/*
Theme Name: Robotik
Theme URI: https://example.com/robotik
Author: Robotik Theme
Author URI: https://example.com
Description: Modernes, vollständig anpassbares WordPress-Theme für Roboter-Anbieter (Putzroboter, Dinerroboter, Schwerlastroboter). Mit Custom Post Type für Roboter, Kategorie-Übersichten, Bild-Slider, technischen Datenblättern, Bühnen-/Highlight-Element, animierter Pulswelle im Header und umfangreichen Customizer-Optionen. Schrift selbst gehostet (DSGVO-konform, kein Google-Aufruf).
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
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: robotik
Tags: custom-colors, custom-menu, custom-logo, featured-images, full-width-template, theme-options, translation-ready
*/

/* =========================================================
   Selbst gehostete Schrift (Orbitron, OFL-Lizenz)
   Pfad relativ zu style.css
   ========================================================= */
@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('assets/fonts/orbitron-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('assets/fonts/orbitron-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('assets/fonts/orbitron-900.woff2') format('woff2');
}

/* =========================================================
   Design-Tokens (per Customizer überschreibbar, siehe inc/customizer.php)
   ========================================================= */
:root {
  --color-dark: #2E3D17;
  --color-green: #607F26;
  --color-light: #EFF4E1;

  --color-dark-rgb: 46, 61, 23;
  --color-green-rgb: 96, 127, 38;
  --color-light-rgb: 239, 244, 225;

  --gradient-main: linear-gradient(135deg, var(--color-dark) 0%, var(--color-green) 100%);
  --gradient-soft: linear-gradient(135deg, rgba(var(--color-green-rgb), 0.08), rgba(var(--color-dark-rgb), 0.04));

  --font-display: 'Orbitron', 'Segoe UI', Tahoma, sans-serif;
  --font-body: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --text-dark: #1d2710;
  --text-muted: #5b6a44;
  --white: #ffffff;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 40px -18px rgba(var(--color-dark-rgb), 0.45);
  --shadow-sm: 0 8px 22px -12px rgba(var(--color-dark-rgb), 0.4);

  --container: 1180px;
  --header-h: 76px;
}

/* =========================================================
   Reset / Basis
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-green); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-dark); }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--color-dark);
  line-height: 1.15;
  letter-spacing: .5px;
  margin: 0 0 .5em;
  font-weight: 700;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.5rem); }

p { margin: 0 0 1.1em; }

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.section { padding: clamp(48px, 8vw, 96px) 0; }
.section--alt { background: var(--color-light); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto clamp(32px, 5vw, 56px); }
.section__head p { color: var(--text-muted); font-size: 1.1rem; }
.section__kicker {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 14px;
}

.screen-reader-text {
  border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%);
  height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--color-dark); color: #fff; padding: 12px 18px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; color:#fff; }

/* =========================================================
   Buttons / CTA
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .5px;
  padding: 14px 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--gradient-main); color: var(--white); box-shadow: var(--shadow-sm); }
.btn--primary:hover { color: var(--white); box-shadow: var(--shadow); }
.btn--ghost { background: transparent; color: var(--color-dark); border-color: var(--color-green); }
.btn--ghost:hover { background: var(--color-green); color: var(--white); }
.btn--light { background: var(--color-light); color: var(--color-dark); }
.btn--light:hover { background: var(--white); color: var(--color-dark); }
.btn--sm { padding: 10px 20px; font-size: .85rem; }

/* =========================================================
   Header / Navigation
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(var(--color-dark-rgb), .08);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: var(--header-h); gap: 24px;
}
.site-branding { display: flex; align-items: center; gap: 12px; }
.site-branding img { max-height: 46px; width: auto; }
.site-title {
  font-family: var(--font-display); font-weight: 900; font-size: 1.4rem;
  color: var(--color-dark); margin: 0; letter-spacing: 1px;
}
.site-title a { color: inherit; }
.site-description { margin: 0; font-size: .8rem; color: var(--text-muted); }

