/* ============================================
   RSW — Sürdürülebilirlik ve Bilgi Teknolojileri
   Palet: logo mavisi (#1B75BC / #29ABE2) + sürdürülebilirlik yeşili (#00B96B)
   ============================================ */

:root{
  --primary:#1B75BC;
  --primary-light:#29ABE2;
  --primary-dark:#145A91;
  --accent:#00B96B;
  --accent-light:#2BD98D;
  --bg:#0B1622;
  --bg-2:#0F1D2E;
  --bg-3:#142639;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.10);
  --border-2:rgba(255,255,255,.16);
  --text:#F2F7FB;
  --text-muted:rgba(242,247,251,.66);
  --text-dim:rgba(242,247,251,.44);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:24px;
  --shadow:0 18px 48px rgba(0,0,0,.42);
  --grad:linear-gradient(135deg,#29ABE2 0%,#1B75BC 100%);
  --grad-green:linear-gradient(135deg,#2BD98D 0%,#00B96B 100%);
  --grad-mix:linear-gradient(135deg,#29ABE2 0%,#1B75BC 52%,#00B96B 100%);
  --ff:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --ff-display:'Space Grotesk','Inter',sans-serif;
  --tr:.3s cubic-bezier(.4,0,.2,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ff);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

h1,h2,h3,h4{font-family:var(--ff-display);line-height:1.22;font-weight:700}
h1{font-size:clamp(2.1rem,5.2vw,3.9rem);letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.6vw,2.7rem);letter-spacing:-.015em}
h3{font-size:1.2rem}

.gradient-text{
  background:var(--grad-mix);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ---------- PRELOADER ---------- */
.preloader{
  position:fixed;inset:0;z-index:9999;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .5s,visibility .5s;
}
.preloader.hidden{opacity:0;visibility:hidden;pointer-events:none}
.preloader-inner{text-align:center}
.preloader-logo-img{width:190px;margin:0 auto 22px;filter:brightness(0) invert(1);opacity:.92}
.preloader-bar{width:190px;height:3px;background:var(--surface-2);border-radius:3px;overflow:hidden;margin:0 auto}
.preloader-progress{height:100%;width:40%;background:var(--grad);border-radius:3px;animation:preload 1.2s ease-in-out infinite}
@keyframes preload{0%{transform:translateX(-100%)}100%{transform:translateX(320%)}}

/* ---------- NAVBAR ---------- */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:16px 0;
  transition:var(--tr);
  border-bottom:1px solid transparent;
}
.navbar.scrolled{
  background:rgba(11,22,34,.88);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--border);
  padding:10px 0;
}
.nav-container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-logo-img{height:38px;width:auto;filter:brightness(0) invert(1)}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-link{
  font-size:.92rem;font-weight:500;color:var(--text-muted);
  position:relative;padding:6px 0;transition:var(--tr);white-space:nowrap;
}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--grad);border-radius:2px;transition:width var(--tr);
}
.nav-link:hover,.nav-link.active{color:var(--text)}
.nav-link:hover::after,.nav-link.active::after{width:100%}

.nav-right{display:flex;align-items:center;gap:14px}
.nav-cta{
  background:var(--grad);color:#fff;
  padding:10px 22px;border-radius:100px;
  font-size:.9rem;font-weight:600;white-space:nowrap;
  transition:var(--tr);box-shadow:0 6px 20px rgba(27,117,188,.34);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(27,117,188,.48)}

/* lang */
.lang-switcher{position:relative}
.lang-btn{
  display:flex;align-items:center;gap:7px;
  background:var(--surface);border:1px solid var(--border);
  color:var(--text);padding:8px 13px;border-radius:100px;
  cursor:pointer;font-size:.85rem;font-weight:500;transition:var(--tr);
}
.lang-btn:hover{background:var(--surface-2);border-color:var(--border-2)}
.lang-btn i{font-size:.65rem;opacity:.6}
.lang-dropdown{
  position:absolute;top:calc(100% + 10px);right:0;min-width:172px;
  background:#132436;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:6px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:var(--tr);box-shadow:var(--shadow);
}
.lang-dropdown.open{opacity:1;visibility:visible;transform:translateY(0)}
.lang-option{
  display:block;width:100%;text-align:left;
  background:none;border:none;color:var(--text-muted);
  padding:9px 13px;border-radius:8px;cursor:pointer;
  font-size:.88rem;transition:var(--tr);
}
.lang-option:hover{background:var(--surface-2);color:var(--text)}
.lang-option.active{background:rgba(41,171,226,.14);color:var(--primary-light);font-weight:600}

