/* ---------------
General Styles
--------------- */
:root {
  /* ----
  Colors
  ---- */
  --color-bg: #fff;
  --color-text: #222;
  --color-header-bg: #f8f8f8;
  --color-footer-bg: #f2f2f2;
  --color-card-bg: #fff;
  --color-primary: #3f51b5;
  --color-primary-hover: #303f9f;
  --color-accent: #ff5722;
  --color-accent-hover: #e64a19;

  /* --------
  Typography
  --------- */
  --font-body: 'Open Sans', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --line-height: 1.6;

  /* -----
  Buttons & Transitions
  ------ */
  --btn-padding: 0.75rem 1.25rem;
  --btn-radius: 4px;
  --transition-fast: 0.2s ease-in-out;
}

/* --
Dark Mode
--- */
[data-theme="dark"] {
  --color-bg: #121212;
  --color-text: #eee;
  --color-header-bg: #1f1f1f;
  --color-footer-bg: #1f1f1f;
  --color-card-bg: #1f1f1f;
  --color-primary: #bb86fc;
  --color-primary-hover: #8853ff;
  --color-accent: #ff4081;
  --color-accent-hover: #f50057;
}

/* ---
Reset & Base
--- */
*,
*::before,
*::after {
  box-sizing: border-box; 
  margin: 0;
  padding: 0; 
}

html {
  font-size: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: var(--line-height);
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

a {
  color: var(--color-primary); 
  text-decoration: none;
  transition: color var(--transition-fast); 
}

a:hover,
a:focus { 
  color: var(--color-primary-hover);
}

h1, h2, h3, h4, h5, h6 { 
  font-family: var(--font-heading); 
  margin-bottom: 0.5em; 
  color: var(--color-text);
}

ul, ol { 
  list-style: none; 
}

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

/* -----
Utility
----- */
.container { 
  max-width: 1200px;
   margin: 0 auto;
    padding: 0 1rem; 
  }

.btn {
  display: inline-block;
  padding: var(--btn-padding);
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--btn-radius);
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn:hover,
.btn:focus { 
  background-color: var(--color-primary-hover);
}

.truncate { 
  white-space: nowrap; 
  overflow: hidden; 
  text-overflow: ellipsis; 
}

/* ---- 
Header & Navigation 
---- */
.header {
  background-color: var(--color-header-bg);
  padding: 0.75rem 1rem;
  position: fixed; 
  top: 0; 
  width: 100%;
  box-shadow: 0 2px 4px rgb(0 0 0 / 10%);
  z-index: 1000;
  transition: background-color var(--transition-fast);
}

.header__inner { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
}

.header__logo .logo {
  font-family: var(--font-heading); 
  font-size: 1.75rem; 
  color: var(--color-primary); 
  transition: color var(--transition-fast);
}

.header__logo .logo:hover, 
.header__logo .logo:focus { 
  color: var(--color-accent); 
}

.nav { 
  display: flex; 
  align-items: center;
  font-size: x-large;
}

.nav__list {
  display: flex; 
  gap: 1.5em; 
}

.nav__list.active { 
  display: flex; 
}

.nav__link { 
  font-weight: 500; 
  color: var(--color-text); 
  transition: color var(--transition-fast); 
}

.nav__link:hover, 
.nav__link:focus { 
  color: var(--color-accent); 
}

.header__toggle { 
  display: none; 
  flex-direction: column; 
  gap: 0.25rem; 
  background: none;
  border: none; 
  cursor: pointer; 
}

.header__toggle span { 
  width: 25px; 
  height: 3px; 
  background-color: var(--color-text); 
  transition: background-color var(--transition-fast); 
}

[data-theme="dark"] .header { 
  background-color: var(--color-header-bg); 
}

[data-theme="dark"] .header__toggle span { 
  background-color: var(--color-accent); 
}

.theme-toggle { 
  margin-left: 7rem;
  background: none; 
  border: none; 
  cursor: pointer; 
  font-size: 2rem; 
  color: var(--color-text);
  transition: color var(--transition-fast);
}

[data-theme="dark"] .theme-toggle { 
  color: var(--color-accent); 
}

@media (width <= 768px) {
  .nav__list {
    position: absolute; 
    top: 100%;
    right: 1rem; 
    flex-direction: column; 
    background-color: var(--color-header-bg); 
    padding: 1rem; 
    border-radius: 0 0 var(--btn-radius) var(--btn-radius); 
    display: none; 
    box-shadow: 0 4px 8px rgb(0 0 0 / 10%);
    gap: 0.5rem !important;
  }  

