/*
Theme Name: By Karen
Theme URI: https://www.by-karen.de/
Author: Karen Martinez
Author URI: https://www.by-karen.de/
Description: Lightweight portfolio theme for Karen Martinez — Web Designer & HubSpot Developer. No page builder required: projects and testimonials are managed as custom post types, and hero/contact details from the Customizer.
Version: 1.2.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bykaren
*/

/* ---------- Tokens ---------- */
:root {
  --bg: #0d0e10;
  --bg-2: #131518;
  --surface: #1a1d21;
  --surface-2: #22262b;
  --line: #2c3036;
  --text: #eef0f2;
  --muted: #a4abb3;
  --accent: #72ffb4;
  --accent-ink: #062113;
  --accent-soft: rgba(114, 255, 180, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Exo 2", "Inter", system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #fff; }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--accent-ink); }

.screen-reader-text {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px); white-space: nowrap;
}
.skip-link:focus {
  clip: auto; width: auto; height: auto; z-index: 1000; top: 12px; left: 12px;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 8px;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(72px, 10vw, 128px) 0; }
.section--alt { background: var(--bg-2); border-block: 1px solid var(--line); }

.eyebrow {
  display: inline-block;
  font: 500 0.85rem/1 var(--font-mono);
  color: var(--accent);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.eyebrow::before { content: "// "; opacity: 0.6; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head p { color: var(--muted); font-size: 1.1rem; }
.section-head--center { margin-inline: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px;
  font: 600 1rem/1 var(--font-body); text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { background: #fff; color: var(--accent-ink); }
.btn--ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13, 14, 16, 0.75);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.site-logo {
  font: 800 1.15rem/1 var(--font-head); letter-spacing: 0.12em;
  color: var(--text); text-decoration: none;
}
.site-logo span { color: var(--accent); }
.site-logo img { max-height: 40px; width: auto; }
.main-nav ul { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; align-items: center; }
.main-nav a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.main-nav a:not(.btn):hover, .main-nav .current-menu-item > a { color: var(--text); }
.main-nav .btn { padding: 10px 18px; font-size: 0.92rem; }
.lang-switch { display: flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; }
.main-nav .lang-switch a {
  font: 600 0.78rem/1 var(--font-mono); letter-spacing: 0.04em; color: var(--muted);
  padding: 7px 10px; border-radius: 999px;
}
.main-nav .lang-switch a:hover { color: var(--text); }
.main-nav .lang-switch a[aria-current] { background: var(--accent-soft); color: var(--accent); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 10px; width: 44px; height: 44px; cursor: pointer; }
.nav-toggle svg { width: 22px; height: 22px; margin: auto; }

@media (max-width: 860px) {
  .nav-toggle { display: grid; place-items: center; }
  .main-nav {
    position: fixed; inset: 72px 0 auto 0; background: var(--bg);
    border-bottom: 1px solid var(--line); padding: 16px var(--gutter) 28px;
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }
  .main-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav a:not(.btn) { display: block; padding: 12px 0; font-size: 1.1rem; }
  .main-nav .btn { display: flex; justify-content: center; margin-top: 12px; }
  .lang-switch { align-self: flex-start; margin-top: 16px; }
  .main-nav .lang-switch a { display: inline-block; padding: 10px 16px; font-size: 0.9rem; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(56px, 9vw, 112px) 0 clamp(64px, 9vw, 104px); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto auto; width: 620px; height: 620px;
  background: radial-gradient(closest-side, rgba(114, 255, 180, 0.16), transparent 70%);
  pointer-events: none;
}
.hero__grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 64px); align-items: center; position: relative; }
.hero__status {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 0.88rem; color: var(--muted); margin-bottom: 28px; background: var(--surface);
}
.hero__status i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero__lead { font-size: clamp(1.1rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 580px; margin-bottom: 36px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

.code-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; font: 0.92rem/1.75 var(--font-mono);
}
.code-card__bar { display: flex; gap: 8px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.8rem; }
.code-card__bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--surface-2); }
.code-card__bar i:first-child { background: #ff5f57; }
.code-card__bar i:nth-child(2) { background: #febc2e; }
.code-card__bar i:nth-child(3) { background: #28c840; margin-right: 8px; }
.code-card pre { margin: 0; padding: 22px 22px 26px; white-space: pre-wrap; word-break: break-word; color: var(--text); }
.tok-k { color: #c792ea; } .tok-p { color: #82aaff; } .tok-s { color: var(--accent); } .tok-c { color: #6b737c; }

