/*
Theme Name: LUMENIQ
Theme URI: https://example.com
Author: Your Studio
Description: A premium beauty-technology WordPress theme for home-use aesthetic device brands (IPL, laser, red light, DPL, EMS). Built for WooCommerce. Minimalist, clinical-luxury design with a light-refraction signature motif.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: lumeniq
Tags: e-commerce, one-column, two-columns, custom-menu, custom-logo, translation-ready
*/

/* ==========================================================================
   DESIGN TOKENS
   ========================================================================== */
:root{
  /* Color palette */
  --color-white:      #FFFFFF;
  --color-mist:       #F5F6F8;   /* soft gray */
  --color-silver:     #C9CFD6;
  --color-sky:        #A9C7E3;   /* light blue accent */
  --color-navy:       #0B1F3A;   /* dark navy */
  --color-navy-soft:  #16294A;
  --color-ink:        #1B2430;   /* body text */
  --color-line:       #E3E6EB;

  /* Signature gradient — the "light beam" */
  --beam: linear-gradient(115deg, var(--color-sky) 0%, var(--color-white) 45%, var(--color-silver) 65%, var(--color-navy) 100%);

  /* Type */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --step-xs: 0.75rem;
  --step-sm: 0.9375rem;
  --step-base: 1.0625rem;
  --step-lg: 1.375rem;
  --step-xl: 2rem;
  --step-2xl: 2.75rem;
  --step-3xl: 3.75rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --radius: 2px;
  --container: 1240px;
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ==========================================================================
   RESET
   ========================================================================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  font-size: var(--step-base);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
ul{ list-style:none; margin:0; padding:0; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
input, textarea, select{ font-family:inherit; font-size:1rem; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 500;
  line-height:1.1;
  letter-spacing:-0.01em;
  margin: 0 0 var(--space-2);
  color: var(--color-navy);
}
h1{ font-size: clamp(2.25rem, 4vw, var(--step-3xl)); }
h2{ font-size: clamp(1.75rem, 3vw, var(--step-2xl)); }
h3{ font-size: var(--step-xl); }
p{ margin:0 0 var(--space-2); color:#4B5563; }

.container{ max-width: var(--container); margin:0 auto; padding: 0 var(--space-3); }
.eyebrow{
  display:inline-block; font-family: var(--font-mono); font-size: var(--step-xs);
  letter-spacing:.14em; text-transform:uppercase; color: var(--color-navy);
  padding-bottom: var(--space-1); position:relative;
}
.eyebrow::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:32px;
  background: var(--beam);
}
.section{ padding: var(--space-6) 0; }
.section--tint{ background: var(--color-mist); }
.text-center{ text-align:center; }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.08em; text-transform:uppercase;
  padding: 1rem 1.75rem; border-radius: var(--radius); border:1px solid transparent;
  transition: all .25s var(--ease);
}
.btn--primary{ background: var(--color-navy); color: var(--color-white); }
.btn--primary:hover{ background: var(--color-navy-soft); transform: translateY(-1px); }
.btn--ghost{ border-color: var(--color-navy); color: var(--color-navy); background:transparent; }
.btn--ghost:hover{ background: var(--color-navy); color:var(--color-white); }
.btn--light{ background: var(--color-white); color: var(--color-navy); }

/* Beam divider — signature element */
.beam-rule{ height:2px; width:100%; background: var(--beam); border:0; margin:0; }
.beam-tag{
  position:relative; display:inline-block; padding-left:1.1rem;
}
.beam-tag::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:.6rem; height:.6rem; border-radius:50%; background: var(--beam);
}