  .nav__list.active { 
    display: flex; 
  }

  .header__toggle { 
    display: flex;
  }
}

/* --
Hero 
--- */
.hero { 
  position: relative; 
  width: 100%; 
  height: 60vh;
  min-height: 400px;
  background: url('/static/images/hero-bg.jpg') center/cover no-repeat; 
  display: flex; 
  align-items: center; 
  justify-content: center;
  color: #fff; 
  text-align: center; 
}

.hero::before { 
  content: '';
  position: absolute; 
  inset: 0; 
  background: rgb(0 0 0 / 40%);
}

.hero__inner { 
  position: relative; 
  z-index: 1; 
  max-width: 800px; 
  padding: 0 1rem;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 1rem);
  margin-bottom: 1rem;
  line-height: 1.2;
  color: #fff !important;
}

.hero__subtitle {
  font-size: clamp(1.3rem, 8vw, 1.5rem);
  margin-bottom: 0;
  font-weight: 300;
}

.hero .btn {
  padding: 0.75rem 2rem;
  background-color: var(--color-accent);
  transition: background-color var(--transition-fast);
}

.hero .btn:hover,
.hero .btn:focus { 
  background-color: var(--color-accent-hover);
}

/* --
Grid & Cards 
-- */
.posts-grid { 
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2em;
  padding: 2rem 0;
}

.post-card {
  background-color: var(--color-card-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 2px 6px rgb(0 0 0 / 10%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast),
             box-shadow var(--transition-fast);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgb(0 0 0 / 15%);
}

.post-card__image-link, 
.post-card__image {
  display: block;
}

.post-card__image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.post-card:hover .post-card__image img {
  transform: scale(1.05);
}

.post-card__content {
  padding: 1rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.post-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  color: var(--color-text);
}

.post-card__excerpt {
  flex-grow: 1;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.post-card__meta {
  font-size: 0.85rem;
  color: #777;
  margin-bottom: 0.5rem;
}

.post-card__actions {
  margin-top: auto;
}

/* --
Post Detail
-- */
.post-detail {
  padding: 6rem 1rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.post-detail__header {
  margin-bottom: 1.5rem;
}

.post-detail__title {
  font-size: 2rem;
  margin: 0 0 0.5rem;
}

.post-detail__meta {
  font-size: 0.9rem;
  color: #666;
}

.post-detail__image img {
  margin: 1rem 0;
  border-radius:var(--btn-radius);
}

.post-detail__content {
  line-height:var(--line-height);
}

/* ------
Comments
------ */
.comments-section {
  margin: 2rem auto;
  max-width: 800px;
  padding: 0 1rem;
}

.comments-section__title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.comments-list {
  list-style: none;
  padding: 0;
}

.comment-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-header-bg);
  border-radius: var(--btn-radius);
  padding: 1rem;
  margin-bottom: 1rem;
  transition: background-color var(--transition-fast),
   border-color var(--transition-fast);
}

.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.comment-body {
  font-size: 0.95rem;
  color: var(--color-text);
}

.comment-actions a {
  margin-left: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.comment-actions a:hover {
  color: var(--color-accent);
}

[data-theme="dark"] .comment-item {
  border-color: var(--color-primary);
}

/* ---
Forms & Buttons
--- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.form-actions {
  margin-top: 1rem;
}

.comment-form textarea,
.post-form textarea,
.contact-form textarea,
.post-form input,
.contact-form input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-header-bg);
  border-radius: var(--btn-radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  transition: border-color var(--transition-fast);
}

.comment-form textarea:focus,
.post-form textarea:focus,
.contact-form textarea:focus,
.post-form input:focus,
.contact-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* --------
Pagination
--------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.prev-page,
.next-page,
.page-info { 
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--btn-radius);
  text-decoration: none;
}

.prev-page:hover,
.next-page:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.page-info {
  background-color: var(--color-primary);
  color: #fff;
  pointer-events: none;
}

/* ----
Filter Header 
---- */
.filter-header {
  display: flex;
  align-items: center; 
  justify-content: space-between;
  margin: 2rem 0;
}

.filter-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.filter-header .btn {
  margin: 0;
}

