/* ============================================================
   LAMBTON KUNSTWERK — SHARED STYLES
   Used across all pages
============================================================ */

/* Avenir — loaded via CDN for cross-platform support */
@import url('https://fonts.cdnfonts.com/css/avenir');

/* Rethink Sans — used for CTA buttons */

/* Rethink Sans — used for CTA buttons and pill labels */
@import url('https://fonts.googleapis.com/css2?family=Rethink+Sans:ital,wght@0,400;0,500;0,700;1,500&display=swap');

:root {
  --avenir: "Avenir", "Avenir Next", sans-serif;
  --rethink: "Rethink Sans", "Manrope", sans-serif;
  --c-white:   #ffffff;
  --c-blue-1:  #003bff;
  --c-blue-4:  #4c75ff;
  --c-blue-5:  #6689ff;
  --c-bg-0:    #00020f;
  --c-bg-3:    #0a0c1e;
  --c-bg-4:    #0c0f26;
  --c-bg-5:    #0e122e;
  --c-bg-6:    #131839;
  --c-gray-1:  #575f75;
  --c-gray-3:  #a7adbe;
  --c-eff3ff:  #eff3ff;
  --nav-pill-bg: rgba(10,13,31,0.8);
  --nav-pill-border: rgb(35,45,107);
  --nav-active-bg: rgb(19,24,57);
  --nav-active-border: rgb(31,39,95);
  --nav-link-color: rgb(167,173,190);
  --nav-cta-grad: linear-gradient(180deg, rgba(76,117,255,1) 0%, rgba(26,79,255,1) 100%);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { background: var(--c-bg-0); color: var(--c-white); font-family: var(--avenir); line-height: 1.5; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
h1,h2,h3,h4,h5,h6,p { margin: 0; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--c-bg-0); }
::-webkit-scrollbar-thumb { background: #3362ff; border-radius: 3px; }

/* ===== NAVBAR ===== */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: linear-gradient(180deg, rgb(13,15,33) 0%, rgba(0,0,0,0) 100%); transition: background 0.4s; }
.nav.solid { background: rgba(10,13,31,0.97); backdrop-filter: blur(20px); }
.nav-container { position: relative; display: flex; align-items: center; justify-content: space-between; padding: 20px 40px; max-width: 1400px; margin: 0 auto; }
.nav-logo { position: relative; z-index: 2; flex-shrink: 0; }
.nav-logo img { height: 38px; width: auto; object-fit: contain; }
.nav-pill { position: absolute; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 4px; padding: 6px 8px; background: var(--nav-pill-bg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid var(--nav-pill-border); border-radius: 100px; z-index: 2; }
.nav-link { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 100px; border: 1px solid transparent; font-family: var(--avenir); font-size: 16px; font-weight: 500; color: var(--nav-link-color); white-space: nowrap; transition: color 0.2s, background 0.2s, border-color 0.2s; cursor: pointer; }
.nav-link:hover { color: var(--c-white); background: rgba(19,24,57,0.5); border-color: rgba(31,39,95,0.5); }
.nav-link.active { color: var(--c-white); background: var(--nav-active-bg); border-color: var(--nav-active-border); }
.nav-link-chevron { width: 12px; height: 12px; opacity: 0.6; transition: transform 0.2s; }
.nav-link:hover .nav-link-chevron { transform: rotate(180deg); opacity: 1; }
/* Nav dropdown */
.nav-link-wrap { position: relative; }
.nav-dropdown { position: absolute; top: calc(100% + 12px); left: 50%; transform: translateX(-50%) translateY(-6px); min-width: 210px; background: rgba(10,13,31,0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgb(35,45,107); border-radius: 16px; padding: 6px; opacity: 0; visibility: hidden; transition: opacity 0.2s, transform 0.2s, visibility 0.2s; z-index: 200; }
.nav-link-wrap:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dropdown a { display: block; padding: 9px 14px; border-radius: 10px; font-family: var(--avenir); font-size: 14px; font-weight: 500; color: var(--nav-link-color); transition: color 0.2s, background 0.2s; white-space: nowrap; }
.nav-dropdown a:hover { color: var(--c-white); background: rgba(19,24,57,0.7); }
.nav-cta { position: relative; z-index: 2; flex-shrink: 0; display: inline-flex; align-items: center; padding: 12px 24px; border-radius: 100px; background: var(--nav-cta-grad); font-family: var(--rethink); font-size: 18px; font-weight: 500; color: var(--c-white); transition: filter 0.2s, transform 0.2s; }
.nav-cta:hover { filter: brightness(1.12); transform: translateY(-1px); }
.nav-hamburger { display: none; position: relative; z-index: 2; flex-shrink: 0; width: 44px; height: 44px; border-radius: 100px; background: var(--c-bg-5); align-items: center; justify-content: center; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-hamburger span { display: block; width: 20px; height: 2px; background: var(--c-white); border-radius: 2px; transition: all 0.3s; }
.mobile-menu { display: none; position: fixed; inset: 0; background: rgba(10,12,30,0.98); backdrop-filter: blur(20px); z-index: 999; flex-direction: column; align-items: center; justify-content: center; gap: 32px; opacity: 0; transition: opacity 0.3s; }
.mobile-menu.open { opacity: 1; }
.mobile-menu a { font-size: 24px; font-weight: 600; color: var(--nav-link-color); transition: color 0.2s; }
.mobile-menu a:hover { color: var(--c-white); }
.mobile-close { position: absolute; top: 24px; right: 30px; font-size: 32px; color: var(--c-white); cursor: pointer; line-height: 1; }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero { position: relative; padding: 160px 40px 100px; text-align: center; overflow: hidden; background: var(--c-bg-0); min-height: 420px; display: flex; align-items: center; justify-content: center; }
.page-hero-bg { position: absolute; inset: 0; z-index: 0; }
.page-hero-bg img { width: 100%; height: 100%; object-fit: contain; object-position: center top; opacity: 0.7; }
.page-hero-content { position: relative; z-index: 2; max-width: 800px; }
.page-hero-tag { display: inline-block; font-family: var(--avenir); font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--c-blue-5); margin-bottom: 16px; }
.page-hero h1 { font-family: var(--avenir); font-size: clamp(32px,5vw,58px); font-weight: 700; line-height: 1.15; color: var(--c-white); margin-bottom: 18px; }
.page-hero p { font-family: var(--avenir); font-size: 18px; line-height: 1.6; color: var(--nav-link-color); max-width: 600px; margin: 0 auto; }