.trust { margin-top: clamp(56px, 7vw, 88px); display: flex; flex-wrap: wrap; align-items: center; gap: 14px 36px; color: var(--muted); }
.trust__label { font: 500 0.82rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; }
.trust__list { display: flex; flex-wrap: wrap; gap: 12px 32px; list-style: none; margin: 0; padding: 0; }
.trust__list li { font: 700 1.05rem/1 var(--font-head); color: #c9ced4; letter-spacing: 0.02em; }

@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
}

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid--3, .grid--2, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: rgba(114, 255, 180, 0.4); }
.card p { color: var(--muted); margin: 0; }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 20px;
}
.card__icon svg { width: 24px; height: 24px; }

/* ---------- Projects ---------- */
.project-card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: border-color 0.25s ease, transform 0.25s ease;
}
.project-card:hover { border-color: rgba(114, 255, 180, 0.45); transform: translateY(-4px); color: inherit; }
.project-card__media { aspect-ratio: 16 / 10; background: var(--surface-2); overflow: hidden; }
.project-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-card__media img { transform: scale(1.04); }
.project-card__body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project-card__body h3 { margin: 0; }
.project-card__body p { color: var(--muted); margin: 0; font-size: 0.98rem; }
.project-card__more { margin-top: auto; padding-top: 6px; color: var(--accent); font-weight: 600; font-size: 0.95rem; display: inline-flex; gap: 8px; align-items: center; }
.project-card__more::after { content: "→"; transition: transform 0.2s ease; }
.project-card:hover .project-card__more::after { transform: translateX(4px); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.tags li, .tag {
  font: 500 0.78rem/1 var(--font-mono); color: var(--accent);
  background: var(--accent-soft); padding: 7px 10px; border-radius: 6px;
}

/* ---------- Process ---------- */
.steps { counter-reset: step; }
.step { position: relative; padding-top: 56px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 0; left: 0;
  font: 700 1rem/1 var(--font-mono); color: var(--accent);
}
.step::after { content: ""; position: absolute; top: 8px; left: 44px; right: 0; height: 1px; background: var(--line); }
.step h3 { font-size: 1.15rem; }
.step p { color: var(--muted); font-size: 0.98rem; margin: 0; }

/* ---------- Testimonials ---------- */
.quote {
  margin: 0; display: flex; flex-direction: column; gap: 24px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px;
}
.quote blockquote { margin: 0; font-size: 1.05rem; color: #d6dade; }
.quote blockquote p:last-child { margin-bottom: 0; }
.quote__highlight { font: 600 1.3rem/1.4 var(--font-head); color: var(--text); }
.quote__highlight::before { content: "“"; color: var(--accent); }
.quote__highlight::after { content: "”"; color: var(--accent); }
.quote figcaption { margin-top: auto; display: flex; align-items: center; gap: 14px; }
.quote__avatar {
  width: 46px; height: 46px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); font: 700 1rem/1 var(--font-head);
}
.quote__avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.quote cite { font-style: normal; font-weight: 600; display: block; }
.quote figcaption span { color: var(--muted); font-size: 0.9rem; }

/* ---------- About ---------- */
.about__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.about__text { color: #cfd4d9; font-size: 1.08rem; }
.about__text strong { color: var(--text); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 32px 0 0; }
.stat { border-top: 1px solid var(--line); padding-top: 14px; }
.stat b { display: block; font: 700 2rem/1 var(--font-head); color: var(--accent); margin-bottom: 6px; }
.stat span { color: var(--muted); font-size: 0.9rem; }
.toolbox h3 { font-size: 1rem; font-family: var(--font-mono); color: var(--muted); font-weight: 500; margin: 0 0 14px; }
.toolbox .tags { margin-bottom: 28px; }
.toolbox .tags li { color: var(--text); background: var(--surface-2); }
.certs { display: grid; gap: 12px; list-style: none; padding: 0; margin: 0; }
.certs li { display: flex; gap: 14px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.certs img { width: 64px; height: 44px; object-fit: cover; border-radius: 6px; flex: none; }
.certs b { display: block; font-size: 0.95rem; }
.certs span { color: var(--muted); font-size: 0.85rem; }
@media (max-width: 960px) { .about__grid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .stats { grid-template-columns: 1fr 1fr; } }

