styles.css

/* =====================================================
   DESIGN TOKENS
   ===================================================== */
:root {
    /* Colors */
    --bg:             #080808;
    --surface:        #111111;
    --surface-2:      #1a1a1a;
    --surface-3:      #222222;
    --border:         rgba(255, 255, 255, 0.06);
    --border-accent:  rgba(217, 119, 87, 0.18);

    --primary:        #D97757;
    --primary-dim:    rgba(217, 119, 87, 0.12);
    --primary-glow:   rgba(217, 119, 87, 0.25);
    --secondary:      #967FD9;

    --text:           #e8e8e8;
    --text-muted:     #8a8a8a;
    --text-subtle:    #555555;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing (8pt grid) */
    --sp-1:  4px;
    --sp-2:  8px;
    --sp-3:  12px;
    --sp-4:  16px;
    --sp-5:  20px;
    --sp-6:  24px;
    --sp-8:  32px;
    --sp-10: 40px;
    --sp-12: 48px;
    --sp-16: 64px;

    /* Border radius */
    --r-sm:   4px;
    --r:      8px;
    --r-lg:   12px;
    --r-pill: 999px;

    /* Transitions */
    --t:    150ms ease-out;
    --t-md: 220ms ease-out;
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* =====================================================
   ACCESSIBILITY
   ===================================================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: var(--sp-4);
    z-index: 9999;
    padding: 0.6rem 1.25rem;
    background: var(--primary);
    color: #000;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--r);
    text-decoration: none;
    transition: top 0.2s;
}

.skip-link:focus {
    top: var(--sp-4);
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: var(--r-sm);
}

/* =====================================================
   LAYOUT
   ===================================================== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--sp-5);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
    background: rgba(8, 8, 8, 0.92);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: var(--sp-6);
}

.logo a {
    color: var(--primary);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-decoration: none;
    transition: opacity var(--t);
}

.logo a:hover {
    opacity: 0.8;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--sp-2);
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: var(--sp-1) var(--sp-3);
    border-radius: var(--r-sm);
    text-decoration: none;
    transition: color var(--t), background var(--t);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
    color: var(--primary);
}

/* Hamburger toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sp-2);
    color: var(--text-muted);
    border-radius: var(--r-sm);
    transition: color var(--t), background var(--t);
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-toggle:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.nav-toggle svg {
    display: block;
    pointer-events: none;
}

/* Global search */
.nav-search {
    position: relative;
    flex-shrink: 0;
}

.nav-search-input {
    padding: var(--sp-1) var(--sp-3);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r-pill);
    color: var(--text);
    font-size: 0.875rem;
    font-family: var(--font-body);
    width: 150px;
    outline: none;
    transition: border-color var(--t), box-shadow var(--t), width var(--t-md);
}

.nav-search-input::placeholder {
    color: var(--text-subtle);
}

.nav-search-input:focus {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px var(--primary-dim);
    width: 210px;
}

.nav-search-results {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 340px;
    background: var(--surface-2);
    border: 1px solid var(--border-accent);
    border-radius: var(--r-lg);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
    z-index: 200;
    overflow: hidden;
}

.nav-search-results.active {
    display: block;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    text-decoration: none;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: background var(--t), color var(--t);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: var(--primary-dim);
    color: var(--primary);
}

.search-result-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
    background: rgba(217, 119, 87, 0.08);
    border: 1px solid rgba(217, 119, 87, 0.15);
    padding: 2px 7px;
    border-radius: var(--r-sm);
    white-space: nowrap;
    flex-shrink: 0;
}

.search-result-title {
    font-size: 0.875rem;
    line-height: 1.35;
    color: inherit;
}

.search-no-match {
    padding: var(--sp-4);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
    background: var(--surface);
    padding: 4rem 0 3.5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-accent);
    position: relative;
    overflow: hidden;
}

/* Subtle static grid */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(217, 119, 87, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(217, 119, 87, 0.025) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}