/* -----
Profile
------ */
.profile-section {
  max-width: 800px;
  margin: 6rem auto 2rem;
  padding: 0 1rem;
}

.profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.profile-username {
  font-size: 2rem;
  margin: 0;
}

.profile-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.profile-detail-item dt {
  font-weight: 600;
}

.profile-detail-item dd {
  margin-left: 0;
}

/* --
Auth
--- */
.auth-section {
  max-width: 400px;
  margin: 6rem auto;
  padding: 2rem;
  background-color: var(--color-card-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 2px 8px rgb(0 0 0 / 10%);
}

.auth-section h1 {
  margin-bottom: 1rem;
  font-family: var(--font-heading);
  text-align: center;
}

.auth-form {
  display: grid;
  gap: 1rem;
}

.auth-switch {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
}

.auth-switch a {
  color: var(--color-primary);
  font-weight: 600;
}

.auth-switch a:hover {
  color: var(--color-accent);
}

/* ---
About & Contact
--- */
.about-container,
.contact-container {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-position: center;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.about-container::before,
.contact-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 40%);
}

.about-text,
.contact-text {
  position: relative;
  z-index: 1;
  max-width: 800px;
  background-color: var(--color-card-bg);
  color: var(--color-text);
  padding: 2rem;
  border-radius: var(--btn-radius);
  box-shadow: 0 4px 12px rgb(0 0 0 / 10%);
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

.about-container {
  background-image: url('/static/blog/images/about_background.jpg');
}

.contact-container {
  background-image: url('/static/blog/images/contact_background.jpg');
}

.about-text h2,
.contact-text h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form button {
  justify-self: start;
}

/* ----
Contact
---- */
.contact-section {
  max-width: 700px;
  margin: 4rem auto;
  padding: 2.5rem 2rem;
  background-color: var(--color-card-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 8px 24px rgb(0 0 0 / 10%);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.contact-section:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgb(0 0 0 / 15%);
}

.contact-section h1,
.contact-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  text-align: center;
}

.contact-intro {
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 2rem;
  text-align: center;
}

.contact-form .form-group {
  display: flex;
  flex-direction: column;
}

.contact-form .form-group label {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-header-bg);
  border-radius: var(--btn-radius);
  padding: 0.85rem 1rem;
  font-size: 1rem;
  transition: border-color var(--transition-fast),
              background var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--color-accent);
  background-color: rgb(255 255 255 / 97%);
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-form .errorlist {
  margin-top: 0.25rem;
  list-style: none;
  color: var(--color-accent);
  font-size: 0.875rem;
}

.contact-section .btn,
.contact-section .btn-primary {
  justify-self: center;
  width: auto;
  padding: 0.85rem 2rem;
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--btn-radius);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
}

.contact-section .btn:hover,
.contact-section .btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

@media (width <= 600px) {
  .contact-section {
    margin: 1.5rem 0.75rem;
    padding: 1.5rem;
    box-shadow: none;
    transform: none;
  }

  .contact-section h1,
  .contact-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  .contact-intro {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
  }

  .contact-form .form-group input,
  .contact-form .form-group textarea {
    padding: 1rem;
    font-size: 1rem;
  }

  .contact-form textarea {
    min-height: 120px;
  }

  .contact-section .btn,
  .contact-section .btn-primary {
    width: 100%;
    margin: 1rem 0 0;
    font-size: 1rem;
    padding: 0.85rem;
  }
}


/* ----
Footer
---- */
.site-footer { 
  background-color: var(--color-footer-bg);
  color: var(--color-text);
  padding: 1.5rem 1rem;
  text-align: center;
  border-top: 1px solid var(--color-header-bg);
  transition: background-color var(--transition-fast),
  color var(--transition-fast); 
}

.site-footer
.footer-inner { 
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.site-footer p {
  margin: 0; 
  font-size: 0.9rem;
}

.social-list {
  display: flex;
  gap: 1rem;
}

.social-list a {
  font-size: 1.25rem;
  color: var(--color-text);
  transition: color var(--transition-fast); 
}

.social-list a:hover, 
.social-list a:focus {
  color: var(--color-accent); 
}

@media (width <= 768px) {
  .header__toggle {
    margin-left: 2rem;
    margin-right: 0.5rem;
  }

  .theme-toggle {
    margin-left: 1rem;
  }
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-header-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 2px 8px rgb(0 0 0 / 10%);
  list-style: none;
  padding: 0.5rem 0;
  z-index: 1000;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text);
}

