/* =========================================
   LAMBITECH SOLUTIONS PAGE
   ========================================= */

/* 1. VARIABLES */
:root {
  --solutions-bg: #050505;
  --solutions-panel: #0d0e10;
  --solutions-card: #0b100d;
  --solutions-white: #f7f8fa;
  --solutions-muted: #a3a5ad;
  --solutions-cyan: #00d9ff;
  --solutions-green: #9bff35;
  --solutions-line: #292a2e;
  --solutions-font: 'Inter', sans-serif;
}

/* 2. RESET AND GENERAL STYLES */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  background: var(--solutions-bg);
  color: var(--solutions-white);
  font-family: var(--solutions-font);
  font-size: 15px;
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--solutions-cyan);
  outline-offset: 4px;
}

section[id] { scroll-margin-top: 95px; }

.section-wrap {
  width: min(1200px, 90%);
  margin-inline: auto;
}

.section-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  color: var(--solutions-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.8;
  text-transform: uppercase;
}

.kicker-line {
  display: inline-block;
  flex: 0 0 34px;
  width: 34px;
  height: 1px;
  background: var(--solutions-cyan);
}

.section-lead {
  max-width: 650px;
  color: var(--solutions-muted);
  font-size: 15px;
  line-height: 1.95;
}

/* 3. HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  padding: 0 clamp(22px, 4.2vw, 68px);
  background: rgba(5, 5, 5, 0.94);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img { width: 82px; height: 68px; object-fit: contain; }

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.5vw, 38px);
}

.nav-link {
  position: relative;
  padding: 9px 0;
  color: #f0f0f0;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link:focus-visible { color: var(--solutions-cyan); }
.nav-join-wrap { position: relative; flex-shrink: 0; }

.nav-join {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 22px;
  border: 1px solid #555;
  border-radius: 30px;
  color: var(--solutions-green);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-join:hover {
  background: rgba(155, 255, 53, 0.08);
  border-color: var(--solutions-green);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 110;
  min-width: 170px;
  padding-top: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-join-wrap:hover .nav-dropdown,
.nav-join-wrap:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown button {
  width: 100%;
  padding: 14px 20px;
  color: var(--solutions-white);
  background: #101114;
  border: 1px solid var(--solutions-line);
  border-radius: 10px;
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-dropdown button:hover {
  color: var(--solutions-green);
  border-color: var(--solutions-green);
}

.menu-toggle { display: none; padding: 8px; background: transparent; border: 0; cursor: pointer; }
.menu-toggle span { display: block; width: 25px; height: 2px; margin: 5px; background: var(--solutions-white); }

/* 4. SOLUTIONS HERO */
.solutions-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 690px;
  overflow: hidden;
  isolation: isolate;
  background-color: #050706;
  background-image: url("assets/tech-lang.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Subtle technical grid above the photo */
.solutions-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 65%);
  mask-image: linear-gradient(90deg, transparent, black 65%);
}

/* Darken the left side so the text remains readable */
.solutions-hero-overlay {
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    rgba(5, 7, 6, 0.82) 0%,
    rgba(5, 7, 6, 0.60) 48%,
    rgba(5, 7, 6, 0.20) 100%
  );
}

.solutions-hero-content {
  position: relative;
  z-index: 1;
  width: min(1200px, 90%);
  margin: auto;
  padding: 105px 0 130px;
}

.solutions-hero h1 {
  max-width: 900px;
  margin: 28px 0 24px;
  font-size: clamp(46px, 7.2vw, 86px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -3.5px;
}

.solutions-hero h1 span { display: block; color: var(--solutions-cyan); }

.solutions-hero-lead {
  max-width: 630px;
  margin: 0 0 18px;
  color: var(--solutions-white);
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 500;
  line-height: 1.55;
}

.solutions-hero-description {
  max-width: 610px;
  margin: 0;
  color: #b9bdc3;
  font-size: 14px;
  line-height: 1.95;
}

.solutions-hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 25px; margin-top: 32px; }

.solutions-primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 23px;
  color: #041014;
  background: var(--solutions-cyan);
  border: 1px solid var(--solutions-cyan);
  border-radius: 30px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.solutions-primary-cta:hover { transform: translateY(-2px); box-shadow: 0 0 25px rgba(0, 217, 255, 0.17); }