/* Grid helpers */
.grid{ display:grid; gap: var(--space-3); }
.grid-2{ grid-template-columns: repeat(2,1fr); }
.grid-3{ grid-template-columns: repeat(3,1fr); }
.grid-4{ grid-template-columns: repeat(4,1fr); }
@media (max-width: 900px){
  .grid-3, .grid-4{ grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 600px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline: 2px solid var(--color-sky); outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position: sticky; top:0; z-index: 50; background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px); border-bottom:1px solid var(--color-line);
}
.site-header__inner{ display:flex; align-items:center; justify-content:space-between; padding: 1.1rem var(--space-3); max-width: var(--container); margin:0 auto; }
.site-logo{ font-family: var(--font-display); font-size: 1.4rem; letter-spacing:.02em; color: var(--color-navy); }
.site-logo img{ max-height: 34px; }
.primary-nav ul{ display:flex; gap: 2.1rem; }
.primary-nav a{
  font-size: var(--step-sm); font-weight:500; position:relative; padding: .25rem 0;
}
.primary-nav a::after{
  content:""; position:absolute; left:0; bottom:-2px; width:0; height:1px; background: var(--color-navy);
  transition: width .25s var(--ease);
}
.primary-nav a:hover::after{ width:100%; }
.header-actions{ display:flex; align-items:center; gap:1.25rem; }
.header-actions a{ font-size: var(--step-sm); }
.menu-toggle{ display:none; background:none; border:0; }
@media (max-width: 900px){
  .primary-nav{ display:none; }
  .menu-toggle{ display:block; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{ position:relative; overflow:hidden; background: var(--color-navy); color:var(--color-white); }
.hero::before{
  content:""; position:absolute; inset:0; background: var(--beam); opacity:.16; mix-blend-mode: screen;
}
.hero__inner{
  position:relative; max-width: var(--container); margin:0 auto; padding: var(--space-6) var(--space-3);
  display:grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-4); align-items:center;
}
.hero__eyebrow{ font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.16em; text-transform:uppercase; color: var(--color-sky); }
.hero h1{ color: var(--color-white); margin: var(--space-2) 0; }
.hero p{ color: var(--color-silver); max-width: 40ch; font-size: var(--step-lg); }
.hero__ctas{ display:flex; gap:1rem; margin-top: var(--space-3); flex-wrap:wrap; }
.hero__media{ position:relative; aspect-ratio: 4/5; border-radius: var(--radius); overflow:hidden; }
.hero__media img{ width:100%; height:100%; object-fit:cover; }
@media (max-width: 900px){
  .hero__inner{ grid-template-columns:1fr; }
}

/* ==========================================================================
   CATEGORY / PROBLEM-FIRST NAV
   ========================================================================== */
.category-card{
  position:relative; padding: var(--space-4) var(--space-3); background: var(--color-mist);
  border-radius: var(--radius); overflow:hidden; transition: transform .3s var(--ease);
}
.category-card:hover{ transform: translateY(-4px); }
.category-card::before{ content:""; position:absolute; left:0; top:0; height:3px; width:100%; background: var(--beam); }
.category-card h3{ margin-bottom:.4rem; }
.category-card a{ font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.08em; text-transform:uppercase; color:var(--color-navy); }

/* ==========================================================================
   PRODUCT CARDS (best sellers + woocommerce loop)
   ========================================================================== */
.product-card, ul.products li.product{
  border:1px solid var(--color-line) !important; border-radius: var(--radius); padding: var(--space-2);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease); background:var(--color-white);
}
.product-card:hover, ul.products li.product:hover{
  box-shadow: 0 18px 40px rgba(11,31,58,.08); transform: translateY(-3px);
}
.product-card__image, ul.products li.product img{
  aspect-ratio: 1/1; object-fit:cover; width:100%; border-radius: 1px; margin-bottom: var(--space-2) !important;
}
.product-card__name{ font-family: var(--font-display); font-size: 1.15rem; margin-bottom:.25rem; }
.product-card__price, ul.products li.product .price{ font-family: var(--font-mono); color: var(--color-navy); font-size: var(--step-sm); }
.product-card__badges{ display:flex; gap:.4rem; margin-bottom:.5rem; }
.badge{ font-family: var(--font-mono); font-size: 10px; letter-spacing:.06em; text-transform:uppercase; padding:.2rem .5rem; background: var(--color-mist); color:var(--color-navy); border-radius:20px; }

/* ==========================================================================
   TECHNOLOGY SECTION
   ========================================================================== */
.tech-row{ display:grid; grid-template-columns: .45fr .55fr; gap: var(--space-4); align-items:center; padding: var(--space-4) 0; border-bottom:1px solid var(--color-line); }
.tech-row:last-child{ border-bottom:0; }
.tech-row__figure{ aspect-ratio: 4/3; background: var(--color-mist); border-radius: var(--radius); position:relative; overflow:hidden; }
.tech-row__figure::after{ content:""; position:absolute; inset:0; background: var(--beam); opacity:.25; }
.tech-row__index{ font-family: var(--font-mono); font-size: var(--step-xs); color: var(--color-sky); background:var(--color-navy); display:inline-block; padding:.2rem .6rem; border-radius:20px; margin-bottom:.6rem; }
@media (max-width: 780px){ .tech-row{ grid-template-columns:1fr; } .tech-row__figure{ order:-1; } }