.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; align-items: center; }
.main-nav li { position: relative; }
.main-nav a {
  display: block; padding: 10px 16px; color: var(--color-dark); font-weight: 600;
  font-size: .95rem; border-radius: 999px;
}
.main-nav > ul > li > a:hover,
.main-nav .current-menu-item > a,
.main-nav .current_page_item > a { background: var(--color-light); color: var(--color-dark); }

/* Dropdown */
.main-nav .sub-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 230px;
  background: var(--white); border-radius: var(--radius-sm); box-shadow: var(--shadow);
  padding: 8px; display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .2s ease; border: 1px solid rgba(var(--color-dark-rgb), .06);
}
.main-nav li:hover > .sub-menu,
.main-nav li:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.main-nav .menu-item-has-children > a::after {
  content: '▾'; margin-left: 6px; font-size: .8em; opacity: .7;
}
.main-nav .sub-menu a { padding: 10px 14px; border-radius: 8px; font-weight: 500; }
.main-nav .sub-menu a:hover { background: var(--color-light); }

.nav-toggle {
  display: none; background: var(--color-dark); color: #fff; border: 0;
  width: 46px; height: 46px; border-radius: 12px; cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 22px; height: 2px; background: #fff; position: relative; transition: .25s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ''; position: absolute; left: 0; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* =========================================================
   Hero / Header mit Pulswelle
   ========================================================= */
.hero {
  position: relative; overflow: hidden;
  background: var(--gradient-main);
  color: var(--white);
  padding: clamp(60px, 11vw, 130px) 0 clamp(70px, 12vw, 150px);
  isolation: isolate;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background-size: cover; background-position: center;
  opacity: .28; mix-blend-mode: luminosity;
}
.hero::after { /* dunkler Verlauf für Lesbarkeit */
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(120deg, rgba(var(--color-dark-rgb),.85) 0%, rgba(var(--color-dark-rgb),.45) 60%, rgba(var(--color-green-rgb),.35) 100%);
}
.hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero__content { max-width: 640px; }
.hero h1 { color: var(--white); }
.hero__claim {
  font-family: var(--font-display); font-weight: 500; letter-spacing: 4px;
  text-transform: uppercase; font-size: .85rem; opacity: .9; margin-bottom: 18px;
  display: inline-block; padding: 6px 14px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px;
}
.hero__sub { font-size: 1.2rem; opacity: .95; max-width: 540px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* Pulswelle */
.pulse {
  position: absolute; z-index: -1;
  top: 50%; right: 14%; transform: translate(50%, -50%);
  width: 460px; height: 460px;
  display: grid; place-items: center; pointer-events: none;
}
.pulse__core {
  width: 70px; height: 70px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.95), rgba(var(--color-light-rgb),.6));
  box-shadow: 0 0 40px rgba(var(--color-light-rgb),.6);
}
.pulse__ring {
  position: absolute; border-radius: 50%;
  border: 2px solid rgba(var(--color-light-rgb), .6);
  animation: pulse-wave 4s cubic-bezier(.2,.6,.4,1) infinite;
}
.pulse__ring:nth-child(2) { animation-delay: 1s; }
.pulse__ring:nth-child(3) { animation-delay: 2s; }
.pulse__ring:nth-child(4) { animation-delay: 3s; }
@keyframes pulse-wave {
  0%   { width: 70px; height: 70px; opacity: .9; }
  100% { width: 460px; height: 460px; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .pulse__ring { animation: none; opacity: .25; }
  .pulse__ring:nth-child(1){ width:160px; height:160px; }
  .pulse__ring:nth-child(2){ width:280px; height:280px; }
  .pulse__ring:nth-child(3){ width:380px; height:380px; }
  .pulse__ring:nth-child(4){ width:460px; height:460px; }
}