.solutions-secondary-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 7px;
  color: var(--solutions-white);
  border-bottom: 1px solid var(--solutions-green);
  font-size: 12px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.solutions-secondary-cta:hover { color: var(--solutions-green); }

.solutions-hero-index {
  position: absolute;
  z-index: 1;
  bottom: 28px;
  left: 5%;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #c0c6c2;
  font-size: 9px;
  letter-spacing: 1.8px;
}

.hero-index-line { width: 26px; height: 1px; background: var(--solutions-green); }

/* 5. INTRODUCTION */
.solutions-intro {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 60px;
  padding-top: 115px;
  padding-bottom: 115px;
  border-bottom: 1px solid var(--solutions-line);
}

.solutions-intro-content { max-width: 760px; }
.solutions-intro h2 { margin: 0 0 24px; font-size: clamp(32px, 4.5vw, 53px); line-height: 1.2; letter-spacing: -1.8px; }
.solutions-intro h2 span { color: var(--solutions-cyan); }
.solutions-intro-content > p { color: var(--solutions-muted); font-size: 14px; line-height: 1.95; }
.solutions-intro-content > p:last-child { margin-bottom: 0; }

/* 6. FOUR INNOVATION PILLARS */
.innovation-pillars { padding-top: 110px; padding-bottom: 105px; }
.pillars-heading { max-width: 760px; margin-bottom: 50px; }

.pillars-heading h2,
.process-heading h2 {
  margin: 24px 0 18px;
  font-size: clamp(34px, 4.8vw, 55px);
  line-height: 1.16;
  letter-spacing: -1.8px;
}

.pillars-heading h2 span, .process-heading h2 span { color: var(--solutions-cyan); }
.pillars-heading .section-lead, .process-heading .section-lead { margin-bottom: 0; }
.pillars-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

.pillar-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 390px;
  padding: 30px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.025), transparent 65%), var(--solutions-card);
  border: 1px solid var(--solutions-line);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.pillar-card::after {
  content: "";
  position: absolute;
  top: -95px;
  right: -95px;
  width: 210px;
  height: 210px;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.045;
  pointer-events: none;
}

.pillar-card:hover { transform: translateY(-5px); }
.pillar-cyan { color: var(--solutions-cyan); }
.pillar-lime { color: var(--solutions-green); }
.pillar-cyan:hover { border-color: rgba(0, 217, 255, 0.65); }
.pillar-lime:hover { border-color: rgba(155, 255, 53, 0.65); }
.pillar-card-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.pillar-number { color: currentColor; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; }
.pillar-stage { padding: 5px 9px; color: currentColor; border: 1px solid currentColor; border-radius: 20px; font-size: 9px; font-weight: 700; letter-spacing: 1.4px; }
.pillar-symbol { display: grid; place-items: center; width: 54px; height: 54px; margin: 28px 0 25px; color: currentColor; background: rgba(255, 255, 255, 0.025); border: 1px solid currentColor; border-radius: 14px; font-size: 27px; line-height: 1; }
.pillar-technology { margin: 0 0 9px; color: currentColor; font-size: 9px; font-weight: 700; letter-spacing: 1.6px; }
.pillar-card h3 { margin: 0 0 11px; color: var(--solutions-white); font-size: clamp(23px, 2.5vw, 30px); font-weight: 600; line-height: 1.3; letter-spacing: -0.8px; }
.pillar-description { margin: 0 0 15px; color: var(--solutions-white); font-size: 15px; font-weight: 500; line-height: 1.75; }
.pillar-detail { max-width: 470px; margin: 0 0 25px; color: var(--solutions-muted); font-size: 12px; line-height: 1.95; }
.pillar-bottom-line { width: 36px; height: 2px; margin-top: auto; background: currentColor; }
.pillars-closing { display: flex; align-items: flex-start; gap: 18px; max-width: 760px; margin-top: 40px; }
.pillars-closing-mark { flex: 0 0 3px; width: 3px; min-height: 45px; background: var(--solutions-green); }
.pillars-closing p { margin: 0; color: #d4d7d8; font-size: clamp(17px, 2vw, 22px); font-weight: 500; line-height: 1.7; }

