/*
Theme Name: E-storage Engineering 2026
Theme URI: https://estorageengineering.com
Author: E-storage Engineering S.r.l.
Author URI: https://estorageengineering.com
Description: Custom dark, cinematic theme for E-storage Engineering (2026 rebrand: new ES logo, royal-blue accents). Vanadium Flow Battery technology for long-duration energy storage.
Version: 2.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: estorage-engineering
*/

/* ============================================================
   1. TOKENS
   ============================================================ */
:root {
  --brand-green: #52BE4E;
  --brand-green-soft: #6BD167;
  --brand-blue: #2E74D6;
  --brand-navy: #183C60;
  --brand-navy-deep: #0F2A47;

  --bg-deep: #070B14;
  --bg-base: #0B1426;
  --bg-elev: #102341;
  --bg-soft: #1F4775;

  --text-primary: #FFFFFF;
  --text-body: #D6DEEB;
  --text-muted: #8294B0;
  --text-disabled: #4A5878;

  --accent: #3B82E0;
  --accent-hover: #5EA0F5;
  --accent-soft: rgba(59, 130, 224, 0.14);
  --success: #52BE4E;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.16);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

/* ============================================================
   2. BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-body);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0;
}

p { margin: 0; }
img { max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent-hover); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

.skip-link {
  position: absolute;
  left: -9999px; top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--bg-deep);
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 4px;
}
.skip-link:focus { left: 12px; top: 12px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

/* ============================================================
   3. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all .2s ease;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 24px rgba(46, 116, 214, 0.45);
  color: var(--bg-deep);
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-arrow { transition: transform .2s ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ============================================================
   4. NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background-color .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.logo:hover { color: var(--text-primary); }
.logo-mark { height: 52px; width: auto; display: block; }
.nav-menu { display: flex; align-items: center; gap: 36px; }
.nav-menu a { color: var(--text-body); font-size: 14px; font-weight: 500; }
.nav-menu a:hover { color: var(--text-primary); }
.nav-menu a.current { color: var(--accent); }
.nav-menu a.btn.btn-primary { color: #fff; }

/* admin-bar offset (logged-in users only) */
body.admin-bar .nav { top: 32px; }
@media screen and (max-width: 782px) {
  body.admin-bar .nav { top: 46px; }
}

/* ============================================================
   5. HERO (home)
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 140px 0 100px;
  background: var(--bg-deep);
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 85% 18%, rgba(59, 130, 224, 0.16) 0%, transparent 45%),
    radial-gradient(circle at 12% 82%, rgba(46, 116, 214, 0.32) 0%, transparent 50%),
    linear-gradient(180deg, #070B14 0%, #0B1426 60%, #070B14 100%);
}
.hero-photo {
  position: absolute; inset: 0;
  z-index: 1;
  background-image: url('assets/images/hero.jpg');
  background-size: cover;
  background-position: 55% center;
}
.hero-photo::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(95deg, rgba(7,11,20,0.97) 0%, rgba(7,11,20,0.90) 34%, rgba(7,11,20,0.52) 66%, rgba(7,11,20,0.62) 100%),
    linear-gradient(180deg, rgba(7,11,20,0.55) 0%, transparent 22%, transparent 52%, rgba(7,11,20,0.94) 100%);
}
.hero-grid {
  position: absolute; inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse at 30% 50%, black 10%, transparent 70%);
  mask-image: radial-gradient(ellipse at 30% 50%, black 10%, transparent 70%);
}
.hero-inner {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}
.hero-content { max-width: 640px; }
.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 600;
  margin-top: 24px;
  letter-spacing: -0.02em;
}
.hero h1 .hl { color: var(--accent); font-style: italic; font-weight: 500; }
.hero-sub {
  margin-top: 28px;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--text-body);
  max-width: 540px;
}
.hero-ctas { margin-top: 44px; display: flex; flex-wrap: wrap; gap: 14px; }