/* Radial fade overlay so grid fades toward center */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 100% at 50% 100%, transparent 40%, var(--surface) 100%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: var(--sp-4);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(0.9375rem, 2vw, 1.0625rem);
    color: var(--text-muted);
    letter-spacing: 0.01em;
    max-width: 580px;
    margin: 0 auto;
}

/* =====================================================
   MAIN
   ===================================================== */
main {
    padding: var(--sp-12) 0;
    min-height: calc(100dvh - 60px - 200px);
}

/* =====================================================
   POST LIST (homepage)
   ===================================================== */
.featured-posts h2 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-subtle);
    margin-bottom: var(--sp-6);
}

.post-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}

.post-list-item {
    padding: var(--sp-5) var(--sp-6);
    background: var(--surface);
    border-radius: var(--r-lg);
    border: 1px solid var(--border);
    transition: border-color var(--t-md), background var(--t-md), transform var(--t-md);
    cursor: pointer;
    position: relative;
}

.post-list-item:hover {
    border-color: var(--border-accent);
    background: var(--surface-2);
    transform: translateX(4px);
}

.post-list-item h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--sp-2);
    line-height: 1.4;
    transition: color var(--t);
}

.post-list-item:hover h3 {
    color: var(--primary);
}

.post-list-item .post-meta-row {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-3);
    flex-wrap: wrap;
}

.post-date {
    color: var(--text-subtle);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
}

.post-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
    background: rgba(217, 119, 87, 0.08);
    border: 1px solid rgba(217, 119, 87, 0.15);
    padding: 2px 8px;
    border-radius: var(--r-sm);
}

.post-excerpt {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    margin-top: var(--sp-4);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: gap var(--t), opacity var(--t);
}

.read-more:hover {
    gap: var(--sp-3);
    opacity: 0.85;
    color: var(--primary);
}

.read-more::after {
    content: '→';
}

/* =====================================================
   POST CARD (alternate grid view)
   ===================================================== */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--sp-5);
    margin-bottom: var(--sp-10);
}

.post-card {
    background: var(--surface);
    border-radius: var(--r-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color var(--t-md), transform var(--t-md), box-shadow var(--t-md);
    cursor: pointer;
    position: relative;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t-md);
}

.post-card:hover::before {
    transform: scaleX(1);
}

.post-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.post-card-content {
    padding: var(--sp-5) var(--sp-6);
}

.post-card h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--sp-2);
    line-height: 1.4;
    transition: color var(--t);
}

.post-card:hover h3 {
    color: var(--primary);
}

/* =====================================================
   SEARCH STATES
   ===================================================== */
.search-no-results {
    color: var(--text-muted);
    padding: var(--sp-8) 0;
    font-size: 0.9375rem;
}

/* =====================================================
   SINGLE POST
   ===================================================== */
.post-content {
    max-width: 720px;
    margin: 0 auto;
}

#post-header {
    margin-bottom: var(--sp-8);
    padding-bottom: var(--sp-6);
    border-bottom: 1px solid var(--border);
}

#post-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: var(--sp-4);
}

#post-header .post-meta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.875rem;
}

#post-body {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text);
}

#post-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    color: var(--text);
    margin-top: var(--sp-10);
    margin-bottom: var(--sp-4);
    padding-bottom: var(--sp-2);
    border-bottom: 1px solid var(--border);
}

#post-body h3 {
    font-size: 1.1875rem;
    font-weight: 600;
    color: var(--text);
    margin-top: var(--sp-8);
    margin-bottom: var(--sp-3);
}

#post-body h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: var(--sp-6);
    margin-bottom: var(--sp-2);
}

#post-body p {
    margin-bottom: var(--sp-5);
}

#post-body ul,
#post-body ol {
    margin-bottom: var(--sp-5);
    padding-left: var(--sp-6);
}

#post-body li {
    margin-bottom: var(--sp-2);
    color: var(--text);
}

#post-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(217, 119, 87, 0.4);
}

#post-body a:hover {
    color: var(--secondary);
    text-decoration-color: var(--secondary);
}