/* ===== FOOTER ===== */
.footer { background: var(--c-bg-0); border-top: 1px solid rgba(14,18,46,0.9); padding: 70px 60px 40px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 1.6fr 0.8fr 1.6fr; gap: 60px; align-items: start; margin-bottom: 50px; }
.footer-logo img { height: 34px; margin-bottom: 18px; }
.footer-about { font-family: var(--avenir); font-size: 13px; line-height: 1.7; color: var(--c-gray-3); margin-bottom: 14px; }
.footer-tagline { font-family: var(--avenir); font-size: 12px; color: var(--c-gray-1); font-style: italic; }
.footer-social { display: flex; gap: 12px; }
.social-btn { width: 38px; height: 38px; border-radius: 10px; background: var(--c-bg-4); border: 1px solid rgba(14,18,46,0.8); display: flex; align-items: center; justify-content: center; transition: border-color 0.2s, background 0.2s, transform 0.2s; }
.social-btn:hover { border-color: rgba(0,59,255,0.35); background: rgba(0,59,255,0.08); transform: translateY(-2px); }
.social-btn svg { width: 17px; height: 17px; fill: var(--c-gray-3); transition: fill 0.2s; }
.social-btn:hover svg { fill: var(--c-blue-5); }
/* ISO Badge */
.footer-iso { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding-top: 8px; }
.iso-badge { display: block; background: none; border: none; padding: 0; cursor: pointer; }
.iso-badge-ring { width: 110px; height: 110px; border-radius: 50%; border: 3px solid var(--c-blue-5); display: flex; align-items: center; justify-content: center; position: relative; transition: border-color 0.2s, box-shadow 0.2s; overflow: hidden; }
.iso-badge:hover .iso-badge-ring { border-color: var(--c-white); box-shadow: 0 0 24px rgba(102,137,255,0.3); }
/* Footer nav columns */
.footer-cols-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h4 { font-family: var(--avenir); font-size: 15px; font-weight: 700; color: var(--c-white); margin-bottom: 20px; letter-spacing: 0.3px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li a { font-family: var(--avenir); font-size: 15px; color: var(--c-gray-3); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--c-white); }
.footer-bottom { border-top: 1px solid rgba(14,18,46,0.9); padding-top: 30px; display: flex; justify-content: center; align-items: center; }
.footer-copy { font-family: var(--avenir); font-size: 14px; color: var(--c-gray-1); }
.footer-copy a { color: var(--c-blue-5); }