.quote-card {
  position: relative;
  background: linear-gradient(180deg, rgba(19, 28, 46, 0.85) 0%, rgba(11, 18, 32, 0.75) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 36px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.quote-card::before {
  content: "";
  position: absolute;
  top: -1px; left: 24px; right: 24px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  opacity: 0.7;
}
.quote-mark {
  font-family: var(--font-display);
  font-size: 64px;
  color: var(--accent);
  line-height: 0.6;
  margin-bottom: 16px;
  display: block;
}
.quote-text {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.4;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.quote-author {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 16px;
}
.quote-avatar {
  width: 54px; height: 54px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border-strong);
  display: block;
}
.quote-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}
.quote-role { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.scroll-cue {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: bob 2.4s ease-in-out infinite;
}
.scroll-cue::after {
  content: "";
  width: 1px; height: 38px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); opacity: .9; }
  50%      { transform: translate(-50%, 6px); opacity: .6; }
}

/* ============================================================
   6. ABOUT (home)
   ============================================================ */
.about { padding: 140px 0; background: var(--bg-base); position: relative; }
.about::before {
  content: "";
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(to right, transparent, var(--border-strong), transparent);
}
.about-head { max-width: 760px; margin-bottom: 80px; }
.about h2 { margin-top: 20px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; }
.about-lead { margin-top: 22px; font-size: 18px; color: var(--text-body); max-width: 680px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 36px 32px;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease;
}
.card:hover {
  transform: translateY(-3px);
  background: var(--bg-soft);
  border-color: var(--border-strong);
}
.card-icon {
  width: 52px; height: 52px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 24px;
}
.card h3 { font-size: 20px; font-weight: 600; color: var(--text-primary); }
.card-body { margin-top: 12px; font-size: 15px; color: var(--text-muted); line-height: 1.65; }

/* ============================================================
   7. TECHNOLOGY (home section)
   ============================================================ */
.technology { padding: 140px 0; background: var(--bg-deep); }
.tech-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center; }
.tech-content { max-width: 560px; }
.tech-content h2 { margin-top: 20px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; }
.tech-lead { margin-top: 22px; font-size: 18px; color: var(--text-body); }
.tech-features { margin-top: 36px; display: flex; flex-direction: column; gap: 18px; }
.tech-feature { display: flex; align-items: flex-start; gap: 14px; font-size: 15px; color: var(--text-body); }
.tech-feature-bullet {
  flex: 0 0 22px; height: 22px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-top: 2px;
}
.tech-cta { margin-top: 40px; }

.stat-card {
  background: linear-gradient(160deg, var(--bg-elev) 0%, var(--bg-base) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(to right, var(--accent), transparent);
}
.stat-row { padding: 22px 0; border-bottom: 1px solid var(--border-subtle); }
.stat-row:last-child { border-bottom: 0; padding-bottom: 0; }
.stat-row:first-child { padding-top: 0; }
.stat-value {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.03em;
}
.stat-label { margin-top: 8px; font-size: 14px; color: var(--text-muted); }

/* ============================================================
   8. APPLICATIONS (home) + TABS
   ============================================================ */
.applications { padding: 140px 0; background: var(--bg-base); }
.apps-head { max-width: 760px; margin-bottom: 56px; }
.apps-head h2 { margin-top: 20px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; }
.apps-lead { margin-top: 22px; font-size: 18px; color: var(--text-body); }

.tabs {
  display: flex; gap: 4px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 40px;
}
.tab-btn {
  font-family: var(--font-body);
  font-size: 14px; font-weight: 600; letter-spacing: 0.02em;
  background: transparent; border: 0;
  color: var(--text-muted);
  padding: 16px 22px;
  cursor: pointer;
  position: relative;
  transition: color .2s ease;
}
.tab-btn:hover { color: var(--text-body); }
.tab-btn.active { color: var(--text-primary); }
.tab-btn.active::after {
  content: ""; position: absolute;
  left: 16px; right: 16px; bottom: -1px;
  height: 2px; background: var(--accent);
}
.tab-panel { display: none; }
.tab-panel.active {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  animation: fadeIn .35s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
.app-item {
  background: var(--bg-elev);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 16px 20px;
  display: flex; align-items: center; gap: 14px;
  font-size: 15px; color: var(--text-body);
  transition: border-color .2s ease, background-color .2s ease;
}
.app-item:hover { border-color: var(--accent); background: var(--bg-soft); }
.app-item-marker {
  flex: 0 0 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}