/* 7. PROBLEM-SOLVING SECTION */
.problem-section {
  overflow: hidden;
  background: radial-gradient(ellipse at 80% 50%, rgba(0, 217, 255, 0.065), transparent 40%), #090c0a;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.problem-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 65px; padding-top: 110px; padding-bottom: 110px; }
.problem-content { max-width: 640px; }
.problem-content h2 { margin: 25px 0 20px; font-size: clamp(35px, 4.5vw, 54px); line-height: 1.18; letter-spacing: -1.8px; }
.problem-content h2 span { display: block; color: var(--solutions-cyan); }
.problem-content > p:not(.section-kicker) { color: var(--solutions-muted); font-size: 14px; line-height: 1.95; }
.text-link { display: inline-flex; align-items: center; gap: 12px; margin-top: 22px; padding-bottom: 7px; border-bottom: 1px solid var(--solutions-cyan); color: var(--solutions-white); font-size: 12px; font-weight: 600; transition: color 0.2s ease; }
.text-link span { color: var(--solutions-cyan); }
.text-link:hover { color: var(--solutions-cyan); }

/* CSS-only problem visual */
.problem-visual { position: relative; width: min(100%, 390px); aspect-ratio: 1; margin: auto; }
.problem-orbit { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(0, 217, 255, 0.2); border-radius: 50%; transform: translate(-50%, -50%); }
.orbit-outer { width: 96%; height: 96%; }
.orbit-middle { width: 70%; height: 70%; border-color: rgba(155, 255, 53, 0.22); }
.orbit-inner { width: 44%; height: 44%; border-color: rgba(0, 217, 255, 0.4); }
.problem-core { position: absolute; top: 50%; left: 50%; display: grid; place-items: center; width: 86px; height: 86px; background: #081114; border: 1px solid var(--solutions-cyan); border-radius: 50%; box-shadow: 0 0 35px rgba(0, 217, 255, 0.1); transform: translate(-50%, -50%); }
.problem-core span { color: var(--solutions-cyan); font-size: 24px; font-weight: 800; letter-spacing: 2px; }
.problem-node { position: absolute; z-index: 2; display: grid; place-items: center; width: 82px; height: 82px; color: var(--solutions-white); background: #0d100f; border: 1px solid var(--solutions-line); border-radius: 50%; font-size: 9px; font-weight: 700; letter-spacing: 1.1px; }
.node-top { top: 2%; left: 50%; border-color: rgba(0, 217, 255, 0.5); transform: translateX(-50%); }
.node-left { top: 50%; left: 0; border-color: rgba(155, 255, 53, 0.5); transform: translateY(-50%); }
.node-right { top: 50%; right: 0; border-color: rgba(0, 217, 255, 0.5); transform: translateY(-50%); }
.node-bottom { bottom: 2%; left: 50%; border-color: rgba(155, 255, 53, 0.5); transform: translateX(-50%); }
.problem-connector { position: absolute; z-index: 1; display: block; width: 1px; height: 45px; background: linear-gradient(transparent, var(--solutions-cyan), transparent); }
.connector-one { top: 22%; left: 50%; }
.connector-two { right: 22%; top: 50%; width: 45px; height: 1px; background: linear-gradient(90deg, transparent, var(--solutions-cyan), transparent); }
.connector-three { bottom: 22%; left: 50%; }
.connector-four { top: 50%; left: 22%; width: 45px; height: 1px; background: linear-gradient(90deg, transparent, var(--solutions-green), transparent); }

/* 8. BUILDING PROCESS */
.building-process { padding-top: 110px; padding-bottom: 110px; }
.process-heading { max-width: 760px; margin-bottom: 48px; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.process-card { min-width: 0; padding: 27px 22px; background: var(--solutions-panel); border: 1px solid var(--solutions-line); transition: border-color 0.25s ease, transform 0.25s ease; }
.process-card:hover { transform: translateY(-4px); border-color: rgba(0, 217, 255, 0.45); }
.process-number { display: inline-block; margin-bottom: 28px; color: var(--solutions-cyan); font-size: 13px; font-weight: 700; letter-spacing: 1px; }
.process-label { margin: 0 0 10px; color: var(--solutions-green); font-size: 9px; font-weight: 700; letter-spacing: 1.6px; }
.process-card h3 { margin: 0 0 14px; color: var(--solutions-white); font-size: 18px; font-weight: 600; line-height: 1.5; }
.process-card > p:last-child { margin: 0; color: var(--solutions-muted); font-size: 12px; line-height: 1.95; }