/* ---------- Contact ---------- */
.contact__box {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px);
  background: linear-gradient(140deg, #18241e 0%, var(--surface) 55%);
  border: 1px solid var(--line); border-radius: 24px; padding: clamp(28px, 5vw, 56px);
}
.contact__channels { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.contact__channels a {
  display: flex; align-items: center; gap: 14px; color: var(--text); text-decoration: none;
  padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(0, 0, 0, 0.2);
}
.contact__channels a:hover { border-color: var(--accent); }
.contact__channels svg { width: 20px; height: 20px; color: var(--accent); flex: none; }
.contact__channels small { display: block; color: var(--muted); font-size: 0.8rem; }

.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 6px; font-size: 0.9rem; font-weight: 500; }
.form input, .form textarea, .form select {
  width: 100%; padding: 13px 14px; border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3); border: 1px solid var(--line); color: var(--text);
  font: inherit; font-size: 1rem;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--accent); }
.form textarea { min-height: 130px; resize: vertical; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form__hp { position: absolute; left: -9999px; }
.form .btn { justify-self: start; }
.notice { padding: 14px 16px; border-radius: var(--radius-sm); font-size: 0.95rem; }
.notice--ok { background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(114, 255, 180, 0.35); }
.notice--err { background: rgba(255, 95, 87, 0.1); color: #ff8a84; border: 1px solid rgba(255, 95, 87, 0.35); }
@media (max-width: 860px) { .contact__box { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .form__row { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--muted); font-size: 0.92rem; }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
.social { display: flex; gap: 10px; list-style: none; margin: 0; padding: 0; }
.social a { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); color: var(--muted); }
.social a:hover { color: var(--accent); border-color: var(--accent); }
.social svg { width: 18px; height: 18px; }

/* ---------- Single project (case study) ---------- */
.case-hero { padding: clamp(48px, 7vw, 88px) 0 40px; }
.case-hero__back { color: var(--muted); text-decoration: none; font-size: 0.92rem; display: inline-block; margin-bottom: 28px; }
.case-hero__back:hover { color: var(--accent); }
.case-hero h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); max-width: 900px; }
.case-hero__lead { color: var(--muted); font-size: 1.2rem; max-width: 760px; }
.case-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }
.case-meta dt { font: 500 0.78rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 8px; }
.case-meta dd { margin: 0; font-weight: 600; }
@media (max-width: 640px) { .case-meta { grid-template-columns: 1fr; } }
.case-cover { margin: 0 auto 64px; }
.case-cover img { border-radius: var(--radius); border: 1px solid var(--line); width: 100%; }
.entry-content { max-width: 760px; margin: 0 auto; font-size: 1.08rem; color: #d3d8dd; }
.entry-content h2 { font-size: 1.7rem; margin-top: 2em; color: var(--text); }
.entry-content h3 { margin-top: 1.6em; color: var(--text); }
.entry-content li { margin-bottom: 0.45em; }
.entry-content ul li::marker { color: var(--accent); }
.entry-content strong { color: var(--text); }
.entry-content img, .entry-content figure { border-radius: var(--radius-sm); margin: 2em 0; }
.entry-content .results { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--radius-sm); padding: 8px 28px 16px; margin: 2em 0; }
.case-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 72px; }
.case-nav a { display: block; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--text); background: var(--surface); }
.case-nav a:hover { border-color: var(--accent); }
.case-nav small { display: block; color: var(--muted); font-family: var(--font-mono); margin-bottom: 6px; }
.case-nav .next { text-align: right; grid-column: 2; }
@media (max-width: 640px) { .case-nav { grid-template-columns: 1fr; } .case-nav .next { grid-column: auto; } }

.cta-band { text-align: center; }
.cta-band h2 { max-width: 720px; margin-inline: auto; }
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 28px; }

/* ---------- Generic pages ---------- */
.page-wrap { padding: clamp(48px, 7vw, 88px) 0; }
.post-list { display: grid; gap: 22px; }
.pagination { margin-top: 40px; display: flex; gap: 8px; flex-wrap: wrap; }
.pagination .page-numbers { padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--text); }
.pagination .current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* ---------- Motion ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}