/*
Theme Name: Onterra Energy
Theme URI: https://onterraenergy.com
Author: Onterra Energy Advisors
Description: Custom theme for Onterra Energy — Water Saver Valve product site.
Version: 1.0.0
License: Proprietary
Text Domain: onterra
*/

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
  --navy: #0a1628;
  --navy-mid: #0f2040;
  --blue: #1a6bc9;
  --cyan: #00b4d8;
  --cyan-bright: #00e5ff;
  --white: #f0f4f8;
  --white-dim: #a8bdd0;
  --orange: #ff6b35;
  --green: #22c55e;
  --border: rgba(0,180,216,0.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--navy); color: var(--white);
  font-family: 'DM Sans', sans-serif; font-weight: 300;
  overflow-x: hidden;
}

/* ============================================================
   NAV
   ============================================================ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,22,40,0.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0; height: 68px;
}
.nav-inner { max-width: 1280px; margin: 0 auto; padding: 0 60px; display: flex; align-items: center; justify-content: space-between; height: 100%; width: 100%; }
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-family: 'Space Mono', monospace; font-size: 13px; font-weight: 700; color: #fff;
}
.nav-logo-text { font-family: 'Bebas Neue', sans-serif; font-size: 22px; letter-spacing: 2px; color: var(--white); }
.nav-logo-text span { color: var(--cyan); }

/* WordPress wp_nav_menu outputs <ul class="nav-links"><li><a> structure */
.nav-links { display: flex; align-items: center; gap: 36px; list-style: none; }
.nav-links li { list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--white-dim); font-size: 13px; font-weight: 500;
  letter-spacing: 1.5px; text-transform: uppercase; transition: color 0.2s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0; height: 1px;
  background: var(--cyan); transform: scaleX(0); transition: transform 0.25s;
}
.nav-links a:hover, .nav-links a.active,
.nav-links .current-menu-item > a,
.nav-links .current_page_item > a { color: var(--cyan); }
.nav-links a:hover::after, .nav-links a.active::after,
.nav-links .current-menu-item > a::after,
.nav-links .current_page_item > a::after { transform: scaleX(1); }

/* CTA button — add CSS class "nav-cta" to the menu item in WP Admin */
.nav-links .nav-cta > a,
.nav-links a.nav-cta {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #fff !important; padding: 10px 22px; border-radius: 6px;
  font-weight: 600 !important; letter-spacing: 1px;
}
.nav-links .nav-cta > a::after,
.nav-links a.nav-cta::after { display: none !important; }
.nav-links .nav-cta > a:hover,
.nav-links a.nav-cta:hover { opacity: 0.88; }

/* Mobile hamburger (hidden on desktop) */
.nav-toggle { display: none; }

/* PROGRESS BAR */
.progress-bar {
  position: fixed; top: 68px; left: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  z-index: 999; transition: width 0.1s; width: 0%;
}

/* ============================================================
   HERO
   ============================================================ */
#home {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden; padding: 120px 0 80px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 65% 50%, rgba(26,107,201,0.22) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,180,216,0.08) 0%, transparent 60%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,180,216,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-valve {
  position: absolute; right: 0; top: 50%;
  transform: translateY(-54%);
  width: 380px; z-index: 2; pointer-events: none;
}
.hero-valve img {
  width: 100%; height: auto; display: block;
  filter: drop-shadow(0 24px 56px rgba(0,80,200,0.6)) brightness(1.08);
  animation: floatValve 6s ease-in-out infinite;
}
@keyframes floatValve {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

.hero-stats {
  position: absolute; right: 0; bottom: 0;
  display: flex; flex-direction: row; gap: 12px; z-index: 2;
  animation: fadeUp 1.1s 0.2s ease both;
}
.stat-card {
  background: rgba(10,22,40,0.75); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 22px; text-align: center; min-width: 120px;
  backdrop-filter: blur(12px); transition: border-color 0.2s, transform 0.2s;
}
.stat-card:hover { border-color: var(--cyan); transform: translateY(-3px); }
.stat-number { font-family: 'Bebas Neue', sans-serif; font-size: 40px; line-height: 1; color: var(--cyan); letter-spacing: 1px; }
.stat-label { font-size: 10px; font-weight: 500; letter-spacing: 1.5px; text-transform: uppercase; color: var(--white-dim); margin-top: 4px; }

