/*
Theme Name: D4B Certification Portal
Theme URI: https://digital4business.eu/
Author: Project team
Description: Student certification selection and registration portal with WooCommerce catalogue support.
Version: 1.2.0
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 8.0
Text Domain: d4b-certifications
License: GPL-2.0-or-later
*/

:root {
  --d4b-navy: #142a3e;
  --d4b-purple: #7a2982;
  --d4b-magenta: #bc0e71;
  --d4b-teal: #00495a;
  --d4b-aqua: #3ca0a4;
  --d4b-green: #128a3e;
  --d4b-orange: #e5a22e;
  --d4b-pale: #f0f3f5;
  --d4b-blue-pale: #e8eef7;
  --d4b-ink-soft: #435565;
  --d4b-white: #fff;
  --d4b-radius: 0;
  --d4b-shadow: 0 18px 50px rgba(20, 42, 62, .10);
  --d4b-max: 1180px;
  --d4b-logo-width: 220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--d4b-navy); background: #fff; font-family: "Work Sans", Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 1.62; }
a { color: var(--d4b-purple); }
a:hover { color: var(--d4b-magenta); }
img { max-width: 100%; height: auto; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.screen-reader-text:focus { position: fixed; z-index: 100000; top: 8px; left: 8px; width: auto; height: auto; padding: .7rem 1rem; clip: auto; background: #fff; }
.d4b-wrap { width: min(calc(100% - 2rem), var(--d4b-max)); margin-inline: auto; }
.d4b-section { padding: clamp(3.5rem, 7vw, 6.5rem) 0; }
.d4b-section--pale { background: var(--d4b-pale); }
.d4b-kicker { margin: 0 0 .65rem; color: var(--d4b-magenta); font-size: .82rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
h1,h2,h3,h4 { margin-top: 0; font-family: Blinker, "Work Sans", Arial, sans-serif; font-weight: 700; line-height: 1.08; }
h1 { font-size: clamp(2.6rem, 6vw, 5.5rem); letter-spacing: -.045em; }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); letter-spacing: -.03em; }
h3 { font-size: 1.35rem; }
.d4b-lead { max-width: 740px; color: var(--d4b-ink-soft); font-size: clamp(1.05rem, 1.8vw, 1.25rem); }
.d4b-button, button.d4b-button, .woocommerce a.button.d4b-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .75rem 1.15rem; border: 2px solid var(--d4b-purple); border-radius: 0; background: var(--d4b-purple); color: #fff; font: inherit; font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.d4b-button:hover, .d4b-button:focus-visible { color: #fff; background: var(--d4b-magenta); border-color: var(--d4b-magenta); transform: translateY(-2px); }
.d4b-button--ghost { background: transparent; color: var(--d4b-purple); }
.d4b-button--ghost:hover, .d4b-button--ghost:focus-visible { color: #fff; }

.d4b-site-header { position: sticky; z-index: 50; top: 0; border-bottom: 1px solid rgba(20,42,62,.09); background: rgba(255,255,255,.96); backdrop-filter: blur(14px); }
.d4b-header-inner { display: flex; min-height: 78px; align-items: center; gap: 1.5rem; }
.d4b-brand { display: inline-flex; align-items: center; color: var(--d4b-navy); font-family: Blinker, sans-serif; font-size: 1.18rem; font-weight: 800; text-decoration: none; }
.d4b-brand img { display: block; width: min(var(--d4b-logo-width), 42vw); max-width: none; height: auto; object-fit: contain; object-position: left center; }
.d4b-nav { margin-left: auto; }
.d4b-nav ul { display: flex; align-items: center; gap: 1.3rem; margin: 0; padding: 0; list-style: none; }
.d4b-nav a { color: var(--d4b-navy); font-weight: 700; text-decoration: none; }
.d4b-nav a:hover, .d4b-nav a:focus-visible { color: var(--d4b-magenta); }
.d4b-menu-toggle { display: none; margin-left: auto; border: 0; background: transparent; color: var(--d4b-navy); font-size: 1rem; font-weight: 800; }