/* ============================================================
   9. TEAM (home)
   ============================================================ */
.team { padding: 140px 0; background: var(--bg-deep); }
.team-head { max-width: 760px; margin-bottom: 56px; }
.team-head h2 { margin-top: 20px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.member {
  background: var(--bg-elev);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  transition: transform .25s ease, border-color .25s ease;
}
.member:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.member-photo {
  width: 110px; height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-strong);
  display: block;
  margin-bottom: 22px;
}
.member-name {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}
.member-role { font-size: 13px; font-weight: 500; color: var(--accent); margin-top: 4px; }
.member-bio { margin-top: 14px; font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.member-link {
  margin-top: 18px; display: inline-flex;
  align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600;
  color: var(--accent);
}

/* ============================================================
   10. PROJECTS (home section)
   ============================================================ */
.projects { padding: 140px 0; background: var(--bg-base); }
.proj-head { max-width: 760px; margin-bottom: 56px; }
.proj-head h2 { margin-top: 20px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; }
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project {
  background: var(--bg-elev);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  display: flex; flex-direction: column;
  transition: transform .25s ease, border-color .25s ease;
}
.project:hover { transform: translateY(-3px); border-color: var(--accent); }
.project-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  padding: 6px 12px;
  background: var(--accent-soft);
  border-radius: 4px;
  align-self: flex-start;
}
.project-name {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 600;
  color: var(--text-primary);
  margin-top: 20px;
  letter-spacing: -0.01em;
}
.project-desc {
  margin-top: 14px; font-size: 15px;
  color: var(--text-muted); line-height: 1.65;
  flex: 1;
}
.project-meta {
  margin-top: 24px; padding-top: 22px;
  border-top: 1px solid var(--border-subtle);
  display: flex; align-items: center;
  justify-content: space-between;
  font-size: 13px; color: var(--text-muted);
}
.project-meta strong { color: var(--accent); font-weight: 500; font-size: 14px; }
.projects-cta { margin-top: 56px; text-align: center; }

/* ============================================================
   11. PARTNERS (home)
   ============================================================ */
.partners { padding: 100px 0 140px; background: var(--bg-deep); text-align: center; }
.partners-head { max-width: 680px; margin: 0 auto 48px; }
.partners-head h2 { margin-top: 16px; font-size: clamp(28px, 3vw, 36px); letter-spacing: -0.02em; }
.partners-lead { margin-top: 18px; font-size: 16px; color: var(--text-muted); }
.partners-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.partner {
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 28px 20px;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 14px; font-weight: 500;
  color: var(--text-muted);
  min-height: 90px;
  transition: all .2s ease;
}
.partner:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ============================================================
   12. CONTACT (home)
   ============================================================ */
.contact { padding: 140px 0; background: var(--bg-base); }
.contact-inner { max-width: 680px; margin: 0 auto; text-align: center; }
.contact-inner .eyebrow { justify-content: center; }
.contact-inner h2 { margin-top: 20px; font-size: clamp(30px, 4vw, 46px); letter-spacing: -0.02em; }
.contact-inner > p {
  margin: 22px auto 0;
  font-size: 17px; color: var(--text-body);
  max-width: 520px;
}
.contact-email {
  display: inline-flex; align-items: center; gap: 14px;
  margin-top: 38px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 29px);
  font-weight: 600;
  color: var(--text-primary);
  padding: 22px 40px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.contact-email:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 32px rgba(46,116,214,0.18);
}
.contact-email svg { color: var(--accent); flex-shrink: 0; }
.contact-meta {
  margin-top: 40px;
  display: flex; justify-content: center; gap: 40px;
  flex-wrap: wrap;
}
.contact-meta-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--text-muted);
  text-align: left;
}
.contact-meta-item svg { color: var(--accent); flex-shrink: 0; }
.contact-meta-item a { color: var(--text-muted); }
.contact-meta-item a:hover { color: var(--accent); }

/* ============================================================
   13. PAGE HEADER (Technology / Projects / legal)
   ============================================================ */
.page-header {
  position: relative;
  padding: 200px 0 110px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 30%, rgba(59,130,224,0.12) 0%, transparent 50%),
    radial-gradient(circle at 10% 90%, rgba(46,116,214,0.32) 0%, transparent 55%),
    linear-gradient(180deg, #070B14 0%, #0B1426 100%);
}
.breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.page-header h1 {
  font-size: clamp(40px, 6vw, 68px);
  max-width: 800px;
  margin-top: 22px;
  letter-spacing: -0.02em;
}
.page-header .intro {
  margin-top: 26px;
  font-size: clamp(17px, 1.5vw, 20px);
  color: var(--text-body);
  max-width: 640px;
}