/* 9. DEVELOPMENT STATUS */
.development-section { background: radial-gradient(ellipse at 10% 90%, rgba(155, 255, 53, 0.045), transparent 38%), #090c0a; border-top: 1px solid rgba(255, 255, 255, 0.06); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.development-inner { display: grid; grid-template-columns: 1fr 0.9fr; align-items: center; gap: 75px; padding-top: 110px; padding-bottom: 110px; }
.development-copy { max-width: 620px; }
.development-copy h2 { margin: 24px 0; font-size: clamp(34px, 4.2vw, 49px); line-height: 1.2; letter-spacing: -1.5px; }
.development-copy h2 span { display: block; color: var(--solutions-cyan); }
.development-copy > p:not(.section-kicker) { color: var(--solutions-muted); font-size: 13px; line-height: 1.95; }
.development-note { margin-top: 25px; padding-left: 17px; border-left: 2px solid var(--solutions-green); color: #d3d8d2 !important; }
.development-status { padding: 32px; background: var(--solutions-panel); border: 1px solid var(--solutions-line); }
.status-top { display: flex; align-items: center; gap: 10px; color: var(--solutions-muted); font-size: 9px; font-weight: 700; letter-spacing: 1.8px; }
.status-indicator { width: 8px; height: 8px; flex-shrink: 0; border-radius: 50%; background: var(--solutions-green); box-shadow: 0 0 12px rgba(155, 255, 53, 0.5); }
.development-status h3 { margin: 23px 0 10px; font-size: clamp(21px, 2.5vw, 28px); line-height: 1.4; }
.development-status > p:not(.status-footnote) { margin: 0; color: var(--solutions-muted); font-size: 12px; line-height: 1.9; }
.status-track { display: grid; gap: 0; margin-top: 32px; }
.status-step { position: relative; display: flex; align-items: center; gap: 14px; min-height: 48px; }
.status-step:not(:last-child)::before { content: ""; position: absolute; top: 26px; left: 5px; width: 1px; height: 24px; background: #3a3e3a; }
.status-step > span { z-index: 1; width: 11px; height: 11px; flex-shrink: 0; border: 1px solid #5b625b; border-radius: 50%; background: var(--solutions-panel); }
.status-step p { margin: 0; color: #888f89; font-size: 11px; }
.status-step.status-complete > span { background: var(--solutions-green); border-color: var(--solutions-green); }
.status-step.status-complete p { color: #d8e0d8; }
.status-step.status-current > span { border: 2px solid var(--solutions-cyan); box-shadow: 0 0 12px rgba(0, 217, 255, 0.2); }
.status-step.status-current p { color: var(--solutions-cyan); font-weight: 600; }
.status-footnote { margin: 24px 0 0; padding-top: 17px; color: #858b86; border-top: 1px solid var(--solutions-line); font-size: 10px; line-height: 1.8; }

/* 10. CLOSING CALL TO ACTION */
.solutions-closing { position: relative; width: min(1200px, 90%); margin: 90px auto; padding: 85px 30px; overflow: hidden; isolation: isolate; text-align: center; background: radial-gradient(ellipse at 50% 100%, rgba(0, 217, 255, 0.1), transparent 55%), #090d0b; border: 1px solid rgba(0, 217, 255, 0.2); }
.solutions-closing::before, .solutions-closing::after { content: ""; position: absolute; z-index: -1; width: 250px; height: 250px; border: 1px solid rgba(0, 217, 255, 0.1); border-radius: 50%; pointer-events: none; }
.solutions-closing::before { top: -190px; left: -100px; }
.solutions-closing::after { right: -100px; bottom: -190px; border-color: rgba(155, 255, 53, 0.12); }
.solutions-closing .section-kicker { justify-content: center; color: var(--solutions-muted); }
.solutions-closing h2 { margin: 25px 0 18px; font-size: clamp(36px, 5vw, 59px); line-height: 1.15; letter-spacing: -2px; }
.solutions-closing h2 span { color: var(--solutions-cyan); }
.solutions-closing > p:not(.section-kicker) { max-width: 620px; margin: 0 auto 28px; color: var(--solutions-muted); font-size: 13px; line-height: 1.95; }

