/*
Theme Name: TDM Tech
Theme URI: https://github.com/tdm-labs/tdm-tech
Author: TDM Labs
Author URI: https://tdm-labs.com
Description: A simple, modern WordPress theme for tech showcase, portfolio, and blog.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: tdm-tech
Tags: blog, portfolio, custom-menu, featured-images, full-width-template, sticky-post, theme-options, threaded-comments, translation-ready, block-styles, wide-blocks
*/

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #0d1117;
  --color-surface: #161b22;
  --color-border: #30363d;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-accent: #58a6ff;
  --color-accent-hover: #79b8ff;
  --color-success: #3fb950;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
  --container:  min(1200px, 100vw - 2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.site-branding a {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.site-branding a:hover {
  color: var(--color-accent);
}

.main-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.main-navigation a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  padding: var(--space-xs) 0;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Hero (Front Page)
   -------------------------------------------------------------------------- */
.hero {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-md);
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 36em;
  margin: 0 auto var(--space-xl);
}

/* --------------------------------------------------------------------------
   Cards Grid (Portfolio / Posts)
   -------------------------------------------------------------------------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.card-link {
  display: block;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

.card-media {
  aspect-ratio: 16/10;
  background: var(--color-bg);
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  padding: var(--space-lg);
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  line-height: 1.35;
}

.card-excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* --------------------------------------------------------------------------
   Page Title
   -------------------------------------------------------------------------- */
.page-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.archive-description {
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Content (Single / Page)
   -------------------------------------------------------------------------- */
.entry-content {
  font-size: 1.0625rem;
}

.entry-content > * + * {
  margin-top: 1.25em;
}

.entry-content h1, .entry-content h2, .entry-content h3 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.3;
}

.entry-content h1 { font-size: 1.75rem; }
.entry-content h2 { font-size: 1.5rem; }
.entry-content h3 { font-size: 1.25rem; }

.entry-content code,
.entry-content kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.15em 0.4em;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.entry-content pre {
  overflow-x: auto;
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.entry-content pre code {
  padding: 0;
  background: none;
  border: none;
}

.entry-content blockquote {
  margin: 1.5em 0;
  padding-left: var(--space-lg);
  border-left: 4px solid var(--color-accent);
  color: var(--color-text-muted);
}

.entry-content ul, .entry-content ol {
  padding-left: 1.5em;
}

.entry-header {
  margin-bottom: var(--space-xl);
}

.single .entry-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
}

.entry-meta {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.entry-meta a {
  color: var(--color-text-muted);
}

.entry-meta a:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-info {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.site-info a {
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
  justify-content: center;
}

.pagination .nav-links a,
.pagination .nav-links span {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.9375rem;
}

.pagination .nav-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.pagination .nav-links .current {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Comments
   -------------------------------------------------------------------------- */
.comments-area {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.comment-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.comment-list > li {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-border);
}

.comments-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-lg);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  max-width: 400px;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
}

.comment-form label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

/* Button (e.g. front page "View all") */
.button {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: border-color var(--transition), color var(--transition);
}

.button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* WordPress pagination wrapper */
.navigation.pagination {
  margin-top: var(--space-2xl);
}

.alignwide { max-width: 1400px; margin-left: auto; margin-right: auto; }
.alignfull { max-width: none; width: 100vw; margin-left: calc(50% - 50vw); }