.hero-container {
  max-width: 1280px; margin: 0 auto; padding: 0 60px;
  position: relative; width: 100%; height: 100%;
}
.hero-content { position: relative; z-index: 3; max-width: 580px; animation: fadeUp 0.9s ease both; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,180,216,0.12); border: 1px solid rgba(0,180,216,0.3);
  border-radius: 100px; padding: 6px 16px; font-size: 11px; font-weight: 600;
  letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); margin-bottom: 28px;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px; background: var(--cyan);
  border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity:1;transform:scale(1); } 50% { opacity:0.5;transform:scale(1.3); } }
.hero-title {
  font-family: 'Bebas Neue', sans-serif; font-size: 118px;
  line-height: 0.92; letter-spacing: 2px; margin-bottom: 8px;
}
.hero-title .accent { color: var(--cyan); }
.hero-subtitle {
  font-family: 'Bebas Neue', sans-serif; font-size: 46px;
  letter-spacing: 3px; color: var(--white-dim); margin-bottom: 28px;
}
.hero-desc { font-size: 17px; line-height: 1.7; color: var(--white-dim); max-width: 500px; margin-bottom: 44px; }
.hero-actions { display: flex; gap: 16px; align-items: center; }
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #fff; padding: 16px 36px; border: none; border-radius: 8px;
  font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; cursor: pointer; text-decoration: none;
  display: inline-block; transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 30px rgba(0,180,216,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(0,180,216,0.45); }
.btn-secondary {
  color: var(--cyan); padding: 16px 36px; border: 1px solid rgba(0,180,216,0.4);
  border-radius: 8px; font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; cursor: pointer; text-decoration: none;
  display: inline-block; transition: background 0.2s, border-color 0.2s;
}
.btn-secondary:hover { background: rgba(0,180,216,0.08); border-color: var(--cyan); }
.usa-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px; padding: 6px 14px; font-size: 11px;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--white-dim); margin-top: 16px;
}
.hero-scroll {
  position: absolute; bottom: 40px;
  left: calc(50% - 640px + 60px);
  display: flex; align-items: center; gap: 10px;
  color: var(--white-dim); font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  animation: fadeUp 1.3s 0.4s ease both;
  z-index: 3;
}
.scroll-line { width: 40px; height: 1px; background: var(--cyan); animation: scrollAnim 1.8s infinite; }
@keyframes scrollAnim {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  50.001% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
section { padding: 100px 0; position: relative; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 60px; }
.section-label {
  font-family: 'Space Mono', monospace; font-size: 11px; letter-spacing: 3px;
  text-transform: uppercase; color: var(--cyan); margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.section-label::before { content: ''; width: 24px; height: 1px; background: var(--cyan); }
.section-title {
  font-family: 'Bebas Neue', sans-serif; font-size: 72px;
  line-height: 1; letter-spacing: 2px; margin-bottom: 20px;
}
.section-subtitle { font-size: 18px; color: var(--white-dim); max-width: 600px; line-height: 1.7; margin-bottom: 60px; }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); margin: 60px 0; }

/* ============================================================
   PRODUCT
   ============================================================ */
#product { background: var(--navy-mid); }
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; margin-bottom: 80px; }
.how-it-works-text { font-size: 16px; line-height: 1.85; color: var(--white-dim); margin-bottom: 32px; }
.highlight-box {
  background: rgba(0,180,216,0.07); border-left: 3px solid var(--cyan);
  border-radius: 0 8px 8px 0; padding: 20px 24px; margin-top: 24px;
}
.highlight-box p { font-size: 15px; color: var(--white); line-height: 1.7; }
.highlight-box strong { color: var(--cyan); }
.case-study-card {
  background: rgba(0,180,216,0.06); border: 1px solid rgba(0,180,216,0.2);
  border-radius: 12px; padding: 28px 32px; margin-top: 32px;
}
.case-study-tag { font-family: 'Space Mono', monospace; font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); margin-bottom: 12px; }
.case-study-card p { font-size: 15px; color: var(--white-dim); line-height: 1.7; }
.case-study-card strong { color: var(--white); }

.product-valve-img {
  width: 100%; max-width: 360px;
  margin: 0 auto 28px auto;
  border-radius: 14px; overflow: hidden;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(255,255,255,0.05) 0%, transparent 70%);
  padding: 8px;
}
.product-valve-img img {
  width: 100%; height: auto; display: block;
  border-radius: 10px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.45), 0 0 0 1px rgba(0,180,216,0.12);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.product-valve-img img:hover {
  transform: scale(1.03) rotate(-0.5deg);
  box-shadow: 0 20px 52px rgba(0,80,200,0.5), 0 0 0 1px rgba(0,180,216,0.25);
}