/* 11. FOOTER */
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 100px; padding: 25px 5%; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.footer-brand { color: var(--solutions-white); font-size: 17px; font-weight: 800; letter-spacing: 1.5px; }
.footer-brand span { color: var(--solutions-cyan); }
.site-footer p, .footer-back-top { margin: 0; color: var(--solutions-muted); font-size: 11px; }
.footer-back-top:hover { color: var(--solutions-cyan); }

/* 12. LOGIN MODAL */
.login-modal { position: fixed; inset: 0; z-index: 10000; display: flex; align-items: center; justify-content: center; padding: 20px; overflow-y: auto; background: rgba(0, 0, 0, 0.82); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.login-modal[hidden] { display: none; }
.login-box { position: relative; width: 100%; max-width: 430px; max-height: calc(100vh - 40px); overflow-y: auto; padding: 40px 32px; background: var(--solutions-panel); border: 1px solid rgba(0, 217, 255, 0.22); border-radius: 18px; box-shadow: 0 0 50px rgba(0, 217, 255, 0.08); animation: loginAppear 0.25s ease; }
.login-box .eyebrow { margin: 0 0 18px; color: var(--solutions-cyan); font-size: 10px; font-weight: 700; letter-spacing: 2px; }
.login-box h2 { margin: 0 0 12px; color: var(--solutions-white); font-size: 26px; font-weight: 600; line-height: 1.35; }
.login-box h2 span { color: var(--solutions-cyan); }
.login-subtitle { margin: 0 0 28px; color: var(--solutions-muted); font-size: 13px; line-height: 1.8; }
.login-close { position: absolute; top: 12px; right: 16px; display: grid; place-items: center; width: 36px; height: 36px; color: #aaa; background: transparent; border: none; font-size: 28px; line-height: 1; cursor: pointer; }
.login-close:hover { color: var(--solutions-cyan); }
.login-form label { display: block; margin: 17px 0 8px; color: var(--solutions-white); font-size: 12px; font-weight: 500; }
.login-form input { display: block; width: 100%; min-width: 0; padding: 13px 14px; color: var(--solutions-white); background: #050706; border: 1px solid #343a38; border-radius: 8px; outline: none; font-size: 13px; transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.login-form input::placeholder { color: #707871; }
.login-form input:focus { border-color: var(--solutions-cyan); box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.08); }
.login-submit { width: 100%; margin-top: 25px; padding: 14px; color: #031014; background: var(--solutions-cyan); border: none; border-radius: 30px; font-size: 11px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; cursor: pointer; transition: box-shadow 0.2s ease, transform 0.2s ease; }
.login-submit:hover { box-shadow: 0 0 24px rgba(0, 217, 255, 0.2); transform: translateY(-1px); }
.login-note { margin: 20px 0 0; color: var(--solutions-muted); font-size: 11px; line-height: 1.8; text-align: center; }

@keyframes loginAppear {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 13. TABLET RESPONSIVENESS */
@media (max-width: 1000px) {
  .main-nav { gap: 17px; }
  .nav-link, .nav-join { font-size: 9px; }
  .nav-join { padding: 10px 15px; }
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .problem-inner, .development-inner { gap: 38px; }
  .pillar-card { min-height: 410px; }
}

/* NAVIGATION LINK HOVER AND ACTIVE STATE */

.main-nav .nav-link {
  position: relative;
  display: inline-block;
  transition: color 0.3s ease;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active {
  color: var(--solutions-cyan);
}

/* ACTIVE LINK UNDERLINE */

.main-nav .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--solutions-cyan);
}