#post-body strong {
    color: var(--text);
    font-weight: 600;
}

#post-body em {
    color: var(--text-muted);
}

#post-body blockquote {
    border-left: 3px solid var(--border-accent);
    padding: var(--sp-3) var(--sp-5);
    margin: var(--sp-6) 0;
    background: var(--surface);
    border-radius: 0 var(--r) var(--r) 0;
    color: var(--text-muted);
    font-style: italic;
}

#post-body code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--surface-2);
    color: var(--secondary);
    padding: 2px 6px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
}

#post-body pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: var(--sp-5);
    overflow-x: auto;
    margin-bottom: var(--sp-6);
}

#post-body pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text);
    font-size: 0.875rem;
}

#post-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--sp-6);
    font-size: 0.9375rem;
    background: var(--surface);
    border-radius: var(--r);
    overflow: hidden;
}

#post-body th {
    background: var(--surface-2);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: var(--sp-3) var(--sp-4);
    text-align: left;
    border-bottom: 1px solid var(--border-accent);
}

#post-body td {
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--border);
    color: var(--text);
    line-height: 1.5;
}

#post-body tr:last-child td {
    border-bottom: none;
}

#post-body tr:hover td {
    background: var(--primary-dim);
}

#post-body img {
    max-width: 100%;
    border-radius: var(--r-lg);
    margin: var(--sp-6) auto;
    border: 1px solid var(--border);
}

#post-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: var(--sp-10) 0;
}

.post-footer {
    margin-top: var(--sp-12);
    padding-top: var(--sp-6);
    border-top: 1px solid var(--border);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--t), gap var(--t);
}

.back-link:hover {
    color: var(--primary);
    gap: var(--sp-3);
}

/* =====================================================
   CONCEITOS PAGE
   ===================================================== */
#conceitos-content {
    max-width: 100%;
}

#conceitos-content h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: var(--sp-3);
}

#conceitos-content > p:first-of-type {
    text-align: center;
    font-size: 1.0625rem;
    color: var(--text-muted);
    margin-bottom: var(--sp-12);
}

#conceitos-content h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text);
    margin-top: var(--sp-12);
    margin-bottom: var(--sp-5);
    padding: var(--sp-3) var(--sp-5);
    background: var(--surface);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--r) var(--r) 0;
}

#conceitos-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: var(--sp-8);
    margin-bottom: var(--sp-4);
    padding-left: var(--sp-4);
    border-left: 2px solid var(--border-accent);
}

/* Index sub-headings */
#conceitos-content > h3:nth-of-type(1),
#conceitos-content > h3:nth-of-type(2),
#conceitos-content > h3:nth-of-type(3),
#conceitos-content > h3:nth-of-type(4) {
    border-left: none;
    padding-left: var(--sp-2);
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-top: var(--sp-4);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Index lists */
#conceitos-content ul:first-of-type,
#conceitos-content ul:nth-of-type(2),
#conceitos-content ul:nth-of-type(3),
#conceitos-content ul:nth-of-type(4),
#conceitos-content ul:nth-of-type(5),
#conceitos-content ul:nth-of-type(6),
#conceitos-content ul:nth-of-type(7) {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: var(--sp-4) var(--sp-5);
    border-radius: var(--r);
    margin-bottom: var(--sp-3);
    list-style: none;
}

#conceitos-content ul:first-of-type li,
#conceitos-content ul:nth-of-type(2) li,
#conceitos-content ul:nth-of-type(3) li,
#conceitos-content ul:nth-of-type(4) li,
#conceitos-content ul:nth-of-type(5) li,
#conceitos-content ul:nth-of-type(6) li,
#conceitos-content ul:nth-of-type(7) li {
    margin-bottom: var(--sp-1);
}

#conceitos-content ul:first-of-type li a,
#conceitos-content ul:nth-of-type(2) li a,
#conceitos-content ul:nth-of-type(3) li a,
#conceitos-content ul:nth-of-type(4) li a,
#conceitos-content ul:nth-of-type(5) li a,
#conceitos-content ul:nth-of-type(6) li a,
#conceitos-content ul:nth-of-type(7) li a {
    font-size: 0.9375rem;
    color: var(--text-muted);
    text-decoration: none;
    display: inline-block;
    padding: 2px 0;
    transition: color var(--t), transform var(--t);
}