/* hamburger */
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:var(--tr)}

/* mobile */
.mobile-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:1001;
  opacity:0;visibility:hidden;transition:var(--tr);
  backdrop-filter:blur(3px);
}
.mobile-overlay.active{opacity:1;visibility:visible}
.mobile-menu{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:1002;
  background:#0F1D2E;border-left:1px solid var(--border);
  padding:22px;transform:translateX(100%);transition:transform var(--tr);
  overflow-y:auto;
}
.mobile-menu.active{transform:translateX(0)}
.mobile-menu-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.mobile-close{background:none;border:none;color:var(--text);font-size:2rem;line-height:1;cursor:pointer}
.mobile-menu-links{display:flex;flex-direction:column;gap:4px}
.mobile-menu-links a{
  padding:13px 14px;border-radius:var(--radius-sm);
  color:var(--text-muted);font-weight:500;transition:var(--tr);
}
.mobile-menu-links a:hover{background:var(--surface-2);color:var(--text)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:100px;
  font-size:.95rem;font-weight:600;
  cursor:pointer;border:none;transition:var(--tr);white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 26px rgba(27,117,188,.36)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(27,117,188,.5)}
.btn-glass{background:var(--surface);color:var(--text);border:1px solid var(--border-2);backdrop-filter:blur(10px)}
.btn-glass:hover{background:var(--surface-2);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary-dark)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.24)}
.btn-glass-white{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32)}
.btn-glass-white:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
.btn-full{width:100%}
.btn-ultimate{background:var(--grad-green)!important;color:#04231A!important}

/* ---------- SECTION SHARED ---------- */
section{padding:96px 0;position:relative}
.section-header{text-align:center;max-width:760px;margin:0 auto 56px}
.section-header h2{margin-bottom:16px}
.section-header p{color:var(--text-muted);font-size:1.05rem}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(41,171,226,.12);border:1px solid rgba(41,171,226,.26);
  color:var(--primary-light);
  padding:7px 16px;border-radius:100px;
  font-size:.82rem;font-weight:600;margin-bottom:18px;
  letter-spacing:.01em;
}
.section-tag.green{background:rgba(0,185,107,.12);border-color:rgba(0,185,107,.3);color:var(--accent-light)}

/* ---------- HERO ---------- */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding:140px 0 88px;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.hero-gradient{
  position:absolute;inset:0;
  background:radial-gradient(ellipse 90% 60% at 50% -10%,rgba(41,171,226,.20),transparent 62%),
             radial-gradient(ellipse 70% 55% at 88% 105%,rgba(0,185,107,.16),transparent 62%);
}
.hero-grid-pattern{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(ellipse 75% 62% at 50% 42%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 75% 62% at 50% 42%,#000 40%,transparent 100%);
}
.hero-orb{position:absolute;border-radius:50%;filter:blur(88px);opacity:.34}
.orb-1{width:460px;height:460px;background:var(--primary-light);top:-10%;left:-8%;animation:float 19s ease-in-out infinite}
.orb-2{width:400px;height:400px;background:var(--accent);bottom:-14%;right:-6%;animation:float 23s ease-in-out infinite reverse}
.orb-3{width:300px;height:300px;background:var(--primary);top:44%;left:52%;animation:float 27s ease-in-out infinite}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(34px,-46px)}}

