/* ====================================================
   TERRALPHA — EV Charging Solutions
   ==================================================== */

:root{
  --green-700: #15803d;
  --green-600: #1a9c4a;
  --green-500: #22b157;
  --green-50:  #eafaf0;
  --blue-600:  #2563eb;
  --blue-50:   #eaf1fe;
  --ink-900:   #11161a;
  --ink-700:   #2b333a;
  --ink-500:   #5b6670;
  --ink-300:   #99a3ab;
  --line:      #e7eaed;
  --bg:        #ffffff;
  --bg-soft:   #f7f8f9;
  --footer-bg: #0d1014;
  --footer-ink:#aab1b8;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 7px;
  --shadow-card: 0 4px 18px rgba(17,22,26,.06);
  --shadow-pop:  0 10px 30px rgba(17,22,26,.12);
  --font-display: 'Sora', 'Manrope', sans-serif;
  --font-body: 'Manrope', sans-serif;
  --container: 1180px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family: var(--font-display); color: var(--ink-900); margin:0; }
button{ font-family: inherit; cursor:pointer; }
input,textarea{ font-family: inherit; }

.container{
  width:100%;
  max-width: var(--container);
  margin-inline:auto;
  padding-inline: 24px;
}
.text-center{ text-align:center; }

.eyebrow{
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .76rem;
  font-weight: 700;
  color: var(--green-600);
  margin: 0 0 8px;
}
.section-title{
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem);
  font-weight: 700;
  margin: 0 0 44px;
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: .94rem;
  border: 1.5px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn svg{ width:17px; height:17px; fill: currentColor; flex-shrink:0; }
.btn-primary{
  background: var(--green-600);
  color:#fff;
  box-shadow: 0 6px 16px rgba(26,156,74,.28);
}
.btn-primary:hover{ background: var(--green-700); transform: translateY(-1px); }
.btn-outline{
  background:#fff;
  color: var(--ink-900);
  border-color: var(--line);
}
.btn-outline:hover{ border-color: var(--ink-300); transform: translateY(-1px); }
.btn-block{ width:100%; }
.btn-wa{ padding: 11px 20px; }
.icon-wa, .icon-wa-sm{ width:17px; height:17px; fill:#fff; }
.btn-outline .icon-wa-sm{ fill: var(--ink-900); }

/* ===== Header ===== */
.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap: 28px;
  padding-block: 14px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-right: auto;
}
.brand-mark{ width:34px; height:34px; object-fit:contain; }
.brand-text{
  display:flex;
  flex-direction: column;
  line-height: 1.1;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: .02em;
  color: var(--ink-900);
}
.brand-text small{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .56rem;
  letter-spacing: .12em;
  color: var(--green-600);
}
.main-nav{
  display:flex;
  align-items:center;
  gap: 30px;
}
.main-nav a{
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink-700);
  position: relative;
  padding-bottom: 4px;
  transition: color .15s ease;
}
.main-nav a:hover{ color: var(--green-600); }
.main-nav a.active{ color: var(--green-600); }
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-2px;
  height:2px;
  background: var(--green-600);
  border-radius: 2px;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  padding:6px;
}
.nav-toggle span{
  width: 22px; height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

/* ===== Hero ===== */
.hero{
  background: linear-gradient(180deg, var(--bg-soft) 0%, #fff 70%);
  padding-block: 56px 64px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr 1.3fr;
  gap: 48px;
  align-items:center;
}
.hero-copy h1{
  font-size: clamp(2.1rem, 1.5rem + 2.4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.01em;
}
.text-accent{ color: var(--green-600); }
.hero-desc{
  margin: 22px 0 26px;
  font-size: 1.04rem;
  color: var(--ink-500);
  max-width: 440px;
}
.hero-features{
  display:grid;
  grid-template-columns: repeat(4, auto);
  gap: 18px;
  margin-bottom: 30px;
}
.hero-features li{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-size: .78rem;
  font-weight: 700;
  color: var(--ink-700);
  text-align:center;
  width: 92px;
}
.feature-icon{
  width: 46px; height:46px;
  border-radius: 50%;
  background: var(--green-50);
  display:flex;
  align-items:center;
  justify-content:center;
}
.feature-icon svg{
  width: 21px; height:21px;
  fill:none;
  stroke: var(--green-600);
  stroke-width: 1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.hero-actions{
  display:flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-media{
  border-radius: var(--radius-lg);
  overflow:hidden;
  box-shadow: var(--shadow-pop);
}
.hero-media img{ width:100%; height:100%; object-fit:cover; aspect-ratio: 6/5; }