#conceitos-content ul:first-of-type li a:hover,
#conceitos-content ul:nth-of-type(2) li a:hover,
#conceitos-content ul:nth-of-type(3) li a:hover,
#conceitos-content ul:nth-of-type(4) li a:hover,
#conceitos-content ul:nth-of-type(5) li a:hover,
#conceitos-content ul:nth-of-type(6) li a:hover,
#conceitos-content ul:nth-of-type(7) li a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

#conceitos-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
    margin-top: var(--sp-6);
    margin-bottom: var(--sp-3);
}

#conceitos-content p {
    margin-bottom: var(--sp-5);
    line-height: 1.8;
    color: var(--text);
}

#conceitos-content ul {
    margin-bottom: var(--sp-5);
    padding-left: var(--sp-6);
}

#conceitos-content li {
    margin-bottom: var(--sp-2);
    line-height: 1.65;
    color: var(--text);
}

#conceitos-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

#conceitos-content a:hover {
    color: var(--secondary);
}

#conceitos-content strong {
    color: var(--text);
    font-weight: 600;
}

#conceitos-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--surface-2);
    color: var(--secondary);
    padding: 2px 6px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
}

#conceitos-content pre {
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: var(--sp-5);
    border-radius: var(--r);
    overflow-x: auto;
    margin-bottom: var(--sp-6);
}

#conceitos-content pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text);
}

#conceitos-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--sp-6);
    font-size: 0.9375rem;
    background: var(--surface);
    border-radius: var(--r);
    overflow: hidden;
}

#conceitos-content th {
    background: var(--surface-2);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: var(--sp-3) var(--sp-4);
    text-align: left;
    border-bottom: 1px solid var(--border-accent);
}

#conceitos-content td {
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

#conceitos-content tr:last-child td {
    border-bottom: none;
}

#conceitos-content tr:hover td {
    background: var(--primary-dim);
}

#conceitos-content blockquote {
    border-left: 3px solid var(--border-accent);
    padding: var(--sp-3) var(--sp-5);
    margin: var(--sp-6) 0;
    background: var(--surface);
    border-radius: 0 var(--r) var(--r) 0;
    color: var(--text-muted);
    font-style: italic;
}

#conceitos-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: var(--sp-10) 0;
}

/* =====================================================
   RECURSOS PAGE
   ===================================================== */
#recursos-content {
    max-width: 100%;
}

#recursos-content h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: var(--sp-3);
}

#recursos-content > p:first-of-type {
    text-align: center;
    font-size: 1.0625rem;
    color: var(--text-muted);
    margin-bottom: var(--sp-12);
}

#recursos-content h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text);
    margin-top: var(--sp-12);
    margin-bottom: var(--sp-5);
    padding: var(--sp-3) var(--sp-5);
    background: var(--surface);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--r) var(--r) 0;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

#recursos-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--secondary);
    margin-top: var(--sp-8);
    margin-bottom: var(--sp-5);
    padding-left: var(--sp-3);
    border-left: 2px solid rgba(150, 127, 217, 0.3);
}

#recursos-content p {
    margin-bottom: var(--sp-5);
    line-height: 1.8;
    color: var(--text);
}

#recursos-content ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--sp-4);
    margin-bottom: var(--sp-8);
    list-style: none;
    padding: 0;
}

#recursos-content li {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: var(--sp-5);
    border-radius: var(--r-lg);
    transition: border-color var(--t-md), transform var(--t-md);
    position: relative;
    overflow: hidden;
}

#recursos-content li::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--t-md);
}

#recursos-content li:hover::before {
    transform: scaleY(1);
}

#recursos-content li:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
}

#recursos-content li a {
    font-weight: 600;
    font-size: 1rem;
    display: block;
    margin-bottom: var(--sp-2);
    color: var(--text);
    text-decoration: none;
    transition: color var(--t);
}