.hero-content{max-width:920px;margin:0 auto;text-align:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--border-2);
  padding:9px 20px;border-radius:100px;
  font-size:.86rem;font-weight:500;color:var(--text-muted);
  margin-bottom:26px;backdrop-filter:blur(10px);
}
.hero-badge i{color:var(--accent-light)}
.hero h1{margin-bottom:22px}
.hero-desc{
  font-size:clamp(1rem,1.5vw,1.14rem);color:var(--text-muted);
  max-width:720px;margin:0 auto 36px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:66px}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:880px;margin:0 auto;
}
.hero-stat{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 16px;
  backdrop-filter:blur(10px);transition:var(--tr);
}
.hero-stat:hover{transform:translateY(-4px);border-color:rgba(41,171,226,.34);background:var(--surface-2)}
.stat-number{
  display:block;font-family:var(--ff-display);font-size:1.85rem;font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;margin-bottom:4px;
}
.stat-label{font-size:.84rem;color:var(--text-dim)}

/* ---------- TRUSTED ---------- */
.trusted{padding:52px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg-2)}
.trusted-label{text-align:center;font-size:.8rem;letter-spacing:.11em;text-transform:uppercase;color:var(--text-dim);margin-bottom:26px}
.trusted-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:16px 44px}
.trusted-item{
  font-family:var(--ff-display);font-size:1.02rem;font-weight:600;
  color:var(--text-dim);transition:var(--tr);
}
.trusted-item:hover{color:var(--primary-light)}

/* ---------- THREE PILLARS ---------- */
.pillars-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:24px}
.pillar-card{
  position:relative;display:block;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:34px 28px 30px;
  transition:var(--tr);overflow:hidden;
}
.pillar-card::before{
  content:'';position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad-mix);transform:scaleX(0);transform-origin:left;transition:transform var(--tr);
}
.pillar-card:hover{transform:translateY(-6px);border-color:rgba(41,171,226,.34);background:var(--surface-2);box-shadow:var(--shadow)}
.pillar-card:hover::before{transform:scaleX(1)}
.pillar-icon{
  width:58px;height:58px;border-radius:16px;margin-bottom:20px;
  background:var(--grad);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.45rem;box-shadow:0 8px 24px rgba(27,117,188,.3);
}
.pillar-card:nth-child(2) .pillar-icon{background:linear-gradient(135deg,#5BC0F8,#1B75BC)}
.pillar-card:nth-child(3) .pillar-icon{background:var(--grad-green);box-shadow:0 8px 24px rgba(0,185,107,.3)}
.pillar-card h3{font-size:1.22rem;margin-bottom:11px}
.pillar-card p{color:var(--text-muted);font-size:.94rem;line-height:1.7;margin-bottom:18px}
.pillar-powered{
  display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.03em;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  color:var(--text-dim);padding:5px 13px;border-radius:100px;
}
.pillar-arrow{
  position:absolute;right:26px;bottom:28px;
  color:var(--primary-light);opacity:0;transform:translateX(-6px);transition:var(--tr);
}
.pillar-card:hover .pillar-arrow{opacity:1;transform:translateX(0)}

/* ---------- INVENTORY ---------- */
.inventory{position:relative}
.inventory::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 50% at 85% 0%,rgba(41,171,226,.10),transparent 62%);
}
.inventory>.container{position:relative}
.inv-lead{
  background:linear-gradient(135deg,rgba(41,171,226,.10),rgba(0,185,107,.05));
  border-color:rgba(41,171,226,.24);
}
.inv-lead i{color:var(--primary-light)}
.inventory-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:22px;margin-bottom:56px}
.inventory-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px 22px;
  transition:var(--tr);position:relative;overflow:hidden;
}
.inventory-card::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);transform:scaleY(0);transform-origin:top;transition:transform var(--tr);
}
.inventory-card:hover{transform:translateY(-5px);border-color:rgba(41,171,226,.32);background:var(--surface-2)}
.inventory-card:hover::before{transform:scaleY(1)}
.inventory-icon{
  width:48px;height:48px;border-radius:13px;
  background:rgba(41,171,226,.12);border:1px solid rgba(41,171,226,.24);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary-light);font-size:1.18rem;margin-bottom:16px;
}
.inventory-card h3{font-size:1.05rem;margin-bottom:9px}
.inventory-card p{color:var(--text-muted);font-size:.91rem;line-height:1.66}