/* 14. MOBILE NAVIGATION AND LAYOUT */
@media (max-width: 760px) {
  .site-header { min-height: 76px; padding: 0 22px; }
  .brand img { width: 70px; height: 60px; }
  .menu-toggle { display: block; z-index: 102; }
  .main-nav { position: absolute; top: 75px; left: 0; right: 0; display: none; align-items: stretch; flex-direction: column; gap: 8px; padding: 20px 24px 25px; background: #080809; border-bottom: 1px solid var(--solutions-line); }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 0; font-size: 11px; }

/* NAVIGATION LINK HOVER AND ACTIVE STATE */



  .nav-join { width: 100%; margin-top: 8px; font-size: 10px; }
  .nav-dropdown { right: 0; }
  .solutions-hero { min-height: 650px; }
  .solutions-hero-content { padding: 85px 0 105px; }
  .solutions-hero h1 { font-size: clamp(42px, 9vw, 65px); letter-spacing: -2px; }
  .solutions-intro { grid-template-columns: 1fr; gap: 30px; padding-top: 80px; padding-bottom: 80px; }
  .innovation-pillars { padding-top: 80px; padding-bottom: 80px; }
  .problem-inner, .development-inner { grid-template-columns: 1fr; gap: 45px; padding-top: 80px; padding-bottom: 80px; }
  .problem-visual { width: min(340px, 90%); }
  .building-process { padding-top: 80px; padding-bottom: 80px; }
  .development-status { padding: 27px; }
  .solutions-closing { margin-top: 60px; margin-bottom: 60px; padding: 65px 22px; }
}

/* 15. SMALL MOBILE */
@media (max-width: 600px) {
  .section-wrap { width: 90%; }
  .section-kicker { gap: 9px; font-size: 9px; letter-spacing: 1.7px; }
  .kicker-line { flex-basis: 25px; width: 25px; }
  .solutions-hero { min-height: 670px; background-position: 65% center; }
  .solutions-hero-overlay { background: linear-gradient(90deg, rgba(5, 7, 6, 0.88), rgba(5, 7, 6, 0.58)); }
  .solutions-hero-content { width: 90%; padding: 70px 0 100px; }
  .solutions-hero h1 { margin-top: 25px; font-size: clamp(39px, 11vw, 54px); letter-spacing: -1.8px; }
  .solutions-hero-lead { font-size: 20px; }
  .solutions-hero-description { font-size: 13px; }
  .solutions-hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .solutions-hero-index { right: 5%; bottom: 22px; font-size: 8px; letter-spacing: 1.2px; }
  .solutions-intro h2, .pillars-heading h2, .process-heading h2, .problem-content h2, .development-copy h2 { font-size: clamp(31px, 8.5vw, 40px); letter-spacing: -1px; }
  .solutions-intro-content > p, .problem-content > p:not(.section-kicker), .development-copy > p:not(.section-kicker) { font-size: 13px; }
  .pillars-grid { grid-template-columns: 1fr; gap: 14px; }
  .pillar-card { min-height: auto; padding: 25px 23px; }
  .pillar-symbol { margin: 25px 0 22px; }
  .pillar-card h3 { font-size: 26px; }
  .pillar-detail { margin-bottom: 24px; }
  .pillars-closing { margin-top: 30px; }
  .pillars-closing p { font-size: 17px; }
  .problem-visual { width: min(300px, 88%); }
  .problem-node { width: 68px; height: 68px; font-size: 8px; }
  .problem-core { width: 74px; height: 74px; }
  .problem-connector { height: 35px; }
  .connector-two, .connector-four { width: 35px; }
  .connector-two { right: 22%; }
  .connector-four { left: 22%; }
  .process-grid { grid-template-columns: 1fr; gap: 12px; }
  .process-card { padding: 24px 22px; }
  .process-number { margin-bottom: 19px; }
  .development-status { padding: 23px 20px; }
  .solutions-closing { width: 90%; padding: 55px 20px; }
  .solutions-closing h2 { font-size: 37px; letter-spacing: -1px; }
  .solutions-closing > p:not(.section-kicker) { font-size: 12px; }
  .site-footer { flex-direction: column; text-align: center; gap: 12px; padding: 28px 20px; }
  .login-modal { padding: 14px; }
  .login-box { max-height: calc(100vh - 28px); padding: 38px 23px 28px; }
}

/* 16. REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}