#recursos-content li:hover a {
    color: var(--primary);
}

#recursos-content strong {
    color: var(--primary);
    font-weight: 600;
}

#recursos-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--surface-2);
    color: var(--secondary);
    padding: 2px 6px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
}

/* =====================================================
   ABOUT PAGE
   ===================================================== */
.about-content {
    max-width: 720px;
    margin: 0 auto;
}

.about-content h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: var(--sp-6);
    line-height: 1.2;
}

.about-content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-top: var(--sp-8);
    margin-bottom: var(--sp-4);
}

.about-content p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: var(--sp-5);
}

.about-content ul {
    margin-bottom: var(--sp-5);
    padding-left: var(--sp-6);
}

.about-content li {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: var(--sp-2);
}

.about-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.about-content a:hover {
    color: var(--secondary);
}

.about-content strong {
    color: var(--text);
    font-weight: 600;
}

/* =====================================================
   FOOTER
   ===================================================== */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: var(--sp-6) 0;
    margin-top: var(--sp-16);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--sp-4);
    flex-wrap: wrap;
}

.footer-content p {
    font-size: 0.875rem;
    color: var(--text-subtle);
    margin: 0;
}

.visit-counter {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: 0.8125rem;
    color: var(--text-muted);
    padding: var(--sp-1) var(--sp-4);
    background: var(--surface-2);
    border-radius: var(--r-pill);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    transition: border-color var(--t), color var(--t);
}

.visit-counter:hover {
    border-color: var(--border-accent);
    color: var(--primary);
}

.counter-icon {
    display: flex;
    align-items: center;
    color: var(--primary);
    opacity: 0.7;
}

.counter-text {
    font-weight: 500;
    color: var(--text-subtle);
    font-family: var(--font-body);
    font-size: 0.8125rem;
}

.counter-value {
    font-weight: 600;
    color: var(--primary);
    min-width: 36px;
    text-align: right;
}

/* =====================================================
   RESPONSIVE — TABLET (≤768px)
   ===================================================== */
@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
        height: auto;
        padding: var(--sp-3) var(--sp-4);
        gap: var(--sp-3);
    }

    .logo {
        flex: 1;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        border-top: 1px solid var(--border);
        padding-top: var(--sp-2);
        padding-bottom: var(--sp-2);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        display: block;
        padding: var(--sp-3) var(--sp-2);
        border-radius: var(--r);
    }

    .nav-search {
        order: 3;
        width: 100%;
        border-top: 1px solid var(--border);
        padding-top: var(--sp-3);
    }

    .nav-search-input {
        width: 100%;
    }

    .nav-search-input:focus {
        width: 100%;
    }

    .nav-search-results {
        width: 100%;
        left: 0;
        right: 0;
    }

    .hero {
        padding: 2.5rem 0 2rem;
    }

    main {
        padding: var(--sp-8) 0;
    }

    .post-list-item {
        padding: var(--sp-4) var(--sp-5);
    }

    .post-list-item:hover {
        transform: none;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    #recursos-content ul {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   RESPONSIVE — MOBILE (≤480px)
   ===================================================== */
@media (max-width: 480px) {
    .post-list-item h3 {
        font-size: 1rem;
    }

    #post-header h1 {
        font-size: 1.5rem;
    }

    #post-body {
        font-size: 1rem;
    }

    #post-body table {
        font-size: 0.875rem;
    }

    #conceitos-content h2,
    #recursos-content h2 {
        font-size: 1.125rem;
    }
}

/* =====================================================
   RECURSOS PAGE
   ===================================================== */
.recursos-page {
    padding-top: var(--sp-8);
    padding-bottom: var(--sp-16);
}

.recursos-page-header {
    margin-bottom: var(--sp-10);
}

.recursos-page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--sp-2);
}

.recursos-page-header p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    max-width: 560px;
    line-height: 1.6;
}