.inv-stats-block{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:40px 34px;text-align:center;
}
.inv-stats-block h3{font-size:1.34rem;margin-bottom:30px}
.inv-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:22px}
.inv-stat{padding:6px 10px}
.inv-stat .stat-number{font-size:2rem}

/* ---------- SUSTAINABILITY ---------- */
.sustain{background:var(--bg-2);position:relative}
.sustain::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 50% at 15% 0%,rgba(0,185,107,.09),transparent 60%);
}
.sustain>.container{position:relative}
.sustain-lead{
  display:flex;gap:18px;align-items:flex-start;
  max-width:840px;margin:0 auto 48px;
  background:linear-gradient(135deg,rgba(0,185,107,.10),rgba(41,171,226,.06));
  border:1px solid rgba(0,185,107,.22);
  border-radius:var(--radius);padding:24px 28px;
}
.sustain-lead i{color:var(--accent);font-size:1.3rem;flex-shrink:0;margin-top:3px;opacity:.7}
.sustain-lead p{color:var(--text);font-size:1.04rem;line-height:1.7}

.sustain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin-bottom:64px}
.sustain-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px 24px;
  transition:var(--tr);position:relative;overflow:hidden;
}
.sustain-card::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad-green);transform:scaleY(0);transform-origin:top;transition:transform var(--tr);
}
.sustain-card:hover{transform:translateY(-5px);border-color:rgba(0,185,107,.3);background:var(--surface-2)}
.sustain-card:hover::before{transform:scaleY(1)}
.sustain-icon{
  width:50px;height:50px;border-radius:13px;
  background:rgba(0,185,107,.13);border:1px solid rgba(0,185,107,.24);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent-light);font-size:1.24rem;margin-bottom:18px;
}
.sustain-card h3{margin-bottom:10px;font-size:1.09rem}
.sustain-card p{color:var(--text-muted);font-size:.93rem;line-height:1.68}

.standards-block{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:44px 34px;text-align:center;
}
.standards-block h3{font-size:1.4rem;margin-bottom:10px}
.standards-block>p{color:var(--text-muted);margin-bottom:28px;font-size:.98rem}
.standards-list{display:flex;flex-wrap:wrap;justify-content:center;gap:11px}
.standard-chip{
  background:rgba(41,171,226,.10);border:1px solid rgba(41,171,226,.24);
  color:var(--text);padding:9px 19px;border-radius:100px;
  font-size:.88rem;font-weight:600;transition:var(--tr);
}
.standard-chip:hover{background:rgba(0,185,107,.14);border-color:rgba(0,185,107,.34);transform:translateY(-2px)}

/* ---------- SERVICES ---------- */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:24px}
.service-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:32px 26px;
  transition:var(--tr);position:relative;overflow:hidden;
}
.service-card::after{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity var(--tr);
  background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(41,171,226,.10),transparent 70%);
}
.service-card:hover{transform:translateY(-6px);border-color:rgba(41,171,226,.32);background:var(--surface-2);box-shadow:var(--shadow)}
.service-card:hover::after{opacity:1}
.service-icon-wrap{margin-bottom:20px}
.service-icon{
  width:56px;height:56px;border-radius:15px;
  background:var(--grad);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.4rem;box-shadow:0 8px 22px rgba(27,117,188,.32);
}
.service-card h3{margin-bottom:11px}
.service-card p{color:var(--text-muted);font-size:.94rem;line-height:1.7;margin-bottom:18px}
.service-tags{display:flex;flex-wrap:wrap;gap:8px}
.service-tags span{
  background:rgba(41,171,226,.10);border:1px solid rgba(41,171,226,.22);
  color:var(--primary-light);padding:5px 12px;border-radius:100px;font-size:.76rem;font-weight:600;
}