/* ============================================================
   14. GENERIC SECTION (Technology page)
   ============================================================ */
.section { padding: 130px 0; }
.section.alt { background: var(--bg-base); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { margin-top: 18px; font-size: clamp(30px, 4vw, 44px); letter-spacing: -0.02em; }
.section-head p { margin-top: 20px; font-size: 18px; color: var(--text-body); }

.principle-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.principle-text h2 { margin-top: 18px; font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.02em; }
.principle-text p { margin-top: 20px; font-size: 16px; color: var(--text-body); }
.principle-text p + p { margin-top: 14px; }
.diagram-card {
  background: linear-gradient(160deg, var(--bg-elev) 0%, var(--bg-base) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
}
.diagram-card svg, .diagram-card img { width: 100%; height: auto; display: block; border-radius: 10px; }
.diagram-caption {
  margin-top: 18px; padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  font-size: 13px; color: var(--text-muted); text-align: center;
}

.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.adv-card {
  background: var(--bg-elev);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px 28px;
  transition: transform .25s ease, border-color .25s ease;
}
.adv-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.adv-icon {
  width: 50px; height: 50px; border-radius: 10px;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: 22px;
}
.adv-card h3 { font-size: 19px; font-weight: 600; color: var(--text-primary); }
.adv-card p { margin-top: 12px; font-size: 14px; color: var(--text-muted); line-height: 1.65; }

.ese-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ese-text h2 { margin-top: 18px; font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.02em; }
.ese-text p { margin-top: 20px; font-size: 16px; color: var(--text-body); }
.ese-text p + p { margin-top: 14px; }
.ese-visual {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elev);
  aspect-ratio: 4 / 3;
  display: grid; place-items: center;
}
.ese-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }

.other-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.other-card {
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px 28px;
  background: transparent;
  transition: background-color .25s ease, border-color .25s ease;
}
.other-card:hover { background: var(--bg-elev); border-color: var(--border-strong); }
.other-num {
  font-family: var(--font-display); font-size: 14px; font-weight: 600;
  color: var(--accent); margin-bottom: 16px;
}
.other-card h3 { font-size: 18px; font-weight: 600; color: var(--text-primary); }
.other-card p { margin-top: 10px; font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ============================================================
   15. CTA BAND (Technology / Projects)
   ============================================================ */
.cta-band {
  padding: 110px 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(59,130,224,0.12) 0%, transparent 55%),
    var(--bg-base);
  text-align: center;
}
.cta-band h2 { font-size: clamp(28px, 3.6vw, 42px); letter-spacing: -0.02em; }
.cta-band p { margin: 18px auto 32px; font-size: 17px; color: var(--text-body); max-width: 520px; }

/* ============================================================
   16. PROJECT BLOCKS (Projects page)
   ============================================================ */
.project-block { padding: 120px 0; }
.project-block.alt { background: var(--bg-base); }
.pb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.pb-media {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border-subtle);
  aspect-ratio: 4 / 3; background: var(--bg-elev);
}
.pb-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pb-grid.reverse .pb-media { order: 2; }
.pb-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); padding: 6px 12px; background: var(--accent-soft);
  border-radius: 4px;
}
.pb-number {
  font-family: var(--font-display); font-size: 14px; font-weight: 600;
  color: var(--text-disabled); margin-left: 12px; letter-spacing: 0.1em;
}
.pb-name { font-size: clamp(28px, 3.4vw, 40px); margin-top: 18px; letter-spacing: -0.02em; }
.pb-meta { margin-top: 12px; font-size: 13px; color: var(--text-muted); }
.pb-desc { margin-top: 20px; font-size: 16px; color: var(--text-body); }
.pb-desc + .pb-desc { margin-top: 14px; }
.pb-highlights { margin-top: 26px; display: flex; flex-direction: column; gap: 12px; }
.pb-highlight { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--text-body); }
.pb-check {
  flex: 0 0 20px; height: 20px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-top: 2px;
}

