/* ============================================================
   EHYPERLINK.IN — DESIGN SYSTEM v3
   Navy + Teal, glassmorphic cards, gradient-mesh backgrounds,
   premium modern SaaS feel — matching the aiadultmarketing.com
   sibling-site identity.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --navy: #0F2438;
    --navy-deep: #091724;
    --navy-soft: #47607A;
    --paper: #FFFFFF;
    --paper-alt: #F4F7F9;
    --teal: #2DD4BF;
    --teal-dark: #0E9C89;
    --line: #E1E7EC;
    --line-strong: #C4CFD8;

    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    --radius: 14px;
    --radius-sm: 8px;
    --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--navy);
    background: var(--paper);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--teal-dark); text-decoration: none; }
a:hover { color: var(--navy); }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 760px; }

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--navy);
    margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.3rem, 4.8vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-top: 2.4em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1.1em; }
p.lead { font-size: 1.15rem; color: var(--navy-soft); }

.link-underline { position: relative; white-space: nowrap; color: var(--teal); }

/* -------------------- HEADER -------------------- */
.site-header {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    position: sticky; top: 0; z-index: 50;
    transition: box-shadow 0.2s ease;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(15,36,56,0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.logo { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--navy); display: inline-flex; align-items: center; gap: 10px; }
.logo-mark { display: block; flex-shrink: 0; transition: transform 0.2s ease; }
.logo:hover .logo-mark { transform: scale(1.08); }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav > a { font-size: 0.92rem; font-weight: 600; color: var(--navy); }
.main-nav > a:hover { color: var(--teal-dark); }
.nav-cta { background: var(--navy); color: #fff !important; padding: 10px 22px; border-radius: 999px; }
.nav-cta:hover { background: var(--teal-dark); color: #fff !important; }

.nav-dropdown { position: relative; }
.nav-dropdown-trigger { display: inline-flex; align-items: center; gap: 5px; font-size: 0.92rem; font-weight: 600; color: var(--navy); }
.nav-dropdown-trigger:hover { color: var(--teal-dark); }
.nav-dropdown-trigger svg { transition: transform 0.15s ease; }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-panel {
    position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(6px);
    background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: 0 16px 40px rgba(15,36,56,0.14); padding: 10px; width: 300px;
    opacity: 0; visibility: hidden; transition: opacity 0.15s ease, transform 0.15s ease;
}
.nav-dropdown-panel-wide { width: 520px; }
.nav-dropdown-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.nav-dropdown:hover .nav-dropdown-panel { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(10px); }
.nav-dropdown-item { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: var(--radius-sm); }
.nav-dropdown-item:hover { background: var(--paper-alt); }
.nav-dropdown-item strong { font-family: var(--font-display); font-size: 0.92rem; color: var(--navy); }
.nav-dropdown-item span { font-size: 0.8rem; color: var(--navy-soft); }
.nav-dropdown-viewall { display: block; padding: 10px 12px; font-size: 0.84rem; font-weight: 700; color: var(--teal-dark); border-top: 1px solid var(--line); margin-top: 4px; }

.mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--navy); padding: 8px; }
.mobile-menu {
    display: none; flex-direction: column; background: var(--paper);
    position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 84vw); z-index: 60;
    padding: 90px 28px 28px; box-shadow: -12px 0 40px rgba(15,36,56,0.15);
    transform: translateX(100%); transition: transform 0.25s ease;
}
.mobile-menu.open { display: flex; transform: translateX(0); }
.mobile-menu a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 1rem; font-weight: 600; color: var(--navy); }
.mobile-menu .mobile-cta { margin-top: 20px; text-align: center; background: var(--navy); color: #fff; border-radius: 999px; border-bottom: none; padding: 14px; }
@media (max-width: 860px) { .main-nav { display: none; } .mobile-menu-toggle { display: block; } }

/* -------------------- HERO (gradient mesh) -------------------- */
.hero {
    padding: 90px 0;
    position: relative;
    background:
        radial-gradient(circle at 15% 20%, rgba(45,212,191,0.16), transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(45,212,191,0.10), transparent 50%),
        linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 100%);
    color: var(--paper);
    overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
.hero-copy h1 { max-width: 600px; color: var(--paper); }
.hero-sub { max-width: 520px; font-size: 1.15rem; color: #B9C6D1; }
.hero-visual img { width: 100%; max-width: 480px; margin: 0 auto; display: block; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } .hero-visual { order: -1; } }