/* ===== Solutions ===== */
.section{ padding-block: 76px; }
.solutions{ background:#fff; }
.card-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.solution-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.solution-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-pop); }
.solution-head{
  display:flex;
  align-items:center;
  gap: 12px;
  margin-bottom: 12px;
}
.solution-icon{
  width:42px; height:42px;
  border-radius: 10px;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.solution-icon svg{ width:21px; height:21px; fill:none; stroke:#fff; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round; }
.icon-green{ background: var(--green-600); }
.icon-blue{ background: var(--blue-600); }
.solution-head h3{
  font-size: .98rem;
  font-weight: 800;
  letter-spacing: .01em;
}
.solution-card > p{
  color: var(--ink-500);
  font-size: .92rem;
  margin: 0 0 16px;
}
.solution-card img{
  border-radius: var(--radius-md);
  aspect-ratio: 4/3;
  object-fit: cover;
  margin-bottom: 16px;
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size: .88rem;
  color: var(--ink-700);
  padding: 5px 0;
}
.check-list li::before{
  content:"✓";
  color: var(--green-600);
  font-weight: 800;
  font-size: .82rem;
  line-height: 1.4;
}

/* ===== Why ===== */
.why{ background: var(--bg-soft); }
.why-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.why-item{ text-align:left; }
.why-icon{
  width:50px; height:50px;
  border-radius: 12px;
  background:#fff;
  border: 1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 16px;
}
.why-icon svg{ width:24px; height:24px; fill:none; stroke: var(--green-600); stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.why-item h3{ font-size: 1rem; font-weight:700; margin-bottom:8px; }
.why-item p{ font-size: .88rem; color: var(--ink-500); margin:0; }

/* ===== Process ===== */
.process{ background:#fff; }
.process-track{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 6px;
}
.process-step{
  flex:1;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  max-width: 160px;
}
.step-num{
  width:38px; height:38px;
  border-radius:50%;
  background: var(--green-600);
  color:#fff;
  font-weight:800;
  font-size: .92rem;
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 14px;
  box-shadow: 0 6px 14px rgba(26,156,74,.3);
}
.process-step h4{ font-size: .92rem; font-weight:700; margin-bottom:6px; }
.process-step p{ font-size: .78rem; color: var(--ink-500); margin:0; }
.process-arrow{
  color: var(--ink-300);
  font-size: 1.1rem;
  padding-top: 9px;
  flex-shrink:0;
}

/* ===== About Us (text-only, no photo) ===== */
.about{ background:#fff; }
.about-copy{
  max-width: 760px;
  margin-inline: auto;
}
.about-copy .eyebrow{ margin-bottom:10px; }
.about-text{ color: var(--ink-500); font-size: .98rem; margin: 0 0 16px; }
.about-text em{ color: var(--ink-300); font-style: italic; }
.about-stats{
  display:flex;
  gap: 34px;
  margin: 30px 0 30px;
}
.about-stats-center{ justify-content:center; }
.about-stats .stat{ text-align:center; }
.about-stats .stat strong{
  display:block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--green-600);
}
.about-stats .stat span{ font-size: .8rem; color: var(--ink-500); }

/* ===== Projects slider ===== */
.project-viewport{ overflow: hidden; border-radius: var(--radius-lg); }
.project-grid{
  display:flex;
  width: 100%;
  transition: transform .5s cubic-bezier(.65,.05,.36,1);
}
.project-card{
  flex: 0 0 100%;
  width: 100%;
  margin:0;
  overflow:hidden;
  background:#fff;
  position:relative;
}
.project-card img{ aspect-ratio: 16/8; object-fit:cover; width:100%; }
.project-card figcaption{
  position:absolute;
  left:0; right:0; bottom:0;
  padding: 22px 26px;
  display:flex;
  flex-direction:column;
  gap:4px;
  background: linear-gradient(0deg, rgba(8,12,15,.78) 0%, rgba(8,12,15,0) 100%);
}
.project-card figcaption strong{ font-size: 1.05rem; color:#fff; }
.project-card figcaption span{ font-size: .85rem; color: #d3d8db; }

.project-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 18px;
  margin-top: 26px;
}
.project-arrow{
  width: 36px; height:36px;
  border-radius:50%;
  border: 1px solid var(--line);
  background:#fff;
  color: var(--ink-700);
  font-size: 1.2rem;
  line-height:1;
  display:flex; align-items:center; justify-content:center;
  transition: border-color .15s ease, color .15s ease, transform .15s ease;
}
.project-arrow:hover{ border-color: var(--green-600); color: var(--green-600); transform: translateY(-1px); }
.dots{ display:flex; gap:8px; margin:0; }
.dot{
  cursor:pointer;
  width:8px; height:8px;
  border-radius:50%;
  background: var(--ink-300);
  opacity:.5;
  transition: all .2s ease;
}
.dot.active{ background: var(--green-600); opacity:1; width:22px; border-radius:5px; }