/* ---------- SOLUTIONS ---------- */
.solutions{background:var(--bg-2)}
.solutions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.solution-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px 22px;
  transition:var(--tr);text-align:center;
}
.solution-card:hover{transform:translateY(-5px);border-color:rgba(41,171,226,.3);background:var(--surface-2)}
.solution-icon{
  width:52px;height:52px;border-radius:14px;margin:0 auto 16px;
  background:rgba(41,171,226,.12);border:1px solid rgba(41,171,226,.22);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary-light);font-size:1.28rem;
}
.solution-card h3{font-size:1.05rem;margin-bottom:9px}
.solution-card p{color:var(--text-muted);font-size:.89rem;line-height:1.62}

/* ---------- HOW IT WORKS ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:26px}
.step-card{position:relative;padding:8px 4px}
.step-number{
  font-family:var(--ff-display);font-size:2.6rem;font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;line-height:1;margin-bottom:14px;
}
.step-line{
  position:absolute;top:22px;left:64px;right:-26px;height:1px;
  background:linear-gradient(90deg,rgba(41,171,226,.4),transparent);
}
.step-card h3{margin-bottom:10px;font-size:1.09rem}
.step-card p{color:var(--text-muted);font-size:.93rem;line-height:1.7}

/* ---------- FEATURES ---------- */
.features-highlight{background:var(--bg-2)}
.features-hl-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.features-hl-content h2{margin-bottom:32px}
.feature-hl-list{display:flex;flex-direction:column;gap:22px}
.feature-hl-item{display:flex;gap:16px;align-items:flex-start}
.feature-hl-icon{
  width:46px;height:46px;border-radius:12px;flex-shrink:0;
  background:rgba(41,171,226,.12);border:1px solid rgba(41,171,226,.22);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary-light);font-size:1.1rem;
}
.feature-hl-item h4{font-size:1.03rem;margin-bottom:5px}
.feature-hl-item p{color:var(--text-muted);font-size:.91rem;line-height:1.65}

.ai-visual-card{
  background:#0C1B2A;border:1px solid var(--border-2);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);
}
.ai-visual-header{
  display:flex;align-items:center;gap:8px;
  padding:14px 18px;background:rgba(255,255,255,.035);
  border-bottom:1px solid var(--border);
}
.ai-dot{width:11px;height:11px;border-radius:50%;background:#FF5F57}
.ai-dot.yellow{background:#FEBC2E}
.ai-dot.green{background:#28C840}
.ai-visual-header span{margin-left:8px;font-size:.8rem;color:var(--text-dim);font-family:var(--ff-display)}
.ai-visual-body{padding:22px 18px;display:flex;flex-direction:column;gap:14px;min-height:330px}
.ai-chat-line{display:flex;gap:10px;align-items:flex-end}
.ai-chat-line.outgoing{flex-direction:row-reverse}
.ai-avatar{
  width:32px;height:32px;border-radius:50%;flex-shrink:0;
  background:var(--surface-2);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:.78rem;color:var(--text-dim);
}
.ai-avatar.ai{background:var(--grad);color:#fff;border:none}
.ai-bubble{
  max-width:78%;padding:11px 15px;border-radius:15px;
  font-size:.88rem;line-height:1.55;
  background:var(--surface-2);border:1px solid var(--border);
  border-bottom-left-radius:5px;
}
.ai-bubble.ai{
  background:var(--grad);border:none;color:#fff;
  border-bottom-left-radius:15px;border-bottom-right-radius:5px;
}
.ai-typing{display:flex;gap:5px;padding:10px 15px;width:fit-content;background:var(--surface-2);border-radius:15px;border:1px solid var(--border)}
.ai-typing span{width:7px;height:7px;border-radius:50%;background:var(--text-dim);animation:typing 1.4s infinite}
.ai-typing span:nth-child(2){animation-delay:.2s}
.ai-typing span:nth-child(3){animation-delay:.4s}
@keyframes typing{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}

