/* ==========================================================================
   SOLAR NEO ENERGY — Main Stylesheet
   Built from brand guidelines v1.0. Tokens below map 1:1 to the brand palette.
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root{
  /* Brand palette (from brand guidelines) */
  --gold:#FFA200;
  --gold-soft:#FFC65C;
  --green:#6FAE1F;
  --green-soft:#9CD65C;
  --navy:#0B1A2E;
  --void:#000000;

  /* Dark theme (default) */
  --bg:#050607;
  --bg-elevated:#0D1013;
  --surface:rgba(255,255,255,0.045);
  --surface-strong:rgba(255,255,255,0.08);
  --border:rgba(255,255,255,0.10);
  --text:#F4F5F3;
  --text-dim:#A9B0AC;
  --text-faint:#6C746F;

  /* Glass */
  --glass-bg:rgba(18,22,20,0.45);
  --glass-border:rgba(255,255,255,0.12);
  --glass-blur:18px;

  --radius-sm:8px;
  --radius-md:16px;
  --radius-lg:28px;
  --radius-pill:999px;

  --ease:cubic-bezier(.16,.84,.28,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);

  --container:1240px;
  --gutter:clamp(20px,5vw,64px);

  --font-display:'Poppins',sans-serif;
  --font-body:'Lora',serif;
  --font-mono:'JetBrains Mono','Space Mono',monospace;

  color-scheme: dark;
}

[data-theme="light"]{
  --bg:#F4F5F1;
  --bg-elevated:#FFFFFF;
  --surface:rgba(11,26,46,0.035);
  --surface-strong:rgba(11,26,46,0.06);
  --border:rgba(11,26,46,0.10);
  --text:#101414;
  --text-dim:#4C5551;
  --text-faint:#848D89;

  --glass-bg:rgba(255,255,255,0.55);
  --glass-border:rgba(11,26,46,0.10);

  color-scheme: light;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:auto; }
body{ margin:0; }
img,video,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
input,textarea,select{ font-family:inherit; }

html, body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  transition:background .5s var(--ease-soft), color .5s var(--ease-soft);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

::selection{ background:var(--gold); color:#000; }

:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* ---------- Typography ---------- */
.h-display{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.03;
  letter-spacing:-0.01em;
  font-size:clamp(2.6rem, 6vw, 5.2rem);
}
.h-section{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.08;
  letter-spacing:-0.01em;
  font-size:clamp(2rem, 4vw, 3.2rem);
}
.h-card{
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(1.1rem, 1.4vw, 1.4rem);
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.22em;
  text-transform:uppercase;
  color:var(--green);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:'';
  width:22px; height:1px;
  background:var(--gold);
  display:inline-block;
}
.lede{
  font-family:var(--font-body);
  font-style:italic;
  font-size:clamp(1.05rem,1.6vw,1.35rem);
  color:var(--text-dim);
  line-height:1.6;
  max-width:56ch;
}
.body-text{
  font-size:1rem;
  line-height:1.75;
  color:var(--text-dim);
  max-width:62ch;
}
.text-gold{ color:var(--gold); }
.text-green{ color:var(--green); }

/* ---------- Buttons ---------- */
.btn{
  font-family:var(--font-display);
  font-weight:600;
  font-size:0.92rem;
  letter-spacing:0.01em;
  padding:15px 30px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  display:inline-flex;
  align-items:center;
  gap:10px;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .3s, color .3s, border-color .3s;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  color:#100900;
  box-shadow:0 8px 24px -8px rgba(255,162,0,0.55);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 32px -10px rgba(255,162,0,0.7); }
.btn-outline{
  background:transparent;
  color:var(--text);
  border-color:var(--border);
}
.btn-outline:hover{ border-color:var(--green); color:var(--green); transform:translateY(-2px); }
.btn-ghost{
  background:var(--surface);
  color:var(--text);
  border-color:var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
}
.btn-sm{ padding:10px 20px; font-size:0.8rem; }
.btn svg{ width:16px; height:16px; transition:transform .3s var(--ease); }
.btn:hover svg{ transform:translate(3px,-2px); }

/* ---------- Glassmorphism ---------- */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  border-radius:var(--radius-lg);
}
.glass-panel{
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-radius:var(--radius-md);
}