/* -------------------- BUTTONS -------------------- */
.btn { display: inline-block; padding: 14px 30px; border-radius: 999px; font-weight: 700; font-size: 0.95rem; cursor: pointer; border: 2px solid transparent; font-family: var(--font-display); transition: transform 0.15s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--teal); color: var(--navy-deep) !important; }
.btn-primary:hover { background: #4FE3D1; }
.btn-secondary { background: transparent; color: var(--navy) !important; border-color: var(--navy); }
.btn-secondary:hover { background: var(--navy); color: #fff !important; }
.hero .btn-secondary { color: var(--paper) !important; border-color: rgba(255,255,255,0.4); }
.hero .btn-secondary:hover { background: rgba(255,255,255,0.1); }

/* -------------------- SECTIONS -------------------- */
.section { padding: 68px 0; }
.section-alt { background: var(--paper-alt); }
.cta-section {
    text-align: center; color: var(--paper); border-radius: 24px; margin: 0 24px; padding: 64px 24px;
    background: radial-gradient(circle at 30% 20%, rgba(45,212,191,0.25), transparent 55%), var(--navy-deep);
}
.cta-section .container { max-width: 640px; padding: 0; }
.cta-section h2 { color: var(--paper); margin-top: 0; }
.cta-section p { color: #B9C6D1; }

/* -------------------- CARDS (glassmorphic) -------------------- */
.service-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 32px; }
.card {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 4px 20px rgba(15,36,56,0.05);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(15,36,56,0.12); border-color: var(--teal); }
.card-lg { padding: 36px; }
.card h2, .card h3 { margin-top: 0; }
.link-arrow { font-weight: 700; font-size: 0.9rem; color: var(--teal-dark); }

/* -------------------- WHY GRID -------------------- */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; margin-top: 32px; }
.why-item { background: var(--paper-alt); border-radius: var(--radius); padding: 22px; }
.why-item h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; color: var(--navy); }
.why-item p { color: var(--navy-soft); font-size: 0.96rem; }

/* -------------------- CHIPS -------------------- */
.chip-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.chip-grid-lg .chip { font-size: 1rem; padding: 12px 20px; }
.chip { display: inline-block; background: var(--paper); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 18px; font-size: 0.86rem; font-weight: 600; color: var(--navy); }
.chip:hover { background: var(--navy); border-color: var(--navy); color: #fff; }

/* -------------------- PAGE HEADER -------------------- */
.page-header { padding: 48px 0 8px; }
.breadcrumb { font-size: 0.85rem; color: var(--navy-soft); margin-bottom: 16px; font-family: var(--font-mono); }
.breadcrumb a { color: var(--navy-soft); }
.breadcrumb a:hover { color: var(--teal-dark); }

/* -------------------- DIRECT ANSWER / FAQ -------------------- */
.direct-answer { background: linear-gradient(135deg, rgba(45,212,191,0.10), rgba(45,212,191,0.02)); border: 1px solid var(--teal); padding: 18px 22px; border-radius: var(--radius); margin: 24px 0; }
.form-error { background: #FDECEC; border: 1px solid #E4A0A0; padding: 14px 18px; border-radius: var(--radius); margin-bottom: 18px; }
.form-error p { margin: 0; color: #9C2B2B; font-weight: 600; font-size: 0.92rem; }
.direct-answer p { margin: 0; font-weight: 600; }
.faq-list { margin-top: 24px; }
.faq-item { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq-item h3 { font-family: var(--font-body); font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; }
.faq-item p { color: var(--navy-soft); margin: 0; }

.check-list { list-style: none; padding: 0; margin: 16px 0 0; }
.check-list li { padding-left: 28px; position: relative; margin-bottom: 10px; font-size: 0.94rem; color: var(--navy-soft); }
.check-list li::before { content: '\2713'; position: absolute; left: 0; color: var(--teal-dark); font-weight: 700; }

.cta-inline { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); }
.service-hero-img { width: 100%; max-width: 480px; aspect-ratio: 4/3; object-fit: cover; margin: 0 auto; border-radius: var(--radius); box-shadow: 0 12px 30px rgba(15,36,56,0.1); display: block; }
.service-card-icon { padding: 10px; background: var(--paper-alt); border-radius: 12px; margin-bottom: 14px; }

.mistake-list { list-style: none; counter-reset: mistake; padding: 0; margin: 24px 0 0; }
.mistake-list li { counter-increment: mistake; position: relative; padding: 16px 0 16px 48px; border-bottom: 1px solid var(--line); font-size: 0.96rem; color: var(--navy-soft); }
.mistake-list li:last-child { border-bottom: none; }
.mistake-list li::before { content: counter(mistake); position: absolute; left: 0; top: 14px; width: 28px; height: 28px; border-radius: 50%; background: var(--navy); color: var(--teal); font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.mistake-list strong { color: var(--navy); }

.process-timeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; margin-top: 32px; position: relative; }
.process-step { position: relative; background: var(--paper-alt); border-radius: var(--radius); padding: 20px; }
.process-num { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; color: var(--teal-dark); margin-bottom: 8px; }
.process-step h3 { margin-bottom: 6px; }
.process-step p { font-size: 0.92rem; color: var(--navy-soft); }

