/*
Theme Name: OISAI Institute
Theme URI: https://oisai.edu.pk
Author: OISAI
Description: Custom theme for Orient Institute of Science and AI (OISAI) - a modern EdTech platform for school education, AI, Data Science, Programming, IELTS, Spoken English and Online Quran Pak teaching.
Version: 1.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: oisai
*/


  :root{
    --ink:#08201A;
    --forest:#0E3B2E;
    --forest-2:#12503E;
    --green:#1FAE6B;
    --green-bright:#2FD588;
    --sage:#E7F3EC;
    --paper:#FBFDFC;
    --white:#FFFFFF;
    --line:#DCEAE3;
    --max:1180px;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:'Inter', sans-serif;
    color:var(--ink);
    background:var(--paper);
    line-height:1.6;
    overflow-x:hidden;
  }
  h1,h2,h3,h4{
    font-family:'Space Grotesk', sans-serif;
    font-weight:600;
    line-height:1.15;
    letter-spacing:-0.01em;
  }
  a{text-decoration:none; color:inherit;}
  ul{list-style:none;}
  img,svg{display:block; max-width:100%;}
  .wrap{max-width:var(--max); margin:0 auto; padding:0 28px;}
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:14px 28px; border-radius:10px; font-weight:600; font-size:15px;
    cursor:pointer; border:1px solid transparent; transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
    white-space:nowrap;
  }
  .btn-primary{ background:var(--forest); color:var(--white); box-shadow:0 8px 20px -8px rgba(14,59,46,.55);}
  .btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 26px -10px rgba(14,59,46,.6);}
  .btn-ghost{ background:transparent; color:var(--forest); border-color:var(--line);}
  .btn-ghost:hover{ border-color:var(--forest); background:var(--sage);}
  .btn-light{ background:var(--white); color:var(--forest);}
  .btn-light:hover{ transform:translateY(-2px);}
  .eyebrow{
    font-size:13px; font-weight:600; color:var(--forest-2); letter-spacing:.02em;
  }
  .section{ padding:104px 0; }
  .section-tight{ padding:72px 0; }
  .section-head{ max-width:620px; margin-bottom:52px; }
  .section-head p.eyebrow{ margin-bottom:14px; }
  .section-head h2{ font-size:clamp(28px,3.6vw,42px); margin-bottom:14px; }
  .section-head .desc{ color:#4B5F58; font-size:17px; max-width:520px; }
  .section-alt{ background:var(--sage); }

  /* ===== NAVBAR ===== */
  header.nav{
    position:sticky; top:0; z-index:100;
    background:rgba(251,253,252,.86);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{ display:flex; align-items:center; justify-content:space-between; height:78px; }
  .logo{ display:flex; align-items:center; gap:12px; }
  .logo-mark{
    width:42px; height:42px; border-radius:11px;
    background:linear-gradient(135deg,var(--forest),var(--green-bright));
    display:flex; align-items:center; justify-content:center;
    color:#fff; font-family:'Space Grotesk'; font-weight:700; font-size:16px;
    flex-shrink:0;
  }
  .logo-text-a{ font-family:'Space Grotesk'; font-weight:700; font-size:19px; line-height:1.1;}
  .logo-text-b{ font-size:11px; color:#587A6E; letter-spacing:.01em;}
  nav.links{ display:flex; align-items:center; gap:34px; }
  nav.links a{ font-size:14.5px; font-weight:500; color:#28453A; position:relative; padding:4px 0;}
  nav.links a::after{
    content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px;
    background:var(--green); transition:width .25s ease;
  }
  nav.links a:hover::after{ width:100%; }
  .nav-cta{ display:flex; align-items:center; gap:18px; }
  .hamburger{ display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; }
  .hamburger span{ width:24px; height:2px; background:var(--forest); border-radius:2px; }
  .mobile-menu{
    display:none; flex-direction:column; gap:2px; background:var(--white);
    border-bottom:1px solid var(--line); padding:10px 28px 20px;
  }
  .mobile-menu a{ padding:12px 0; border-bottom:1px solid var(--line); font-weight:500; font-size:15px; }
  .mobile-menu.open{ display:flex; }