.d4b-hero { position: relative; overflow: hidden; padding: clamp(3.2rem, 8vw, 7rem) 0 4rem; background: var(--d4b-navy); color: #fff; }
.d4b-hero::after { content: ""; position: absolute; right: -12vw; bottom: -35%; width: 48vw; height: 54vw; background: rgba(188,14,113,.25); clip-path: polygon(28% 0, 100% 0, 72% 100%, 0 100%); transform: rotate(-7deg); }
.d4b-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: clamp(2rem, 6vw, 5rem); align-items: end; }
.d4b-hero h1 { max-width: 820px; margin-bottom: 1.2rem; }
.d4b-hero .d4b-lead { color: #dce6ed; }
.d4b-hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.6rem; }
.d4b-hero-note { padding: 1.5rem; border: 1px solid rgba(255,255,255,.22); border-radius: var(--d4b-radius); background: rgba(255,255,255,.08); }
.d4b-hero-note strong { display: block; margin-bottom: .4rem; font-size: 1.15rem; }
.d4b-hero-side { display: grid; gap: 1.25rem; align-self: stretch; align-content: center; }
.d4b-hero-mark { display: block; width: min(100%, 350px); max-height: 300px; margin-inline: auto; object-fit: contain; }

.d4b-section-head { display: flex; gap: 2rem; align-items: end; justify-content: space-between; margin-bottom: 2rem; }
.d4b-module-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.d4b-module { min-height: 170px; padding: 1.4rem; border: 2px solid transparent; border-radius: var(--d4b-radius); background: #fff; box-shadow: var(--d4b-shadow); color: var(--d4b-navy); text-align: left; cursor: pointer; }
.d4b-module:hover, .d4b-module:focus-visible, .d4b-module[aria-pressed="true"] { border-color: var(--d4b-purple); transform: translateY(-3px); }
.d4b-module span { display: block; margin-bottom: .7rem; color: var(--d4b-magenta); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.d4b-module strong { display: block; font-family: Blinker, sans-serif; font-size: 1.35rem; line-height: 1.15; }
.d4b-options { margin-top: 2.5rem; }
.d4b-options[hidden] { display: none; }
.d4b-cert-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.d4b-cert-card { display: flex; flex-direction: column; min-height: 260px; padding: 1.5rem; border: 1px solid #dce3e8; border-radius: var(--d4b-radius); background: #fff; box-shadow: 0 10px 34px rgba(20,42,62,.07); }
.d4b-cert-card__provider { margin: 0 0 .6rem; color: var(--d4b-purple); font-size: .8rem; font-weight: 800; text-transform: uppercase; }
.d4b-cert-card h3 { margin-bottom: .8rem; }
.d4b-cert-card p { color: var(--d4b-ink-soft); }
.d4b-cert-card__actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: auto; padding-top: 1rem; }

.d4b-timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; counter-reset: phase; }
.d4b-phase { position: relative; padding: 1.6rem; border-radius: var(--d4b-radius); counter-increment: phase; }
.d4b-phase::before { content: "0" counter(phase); display: block; margin-bottom: .7rem; font-weight: 850; }
.d4b-phase:nth-child(1) { border: 2px solid var(--d4b-aqua); background: #dff1ef; }
.d4b-phase:nth-child(2) { border: 2px solid #4276b9; background: var(--d4b-blue-pale); }
.d4b-phase:nth-child(3) { border: 2px solid var(--d4b-orange); background: #fff4d9; }
.d4b-phase__duration { display: block; font-family: Blinker, sans-serif; font-size: 2rem; font-weight: 850; }
.d4b-phase__dates { font-weight: 750; }