.benefits-list { display: flex; flex-direction: column; gap: 20px; }
.benefit-item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 24px; background: rgba(15,32,64,0.6); border: 1px solid var(--border);
  border-radius: 10px; transition: border-color 0.2s, transform 0.2s;
}
.benefit-item:hover { border-color: var(--cyan); transform: translateX(6px); }
.benefit-icon {
  width: 42px; height: 42px; background: rgba(0,180,216,0.12); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 20px;
}
.benefit-text h4 { font-size: 14px; font-weight: 600; letter-spacing: 0.5px; color: var(--white); margin-bottom: 4px; }
.benefit-text p { font-size: 13px; color: var(--white-dim); line-height: 1.6; }

/* COMPARISON TABLE */
.comparison-wrapper { overflow-x: auto; margin-top: 40px; }
.comparison-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.comparison-table thead tr { background: rgba(0,180,216,0.1); border-bottom: 2px solid rgba(0,180,216,0.3); }
.comparison-table th {
  padding: 18px 24px; text-align: left; font-family: 'Space Mono', monospace;
  font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan);
}
.comparison-table th:first-child { color: var(--white-dim); }
.comparison-table th.highlight-col { color: var(--cyan-bright); background: rgba(0,180,216,0.12); border-radius: 8px 8px 0 0; }
.comparison-table tbody tr { border-bottom: 1px solid rgba(255,255,255,0.06); transition: background 0.15s; }
.comparison-table tbody tr:hover { background: rgba(255,255,255,0.03); }
.comparison-table td { padding: 16px 24px; color: var(--white-dim); }
.comparison-table td:first-child { color: var(--white); font-weight: 400; }
.comparison-table td.highlight-col { background: rgba(0,180,216,0.05); }
.check { color: var(--green); font-size: 20px; }
.cross { color: #ef4444; font-size: 20px; }
.limited {
  color: var(--orange); font-size: 11px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  background: rgba(255,107,53,0.12); padding: 3px 10px; border-radius: 100px;
}

/* ============================================================
   SAVINGS
   ============================================================ */
#savings { background: var(--navy); }
.savings-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: start; }
.savings-table-wrapper { overflow-x: auto; }
.savings-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.savings-table thead tr { background: rgba(0,180,216,0.1); }
.savings-table th {
  padding: 14px 16px; text-align: right; font-family: 'Space Mono', monospace;
  font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--cyan); font-weight: 700;
}
.savings-table th:first-child { text-align: left; }
.savings-table tbody tr { border-bottom: 1px solid rgba(255,255,255,0.05); transition: background 0.15s; }
.savings-table tbody tr:hover { background: rgba(0,180,216,0.06); }
.savings-table td { padding: 13px 16px; text-align: right; color: var(--white-dim); font-family: 'Space Mono', monospace; font-size: 12px; }
.savings-table td:first-child { text-align: left; color: var(--white); font-weight: 700; font-size: 13px; }
.savings-table .best { color: var(--green); font-weight: 700; }

.meter-card {
  display: flex; align-items: center; gap: 24px;
  background: var(--navy-mid); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px 28px; margin-top: 28px; transition: border-color 0.2s;
}
.meter-card:hover { border-color: var(--cyan); }
.meter-card img {
  width: 130px; height: auto; flex-shrink: 0;
  filter: drop-shadow(0 6px 18px rgba(0,0,0,0.4)); border-radius: 8px;
}
.meter-card-text h4 {
  font-family: 'Space Mono', monospace; font-size: 11px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); margin-bottom: 8px;
}
.meter-card-text p { font-size: 14px; color: var(--white-dim); line-height: 1.7; }

/* CALCULATOR */
.calc-card {
  background: var(--navy-mid); border: 1px solid var(--border); border-radius: 16px;
  padding: 36px; position: sticky; top: 90px;
}
.calc-title { font-family: 'Bebas Neue', sans-serif; font-size: 28px; letter-spacing: 2px; margin-bottom: 6px; }
.calc-subtitle { font-size: 13px; color: var(--white-dim); margin-bottom: 28px; }
.calc-field { margin-bottom: 22px; }
.calc-field label { display: block; font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--white-dim); margin-bottom: 8px; }
.calc-field input, .calc-field select {
  width: 100%; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px; padding: 13px 16px; color: var(--white);
  font-family: 'Space Mono', monospace; font-size: 14px; outline: none;
  transition: border-color 0.2s; -webkit-appearance: none;
}
.calc-field input:focus, .calc-field select:focus { border-color: var(--cyan); }
.calc-field select option { background: var(--navy-mid); }
.calc-result {
  background: linear-gradient(135deg, rgba(0,180,216,0.15), rgba(26,107,201,0.15));
  border: 1px solid rgba(0,180,216,0.3); border-radius: 10px; padding: 22px 20px; margin-top: 20px; text-align: center;
}
.calc-result-label { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); margin-bottom: 6px; }
.calc-result-value { font-family: 'Bebas Neue', sans-serif; font-size: 48px; color: var(--cyan); letter-spacing: 2px; line-height: 1; }
.calc-result-note { font-size: 11px; color: var(--white-dim); margin-top: 6px; }