  /* ===== HERO ===== */
  .hero{
    position:relative;
    padding:88px 0 100px;
    background:
      radial-gradient(900px 480px at 82% -10%, rgba(47,213,136,.14), transparent 60%),
      linear-gradient(180deg,#FBFDFC 0%, #F3FAF6 100%);
    overflow:hidden;
  }
  .hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
  .hero h1{ font-size:clamp(36px,5vw,58px); color:var(--ink); }
  .hero h1 .accent{ color:var(--green); }
  .hero p.lead{ margin-top:22px; font-size:18px; color:#3E5A50; max-width:520px; }
  .hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
  .hero-stats{ display:flex; gap:34px; margin-top:52px; flex-wrap:wrap; }
  .hero-stats .stat b{ font-family:'Space Grotesk'; font-size:24px; display:block; color:var(--forest); }
  .hero-stats .stat span{ font-size:13px; color:#5E7A70; }
  .hero-visual{ position:relative; height:460px; border-radius:24px; overflow:hidden;
    background:linear-gradient(160deg,#0E3B2E, #103F30 55%, #0A2A20);
    box-shadow:0 30px 60px -20px rgba(10,42,32,.45);
  }
  #hero-canvas{ position:absolute; inset:0; width:100%; height:100%; }
  .hero-visual-badge{
    position:absolute; left:20px; bottom:20px; background:rgba(255,255,255,.1);
    backdrop-filter:blur(6px); border:1px solid rgba(255,255,255,.18);
    color:#fff; padding:10px 16px; border-radius:12px; font-size:13px; display:flex; gap:10px; align-items:center;
  }
  .hero-visual-badge .dot{ width:8px; height:8px; border-radius:50%; background:var(--green-bright); }

  /* ===== CARD GRIDS ===== */
  .grid{ display:grid; gap:22px; }
  .grid-3{ grid-template-columns:repeat(3,1fr); }
  .grid-4{ grid-template-columns:repeat(4,1fr); }
  .card{
    background:var(--white); border:1px solid var(--line); border-radius:16px;
    padding:30px 26px; transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  }
  .card:hover{ transform:translateY(-4px); box-shadow:0 18px 34px -18px rgba(14,59,46,.28); border-color:#C6E4D6; }
  .card .icon{
    width:46px; height:46px; border-radius:12px; background:var(--sage); color:var(--forest);
    display:flex; align-items:center; justify-content:center; margin-bottom:18px;
  }
  .card h3{ font-size:18px; margin-bottom:8px; }
  .card p{ font-size:14.5px; color:#54685F; }
  .card .tag{ display:inline-block; margin-top:14px; font-size:12px; font-weight:600; color:var(--forest-2); background:var(--sage); padding:5px 10px; border-radius:100px;}

  /* course card */
  .course-card{ display:flex; flex-direction:column; height:100%; }
  .course-meta{ display:flex; gap:10px; margin:12px 0 16px; font-size:12.5px; color:#5E7A70; }
  .course-meta span{ background:var(--sage); padding:4px 10px; border-radius:100px; }
  .course-card .cta-link{
    margin-top:auto; padding-top:16px; font-weight:600; font-size:14px; color:var(--forest);
    display:flex; align-items:center; gap:6px; border-top:1px solid var(--line);
  }

  /* ===== SPLIT SECTION (English) ===== */
  .split{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
  .split-visual{
    border-radius:20px; background:linear-gradient(150deg,var(--sage),#fff);
    border:1px solid var(--line); padding:36px; height:100%;
  }
  .skill-row{ display:flex; align-items:center; gap:14px; padding:14px 0; border-bottom:1px solid var(--line);}
  .skill-row:last-child{ border-bottom:none; }
  .skill-row .dot{ width:8px; height:8px; border-radius:50%; background:var(--green); flex-shrink:0;}