.hero__media {
  position: relative; z-index: 1;
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  aspect-ratio: 4 / 3; background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__media-placeholder {
  display: grid; place-items: center; height: 100%; color: rgba(255,255,255,.65);
  font-family: var(--font-display); letter-spacing: 2px; font-size: .85rem; text-align:center; padding: 20px;
}

/* =========================================================
   Bühnen-/Highlight-Element (Stage)
   ========================================================= */
.stage {
  margin-top: -50px; position: relative; z-index: 5;
}
.stage__grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px;
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 40px);
}
.stage__item { text-align: center; padding: 12px; }
.stage__icon {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 18px;
  display: grid; place-items: center; background: var(--gradient-soft);
  color: var(--color-green); font-size: 30px;
}
.stage__icon .dashicons { font-size: 32px; width: 32px; height: 32px; }
.stage__item h3 { font-size: 1.15rem; margin-bottom: 6px; }
.stage__item p { color: var(--text-muted); font-size: .98rem; margin: 0; }

/* =========================================================
   Kategorien
   ========================================================= */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.cat-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--white); box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.cat-card__media {
  aspect-ratio: 16 / 10; background: var(--gradient-main); position: relative; overflow:hidden;
}
.cat-card__media img { width: 100%; height: 100%; object-fit: cover; }
.cat-card__media-placeholder {
  position:absolute; inset:0; display:grid; place-items:center; color: rgba(255,255,255,.85);
  font-family: var(--font-display); letter-spacing:2px; font-size:.9rem;
}
.cat-card__body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.cat-card__tag {
  font-family: var(--font-display); font-size: .72rem; letter-spacing: 2px; text-transform: uppercase;
  color: var(--color-green); margin-bottom: 8px;
}
.cat-card h3 { margin-bottom: 10px; }
.cat-card p { color: var(--text-muted); flex: 1; }
.cat-card .btn { margin-top: 18px; align-self: flex-start; }

/* =========================================================
   Kontakt-Sektion
   ========================================================= */
.contact { background: var(--gradient-main); color: var(--white); }
.contact .section__head h2, .contact .section__kicker { color: var(--white); }
.contact .section__head p { color: rgba(255,255,255,.85); }
.contact__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.contact__info { display: flex; flex-direction: column; gap: 18px; }
.contact__info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact__info-item .dashicons { color: var(--color-light); margin-top: 2px; }
.contact__info-item strong { font-family: var(--font-display); display:block; font-size:.95rem; letter-spacing:.5px; }
.contact__info-item span, .contact__info-item a { color: rgba(255,255,255,.9); }
.contact__form-wrap {
  background: var(--white); color: var(--text-dark); border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px); box-shadow: var(--shadow);
}
.contact__notice {
  border: 1px dashed var(--color-green); border-radius: var(--radius-sm);
  padding: 22px; color: var(--text-muted); background: var(--color-light);
}
.contact__notice code { background: rgba(var(--color-dark-rgb),.08); padding: 2px 6px; border-radius: 5px; }

/* Contact Form 7 Styling */
.wpcf7 label { display:block; font-weight:600; margin-bottom: 14px; font-size:.95rem; color: var(--color-dark); }
.wpcf7 input[type=text], .wpcf7 input[type=email], .wpcf7 input[type=tel],
.wpcf7 input[type=url], .wpcf7 input[type=number], .wpcf7 textarea, .wpcf7 select {
  width: 100%; margin-top: 6px; padding: 12px 14px; border: 1.5px solid rgba(var(--color-dark-rgb),.18);
  border-radius: var(--radius-sm); font: inherit; background: #fff; color: var(--text-dark);
  transition: border-color .2s ease;
}
.wpcf7 input:focus, .wpcf7 textarea:focus, .wpcf7 select:focus { outline:none; border-color: var(--color-green); }
.wpcf7 textarea { min-height: 140px; resize: vertical; }
.wpcf7 .wpcf7-submit {
  background: var(--gradient-main); color:#fff; border:0; padding: 14px 30px; border-radius: 999px;
  font-family: var(--font-display); font-weight:700; cursor:pointer; letter-spacing:.5px; transition: transform .18s ease;
}
.wpcf7 .wpcf7-submit:hover { transform: translateY(-2px); }
.wpcf7-response-output { border-radius: var(--radius-sm); margin: 14px 0 0 !important; }