/* ---------- Preloader ---------- */
#preloader{
  position:fixed; inset:0; z-index:9999;
  background:#000;
  display:flex; align-items:center; justify-content:center;
  flex-direction:column;
  transition:opacity .8s var(--ease), visibility .8s;
}
#preloader.done{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-mark{ width:96px; height:96px; position:relative; }
.loader-mark img{ width:100%; height:100%; filter:drop-shadow(0 0 24px rgba(255,162,0,.5)); }
.loader-ring{
  position:absolute; inset:-14px;
  border-radius:50%;
  border:2px solid transparent;
  border-top-color:var(--gold);
  border-right-color:var(--green);
  animation:spin 1.1s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.loader-bar{
  margin-top:28px;
  width:180px; height:2px;
  background:rgba(255,255,255,0.12);
  border-radius:2px;
  overflow:hidden;
}
.loader-bar span{
  display:block; height:100%; width:0%;
  background:linear-gradient(90deg,var(--gold),var(--green));
}
.loader-label{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.2em;
  color:#8a9089;
  text-transform:uppercase;
}

/* ---------- Header ---------- */
#site-header{
  position:fixed; top:0; left:0; right:0; z-index:500;
  padding:18px 0;
  transition:padding .4s var(--ease), background .4s;
}
#site-header .header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  transition:background .4s, border-color .4s, backdrop-filter .4s;
}
#site-header.scrolled .header-inner{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
}
.brand-lockup{ display:flex; align-items:center; gap:10px; }
.brand-lockup img{ height:38px; width:auto; }
.brand-lockup .word{ font-family:var(--font-display); font-weight:700; font-size:1rem; letter-spacing:0.02em; }
.brand-lockup .word span{ color:var(--gold); }

.nav-desktop{ display:flex; align-items:center; gap:34px; }
.nav-desktop a{
  font-family:var(--font-display); font-size:0.86rem; font-weight:500;
  color:var(--text-dim); position:relative; padding:4px 0;
  transition:color .3s;
}
.nav-desktop a::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:1.5px;
  background:var(--gold); transition:width .3s var(--ease);
}
.nav-desktop a:hover{ color:var(--text); }
.nav-desktop a:hover::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap:14px; }
.theme-toggle{
  width:44px; height:44px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:var(--surface); border:1px solid var(--border);
  transition:border-color .3s, transform .3s;
}
.theme-toggle:hover{ border-color:var(--gold); transform:rotate(20deg); }
.theme-toggle svg{ width:19px; height:19px; }
.theme-toggle .sun{ display:none; }
[data-theme="light"] .theme-toggle .sun{ display:block; }
[data-theme="light"] .theme-toggle .moon{ display:none; }

.nav-toggle{
  display:none; width:44px; height:44px; border-radius:50%;
  background:var(--surface); border:1px solid var(--border);
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav-toggle span{ width:18px; height:1.5px; background:var(--text); transition:transform .3s, opacity .3s; }
.nav-toggle.open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

.mobile-nav{
  position:fixed; inset:0; z-index:400;
  background:var(--bg-elevated);
  display:flex; flex-direction:column; justify-content:center; gap:28px;
  padding:0 40px;
  transform:translateY(-100%);
  transition:transform .55s var(--ease);
}
.mobile-nav.open{ transform:translateY(0); }
.mobile-nav a{ font-family:var(--font-display); font-size:1.9rem; font-weight:600; }
.mobile-nav .btn{ margin-top:12px; width:fit-content; }

/* ---------- Hero ---------- */
#hero{
  position:relative; min-height:100vh;
  display:flex; align-items:center;
  overflow:hidden;
  padding-top:120px;
}
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-media video, .hero-media .poster{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
}
.hero-media::after{
  content:''; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.35) 0%, rgba(0,0,0,.55) 55%, var(--bg) 100%);
}
#hero-rays{ position:absolute; inset:0; z-index:1; opacity:.9; mix-blend-mode:screen; }

.hero-content{ position:relative; z-index:2; }
.hero-content .eyebrow{ margin-bottom:22px; color:var(--gold-soft); }
.hero-content .eyebrow::before{ background:var(--green); }
.hero-title{ color:#fff; margin-bottom:22px; }
.hero-title .line{ display:block; overflow:hidden; }
.hero-title .line span{ display:inline-block; }
.hero-sub{ color:rgba(255,255,255,.72); margin-bottom:38px; }
.hero-cta{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:64px; }

.hero-scroll{
  position:absolute; left:50%; bottom:34px; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  color:rgba(255,255,255,.55);
  font-family:var(--font-mono); font-size:0.65rem; letter-spacing:.2em; text-transform:uppercase;
  z-index:2;
}
.hero-scroll .line{ width:1px; height:34px; background:rgba(255,255,255,.3); overflow:hidden; }
.hero-scroll .line span{ display:block; width:100%; height:12px; background:var(--gold); animation:scrollcue 1.8s ease-in-out infinite; }
@keyframes scrollcue{ 0%{ transform:translateY(-14px); } 100%{ transform:translateY(34px); } }

