*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #1a6fc4;
  --blue-dark: #1255a0;
  --blue-light: #e8f1fb;
  --blue-mid: #3b89d8;
  --white: #ffffff;
  --off-white: #f4f7fc;
  --gray: #6b7a8f;
  --gray-light: #e2e8f0;
  --text: #1e2a3a;
  --text-light: #4a5568;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(26,111,196,0.10);
  --shadow-lg: 0 8px 40px rgba(26,111,196,0.15);
}

body { font-family: 'Inter', sans-serif; color: var(--text); background: var(--white); line-height: 1.7; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* HEADER */
header { background: var(--white); border-bottom: 1px solid var(--gray-light); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 28px; }
.logo strong { display: block; font-size: 16px; color: var(--blue-dark); }
.logo small { font-size: 11px; color: var(--gray); }
nav { display: flex; align-items: center; gap: 28px; }
nav a { font-size: 14px; font-weight: 500; color: var(--text); }
nav a:hover { color: var(--blue); text-decoration: none; }
.btn-sale { background: var(--blue); color: white; border: none; padding: 8px 18px; border-radius: 20px; font-size: 13px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
.btn-sale:hover { background: var(--blue-dark); }

/* HERO */
.hero { background: linear-gradient(135deg, #1255a0 0%, #1a6fc4 50%, #3b89d8 100%); color: white; padding: 80px 0 60px; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-tag { display: inline-block; background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.3); padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px; }
.hero h1 { font-size: 48px; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.hero h1 span { color: #a8d4ff; }
.hero p { font-size: 16px; opacity: 0.9; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary { background: white; color: var(--blue-dark); padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 15px; border: none; cursor: pointer; transition: all 0.2s; display: inline-block; }
.btn-primary:hover { background: var(--blue-light); text-decoration: none; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.6); padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 15px; display: inline-block; transition: all 0.2s; }
.btn-secondary:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.hero-stats { display: flex; flex-direction: column; gap: 16px; }
.stat { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius); padding: 20px 24px; }
.stat strong { display: block; font-size: 26px; font-weight: 700; }
.stat span { font-size: 13px; opacity: 0.85; }

/* SECTIONS */
.section { padding: 80px 0; }
.bg-light { background: var(--off-white); }
.section-header { text-align: center; margin-bottom: 52px; }
.section-tag { display: inline-block; background: var(--blue-light); color: var(--blue); padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.section-header h2 { font-size: 36px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-light); max-width: 600px; margin: 0 auto; }

/* ABOUT */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.content-block p { margin-bottom: 16px; color: var(--text-light); font-size: 15px; }
.content-block ul { margin: 12px 0 16px 20px; }
.content-block li { margin-bottom: 8px; color: var(--text-light); font-size: 15px; }
.info-cards { display: flex; flex-direction: column; gap: 16px; }
.info-card { border-radius: var(--radius); padding: 22px; }
.info-card.blue { background: var(--blue); color: white; }
.info-card.blue h4 { margin-bottom: 8px; font-size: 15px; }
.info-card.blue p { font-size: 14px; opacity: 0.92; margin: 0; }
.info-card.light { background: var(--blue-light); border: 1px solid #c5daf5; }
.info-card.light h4 { color: var(--blue-dark); margin-bottom: 8px; font-size: 15px; }
.info-card.light p, .info-card.light li { color: var(--text-light); font-size: 14px; }
.info-card.light ul { margin-left: 18px; }
.info-card.light li { margin-bottom: 4px; }

/* SYMPTOMS */
.symptoms-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; }
.symptom-card { background: white; border-radius: var(--radius); padding: 24px 20px; box-shadow: var(--shadow); border-top: 3px solid var(--blue-light); transition: transform 0.2s, box-shadow 0.2s; }
.symptom-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.symptom-icon { font-size: 28px; margin-bottom: 10px; }
.symptom-card h4 { font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.symptom-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; }
.severity { display: inline-block; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.severity.high { background: #dbeafe; color: #1e40af; }
.severity.medium { background: #fef9c3; color: #854d0e; }
.severity.low { background: #dcfce7; color: #166534; }
.severity.critical { background: #fee2e2; color: #991b1b; }
.cta-banner { background: #fff7ed; border: 1px solid #fed7aa; border-radius: var(--radius); padding: 18px 24px; color: #9a3412; font-size: 14px; }

/* TREATMENTS */
.treatment-tier { margin-bottom: 40px; }
.tier-label { font-size: 18px; font-weight: 600; margin-bottom: 20px; color: var(--text); }
.treatment-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.treatment-card { background: var(--off-white); border-radius: var(--radius); padding: 24px; border: 1px solid var(--gray-light); position: relative; }
.treatment-card.featured { background: var(--blue-light); border-color: var(--blue-mid); }
.treatment-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 10px; color: var(--text); }
.treatment-card p { font-size: 13px; color: var(--text-light); line-height: 1.65; margin-bottom: 8px; }
.treatment-card em { font-size: 12px; color: var(--blue); }
.new-badge { display: inline-block; background: var(--blue); color: white; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; }
.emerging-box { background: linear-gradient(135deg, #1255a0, #1a6fc4); color: white; border-radius: 16px; padding: 36px; margin-top: 20px; }
.emerging-box h3 { font-size: 20px; margin-bottom: 24px; }
.emerging-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.emerging-grid h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; color: #a8d4ff; }
.emerging-grid p { font-size: 13px; opacity: 0.88; line-height: 1.6; }