/* Section */
.recursos-section {
    margin-bottom: var(--sp-12);
}

.recursos-section-header {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-5);
    padding-bottom: var(--sp-3);
    border-bottom: 1px solid var(--border);
}

.recursos-section-icon {
    width: 16px;
    height: 16px;
    color: var(--primary);
    flex-shrink: 0;
}

.recursos-section-header h2 {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin: 0;
    border: none;
    padding: 0;
}

.recursos-section-count {
    margin-left: auto;
    font-size: 0.6875rem;
    color: var(--text-subtle);
    background: var(--surface-3);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: var(--r-pill);
    font-variant-numeric: tabular-nums;
}

/* Generic resource grid */
.recursos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--sp-3);
}

.recursos-grid-wide {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Resource card — link card */
.recurso-card {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    padding: var(--sp-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    text-decoration: none;
    transition: transform var(--t), border-color var(--t-md), box-shadow var(--t-md);
    position: relative;
    overflow: hidden;
}

.recurso-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--primary);
    opacity: 0;
    transition: opacity var(--t);
}

.recurso-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-accent);
    box-shadow: 0 6px 20px rgba(217, 119, 87, 0.07);
    color: inherit;
    text-decoration: none;
}

.recurso-card:hover::before {
    opacity: 1;
}

.recurso-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-2);
}

.recurso-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
    transition: color var(--t);
}

.recurso-card:hover .recurso-name {
    color: var(--primary);
}

.recurso-ext-icon {
    width: 13px;
    height: 13px;
    color: var(--text-subtle);
    flex-shrink: 0;
    margin-top: 2px;
    transition: color var(--t);
}

.recurso-card:hover .recurso-ext-icon {
    color: var(--primary);
}

.recurso-desc {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

/* Vendor card — static container with sub-links */
.recurso-vendor-card {
    padding: var(--sp-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    transition: border-color var(--t-md);
    position: relative;
    overflow: hidden;
}

.recurso-vendor-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--primary);
    opacity: 0;
    transition: opacity var(--t);
}

.recurso-vendor-card:hover {
    border-color: var(--border-accent);
}

.recurso-vendor-card:hover::before {
    opacity: 1;
}

.recurso-vendor-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--sp-3);
}

.recurso-vendor-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.recurso-vendor-links li a {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 3px 0;
    transition: color var(--t);
}

.recurso-vendor-links li a::before {
    content: '→';
    color: var(--primary);
    opacity: 0.45;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.recurso-vendor-links li a:hover {
    color: var(--primary);
}

/* Certification card */
.recurso-cert-card {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    padding: var(--sp-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    text-decoration: none;
    transition: transform var(--t), border-color var(--t-md);
    position: relative;
    overflow: hidden;
}

.recurso-cert-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--secondary);
    opacity: 0;
    transition: opacity var(--t);
}

.recurso-cert-card:hover {
    transform: translateY(-2px);
    border-color: rgba(150, 127, 217, 0.2);
    color: inherit;
    text-decoration: none;
}

.recurso-cert-card:hover::before {
    opacity: 1;
}

.recurso-cert-code {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--secondary);
}

.recurso-cert-name {
    font-size: 0.8125rem;
    color: var(--text);
    line-height: 1.4;
    font-weight: 500;
    flex: 1;
}

.recurso-cert-vendor {
    font-size: 0.6875rem;
    color: var(--text-subtle);
    background: var(--surface-3);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: var(--r-pill);
    display: inline-block;
    width: fit-content;
    margin-top: auto;
}

/* YouTube grid */
.recursos-yt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sp-3);
}

.recurso-yt-card {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    text-decoration: none;
    transition: transform var(--t), border-color var(--t-md);
}

.recurso-yt-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-accent);
    color: inherit;
    text-decoration: none;
}

.recurso-yt-dot {
    width: 30px;
    height: 30px;
    background: rgba(255, 60, 60, 0.1);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.recurso-yt-dot svg {
    width: 14px;
    height: 14px;
    color: #ff5555;
}