/* ============================================================
   ABOUT
   ============================================================ */
#about { background: var(--navy-mid); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text p { font-size: 16px; line-height: 1.85; color: var(--white-dim); margin-bottom: 20px; }
.about-text strong { color: var(--white); }
.bbb-badge {
  display: inline-flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px; padding: 14px 20px; margin-top: 12px;
}
.bbb-badge-icon {
  width: 40px; height: 40px; background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  font-family: 'Space Mono', monospace; font-size: 11px; font-weight: 700; color: #fff;
}
.bbb-badge-text { font-size: 13px; }
.bbb-badge-text .grade { font-family: 'Bebas Neue', sans-serif; font-size: 22px; color: var(--green); letter-spacing: 1px; }
.clients-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.client-pill {
  background: rgba(15,32,64,0.8); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 18px; font-size: 13px; font-weight: 500; color: var(--white-dim); text-align: center;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.client-pill:hover { border-color: var(--cyan); color: var(--white); transform: translateY(-2px); }
.about-right-label { font-family: 'Space Mono', monospace; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan); margin-bottom: 20px; }
.marquee-wrap {
  overflow: hidden; margin-top: 80px; padding: 32px 0;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.2);
}
.marquee-label { text-align: center; font-family: 'Space Mono', monospace; font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--white-dim); margin-bottom: 20px; }
.marquee-track { display: flex; gap: 48px; animation: marquee 20s linear infinite; width: max-content; }
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.marquee-item { font-family: 'Space Mono', monospace; font-size: 13px; color: rgba(255,255,255,0.3); white-space: nowrap; font-weight: 700; letter-spacing: 1px; transition: color 0.2s; }
.marquee-item:hover { color: var(--cyan); }

/* ============================================================
   CONTACT
   ============================================================ */
#contact { background: var(--navy); }
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact-info-title { font-family: 'Bebas Neue', sans-serif; font-size: 44px; line-height: 1.05; letter-spacing: 2px; margin-bottom: 16px; }
.contact-info p { font-size: 16px; line-height: 1.7; color: var(--white-dim); margin-bottom: 40px; }
.contact-details { display: flex; flex-direction: column; gap: 16px; }
.contact-detail {
  display: flex; align-items: center; gap: 14px; padding: 16px 20px;
  background: rgba(15,32,64,0.6); border: 1px solid var(--border); border-radius: 10px; transition: border-color 0.2s;
}
.contact-detail:hover { border-color: var(--cyan); }
.contact-detail-icon {
  width: 36px; height: 36px; background: rgba(0,180,216,0.12); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0;
}
.contact-detail-text a { font-size: 15px; color: var(--white); text-decoration: none; transition: color 0.2s; }
.contact-detail-text a:hover { color: var(--cyan); }
.contact-detail-text small { display: block; font-size: 11px; color: var(--white-dim); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 2px; }
.contact-form-card { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 16px; padding: 44px; }
.form-title { font-family: 'Bebas Neue', sans-serif; font-size: 32px; letter-spacing: 2px; margin-bottom: 6px; }
.form-subtitle { font-size: 14px; color: var(--white-dim); margin-bottom: 32px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--white-dim); margin-bottom: 8px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px; padding: 13px 16px; color: var(--white); font-family: 'DM Sans', sans-serif;
  font-size: 14px; outline: none; transition: border-color 0.2s, background 0.2s; -webkit-appearance: none; resize: none;
}
.form-field input::placeholder, .form-field textarea::placeholder { color: rgba(255,255,255,0.2); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--cyan); background: rgba(0,180,216,0.05); }
.form-field select option { background: #0f2040; }
.form-submit { width: 100%; margin-top: 8px; }
.form-success { display: none; text-align: center; padding: 20px; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); border-radius: 8px; margin-top: 16px; color: var(--green); font-size: 14px; font-weight: 500; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: #070f1e; border-top: 1px solid var(--border); padding: 36px 0;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-logo { font-family: 'Bebas Neue', sans-serif; font-size: 20px; letter-spacing: 3px; color: var(--white-dim); }
.footer-logo span { color: var(--cyan); }
.footer-links { display: flex; gap: 28px; list-style: none; }
.footer-links li { list-style: none; }
.footer-links a { font-size: 12px; color: var(--white-dim); text-decoration: none; letter-spacing: 1px; transition: color 0.2s; }
.footer-links a:hover { color: var(--cyan); }
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   INNER PAGE STYLES (for pages beyond the homepage)
   ============================================================ */
.page-hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}
.page-hero .hero-bg,
.page-hero .hero-grid { position: absolute; inset: 0; }
.page-hero .hero-bg {
  background: radial-gradient(ellipse 70% 60% at 50% 40%, rgba(26,107,201,0.18) 0%, transparent 70%);
}
.page-hero .hero-grid {
  background-image:
    linear-gradient(rgba(0,180,216,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 {
  font-family: 'Bebas Neue', sans-serif; font-size: 72px;
  line-height: 1; letter-spacing: 2px; margin-bottom: 20px;
  animation: fadeUp 0.9s ease both;
}
.page-hero .page-desc {
  font-size: 18px; color: var(--white-dim); max-width: 600px;
  line-height: 1.7; animation: fadeUp 0.9s 0.1s ease both;
}