/* ---------- PRICING ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:24px;align-items:stretch}
.pricing-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px 26px;
  display:flex;flex-direction:column;position:relative;transition:var(--tr);
}
.pricing-card:hover{transform:translateY(-6px);border-color:rgba(41,171,226,.32);background:var(--surface-2)}
.pricing-card.popular{
  border-color:rgba(0,185,107,.42);
  background:linear-gradient(180deg,rgba(0,185,107,.07),var(--surface));
  box-shadow:0 14px 44px rgba(0,185,107,.14);
}
.popular-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--grad-green);color:#04231A;
  padding:6px 18px;border-radius:100px;
  font-size:.76rem;font-weight:700;white-space:nowrap;
  box-shadow:0 6px 18px rgba(0,185,107,.36);
}
.pricing-tier-badge{
  display:inline-block;align-self:flex-start;
  padding:5px 13px;border-radius:100px;
  font-size:.73rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim);
  margin-bottom:18px;
}
.starter-badge{color:var(--accent-light);border-color:rgba(0,185,107,.3);background:rgba(0,185,107,.1)}
.professional-badge{color:var(--primary-light);border-color:rgba(41,171,226,.3);background:rgba(41,171,226,.1)}
.enterprise-badge{color:#FFB84D;border-color:rgba(255,184,77,.3);background:rgba(255,184,77,.1)}
.ultimate-badge{color:#C79BFF;border-color:rgba(199,155,255,.3);background:rgba(199,155,255,.1)}
.pricing-icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:16px;
  background:var(--surface-2);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary-light);font-size:1.24rem;
}
.pricing-card h3{margin-bottom:5px}
.pricing-tagline{color:var(--primary-light);font-size:.86rem;font-weight:600;margin-bottom:11px}
.pricing-desc{color:var(--text-muted);font-size:.88rem;line-height:1.62;margin-bottom:20px;min-height:56px}
.pricing-price{display:flex;align-items:baseline;gap:3px;margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.price-currency{font-size:1.1rem;color:var(--text-muted)}
.price-amount{font-family:var(--ff-display);font-size:1.5rem;font-weight:700;color:var(--text)}
.price-period{font-size:.86rem;color:var(--text-dim)}
.pricing-features{display:flex;flex-direction:column;gap:10px;margin-bottom:26px;flex:1}
.pricing-features li{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;line-height:1.5}
.pricing-features li i{font-size:.78rem;margin-top:4px;flex-shrink:0}
.pricing-features li.included{color:var(--text-muted)}
.pricing-features li.included i{color:var(--accent)}
.pricing-features li.disabled{color:var(--text-dim);opacity:.5}
.pricing-features li.disabled i{color:var(--text-dim)}
.btn-card{
  display:block;text-align:center;padding:13px 20px;border-radius:100px;
  background:var(--surface-2);border:1px solid var(--border-2);
  color:var(--text);font-weight:600;font-size:.92rem;transition:var(--tr);
}
.btn-card:hover{background:var(--grad);border-color:transparent;transform:translateY(-2px)}
.pricing-card.popular .btn-card{background:var(--grad-green);border:none;color:#04231A}

/* ---------- ARTICLES ---------- */
.articles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.article-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:var(--tr);
}
.article-card:hover{transform:translateY(-6px);border-color:rgba(0,185,107,.3);background:var(--surface-2);box-shadow:var(--shadow)}
.article-thumb{
  height:126px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(41,171,226,.16),rgba(0,185,107,.13));
  border-bottom:1px solid var(--border);position:relative;
}
.article-thumb i{font-size:2.5rem;color:rgba(255,255,255,.82)}
.article-body{padding:24px;display:flex;flex-direction:column;flex:1}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;font-size:.78rem;color:var(--text-dim)}
.article-cat{
  background:rgba(0,185,107,.12);border:1px solid rgba(0,185,107,.26);
  color:var(--accent-light);padding:3px 11px;border-radius:100px;font-weight:600;
}
.article-card h3{font-size:1.08rem;line-height:1.42;margin-bottom:11px}
.article-card p{color:var(--text-muted);font-size:.9rem;line-height:1.66;margin-bottom:18px;flex:1}
.article-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary-light);font-weight:600;font-size:.9rem;transition:var(--tr);
}
.article-link:hover{gap:12px;color:var(--accent-light)}