/* ===== BACK TO TOP ===== */
.back-top { position: fixed; bottom: 28px; right: 28px; width: 46px; height: 46px; border-radius: 50%; background: var(--nav-cta-grad); display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 500; opacity: 0; transform: translateY(20px); transition: opacity 0.3s, transform 0.3s, filter 0.2s; box-shadow: 0 4px 20px rgba(0,59,255,0.4); }
.back-top.show { opacity: 1; transform: translateY(0); }
.back-top:hover { filter: brightness(1.15); }
.back-top svg { width: 20px; height: 20px; }

/* ===== SCROLL REVEAL ===== */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}.d5{transition-delay:.5s}.d6{transition-delay:.6s}

/* ===== SHARED BUTTONS ===== */
.btn-blue { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 100px; background: var(--nav-cta-grad); font-family: var(--rethink); font-size: 17px; font-weight: 500; color: var(--c-white); box-shadow: 0 4px 24px rgba(0,59,255,0.4); transition: filter 0.2s, transform 0.2s; }
.btn-blue:hover { filter: brightness(1.12); transform: translateY(-2px); }
.btn-outline { display: inline-flex; align-items: center; padding: 13px 32px; border-radius: 100px; border: 1px solid rgba(255,255,255,0.2); font-family: var(--rethink); font-size: 17px; font-weight: 500; color: var(--c-white); transition: border-color 0.2s, background 0.2s, transform 0.2s; }
.btn-outline:hover { border-color: rgba(255,255,255,0.45); background: rgba(255,255,255,0.04); transform: translateY(-2px); }

/* ===== SECTION LABELS ===== */
.section-tag { display: inline-block; font-family: var(--avenir); font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--c-blue-5); margin-bottom: 14px; }
.section-heading { font-family: var(--avenir); font-size: clamp(28px,3.5vw,46px); font-weight: 700; line-height: 1.15; color: var(--c-white); margin-bottom: 14px; }
.section-para { font-family: var(--avenir); font-size: 17px; line-height: 1.7; color: var(--c-gray-3); }

/* ===== RESPONSIVE ===== */
@media(max-width:1199px){.nav-container{padding:18px 30px}.footer-top{grid-template-columns:1fr 1fr;gap:40px}.footer{padding:60px 30px 30px}.footer-iso{display:none}}
@media(max-width:809px){.nav-pill,.nav-cta{display:none}.nav-hamburger{display:flex}.nav-container{padding:16px 20px}.page-hero{padding:120px 20px 70px}.footer{padding:50px 20px 30px}.footer-top{grid-template-columns:1fr;gap:30px}.footer-cols-group{grid-template-columns:repeat(3,1fr);gap:16px}.footer-bottom{text-align:center}}
@media(max-width:600px){.footer-cols-group{grid-template-columns:1fr 1fr}}

/* ===== CTA SECTION ===== */
.cta-section { padding: 100px 40px; background: var(--c-bg-0); }
.cta-box { max-width: 1200px; margin: 0 auto; background: linear-gradient(135deg,rgba(0,59,255,0.14) 0%,rgba(0,36,121,0.38) 100%); border: 1px solid rgba(0,59,255,0.22); border-radius: 30px; padding: 80px; text-align: center; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: -150px; right: -150px; width: 500px; height: 500px; background: radial-gradient(circle,rgba(0,59,255,0.18) 0%,transparent 70%); filter: blur(80px); pointer-events: none; }
.cta-box::after { content: ''; position: absolute; bottom: -150px; left: -150px; width: 500px; height: 500px; background: radial-gradient(circle,rgba(0,59,255,0.12) 0%,transparent 70%); filter: blur(80px); pointer-events: none; }
.cta-content { position: relative; z-index: 1; }
.cta-heading { font-family: var(--avenir); font-size: clamp(26px,3.5vw,46px); font-weight: 700; line-height: 1.15; color: var(--c-white); margin-bottom: 16px; }
.cta-para { font-family: var(--avenir); font-size: 18px; line-height: 1.6; color: var(--c-gray-3); max-width: 500px; margin: 0 auto 40px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
@media(max-width:809px){.cta-section{padding:70px 20px}.cta-box{padding:50px 24px}.cta-btns{flex-direction:column;align-items:center}}