.glossary-list { margin: 24px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px 32px; }
.glossary-item { border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.glossary-item dt { font-family: var(--font-mono); font-weight: 500; font-size: 0.9rem; color: var(--teal-dark); margin-bottom: 4px; }
.glossary-item dd { margin: 0; font-size: 0.9rem; color: var(--navy-soft); line-height: 1.55; }

/* -------------------- CONTACT -------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; margin-top: 24px; }
.contact-info h2 { margin-top: 0; }
.contact-info p { font-size: 0.96rem; color: var(--navy-soft); }
.contact-info .btn-secondary { margin-top: 8px; }
.contact-form-wrap { background: var(--paper-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form label { font-size: 0.86rem; font-weight: 700; color: var(--navy); display: flex; flex-direction: column; gap: 6px; }
.contact-form input, .contact-form select, .contact-form textarea { font-family: var(--font-body); font-size: 0.95rem; padding: 11px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--paper); color: var(--navy); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--teal); outline: none; }
.form-note { font-size: 0.8rem; color: var(--navy-soft); margin-top: 12px; font-family: var(--font-mono); }
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } }

/* -------------------- BLOG -------------------- */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-top: 32px; }
.blog-card { padding: 0; overflow: hidden; }
.blog-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.blog-card h2, .blog-card p, .blog-card .post-date, .blog-card .link-arrow { padding-left: 28px; padding-right: 28px; }
.blog-card h2 { margin-top: 22px; }
.blog-card .link-arrow { display: inline-block; margin-bottom: 24px; }
.blog-post-hero-img { width: 100%; border-radius: var(--radius); box-shadow: 0 12px 30px rgba(15,36,56,0.1); margin-bottom: 8px; }
.post-date { font-family: var(--font-mono); font-size: 0.8rem; color: var(--navy-soft); text-transform: uppercase; letter-spacing: 0.03em; }
.blog-post-content p { font-size: 1.05rem; }

/* -------------------- FOOTER CTA STRIP -------------------- */
.footer-cta {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
    padding: 40px 0;
}
.footer-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-cta-inner h2 { color: #fff; margin: 0 0 4px; font-size: 1.4rem; }
.footer-cta-inner p { color: #B9C6D1; margin: 0; }

/* -------------------- FOOTER (5-column) -------------------- */
.site-footer { background: var(--navy-deep); color: #A9B7C3; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 28px; }
.footer-col-brand .logo { color: var(--paper); margin-bottom: 10px; }
.footer-grid .logo { color: var(--paper); }
.footer-col p { font-size: 0.88rem; color: #7C8B98; margin-bottom: 6px; }
.footer-address { max-width: 220px; line-height: 1.5; }
.footer-contact-line { display: block; font-size: 0.88rem; color: #A9B7C3; padding: 3px 0; }
.footer-contact-line:hover { color: var(--teal); }
.footer-col h4 { font-family: var(--font-mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--teal); margin-bottom: 14px; }
.footer-col a { display: block; font-size: 0.9rem; color: #A9B7C3; padding: 5px 0; }
.footer-col a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid #1C3348; margin-top: 40px; padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.82rem; color: #5E6E7A; }
.footer-bottom-note { margin: 0; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr 1fr; } .footer-col-brand { grid-column: 1 / -1; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-cta-inner { justify-content: center; text-align: center; } }

/* -------------------- COMPARISON TABLE -------------------- */
.compare-table { width: 100%; border-collapse: collapse; margin-top: 28px; background: var(--paper); border-radius: var(--radius); overflow: hidden; box-shadow: 0 4px 20px rgba(15,36,56,0.06); }
.compare-table th, .compare-table td { padding: 14px 18px; text-align: left; font-size: 0.92rem; border-bottom: 1px solid var(--line); }
.compare-table th { font-family: var(--font-display); background: var(--navy); color: #fff; }
.compare-table td.us { color: var(--teal-dark); font-weight: 600; }
.compare-table tr:last-child td { border-bottom: none; }

/* -------------------- PORTFOLIO WORK GRID -------------------- */
.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 20px; }
.work-item { display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-alt); text-decoration: none; color: inherit; transition: border-color 0.15s ease, transform 0.15s ease; }
.work-item:hover { border-color: var(--teal); transform: translateY(-2px); }
.work-item span { display: block; font-family: var(--font-display); font-weight: 700; font-size: 0.92rem; color: var(--navy); margin-bottom: 4px; }
.work-item small { display: block; font-size: 0.8rem; color: var(--navy-soft); }
@media (max-width: 720px) { .work-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .work-grid { grid-template-columns: 1fr; } }