.collab { padding: 120px 0; background: var(--bg-deep); text-align: center; }
.collab-head { max-width: 680px; margin: 0 auto 48px; }
.collab-head h2 { margin-top: 16px; font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.02em; }
.collab-head p { margin-top: 18px; font-size: 16px; color: var(--text-muted); }
.collab-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.collab-item {
  border: 1px solid var(--border-subtle); border-radius: 10px;
  padding: 26px 18px; display: grid; place-items: center;
  font-family: var(--font-display); font-size: 14px; font-weight: 500;
  color: var(--text-muted); min-height: 88px; transition: all .2s ease;
}
.collab-item:hover { color: var(--text-primary); border-color: var(--accent); background: var(--accent-soft); }

/* ============================================================
   17. LEGAL / GENERIC PAGE CONTENT
   ============================================================ */
.legal-page .section { padding: 90px 0 130px; }
.legal-content { max-width: 760px; }
.legal-content h2 { font-size: 28px; margin: 40px 0 14px; }
.legal-content h3 { font-size: 20px; margin: 28px 0 10px; }
.legal-content h2:first-child, .legal-content h3:first-child { margin-top: 0; }
.legal-content p { margin-bottom: 16px; font-size: 16px; color: var(--text-body); }
.legal-content ul, .legal-content ol { margin: 0 0 16px; padding-left: 22px; color: var(--text-body); }
.legal-content li { margin-bottom: 8px; }
.legal-content a { color: var(--accent); }
.legal-content strong { color: var(--text-primary); }

/* ============================================================
   18. REVEAL ON SCROLL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   19. RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .container { padding: 0 24px; }
  .nav-menu { display: none; }
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero { padding: 120px 0 80px; }
  .cards, .team-grid, .proj-grid, .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid, .principle-grid, .ese-grid { grid-template-columns: 1fr; gap: 56px; }
  .tab-panel.active { grid-template-columns: 1fr; }
  .other-grid { grid-template-columns: 1fr; }
  .pb-grid { grid-template-columns: 1fr; gap: 40px; }
  .pb-grid.reverse .pb-media { order: 0; }
  .collab-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .about, .technology, .applications, .team, .projects, .contact { padding: 96px 0; }
  .partners { padding: 80px 0 96px; }
  .section { padding: 90px 0; }
  .project-block, .collab { padding: 80px 0; }
  .page-header { padding: 150px 0 80px; }
  .quote-card { padding: 28px; }
  .quote-text { font-size: 19px; }
  .contact-email { padding: 20px 28px; }
}
@media (max-width: 560px) {
  .cards, .team-grid, .proj-grid, .partners-grid, .collab-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   20. FOOTER
   ============================================================ */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand img { height: 36px; width: auto; display: block; margin-bottom: 14px; }
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.footer-tagline {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-muted); font-size: 14px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex; align-items: center;
  justify-content: space-between;
  font-size: 12px; color: var(--text-disabled);
  flex-wrap: wrap; gap: 8px;
}

/* ============================================================
   21. MOBILE NAVIGATION (hamburger)
   ============================================================ */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--text-primary);
  transition: transform .2s ease, opacity .2s ease;
}
.nav.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav.nav-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 0 14px;
    background: rgba(7, 11, 20, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav.nav-open .nav-menu { display: flex; }
  .nav-menu a { padding: 14px 24px; font-size: 16px; }
  .nav-menu a.btn.btn-primary { margin: 12px 24px 4px; justify-content: center; }
}

/* ============================================================
   22. MOBILE WIDTH / OVERFLOW FIXES
   ============================================================ */
/* Safety net: nothing may force the page wider than the screen. */
body { overflow-x: hidden; }

/* The long e-mail address is a single unbreakable string — allow it
   to wrap so it can never push the layout past the viewport width. */
.contact-email,
.contact-meta-item a,
.footer-col a {
  overflow-wrap: anywhere;
}
.footer-col { min-width: 0; }

@media (max-width: 600px) {
  .contact-email {
    display: flex;
    width: 100%;
    max-width: 100%;
    justify-content: center;
    padding: 18px 16px;
    font-size: 17px;
  }
}