.dropdown-menu a:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.dropdown-menu,
.dropdown-menu .dropdown-item {
  font-size: 0.85rem;
  white-space: nowrap;
}


@media (width <= 768px) {
  .header__inner {
    justify-content: flex-start;
  }

  .logo {
    margin-right: 1rem;
  }

  .header__toggle {
    display: flex; 
    margin: 0;
  }
}

/* ------
  Signup 
------- */
.auth-section {
  max-width: 500px;
  margin: 4rem auto;
  padding: 2.5rem 2rem;
  background: var(--color-card-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 6px 20px rgb(0 0 0 / 10%);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-section:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgb(0 0 0 / 15%);
}

.auth-section h1 {
  margin-bottom: 2rem;
  font-size: 2rem;
  text-align: center;
  color: var(--color-primary);
}

.auth-form .form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.auth-form .form-group input,
.auth-form .form-group textarea {
  width: 100%;
  border: 1px solid var(--color-header-bg);
  padding: 0.75rem 1rem;
  border-radius: var(--btn-radius);
  transition: border-color var(--transition-fast),
              background var(--transition-fast);
}

.auth-form .form-group input:focus,
.auth-form .form-group textarea:focus {
  border-color: var(--color-accent);
  background: rgb(255 255 255 / 95%);
}

.auth-form .form-group .errorlist {
  margin-top: 0.25rem;
  list-style: none;
  color: var(--color-accent);
  font-size: 0.875rem;
}

.auth-section .btn-primary {
  width: 100%;
  padding: 0.85rem;
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--btn-radius);
  margin-top: 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
}

.auth-section .btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.auth-switch {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.auth-switch a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.auth-switch a:hover {
  color: var(--color-accent);
}
  
@media (width <= 600px) {
  .auth-section {
    margin: 2rem 1rem;
    padding: 2rem 1rem;
  }

  .auth-section h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .auth-section .btn-primary {
    font-size: 0.9rem;
    padding: 0.75rem;
  }
}

/* -- 
Fix fixed header hiding contact heading
-- */
.contact-section {
  padding-top: 6rem;
  scroll-margin-top: 6rem;
}

@media (width <= 600px) {
  .contact-section {
    padding-top: 5rem;
    scroll-margin-top: 5rem;
  }
}

/* ----
   Login Page Styling
----- */
.auth-section {
  max-width: 400px;
  margin: 6rem auto;
  padding: 2.5rem 2rem;
  background-color: var(--color-card-bg);
  border-radius: var(--btn-radius);
  box-shadow: 0 6px 20px rgb(0 0 0 / 10%);
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast);
  text-align: center;
}

.auth-section:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgb(0 0 0 / 15%);
}

.auth-section h1 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
}

.auth-form .form-group {
  margin-bottom: 1rem;
  text-align: left;
}

.auth-form .form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.auth-form .form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-header-bg);
  border-radius: var(--btn-radius);
  transition: border-color var(--transition-fast);
}

.auth-form .form-group input:focus {
  border-color: var(--color-accent);
}

.auth-form .form-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.auth-form .btn-primary {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.auth-switch {
  margin-top: 1rem;
}

.auth-switch a {
  color: var(--color-primary);
  font-weight: 600;
}

/* Make action links visible & accessible (WCAG AA) */
a.action-link {
  color: #0b57d0;
  text-decoration: underline;
  font-weight: 600;
}
a.action-link:hover,
a.action-link:focus {
  text-decoration: none;
  outline: 2px solid transparent;
}

/* Accessible toast messages */
.messages {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(92vw, 640px);
  z-index: 1000;
}
.toast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  background: #f0f4ff;
  border-left: 6px solid #0b57d0;
}
.toast.success { background: #eaf7ee; border-left-color: #1b8f3a; }
.toast.info    { background: #eef5ff; border-left-color: #0b57d0; }
.toast.warning { background: #fff8e6; border-left-color: #b58100; }
.toast.error   { background: #ffefef; border-left-color: #c62828; }
.toast__text { margin-right: 1rem; }
.toast__close {
  border: 0;
  background: transparent;
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
}
@media (prefers-reduced-motion: no-preference) {
  .toast { animation: slideDown 240ms ease-out; }
  @keyframes slideDown {
    from { transform: translateY(-8px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
  }
}