/* article detail page */
.article-page{padding:150px 0 90px;min-height:100vh}
.article-page-inner{max-width:780px;margin:0 auto}
.article-back{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--text-muted);font-size:.92rem;font-weight:500;
  margin-bottom:30px;transition:var(--tr);
}
.article-back:hover{color:var(--primary-light);gap:13px}
.article-page h1{font-size:clamp(1.75rem,4vw,2.6rem);margin-bottom:18px;line-height:1.25}
.article-page-meta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:34px;padding-bottom:26px;border-bottom:1px solid var(--border);font-size:.86rem;color:var(--text-dim)}
.article-content{font-size:1.04rem;line-height:1.85;color:var(--text-muted)}
.article-content h3{
  font-size:1.32rem;color:var(--text);
  margin:38px 0 14px;padding-left:14px;border-left:3px solid var(--accent);
}
.article-content p{margin-bottom:19px}
.article-content strong{color:var(--text);font-weight:600}
.article-content ul,.article-content ol{margin:0 0 22px 22px;display:flex;flex-direction:column;gap:9px}
.article-content ul li{list-style:disc}
.article-content ol li{list-style:decimal}
.article-content li::marker{color:var(--accent)}

.article-cta{
  margin-top:52px;padding:34px 30px;text-align:center;
  background:linear-gradient(135deg,rgba(41,171,226,.10),rgba(0,185,107,.08));
  border:1px solid rgba(0,185,107,.24);border-radius:var(--radius-lg);
}
.article-cta h3{font-size:1.28rem;margin-bottom:10px}
.article-cta p{color:var(--text-muted);margin-bottom:22px;font-size:.96rem}

/* ---------- FAQ ---------- */
.faq{background:var(--bg-2)}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:13px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--tr)}
.faq-item.active{border-color:rgba(41,171,226,.34);background:var(--surface-2)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:none;color:var(--text);
  font-size:1rem;font-weight:600;text-align:left;cursor:pointer;
  font-family:var(--ff-display);
}
.faq-question i{color:var(--primary-light);font-size:.86rem;transition:transform var(--tr);flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.4,0,.2,1)}
.faq-answer p{padding:0 24px 22px;color:var(--text-muted);font-size:.95rem;line-height:1.75}

/* ---------- CTA ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--grad-mix);padding:80px 0}
.cta-bg{position:absolute;inset:0;overflow:hidden}
.cta-orb{position:absolute;border-radius:50%;filter:blur(76px);opacity:.28;background:#fff}
.cta-orb-1{width:340px;height:340px;top:-32%;left:6%}
.cta-orb-2{width:280px;height:280px;bottom:-38%;right:12%}
.cta-content{position:relative;text-align:center;max-width:740px;margin:0 auto}
.cta-content h2{color:#fff;margin-bottom:14px}
.cta-content p{color:rgba(255,255,255,.9);font-size:1.06rem;margin-bottom:32px}
.cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.contact-info h2{margin-bottom:14px}
.contact-info>p{color:var(--text-muted);margin-bottom:34px}
.contact-details{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;gap:15px;align-items:flex-start}
.contact-item-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  background:rgba(41,171,226,.12);border:1px solid rgba(41,171,226,.22);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary-light);font-size:1.02rem;
}
.contact-item strong{display:block;font-size:.82rem;color:var(--text-dim);font-weight:500;margin-bottom:3px}
.contact-item a,.contact-item span{color:var(--text);font-size:.96rem;font-weight:500;transition:var(--tr)}
.contact-item a:hover{color:var(--primary-light)}