.recurso-yt-info {
    min-width: 0;
}

.recurso-yt-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text);
    transition: color var(--t);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.recurso-yt-card:hover .recurso-yt-name {
    color: var(--primary);
}

.recurso-yt-type {
    font-size: 0.7rem;
    color: var(--text-subtle);
    margin-top: 2px;
}

/* Social pills */
.recursos-social-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

.recurso-social-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-3);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-pill);
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: border-color var(--t), color var(--t), background var(--t);
    white-space: nowrap;
}

.recurso-social-pill:hover {
    border-color: var(--border-accent);
    color: var(--primary);
    background: var(--primary-dim);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 640px) {
    .recursos-grid,
    .recursos-grid-wide {
        grid-template-columns: 1fr;
    }

    .recursos-yt-grid {
        grid-template-columns: 1fr 1fr;
    }

    .recursos-page-header h1 {
        font-size: 1.375rem;
    }
}

/* =====================================================
   REDUCED MOTION
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* =====================================================
   CONVERSOR DE UNIDADES
   ===================================================== */

/* ── Page header ──────────────────────────────────── */
.conv-page-header {
    padding: var(--sp-10) 0 var(--sp-8);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--sp-8);
}

.conv-page-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.15;
    background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--sp-3);
}

.conv-page-header p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    max-width: 520px;
    line-height: 1.65;
}

/* ── Input card ───────────────────────────────────── */
.conv-input-card {
    background: var(--surface);
    border: 1px solid var(--border-accent);
    border-radius: var(--r-lg);
    padding: var(--sp-6);
    margin-bottom: var(--sp-8);
    box-shadow: 0 0 0 1px rgba(217, 119, 87, 0.04), 0 8px 32px rgba(0, 0, 0, 0.45);
}

.conv-field-group {
    display: grid;
    grid-template-columns: 1fr 230px;
    gap: var(--sp-3);
    align-items: end;
    margin-bottom: var(--sp-4);
}

.conv-field {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.conv-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-subtle);
    user-select: none;
}

.conv-value-input {
    width: 100%;
    padding: var(--sp-4) var(--sp-5);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 400;
    line-height: 1.2;
    outline: none;
    transition: border-color var(--t), box-shadow var(--t);
    -moz-appearance: textfield;
}

.conv-value-input::-webkit-outer-spin-button,
.conv-value-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.conv-value-input::placeholder {
    color: var(--text-subtle);
}

.conv-value-input:focus {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px var(--primary-dim);
}

.conv-unit-select {
    width: 100%;
    padding: var(--sp-3) var(--sp-4);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    /* match visual height of input */
    height: 64px;
    transition: border-color var(--t);
}

.conv-unit-select:focus {
    border-color: var(--border-accent);
}

.conv-unit-select option,
.conv-unit-select optgroup {
    background: var(--surface-2);
    color: var(--text);
}

/* Bytes equivalent feedback */
.conv-bytes-eq {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-subtle);
    min-height: 20px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding-left: 2px;
}

.conv-bytes-label {
    color: var(--text-subtle);
}

.conv-bytes-val {
    color: var(--primary);
    opacity: 0.85;
}

/* ── Results grid ─────────────────────────────────── */
.conv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-4);
    margin-bottom: var(--sp-8);
}

.conv-section--bits {
    grid-column: 1 / -1;
}

.conv-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
}

/* ── Section head ─────────────────────────────────── */
.conv-section-head {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    padding: var(--sp-5) var(--sp-5);
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}

.conv-badge {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 5px 10px;
    border-radius: var(--r-sm);
    white-space: nowrap;
    flex-shrink: 0;
}

.conv-badge--si {
    color: var(--primary);
    background: rgba(217, 119, 87, 0.1);
    border: 1px solid rgba(217, 119, 87, 0.25);
}

.conv-badge--iec {
    color: var(--secondary);
    background: rgba(150, 127, 217, 0.1);
    border: 1px solid rgba(150, 127, 217, 0.25);
}