  /* ===== AI SECTION (dark) ===== */
  .ai-section{
    background:linear-gradient(160deg,#0A2A20,#0E3B2E 60%,#0A2A20);
    color:#fff; border-radius:28px; position:relative; overflow:hidden;
  }
  .ai-section .wrap{ padding:88px 28px; position:relative; z-index:2; }
  .ai-section h2{ color:#fff; font-size:clamp(28px,3.6vw,42px); max-width:640px; }
  .ai-section p{ color:#B9D4C7; max-width:560px; margin-top:16px; font-size:16.5px; }
  .ai-pills{ display:flex; flex-wrap:wrap; gap:12px; margin-top:34px; }
  .ai-pills span{
    border:1px solid rgba(255,255,255,.22); color:#EAF6F0; padding:9px 16px; border-radius:100px; font-size:14px;
  }
  #ai-canvas{ position:absolute; inset:0; opacity:.5; z-index:1; }

  /* ===== LIVE CLASSES ===== */
  .live-grid{ grid-template-columns:repeat(4,1fr); }

  /* ===== QURAN SECTION ===== */
  .quran{
    background:var(--white); border:1px solid var(--line); border-radius:24px;
    padding:64px 48px; display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center;
  }
  .quran-motif{
    height:220px; border-radius:18px; background:var(--sage);
    display:flex; align-items:center; justify-content:center;
  }
  .quran-motif svg{ width:110px; height:110px; color:var(--forest); }

  /* ===== WHY CHOOSE ===== */
  .why-grid{ grid-template-columns:repeat(3,1fr); }

  /* ===== CATEGORY GRID ===== */
  .cat-grid{ grid-template-columns:repeat(4,1fr); }
  .cat-item{
    background:var(--white); border:1px solid var(--line); border-radius:14px; padding:20px;
    display:flex; align-items:center; gap:12px; font-size:14.5px; font-weight:500;
    transition:all .25s ease; cursor:pointer;
  }
  .cat-item:hover{ border-color:var(--green); background:var(--sage); transform:translateY(-3px); }
  .cat-item .dot-icon{ width:34px; height:34px; border-radius:9px; background:var(--sage); color:var(--forest); display:flex; align-items:center; justify-content:center; flex-shrink:0;}

  /* ===== CERTIFICATE ===== */
  .cert-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
  .cert-mock{
    background:linear-gradient(155deg,#0E3B2E,#12503E);
    border-radius:20px; padding:42px; color:#fff; position:relative;
    box-shadow:0 30px 60px -20px rgba(14,59,46,.4);
  }
  .cert-mock::before{
    content:''; position:absolute; inset:14px; border:1px solid rgba(255,255,255,.25); border-radius:12px;
  }
  .cert-mock .cm-top{ display:flex; justify-content:space-between; align-items:center; }
  .cert-mock h4{ color:#fff; font-size:13px; letter-spacing:.06em; font-weight:600; }
  .cert-mock .cm-title{ font-family:'Space Grotesk'; font-size:26px; margin:38px 0 8px; }
  .cert-mock .cm-name{ color:#B9D4C7; font-size:15px; }
  .cert-mock .cm-foot{ display:flex; justify-content:space-between; align-items:flex-end; margin-top:52px; font-size:12px; color:#9FC2B2; }

  /* ===== STATS STRIP ===== */
  .stats-strip{
    background:var(--forest); border-radius:24px; color:#fff;
    display:grid; grid-template-columns:repeat(4,1fr); text-align:center;
  }
  .stats-strip .stat-box{ padding:44px 20px; border-right:1px solid rgba(255,255,255,.14); }
  .stats-strip .stat-box:last-child{ border-right:none; }
  .stats-strip .num{ font-family:'Space Grotesk'; font-size:38px; font-weight:700; color:var(--green-bright); }
  .stats-strip .label{ font-size:13.5px; color:#CFE6DA; margin-top:6px; }