/* ---------- Stats ---------- */
#stats{ position:relative; padding:110px 0; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.stats-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--border); border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden;
}
.stat-cell{ background:var(--bg); padding:38px 28px; text-align:left; position:relative; }
.stat-num{ font-family:var(--font-display); font-weight:700; font-size:clamp(2.2rem,4vw,3.4rem); color:var(--text); display:flex; align-items:baseline; gap:4px; }
.stat-num .suffix{ font-size:0.5em; color:var(--gold); font-weight:600; }
.stat-label{ margin-top:8px; font-family:var(--font-mono); font-size:0.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-faint); }

/* ---------- Section shell ---------- */
.section{ padding:130px 0; position:relative; }
.section-head{ max-width:720px; margin-bottom:64px; }
.section-head .h-section{ margin-top:16px; }

/* ---------- Pillars / About ---------- */
.pillars-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; margin-top:56px; background:var(--border); border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; }
.pillar-cell{ background:var(--bg); padding:34px 26px; transition:background .3s; }
.pillar-cell:hover{ background:var(--surface-strong); }
.pillar-cell .num{ font-family:var(--font-mono); font-size:0.72rem; color:var(--gold); }
.pillar-cell h4{ font-family:var(--font-display); font-weight:600; font-size:1.05rem; margin:14px 0 10px; }
.pillar-cell p{ font-size:0.88rem; color:var(--text-dim); line-height:1.6; }

/* ---------- Solutions ---------- */
.solutions-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:56px; }
.solution-card{
  padding:36px 30px; position:relative; overflow:hidden;
  transition:transform .5s var(--ease), border-color .4s;
}
.solution-card:hover{ transform:translateY(-6px); border-color:var(--gold); }
.solution-card .icon{ width:46px; height:46px; margin-bottom:26px; color:var(--gold); }
.solution-card h3{ margin-bottom:10px; }
.solution-card p{ font-size:0.9rem; color:var(--text-dim); line-height:1.65; margin-bottom:20px; }
.solution-card .tag{ font-family:var(--font-mono); font-size:0.68rem; letter-spacing:.08em; color:var(--green); text-transform:uppercase; }

/* ---------- Diagram ---------- */
#diagram{ background:radial-gradient(ellipse at 30% 20%, rgba(255,162,0,0.06), transparent 55%), radial-gradient(ellipse at 80% 80%, rgba(111,174,31,0.07), transparent 55%); }
.diagram-wrap{ margin-top:50px; display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center; }
.diagram-copy .diagram-step{ display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--border); opacity:.4; transition:opacity .4s; }
.diagram-copy .diagram-step.active{ opacity:1; }
.diagram-copy .diagram-step .idx{ font-family:var(--font-mono); color:var(--gold); font-size:0.85rem; padding-top:2px; }
.diagram-copy .diagram-step h4{ font-family:var(--font-display); font-weight:600; margin-bottom:4px; }
.diagram-copy .diagram-step p{ font-size:0.85rem; color:var(--text-dim); }
#energy-svg{ width:100%; height:auto; }
.flow-dot{ filter:drop-shadow(0 0 6px currentColor); }

/* ---------- Portfolio ---------- */
.portfolio-filters{ display:flex; gap:10px; margin-top:30px; flex-wrap:wrap; }
.filter-btn{
  padding:9px 18px; border-radius:var(--radius-pill); font-family:var(--font-display);
  font-size:0.82rem; font-weight:500; border:1px solid var(--border); color:var(--text-dim);
  transition:all .3s;
}
.filter-btn.active, .filter-btn:hover{ border-color:var(--gold); color:var(--text); background:var(--surface); }

.portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:44px; }
.portfolio-card{ position:relative; border-radius:var(--radius-md); overflow:hidden; aspect-ratio:4/5; }
.portfolio-card .ph-visual{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, var(--navy), #000 70%);
}
.portfolio-card .ph-visual svg{ width:34%; opacity:.5; }
.portfolio-card .overlay{
  position:absolute; inset:0; padding:26px;
  display:flex; flex-direction:column; justify-content:flex-end;
  background:linear-gradient(180deg, transparent 40%, rgba(0,0,0,.88) 100%);
}
.portfolio-card .cap{ font-family:var(--font-mono); font-size:0.68rem; color:var(--gold); text-transform:uppercase; letter-spacing:.08em; margin-bottom:6px; }
.portfolio-card h4{ font-family:var(--font-display); color:#fff; font-weight:600; font-size:1.15rem; }
.portfolio-card .meta{ color:rgba(255,255,255,.65); font-size:0.82rem; margin-top:4px; }
.portfolio-card .ph-note{ position:absolute; top:16px; right:16px; font-family:var(--font-mono); font-size:0.6rem; color:rgba(255,255,255,.45); border:1px solid rgba(255,255,255,.2); padding:4px 8px; border-radius:20px; }

