;font-size:2.5rem;position:relative;z-index:2}
.pagehead p{color:#D8DAF2;max-width:640px;margin-top:.9rem;position:relative;z-index:2;font-size:1.02rem}

/* ---------- cards / grids ---------- */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:1.9rem;box-shadow:var(--shadow)}
.card.flush{padding:0;overflow:hidden}
.card h3{font-size:1.2rem;margin-bottom:.6rem}
.card p{color:var(--mgray);font-size:.94rem}
.project-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);display:flex;flex-direction:column}
.project-card .ph{height:220px;background-size:cover;background-position:center;position:relative}
.project-card .ph .tag{position:absolute;top:1rem;left:1rem;background:var(--red);color:#fff;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.3rem .7rem;border-radius:20px}
.project-card .pc-body{padding:1.7rem;flex:1;display:flex;flex-direction:column}
.project-card h3{font-size:1.35rem;margin-bottom:.7rem}
.project-card p{color:var(--mgray);font-size:.94rem;margin-bottom:1.3rem;flex:1}
.project-card .specs{display:flex;gap:1.6rem;margin-bottom:1.3rem;flex-wrap:wrap}
.project-card .spec b{display:block;font-family:var(--font-head);color:var(--navy);font-size:1.15rem}
.project-card .spec span{font-size:.72rem;color:var(--mgray);text-transform:uppercase;letter-spacing:.05em}

/* ---------- stats / kpi row ---------- */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.kpi{background:var(--navy);border-radius:12px;padding:1.7rem 1.3rem;text-align:center;color:#fff}
.kpi b{font-family:var(--font-head);font-size:1.7rem;display:block;color:#FF9AA0}
.kpi span{font-size:.78rem;color:#D8DAF2;display:block;margin-top:.35rem}
.kpi.green{background:var(--green)}
.kpi.green b{color:#fff}
.kpi.green span{color:#DDEFDD}

/* ---------- how-it-works two-mode ---------- */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.mode-card{border-radius:14px;padding:1.9rem;border:1px solid var(--border)}
.mode-card.m1{background:var(--lgray)}
.mode-card.m2{background:var(--navy);color:#fff}
.mode-card .num{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-weight:700;font-size:1.3rem;color:#fff;margin-bottom:1rem}
.mode-card.m1 .num{background:var(--green)}
.mode-card.m2 .num{background:var(--red)}
.mode-card h4{font-size:1.1rem;margin-bottom:.6rem}
.mode-card.m2 h4{color:#fff}
.mode-card p{font-size:.92rem;color:var(--dtext)}
.mode-card.m2 p{color:#E7E8F5}

/* ---------- spec table ---------- */
table.spec{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
table.spec th{background:var(--navy);color:#fff;text-align:left;padding:.85rem 1.1rem;font-size:.82rem;letter-spacing:.03em}
table.spec td{padding:.8rem 1.1rem;border-bottom:1px solid var(--border);font-size:.92rem}
table.spec tr:nth-child(even) td{background:var(--lgray)}
table.spec td:first-child{font-weight:700;color:var(--navy);width:34%}

/* ---------- chart (css bars) ---------- */
.chart-wrap{background:#fff;border:1px solid var(--border);border-radius:14px;padding:2rem;box-shadow:var(--shadow)}
.bars{display:flex;align-items:flex-end;gap:.7rem;height:220px;margin-top:1.2rem}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}
.bar-val{font-size:.68rem;color:var(--navy);font-weight:700;margin-bottom:.3rem}
.bar{width:100%;background:linear-gradient(180deg,var(--gold),#a06e00);border-radius:4px 4px 0 0}
.bar-lbl{font-size:.68rem;color:var(--mgray);margin-top:.5rem}