/* =========================================================
   Breadcrumb
   ========================================================= */
.breadcrumb { padding: 18px 0; font-size: .9rem; color: var(--text-muted); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; align-items: center; }
.breadcrumb li::after { content: '/'; margin-left: 8px; opacity: .5; }
.breadcrumb li:last-child::after { content: ''; }
.breadcrumb a { color: var(--color-green); font-weight: 600; }
.breadcrumb [aria-current="page"] { color: var(--color-dark); font-weight: 600; }

/* =========================================================
   Roboter-Übersicht (Taxonomie-Archiv)
   ========================================================= */
.page-hero {
  background: var(--gradient-main); color: #fff; padding: clamp(40px, 7vw, 80px) 0; text-align:center;
}
.page-hero h1 { color:#fff; }
.page-hero p { color: rgba(255,255,255,.9); max-width: 680px; margin-inline:auto; }

.robot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 28px; }
.robot-card {
  border-radius: var(--radius); overflow: hidden; background:#fff; box-shadow: var(--shadow-sm);
  display:flex; flex-direction:column; transition: transform .2s ease, box-shadow .2s ease;
}
.robot-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.robot-card__media { aspect-ratio: 4/3; background: var(--gradient-soft); overflow:hidden; }
.robot-card__media img { width:100%; height:100%; object-fit: cover; }
.robot-card__body { padding: 22px; display:flex; flex-direction:column; flex:1; }
.robot-card__cat { font-family: var(--font-display); font-size:.7rem; letter-spacing:2px; text-transform:uppercase; color: var(--color-green); }
.robot-card h3 { margin: 8px 0 10px; font-size: 1.25rem; }
.robot-card p { color: var(--text-muted); font-size:.95rem; flex:1; }
.robot-card .btn { margin-top: 16px; align-self:flex-start; }

/* =========================================================
   Einzelner Roboter (Slider + Datenblatt)
   ========================================================= */
.robot-single { padding: clamp(30px,5vw,60px) 0 clamp(48px,8vw,90px); }
.robot-single__grid { display:grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items:start; }
.robot-single h1 { margin-bottom: 6px; }
.robot-single__cat { font-family: var(--font-display); letter-spacing:2px; text-transform:uppercase; font-size:.78rem; color: var(--color-green); }
.robot-single__lead { font-size: 1.12rem; color: var(--text-muted); }
.robot-single__back { margin-top: 28px; display:flex; gap:12px; flex-wrap:wrap; }

/* Slider */
.slider { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--color-light); }
.slider__track { display: flex; transition: transform .45s ease; }
.slider__slide { min-width: 100%; aspect-ratio: 4/3; }
.slider__slide img { width:100%; height:100%; object-fit: cover; }
.slider__slide-placeholder { display:grid; place-items:center; height:100%; color: var(--text-muted); font-family: var(--font-display); letter-spacing:2px; }
.slider__btn {
  position:absolute; top:50%; transform: translateY(-50%); z-index:3;
  width:46px; height:46px; border-radius:50%; border:0; cursor:pointer;
  background: rgba(255,255,255,.9); color: var(--color-dark); font-size: 22px; line-height: 1;
  display:grid; place-items:center; box-shadow: var(--shadow-sm); transition: background .2s ease;
}
.slider__btn:hover { background:#fff; }
.slider__btn--prev { left: 14px; }
.slider__btn--next { right: 14px; }
.slider__dots { position:absolute; bottom: 14px; left:0; right:0; display:flex; gap:8px; justify-content:center; z-index:3; }
.slider__dot { width:10px; height:10px; border-radius:50%; border:0; background: rgba(255,255,255,.6); cursor:pointer; padding:0; }
.slider__dot.is-active { background: var(--color-green); }
.slider__thumbs { display:flex; gap:10px; margin-top: 14px; flex-wrap:wrap; }
.slider__thumb { width:74px; height:56px; border-radius:8px; overflow:hidden; border:2px solid transparent; cursor:pointer; padding:0; background:none; }
.slider__thumb.is-active { border-color: var(--color-green); }
.slider__thumb img { width:100%; height:100%; object-fit:cover; }