/* RESOURCES */
.resources-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.resource-card { background: white; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1px solid var(--gray-light); display: block; transition: all 0.2s; color: var(--text); }
.resource-card:hover { border-color: var(--blue); box-shadow: var(--shadow-lg); text-decoration: none; transform: translateY(-2px); }
.resource-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--blue-dark); }
.resource-card p { font-size: 14px; color: var(--text-light); margin-bottom: 12px; }
.resource-card span { font-size: 13px; color: var(--blue); font-weight: 500; }

/* DOMAINS FOR SALE SECTION */
.domains-sale-section { background: linear-gradient(180deg, #f0f6ff 0%, #e8f1fb 100%); padding: 80px 0; border-top: 1px solid #c5daf5; }
.domains-sale-section .section-tag { background: #fef3c7; color: #92400e; }
.domains-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 28px; }
.domain-sale-card { background: white; border-radius: var(--radius); padding: 28px 22px; border: 2px solid var(--gray-light); text-align: center; transition: all 0.2s; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.domain-sale-card:hover { border-color: var(--blue); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.domain-sale-card.primary { border-color: var(--blue); background: var(--blue-light); }
.domain-sale-icon { font-size: 32px; }
.domain-sale-card h3 { font-size: 15px; font-weight: 700; color: var(--blue-dark); }
.domain-sale-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; flex: 1; }
.domain-sale-badge { display: inline-block; background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; padding: 3px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.domain-sale-card.primary .domain-sale-badge { background: var(--blue); color: white; border-color: var(--blue); }
.btn-domain-inquiry { background: var(--blue); color: white; border: none; padding: 9px 20px; border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; transition: background 0.2s; width: 100%; margin-top: 4px; }
.btn-domain-inquiry:hover { background: var(--blue-dark); }
.domain-package-cta { background: white; border: 1px solid #c5daf5; border-radius: var(--radius); padding: 18px 24px; text-align: center; font-size: 14px; color: var(--text-light); }
.domain-package-cta strong { color: var(--text); }
.inline-link { background: none; border: none; color: var(--blue); font-size: 14px; font-weight: 600; cursor: pointer; padding: 0; text-decoration: underline; }
.inline-link:hover { color: var(--blue-dark); }

/* POPUP DOMAIN LIST */
.domain-list { background: var(--off-white); border-radius: 10px; padding: 14px; margin-bottom: 18px; display: flex; flex-direction: column; gap: 8px; }
.domain-item { display: flex; justify-content: space-between; align-items: center; }
.domain-name { font-size: 14px; font-weight: 600; color: var(--blue-dark); }
.domain-tag { font-size: 11px; font-weight: 600; background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; padding: 2px 10px; border-radius: 20px; }
.domain-item:first-child .domain-tag { background: var(--blue); color: white; border-color: var(--blue); }

/* FOOTER */
footer { background: var(--text); color: #cbd5e1; padding: 48px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-inner strong { color: white; font-size: 16px; display: block; margin-bottom: 10px; }
.footer-inner p { font-size: 13px; line-height: 1.7; }
.footer-domains { margin-top: 12px; padding-top: 12px; border-top: 1px solid #334155; }
.footer-domains p { color: #94a3b8; font-size: 12px; }
.footer-domains strong { color: #cbd5e1; font-size: 12px; display: inline; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: #94a3b8; font-size: 14px; }
.footer-links a:hover { color: white; }
.footer-sale-btn { background: var(--blue); color: white; border: none; padding: 10px 18px; border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; margin-top: 8px; }
.footer-bottom { border-top: 1px solid #334155; padding: 16px 24px; text-align: center; font-size: 12px; color: #64748b; }

/* POPUP */
.popup-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.65); z-index: 9999; align-items: center; justify-content: center; }
.popup-overlay.active { display: flex; }
.popup-box { background: white; border-radius: 16px; padding: 36px; max-width: 500px; width: 90%; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.3); max-height: 90vh; overflow-y: auto; }
.popup-close { position: absolute; top: 16px; right: 20px; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--gray); line-height: 1; }
.popup-badge { display: inline-block; background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.popup-box h2 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.popup-box > p { font-size: 14px; color: var(--text-light); margin-bottom: 16px; line-height: 1.7; }
.popup-box input, .popup-box textarea { width: 100%; border: 1px solid var(--gray-light); border-radius: 8px; padding: 10px 14px; font-size: 14px; margin-bottom: 12px; font-family: inherit; color: var(--text); outline: none; transition: border 0.2s; }
.popup-box input:focus, .popup-box textarea:focus { border-color: var(--blue); }
.captcha-box { background: var(--off-white); border-radius: 8px; padding: 14px; margin-bottom: 16px; }
.captcha-box label { font-size: 13px; color: var(--text-light); display: block; margin-bottom: 8px; }
.captcha-box input { margin-bottom: 0; }
.popup-box .btn-primary { width: 100%; text-align: center; padding: 12px; font-size: 15px; background: var(--blue); color: white; border-radius: 8px; border: none; cursor: pointer; }
.popup-box .btn-primary:hover { background: var(--blue-dark); }
.form-success { color: #16a34a; font-size: 13px; margin-top: 10px; text-align: center; }
.form-error { color: #dc2626; font-size: 13px; margin-top: 10px; text-align: center; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .two-col { grid-template-columns: 1fr; }
  .symptoms-grid { grid-template-columns: repeat(2, 1fr); }
  .emerging-grid { grid-template-columns: 1fr; }
  .resources-grid { grid-template-columns: 1fr; }
  .domains-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  nav { gap: 16px; }
}
@media (max-width: 600px) {
  .hero h1 { font-size: 28px; }
  .symptoms-grid { grid-template-columns: 1fr; }
  .treatment-cards { grid-template-columns: 1fr; }
  .domains-grid { grid-template-columns: 1fr; }
  nav a { display: none; }
}