  /* ===== CTA BANNER ===== */
  .cta-banner{
    background:linear-gradient(135deg,#12503E,#0E3B2E);
    border-radius:28px; padding:72px 48px; text-align:center; color:#fff;
  }
  .cta-banner h2{ color:#fff; font-size:clamp(28px,4vw,44px); max-width:680px; margin:0 auto 16px; }
  .cta-banner p{ color:#C7E2D4; max-width:560px; margin:0 auto; font-size:16.5px; }
  .cta-banner .hero-actions{ justify-content:center; margin-top:32px; }

  /* ===== CONTACT ===== */
  .contact-grid{ display:grid; grid-template-columns:1fr 1.15fr; gap:48px; }
  .contact-info .info-row{ display:flex; gap:14px; align-items:flex-start; padding:16px 0; border-bottom:1px solid var(--line); }
  .contact-info .info-row .icon{ margin-bottom:0; }
  .whatsapp-cta{
    margin-top:24px; display:flex; align-items:center; gap:12px; background:var(--sage);
    padding:16px 20px; border-radius:14px; font-weight:600; color:var(--forest);
  }
  .form-card{ background:#fff; border:1px solid var(--line); border-radius:18px; padding:34px; }
  .form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px; }
  .form-field{ display:flex; flex-direction:column; gap:6px; }
  .form-field.full{ grid-column:1/-1; }
  .form-field label{ font-size:13px; font-weight:600; color:#3B5A4E; }
  .form-field input, .form-field select, .form-field textarea{
    border:1px solid var(--line); border-radius:10px; padding:12px 14px; font-family:inherit; font-size:14.5px;
    background:var(--paper); outline:none; transition:border-color .2s ease;
  }
  .form-field input:focus, .form-field select:focus, .form-field textarea:focus{ border-color:var(--green); }

  /* ===== FOOTER ===== */
  footer{ background:#0A2A20; color:#CFE6DA; padding:72px 0 28px; margin-top:100px; }
  .footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.1); }
  .footer-grid h4{ color:#fff; font-size:14px; margin-bottom:18px; }
  .footer-grid li{ margin-bottom:11px; font-size:14px; }
  .footer-grid a:hover{ color:#fff; }
  .footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; font-size:13px; color:#87A99A; flex-wrap:wrap; gap:14px; }
  .social{ display:flex; gap:10px; }
  .social a{ width:36px; height:36px; border-radius:50%; border:1px solid rgba(255,255,255,.18); display:flex; align-items:center; justify-content:center; }

  /* ===== UTILITIES ===== */
  .reveal{ opacity:0; transform:translateY(24px); }
  .center{ text-align:center; margin-left:auto; margin-right:auto; }

  @media (prefers-reduced-motion: reduce){
    .reveal{ opacity:1; transform:none; }
  }

  /* ===== RESPONSIVE ===== */
  @media (max-width:1024px){
    .grid-3, .grid-4, .live-grid, .why-grid, .cat-grid{ grid-template-columns:repeat(2,1fr); }
    .hero-grid{ grid-template-columns:1fr; }
    .hero-visual{ height:340px; order:-1; }
    .split, .quran, .cert-wrap{ grid-template-columns:1fr; }
    .contact-grid{ grid-template-columns:1fr; }
    .stats-strip{ grid-template-columns:repeat(2,1fr); }
    .stats-strip .stat-box:nth-child(2){ border-right:none; }
  }
  @media (max-width:720px){
    nav.links{ display:none; }
    .hamburger{ display:flex; }
    .nav-cta .btn-primary{ display:none; }
    .grid-3, .grid-4, .live-grid, .why-grid, .cat-grid{ grid-template-columns:1fr; }
    .section{ padding:72px 0; }
    .form-row{ grid-template-columns:1fr; }
    .footer-grid{ grid-template-columns:1fr 1fr; }
    .quran{ padding:40px 26px; }
    .ai-section .wrap{ padding:64px 24px; }
  }