/* ==========================================================================
   BEFORE / AFTER
   ========================================================================== */
.ba-slider{ position:relative; aspect-ratio: 4/3; border-radius: var(--radius); overflow:hidden; }
.ba-slider img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.ba-slider .ba-after{ clip-path: inset(0 0 0 50%); }
.ba-slider input[type=range]{
  position:absolute; inset:0; width:100%; height:100%; -webkit-appearance:none; background:transparent; margin:0; z-index:5;
}
.ba-handle{ position:absolute; top:0; bottom:0; left:50%; width:2px; background: var(--color-white); pointer-events:none; }
.ba-labels{ display:flex; justify-content:space-between; margin-top: var(--space-1); font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.08em; text-transform:uppercase; color:#6B7280; }

/* ==========================================================================
   REVIEWS
   ========================================================================== */
.review-card{ background: var(--color-white); border:1px solid var(--color-line); border-radius: var(--radius); padding: var(--space-3); }
.review-card__stars{ color: var(--color-navy); font-size: var(--step-sm); letter-spacing:.15em; margin-bottom:.5rem; }
.review-card__meta{ font-family: var(--font-mono); font-size: var(--step-xs); color:#6B7280; text-transform:uppercase; letter-spacing:.05em; margin-top:.75rem; }

/* ==========================================================================
   TRUST BADGES
   ========================================================================== */
.trust-strip{ display:flex; flex-wrap:wrap; gap: var(--space-4); align-items:center; justify-content:center; padding: var(--space-3) 0; }
.trust-strip__item{ display:flex; align-items:center; gap:.6rem; font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.06em; text-transform:uppercase; color: var(--color-navy); }

/* ==========================================================================
   BLOG
   ========================================================================== */
.post-card{ display:block; }
.post-card__image{ aspect-ratio: 3/2; overflow:hidden; border-radius: var(--radius); margin-bottom: var(--space-2); }
.post-card__image img{ width:100%; height:100%; object-fit:cover; transition: transform .4s var(--ease); }
.post-card:hover .post-card__image img{ transform: scale(1.04); }
.post-card__cat{ font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.08em; text-transform:uppercase; color: var(--color-sky); background:var(--color-navy); padding:.2rem .6rem; border-radius:20px; display:inline-block; margin-bottom:.6rem; }
.entry-content{ max-width: 72ch; margin:0 auto; font-size: var(--step-lg); line-height:1.75; }
.entry-content h2{ margin-top: var(--space-4); }
.entry-content img{ border-radius: var(--radius); margin: var(--space-2) 0; }

/* ==========================================================================
   PRODUCT SINGLE (WooCommerce)
   ========================================================================== */
.product-hero{ display:grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.product-hero__gallery img{ border-radius: var(--radius); margin-bottom: var(--space-1); }
.product-hero__meta .benefit-list{ display:grid; grid-template-columns: 1fr 1fr; gap:.6rem; margin: var(--space-2) 0 var(--space-3); }
.benefit-list li{ font-size: var(--step-sm); padding-left:1.1rem; position:relative; }
.benefit-list li::before{ content:""; position:absolute; left:0; top:.5em; width:.5rem; height:.5rem; background:var(--beam); border-radius:50%; }
.spec-table{ width:100%; border-collapse: collapse; font-size: var(--step-sm); }
.spec-table th, .spec-table td{ text-align:left; padding: .7rem 0; border-bottom:1px solid var(--color-line); }
.spec-table th{ font-weight:500; color:#6B7280; width:40%; }
.faq-item{ border-bottom:1px solid var(--color-line); padding: var(--space-2) 0; }
.faq-item summary{ cursor:pointer; font-family: var(--font-display); font-size: 1.05rem; color: var(--color-navy); list-style:none; display:flex; justify-content:space-between; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-family:var(--font-mono); }
.faq-item[open] summary::after{ content:"–"; }
@media (max-width: 780px){ .product-hero{ grid-template-columns:1fr; } }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background: var(--color-navy); color: var(--color-silver); padding: var(--space-5) 0 var(--space-3); }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-3); }
.footer-grid h4{ color: var(--color-white); font-family: var(--font-mono); font-size: var(--step-xs); letter-spacing:.1em; text-transform:uppercase; margin-bottom:1rem; }
.footer-grid a{ display:block; font-size: var(--step-sm); color: var(--color-silver); padding: .3rem 0; }
.footer-grid a:hover{ color: var(--color-white); }
.footer-bottom{ margin-top: var(--space-4); padding-top: var(--space-2); border-top:1px solid rgba(255,255,255,.12); display:flex; justify-content:space-between; font-family: var(--font-mono); font-size: var(--step-xs); color:#8A93A6; flex-wrap:wrap; gap:1rem; }
@media (max-width: 780px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }