/*
Theme Name: Catechesis Online
Theme URI: https://catechesisonline.com
Author: Duy Tân & ChatGPT
Description: Theme học Giáo lý Công giáo online – đơn giản, thánh thiện, miễn phí hoàn toàn, không cần tài khoản.
Version: 1.0
Text Domain: catechesis-online
*/

/* Root variables – sẽ đổi theo mùa phụng vụ qua data-season */
:root {
  --font-main: "Nunito", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --color-bg: #f9fafb;
  --color-bg-soft: #ffffff;
  --color-text: #1f2933;
  --color-muted: #6b7280;
  --color-accent: #2f855a;
  --color-accent-soft: #e6fffa;
  --color-border: #e5e7eb;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-soft: 0 14px 40px rgba(15, 23, 42, 0.12);
}

/* Ordinary Time – xanh lá */
:root[data-season="ordinary"] {
  --color-accent: #2f855a;
  --color-bg: #f0fff4;
  --color-bg-soft: #ffffff;
}

/* Mùa Vọng & Mùa Chay – tím */
:root[data-season="advent"],
:root[data-season="lent"] {
  --color-accent: #6b46c1;
  --color-bg: #f8f5ff;
  --color-bg-soft: #ffffff;
}

/* Giáng Sinh & Phục Sinh – trắng/vàng */
:root[data-season="christmas"],
:root[data-season="easter"] {
  --color-accent: #d69e2e;
  --color-bg: #fdfcf7;
  --color-bg-soft: #ffffff;
}

/* Ngày đỏ đặc biệt (Lá, Thứ Sáu Tuần Thánh, Hiện Xuống) */
:root[data-season="red_day"] {
  --color-accent: #c53030;
  --color-bg: #fff5f5;
  --color-bg-soft: #ffffff;
}

/* Reset & global */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at top, rgba(255,255,255,0.7), var(--color-bg));
  color: var(--color-text);
  line-height: 1.6;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  background: linear-gradient(120deg, var(--color-accent), rgba(15,23,42,0.9));
  color: #f9fafb;
  padding: 0.75rem 0;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.45);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-title {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
}

.site-tagline {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  color: rgba(249, 250, 251, 0.9);
}

/* Navigation */
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-weight: 600;
  font-size: 0.96rem;
}

.primary-menu > li > a {
  color: #e5e7eb;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.primary-menu > li > a:hover {
  background: rgba(15, 23, 42, 0.3);
  color: #ffffff;
}

.menu-item-has-children {
  position: relative;
}

.menu-item-has-children > a::after {
  content: "▾";
  font-size: 0.7rem;
  margin-left: 0.3rem;
}

.sub-menu {
  position: absolute;
  top: 120%;
  left: 0;
  min-width: 260px;
  background: rgba(15, 23, 42, 0.98);
  border-radius: 18px;
  padding: 0.5rem;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.8);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.15s ease-out;
}

.menu-item-has-children:hover > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sub-menu li a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  color: #e5e7eb;
  font-weight: 500;
  font-size: 0.9rem;
}

.sub-menu li a:hover {
  background: rgba(148, 163, 184, 0.45);
  color: #ffffff;
}

/* Mobile nav */
.nav-toggle {
  display: none;
  border: 0;
  background: rgba(15, 23, 42, 0.7);
  color: #f9fafb;
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
}

/* Hero */
.cate-hero {
  padding: 3.5rem 0 2.5rem;
}

.cate-hero-inner {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  align-items: center;
}

.cate-hero-title {
  font-size: clamp(2.1rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.cate-hero-subtitle {
  font-size: 1rem;
  max-width: 32rem;
  color: var(--color-muted);
}

.cate-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0;
}

.cate-badge {
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.4);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(18px);
}

.cate-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.cate-button-primary,
.cate-button-ghost {
  border-radius: 999px;
  padding: 0.6rem 1.4rem;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.cate-button-primary {
  background: var(--color-accent);
  color: #fdfdfd;
  box-shadow: var(--shadow-soft);
}

.cate-button-primary:hover {
  filter: brightness(1.04);
}

.cate-button-ghost {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--color-text);
}

.cate-button-ghost:hover {
  background: rgba(255, 255, 255, 0.8);
}

/* Card grid */
.section-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 0.96rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.cate-card {
  background: var(--color-bg-soft);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.3rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 10px 28px rgba(15,23,42,0.08);
}

.cate-card h3 {
  margin-top: 0;
  font-size: 1rem;
  font-weight: 700;
}

.cate-card p {
  font-size: 0.92rem;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

/* Quiz */
.cate-quiz {
  margin: 2rem 0;
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 14px 40px rgba(15,23,42,0.08);
}

.cate-quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.cate-quiz-start {
  border-radius: 999px;
  border: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 0.5rem 1.2rem;
  font-weight: 700;
  cursor: pointer;
}

.cate-quiz-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.cate-quiz-question {
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.cate-quiz-options {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.cate-quiz-option {
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  padding: 0.45rem 0.95rem;
  background: #ffffff;
  cursor: pointer;
  font-size: 0.92rem;
  text-align: left;
}

.cate-quiz-option.is-correct {
  border-color: #16a34a;
  background: #ecfdf3;
}

.cate-quiz-option.is-wrong {
  border-color: #dc2626;
  background: #fef2f2;
}

.cate-quiz-explanation {
  font-size: 0.9rem;
  color: var(--color-muted);
  border-left: 3px solid var(--color-accent);
  padding-left: 0.75rem;
  margin-bottom: 0.75rem;
}

.cate-quiz-next {
  border-radius: 999px;
  border: 0;
  background: rgba(15,23,42,0.9);
  color: #f9fafb;
  padding: 0.45rem 1.1rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.cate-quiz-score {
  font-weight: 700;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 0 2rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
}

/* Content */
main {
  padding-bottom: 2.5rem;
}

.main-content {
  padding-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
  }

  .primary-menu {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.75rem;
  }

  .primary-menu.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .cate-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}