/* Datenblatt / Specs */
.specs { background: var(--color-light); border-radius: var(--radius); padding: clamp(22px,3.5vw,34px); }
.specs h2 { font-size: 1.3rem; margin-bottom: 18px; }
.specs__table { width:100%; border-collapse: collapse; }
.specs__table th, .specs__table td { text-align:left; padding: 12px 4px; border-bottom: 1px solid rgba(var(--color-dark-rgb),.12); font-size:.97rem; }
.specs__table th { font-family: var(--font-display); font-weight:500; color: var(--color-dark); width: 45%; letter-spacing:.3px; }
.specs__table td { color: var(--text-muted); }
.specs__table tr:last-child th, .specs__table tr:last-child td { border-bottom:0; }

.robot-content { margin-top: clamp(34px,5vw,56px); max-width: 820px; }
.robot-content h2, .robot-content h3 { margin-top: 1.4em; }

/* =========================================================
   Generische Seite / Inhalt
   ========================================================= */
.page-content { padding: clamp(34px,6vw,70px) 0; }
.entry-content { max-width: 820px; }
.entry-content img { border-radius: var(--radius-sm); margin: 1.2em 0; }
.entry-content ul, .entry-content ol { padding-left: 1.3em; }
.entry-content blockquote {
  border-left: 4px solid var(--color-green); margin: 1.5em 0; padding: .4em 1.2em;
  background: var(--color-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-muted);
}

/* =========================================================
   404
   ========================================================= */
.error-404 { text-align:center; padding: clamp(60px,12vw,140px) 0; }
.error-404 .code { font-family: var(--font-display); font-weight:900; font-size: clamp(5rem,16vw,11rem); color: var(--color-green); line-height:.9; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.82); padding: clamp(44px,6vw,72px) 0 28px; }
.site-footer a { color: rgba(255,255,255,.82); }
.site-footer a:hover { color: var(--color-light); }
.footer__grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer__brand .site-title { color:#fff; }
.footer__brand p { color: rgba(255,255,255,.65); max-width: 360px; }
.footer h4 { color:#fff; font-size: 1rem; margin-bottom: 16px; letter-spacing:1px; }
.footer ul { list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 22px;
  display:flex; flex-wrap:wrap; gap: 14px; justify-content: space-between; align-items:center; font-size:.88rem;
}
.footer__bottom nav ul { flex-direction: row; gap: 20px; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__media { max-width: 520px; }
  .pulse { right: -10%; opacity: .5; }
  .contact__grid { grid-template-columns: 1fr; }
  .robot-single__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 0 auto; width: min(86vw, 360px);
    background: #fff; box-shadow: -10px 0 40px -10px rgba(0,0,0,.3);
    transform: translateX(100%); transition: transform .3s ease; overflow-y: auto; padding: 18px;
  }
  .nav-open .main-nav { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 4px; align-items: stretch; }
  .main-nav .sub-menu {
    position: static; opacity:1; visibility:visible; transform:none; box-shadow:none;
    border:0; padding: 0 0 0 14px; display:none;
  }
  .main-nav .sub-menu.is-open { display:flex; }
  .main-nav .menu-item-has-children > a::after { float:right; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 520px) {
  .hero__actions .btn { width: 100%; justify-content: center; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}