/* ===== Footer ===== */
.site-footer{ background: var(--footer-bg); color: var(--footer-ink); padding-top: 64px; }
.footer-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr 1.1fr;
  gap: 50px;
  padding-bottom: 50px;
}
.brand-footer .brand-text{ color:#fff; }
.footer-company{ color:#fff; font-weight:700; margin: 18px 0 8px; font-size: .96rem; }
.footer-desc{ font-size: .87rem; line-height:1.7; max-width: 320px; }
.social-row{ display:flex; gap:12px; margin-top:20px; }
.social-row a{
  width:36px; height:36px;
  border-radius:50%;
  border: 1px solid #2a2f34;
  display:flex; align-items:center; justify-content:center;
  transition: border-color .15s ease, background .15s ease;
}
.social-row a:hover{ border-color: var(--green-600); background: rgba(26,156,74,.12); }
.social-row svg{ width:16px; height:16px; fill:none; stroke: var(--footer-ink); stroke-width:1.6; }
.footer-contact h4, .footer-form h4{
  color:#fff;
  font-size: .8rem;
  letter-spacing: .1em;
  font-weight:700;
  margin: 6px 0 22px;
}
.contact-row{
  display:flex;
  gap:12px;
  margin-bottom: 18px;
  font-size: .87rem;
}
.contact-row svg{ width:18px; height:18px; flex-shrink:0; fill:none; stroke: var(--green-500); stroke-width:1.6; margin-top:2px; }
.contact-row div{ display:flex; flex-direction:column; gap:2px; }
.contact-row strong{ color:#fff; font-size: .9rem; }

.footer-form form{ display:flex; flex-direction:column; gap:12px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.footer-form input, .footer-form textarea{
  width:100%;
  background: #15191d;
  border: 1px solid #262b30;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color:#fff;
  font-size: .88rem;
  resize: vertical;
  outline:none;
  transition: border-color .15s ease;
}
.footer-form input::placeholder, .footer-form textarea::placeholder{ color: #6c747b; }
.footer-form input:focus, .footer-form textarea:focus{ border-color: var(--green-600); }
.icon-send{ width:15px; height:15px; fill:#fff; }
.form-status{ font-size: .82rem; min-height: 1.2em; color: var(--green-500); margin:4px 0 0; }

.footer-bottom{ border-top: 1px solid #1d2226; margin-top: 8px; }
.footer-bottom-inner{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  padding-block: 20px;
  font-size: .8rem;
  color: #7a828a;
}
.heart{ color: var(--green-500); }

/* ===== Floating WhatsApp ===== */
.float-wa{
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 200;
  background: var(--green-600);
  color:#fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow: 0 10px 24px rgba(26,156,74,.4);
  transition: width .25s ease, border-radius .25s ease, padding .25s ease;
  overflow:hidden;
  white-space:nowrap;
}
.float-wa svg{ width:26px; height:26px; fill:#fff; flex-shrink:0; }
.float-wa span{ display:none; font-size:.74rem; font-weight:700; line-height:1.2; margin-left:10px; }
.float-wa:hover{
  width: 168px;
  border-radius: 30px;
  padding-inline: 16px;
}
.float-wa:hover span{ display:block; }

/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-media{ order:-1; }
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
  .process-track{ flex-wrap:wrap; justify-content:center; }
  .process-arrow{ display:none; }
  .process-step{ max-width: 220px; width: 30%; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-form{ grid-column: 1 / -1; }
}

@media (max-width: 860px){
  .main-nav{
    position:absolute;
    top: 100%;
    left:0; right:0;
    background:#fff;
    border-bottom: 1px solid var(--line);
    flex-direction:column;
    align-items:flex-start;
    padding: 18px 24px 24px;
    gap: 16px;
    transform: translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .main-nav.open{ opacity:1; transform: translateY(0); pointer-events:auto; }
  .nav-toggle{ display:flex; }
  .header-cta{ display:none; }
  .card-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 640px){
  .hero{ padding-block: 36px 44px; }
  .hero-features{ grid-template-columns: repeat(2, 1fr); }
  .hero-actions{ flex-direction:column; }
  .hero-actions .btn{ width:100%; }
  .why-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 36px; }
  .form-row{ grid-template-columns: 1fr; }
  .section{ padding-block: 52px; }
  .process-step{ width: 100%; max-width:none; }
  .float-wa{ right:14px; bottom:14px; width:52px; height:52px; }
  .float-wa:hover{ width:52px; padding-inline:0; }
  .float-wa:hover span{ display:none; }
}