.d4b-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.d4b-step { padding: 1.5rem; border-top: 4px solid var(--d4b-purple); background: #fff; }
.d4b-step__number { color: var(--d4b-magenta); font-size: .85rem; font-weight: 850; }
.d4b-partner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.d4b-partner-mark { display: flex; min-height: 160px; align-items: center; justify-content: center; padding: 2rem; border: 1px dashed #a9b5bd; border-radius: var(--d4b-radius); color: var(--d4b-ink-soft); text-align: center; }

.d4b-main { min-height: 60vh; padding: 3.5rem 0; }
.d4b-content { max-width: 860px; }
.d4b-content h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
.d4b-notice { margin: 1rem 0; padding: 1rem 1.2rem; border-left: 5px solid var(--d4b-purple); background: var(--d4b-pale); }
.d4b-notice--success { border-color: var(--d4b-green); }
.d4b-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; padding: clamp(1.2rem, 3vw, 2rem); border-radius: var(--d4b-radius); background: var(--d4b-pale); }
.d4b-field { display: flex; flex-direction: column; gap: .35rem; }
.d4b-field--full { grid-column: 1 / -1; }
.d4b-field label { font-weight: 750; }
.d4b-field input, .d4b-field select, .d4b-field textarea { width: 100%; min-height: 48px; padding: .7rem .8rem; border: 1px solid #8796a2; border-radius: 0; background: #fff; color: var(--d4b-navy); font: inherit; }
.d4b-field input:focus, .d4b-field select:focus, .d4b-field textarea:focus { outline: 3px solid rgba(122,41,130,.22); border-color: var(--d4b-purple); }
.d4b-check { display: flex; gap: .7rem; align-items: flex-start; }
.d4b-check input { flex: 0 0 auto; width: 20px; min-height: 20px; margin-top: .25rem; }
.d4b-hp { position: absolute; left: -9999px; }

.d4b-site-footer { padding: 3rem 0; background: var(--d4b-navy); color: #dce6ed; }
.d4b-footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; }
.d4b-site-footer a { color: #fff; }
.d4b-footer-logos { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.d4b-footer-logos img { max-height: 52px; width: auto; padding: .4rem; background: #fff; border-radius: 0; }

.woocommerce .price, .woocommerce div.product p.price, .woocommerce a.added_to_cart, .woocommerce .cart, .woocommerce .product_meta .sku_wrapper { display: none !important; }
.woocommerce ul.products li.product { padding: 1.2rem; border: 1px solid #dce3e8; border-radius: var(--d4b-radius); }
.d4b-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 1.5rem 0; border: 1px solid #cbd4da; background: #cbd4da; }
.d4b-fact { padding: 1rem; background: #fff; }
.d4b-fact strong { display: block; margin-bottom: .2rem; color: var(--d4b-purple); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.d4b-source { padding: 1rem; border-left: 5px solid var(--d4b-teal); background: var(--d4b-pale); }
.d4b-source a { font-weight: 750; }

@media (max-width: 900px) {
  .d4b-module-grid, .d4b-timeline { grid-template-columns: repeat(2, 1fr); }
  .d4b-hero-grid, .d4b-partner { grid-template-columns: 1fr; }
  .d4b-phase:last-child { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .d4b-menu-toggle { display: block; }
  .d4b-nav { display: none; position: absolute; top: 78px; left: 0; width: 100%; padding: 1rem; background: #fff; box-shadow: var(--d4b-shadow); }
  .d4b-nav.is-open { display: block; }
  .d4b-nav ul { align-items: stretch; flex-direction: column; }
  .d4b-module-grid, .d4b-cert-grid, .d4b-timeline, .d4b-steps, .d4b-form, .d4b-footer-grid { grid-template-columns: 1fr; }
  .d4b-facts { grid-template-columns: 1fr; }
  .d4b-phase:last-child, .d4b-field--full { grid-column: auto; }
  .d4b-section-head { display: block; }
  .d4b-hero-mark { width: min(72vw, 280px); max-height: 230px; }
}