/* ---------- corridor strip diagram ---------- */
.corridor{position:relative;padding:2.6rem 1rem 1rem;overflow-x:auto}
.corridor-line{position:relative;height:4px;background:var(--navy);border-radius:2px;min-width:820px;margin:0 30px}
.corridor-stop{position:absolute;top:-7px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--navy);transform:translateX(-50%)}
.corridor-stop.climb{background:var(--red);border-color:var(--red)}
.corridor-stop .lbl{position:absolute;top:22px;left:50%;transform:translateX(-50%);font-size:.68rem;color:var(--dtext);white-space:nowrap}
.corridor-stop.climb .lbl{color:var(--red);font-weight:700}
.corridor-end{position:absolute;top:-10px;width:24px;height:24px;border-radius:50%;background:var(--navy);transform:translateX(-50%)}
.corridor-end .lbl{position:absolute;top:-32px;left:50%;transform:translateX(-50%);font-size:.78rem;font-weight:700;color:var(--navy);white-space:nowrap}

/* ---------- news ---------- */
.news-card{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.news-card .ph{height:170px;background-size:cover;background-position:center}
.news-card .nc-body{padding:1.4rem 1.5rem 1.7rem}
.news-date{font-size:.72rem;color:var(--red);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.news-card h3{font-size:1.08rem;margin:.5rem 0 .6rem}
.news-card p{color:var(--mgray);font-size:.9rem}

/* ---------- about ---------- */
.value-card{text-align:center;padding:2rem 1.3rem}
.value-card .ic{width:56px;height:56px;border-radius:50%;background:var(--lgray);display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;color:var(--red);font-size:1.5rem;font-weight:700;font-family:var(--font-head)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem}
.contact-info-row{display:flex;gap:1rem;margin-bottom:1.4rem;align-items:flex-start}
.contact-info-row .ic{width:40px;height:40px;border-radius:8px;background:var(--lgray);display:flex;align-items:center;justify-content:center;color:var(--red);flex-shrink:0}
.form-field{margin-bottom:1.1rem}
.form-field label{display:block;font-size:.82rem;font-weight:700;color:var(--navy);margin-bottom:.4rem}
.form-field input,.form-field textarea,.form-field select{width:100%;padding:.75rem .9rem;border:1px solid var(--border);border-radius:7px;font-family:var(--font-body);font-size:.92rem;background:#fff}
.form-field textarea{resize:vertical;min-height:110px}

/* ---------- login ---------- */
.login-wrap{max-width:420px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:14px;padding:2.6rem;box-shadow:var(--shadow)}
.login-note{background:#FFF7E6;border:1px solid #F0D999;color:#7a5b00;font-size:.84rem;padding:.9rem 1.1rem;border-radius:8px;margin-bottom:1.6rem}

/* ---------- footer ---------- */
footer{background:var(--navy-dk);color:#AEB4E8;padding:3.5rem 0 1.5rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2.2rem;margin-bottom:2.2rem}
.foot-grid h5{color:#fff;font-size:.86rem;letter-spacing:.05em;margin-bottom:1rem;text-transform:uppercase}
.foot-grid a{display:block;color:#AEB4E8;font-size:.86rem;margin-bottom:.6rem}
.foot-grid a:hover{color:#fff}
.foot-brand{display:flex;align-items:center;gap:.6rem;margin-bottom:1rem}
.foot-brand img{height:38px}
.foot-brand span{font-family:var(--font-head);color:#fff;font-weight:700}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:1.3rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem;font-size:.78rem;color:#7C82BC}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .grid2,.grid3,.grid4,.kpi-row,.modes,.contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  nav.links{display:none}
  .burger{display:flex}
  .hero h1{font-size:2.2rem}
  .pagehead h1{font-size:1.9rem}
}
@media(max-width:600px){
  .foot-grid{grid-template-columns:1fr}
  .hero-stats{gap:1.4rem}
}

/* mobile nav drawer */
.mobile-drawer{display:none;position:fixed;inset:0;z-index:900;background:var(--navy);padding:2rem 6%}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;color:#fff;font-size:1.1rem;padding:.9rem 0;border-bottom:1px solid rgba(255,255,255,.12)}
.mobile-close{background:none;border:none;color:#fff;font-size:1.6rem;position:absolute;top:1.6rem;right:6%;cursor:pointer}