.contact-form-wrap{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px;
}
.contact-form{display:flex;flex-direction:column;gap:15px}
.form-row{display:flex;gap:15px}
.form-row>*{flex:1;min-width:0}
.form-row-captcha{align-items:flex-end;gap:12px}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;padding:13px 16px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);
  font-size:.94rem;transition:var(--tr);resize:vertical;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--text-dim)}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--primary-light);background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(41,171,226,.13);
}
.contact-form select{cursor:pointer;appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237d94a8' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat:no-repeat;background-position:right 14px center;background-size:17px;padding-right:42px;
}
.contact-form select option{background:#132436;color:var(--text)}
.captcha-q{font-weight:700;font-size:1.1rem;margin-bottom:6px;color:var(--primary-light);font-family:var(--ff-display)}
.captcha-reload{
  padding:12px 16px;background:rgba(41,171,226,.14);
  border:1px solid rgba(41,171,226,.28);color:var(--text);
  border-radius:var(--radius-sm);cursor:pointer;font-size:.9rem;
  margin-bottom:1px;transition:var(--tr);
}
.captcha-reload:hover{background:rgba(41,171,226,.24)}

/* ---------- FOOTER ---------- */
.footer{background:#081220;border-top:1px solid var(--border);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-logo{width:180px;margin-bottom:18px}
.footer-brand>p{color:var(--text-muted);font-size:.92rem;line-height:1.72;margin-bottom:20px;max-width:340px}
.footer-contact-mini{display:flex;flex-direction:column;gap:9px;margin-bottom:22px}
.footer-contact-mini span,.footer-contact-mini a{
  display:flex;gap:10px;align-items:flex-start;
  color:var(--text-dim);font-size:.86rem;line-height:1.55;transition:var(--tr);
}
.footer-contact-mini i{color:var(--primary-light);margin-top:4px;font-size:.82rem;flex-shrink:0}
.footer-contact-mini a:hover{color:var(--primary-light)}
.footer-social{display:flex;gap:11px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;
  background:var(--surface);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);transition:var(--tr);
}
.footer-social a:hover{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-3px)}
.footer-links-col h4{font-size:.98rem;margin-bottom:17px;color:var(--text)}
.footer-links-col a{
  display:block;color:var(--text-muted);font-size:.89rem;
  padding:5px 0;transition:var(--tr);
}
.footer-links-col a:hover{color:var(--primary-light);transform:translateX(3px)}

.footer-powered{
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 20px;margin-bottom:24px;
  background:linear-gradient(135deg,rgba(41,171,226,.08),rgba(0,185,107,.06));
  border:1px solid rgba(41,171,226,.2);border-radius:100px;
  font-size:.86rem;color:var(--text-muted);text-align:center;
}
.footer-powered i{color:var(--accent-light)}

.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid var(--border);
}
.footer-bottom p{color:var(--text-dim);font-size:.85rem}
.footer-bottom-logo{display:flex;align-items:center;gap:9px}
.footer-bottom-logo img{width:98px;height:auto;opacity:.68;filter:grayscale(1);transition:var(--tr)}
.footer-bottom-logo a:hover img{opacity:1;filter:grayscale(0)}
.footer-bottom-logo span{font-size:.75rem;color:var(--text-dim)}

/* ---------- BACK TO TOP ---------- */
.back-to-top{
  position:fixed;bottom:28px;right:28px;z-index:900;
  width:46px;height:46px;border-radius:50%;border:none;
  background:var(--grad);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:var(--tr);box-shadow:0 8px 24px rgba(27,117,188,.4);
}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(27,117,188,.54)}

/* ---------- ANIMATIONS ---------- */
.fade-in{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .nav-menu{display:none}
  .hamburger{display:flex}
  .nav-cta{display:none}
  .features-hl-grid,.contact-grid{grid-template-columns:1fr;gap:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .step-line{display:none}
}
@media (max-width:768px){
  section{padding:68px 0}
  .container{padding:0 18px}
  .hero{padding:120px 0 64px;min-height:auto}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section-header{margin-bottom:40px}
  .form-row{flex-direction:column}
  .form-row-captcha{flex-direction:row}
  .contact-form-wrap{padding:24px 20px}
  .standards-block{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-buttons{flex-direction:column}
  .cta-buttons .btn{width:100%}
  .sustain-lead{flex-direction:column;gap:12px;padding:20px}
  .article-page{padding:120px 0 64px}
  .back-to-top{bottom:18px;right:18px}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:1fr}
  .trusted-logos{gap:12px 24px}
  .trusted-item{font-size:.92rem}
}