/* Standard page content area */
.page-content {
  background: var(--navy-mid);
  padding: 80px 0;
}
.page-content p { font-size: 16px; line-height: 1.85; color: var(--white-dim); margin-bottom: 20px; }
.page-content strong { color: var(--white); }
.page-content h2 {
  font-family: 'Bebas Neue', sans-serif; font-size: 48px;
  letter-spacing: 2px; margin-bottom: 20px; margin-top: 60px;
}
.page-content h2:first-child { margin-top: 0; }

/* Mobile menu — hidden on desktop */
.mobile-menu { display: none; }

/* ============================================================
   MOBILE RESPONSIVE
   ============================================================ */
@media (max-width: 1023px) {
  body { font-size: 15px; }
  nav { height: 58px; padding: 0 20px; }
  .nav-inner { padding: 0; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .progress-bar { top: 58px; }

  .container { padding: 0 20px; }
  .hero-container { padding: 0 20px; }
  section { padding: 60px 0; }

  #home { padding: 100px 0 60px; min-height: auto; }
  .hero-title { font-size: 58px; }
  .hero-subtitle { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .hero-valve { display: none; }
  .hero-stats { position: relative; right: auto; bottom: auto; margin-top: 32px; flex-wrap: wrap; }
  .hero-scroll { display: none; }

  .section-title { font-size: 42px; }
  .section-subtitle { font-size: 15px; margin-bottom: 36px; }

  .product-grid { grid-template-columns: 1fr; gap: 40px; }
  .savings-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }

  .calc-card { position: static; }

  footer { flex-direction: column; gap: 16px; text-align: center; padding: 32px 20px; }
  .footer-links { flex-wrap: wrap; justify-content: center; }

  /* Mobile menu overlay */
  .mobile-menu {
    position: fixed; top: 58px; left: 0; right: 0; bottom: 0;
    background: rgba(10,22,40,0.98); backdrop-filter: blur(20px);
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; gap: 24px; z-index: 999;
    transform: translateY(-100%); opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
  }
  .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .mobile-menu a {
    font-family: 'Bebas Neue', sans-serif; font-size: 36px; letter-spacing: 4px;
    color: var(--white-dim); text-decoration: none; transition: color 0.2s;
  }
  .mobile-menu a:hover { color: var(--cyan); }
  .mobile-menu .mobile-cta {
    background: linear-gradient(135deg, var(--cyan), var(--blue));
    color: #fff; padding: 14px 36px; border-radius: 8px;
    font-family: 'DM Sans', sans-serif; font-size: 14px;
    font-weight: 600; letter-spacing: 1px; text-transform: uppercase; text-decoration: none;
  }

  /* Hamburger */
  .nav-toggle {
    width: 28px; height: 20px; flex-direction: column; justify-content: space-between;
    cursor: pointer; position: relative; z-index: 1001;
    background: none; border: none; padding: 0;
  }
  .nav-toggle span {
    display: block; width: 100%; height: 2px; background: var(--white);
    transition: transform 0.3s, opacity 0.3s;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

  .page-hero h1 { font-size: 42px; }
}