/* ---------- Why Us ---------- */
.whyus-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start; margin-top:20px; }
.whyus-list .item{ display:flex; gap:18px; padding:22px 0; border-bottom:1px solid var(--border); }
.whyus-list .item .ico{ width:34px; height:34px; flex:none; color:var(--green); }
.whyus-list .item h4{ font-family:var(--font-display); font-weight:600; margin-bottom:4px; }
.whyus-list .item p{ font-size:0.88rem; color:var(--text-dim); }
.whyus-visual{ position:sticky; top:120px; }

/* ---------- CTA / Lead form ---------- */
#lead{ position:relative; overflow:hidden; }
.lead-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.lead-form{ padding:44px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ margin-bottom:18px; }
.field.full{ grid-column:1 / -1; }
.field label{ display:block; font-family:var(--font-mono); font-size:0.68rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-faint); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 16px; border-radius:var(--radius-sm);
  background:var(--surface); border:1px solid var(--border); color:var(--text);
  font-family:var(--font-display); font-size:0.92rem;
  transition:border-color .3s, background .3s;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--gold); outline:none; background:var(--surface-strong); }
.field textarea{ resize:vertical; min-height:96px; }
.form-note{ font-size:0.76rem; color:var(--text-faint); margin-top:16px; }
.form-success{ display:none; text-align:center; padding:40px 20px; }
.form-success.show{ display:block; }
.form-success.show ~ form{ display:none; }
.form-success svg{ width:52px; height:52px; color:var(--green); margin:0 auto 16px; }

.lead-info .info-item{ display:flex; gap:16px; margin-bottom:26px; }
.lead-info .info-item .ico{ width:22px; height:22px; color:var(--gold); flex:none; margin-top:2px; }
.lead-info h4{ font-family:var(--font-display); font-weight:600; font-size:0.95rem; margin-bottom:3px; }
.lead-info p, .lead-info a{ font-size:0.88rem; color:var(--text-dim); }

/* ---------- Footer ---------- */
footer{ border-top:1px solid var(--border); padding:70px 0 30px; }
.footer-top{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:60px; }
.footer-brand img{ height:56px; margin-bottom:18px; }
.footer-brand p{ font-size:0.85rem; color:var(--text-dim); max-width:32ch; line-height:1.6; }
.footer-col h5{ font-family:var(--font-mono); font-size:0.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-faint); margin-bottom:18px; }
.footer-col a{ display:block; font-size:0.9rem; color:var(--text-dim); margin-bottom:12px; transition:color .3s; }
.footer-col a:hover{ color:var(--gold); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; border-top:1px solid var(--border); flex-wrap:wrap; gap:16px; }
.footer-bottom p{ font-family:var(--font-mono); font-size:0.72rem; color:var(--text-faint); }
.social-row{ display:flex; gap:12px; }
.social-row a{ width:38px; height:38px; border-radius:50%; border:1px solid var(--border); display:flex; align-items:center; justify-content:center; transition:border-color .3s, color .3s; }
.social-row a:hover{ border-color:var(--gold); color:var(--gold); }
.social-row svg{ width:16px; height:16px; }

/* ---------- Reveal utility (GSAP hooks) ---------- */
[data-reveal]{ opacity:0; transform:translateY(36px); }
.reduced-motion [data-reveal]{ opacity:1 !important; transform:none !important; }

/* ---------- Scrollbar (subtle) ---------- */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:transparent; }
::-webkit-scrollbar-thumb{ background:var(--border); border-radius:10px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1080px){
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .pillars-grid{ grid-template-columns:repeat(2,1fr); }
  .solutions-grid{ grid-template-columns:repeat(2,1fr); }
  .portfolio-grid{ grid-template-columns:repeat(2,1fr); }
  .diagram-wrap{ grid-template-columns:1fr; }
  .whyus-grid{ grid-template-columns:1fr; }
  .whyus-visual{ position:static; order:-1; }
  .lead-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}

@media (max-width:760px){
  .nav-desktop, .header-actions .btn{ display:none; }
  .nav-toggle{ display:flex; }
  .stats-grid{ grid-template-columns:1fr 1fr; }
  .pillars-grid, .solutions-grid, .portfolio-grid{ grid-template-columns:1fr; }
  .section{ padding:90px 0; }
  #hero{ padding-top:110px; }
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-cta .btn{ justify-content:center; }
  .form-row{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; gap:36px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .lead-form{ padding:28px; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}