.conv-badge--bits {
    color: #f0b429;
    background: rgba(240, 180, 41, 0.08);
    border: 1px solid rgba(240, 180, 41, 0.25);
}

.conv-section-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 3px;
}

.conv-section-sub {
    font-size: 0.6875rem;
    color: var(--text-subtle);
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
}

/* ── Column labels ────────────────────────────────── */
.conv-col-head {
    display: grid;
    grid-template-columns: 52px 1fr auto;
    gap: var(--sp-3);
    padding: var(--sp-2) var(--sp-5) var(--sp-2) calc(var(--sp-5) + 4px);
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.015);
}

.conv-col-head span {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-subtle);
}

.conv-col-head span:last-child {
    text-align: right;
}

/* ── Rows ─────────────────────────────────────────── */
.conv-row {
    display: grid;
    grid-template-columns: 52px 1fr auto 40px;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-5);
    border-bottom: 1px solid var(--border);
    border-left: 3px solid transparent;
    min-height: 52px;
    transition: background var(--t), border-left-color var(--t);
    cursor: default;
}

.conv-row:last-child {
    border-bottom: none;
}

.conv-row:hover {
    background: rgba(255, 255, 255, 0.025);
}

/* Source unit: strong left accent */
.conv-row.is-source {
    background: rgba(217, 119, 87, 0.06);
    border-left-color: var(--primary);
}

.conv-row.is-source .conv-sym {
    color: var(--primary);
    font-weight: 600;
}

.conv-row.is-source .conv-val {
    color: var(--primary);
    font-size: 1rem;
}

.conv-row.is-source .conv-copy {
    display: none;
}

/* Bits: 3-column grid */
.conv-table--bits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.conv-table--bits .conv-row {
    border-right: 1px solid var(--border);
    border-left: none; /* override — bits rows don't have accent border to avoid clutter */
}

.conv-table--bits .conv-row.is-source {
    border-left: none;
    border-top: 2px solid var(--primary);
    margin-top: -1px;
}

.conv-table--bits .conv-row:nth-child(3n) {
    border-right: none;
}

.conv-table--bits .conv-row:nth-last-child(-n+3) {
    border-bottom: none;
}

/* ── Cells ────────────────────────────────────────── */
.conv-sym {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--t);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-name {
    font-size: 0.8125rem;
    color: var(--text-subtle);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-val {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
    text-align: right;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
    transition: color var(--t), font-size var(--t);
}

/* ── Copy button ──────────────────────────────────── */
.conv-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: none;
    border: none;
    border-radius: var(--r-sm);
    cursor: pointer;
    color: var(--text-subtle);
    opacity: 0;
    transition: opacity var(--t), color var(--t), background var(--t);
    touch-action: manipulation;
}

.conv-row:hover .conv-copy {
    opacity: 1;
}

.conv-copy:hover {
    color: var(--primary);
    background: var(--primary-dim);
}

.conv-copy:focus-visible {
    opacity: 1;
}

.conv-copy.copied {
    color: var(--primary);
    opacity: 1;
}

/* ── Note ─────────────────────────────────────────── */
.conv-note {
    display: flex;
    gap: var(--sp-3);
    align-items: flex-start;
    font-size: 0.8125rem;
    color: var(--text-subtle);
    line-height: 1.7;
    padding: var(--sp-4) var(--sp-5);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    margin-bottom: var(--sp-12);
}

.conv-note-icon {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--text-subtle);
    opacity: 0.6;
}

.conv-note p {
    margin: 0;
}

.conv-note strong {
    color: var(--text-muted);
    font-weight: 600;
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
    .conv-field-group {
        grid-template-columns: 1fr;
    }

    .conv-unit-select {
        height: auto;
        padding: var(--sp-3) var(--sp-4);
    }

    .conv-grid {
        grid-template-columns: 1fr;
    }

    .conv-section--bits {
        grid-column: 1;
    }

    .conv-table--bits {
        grid-template-columns: repeat(2, 1fr);
    }

    .conv-table--bits .conv-row:nth-child(3n) {
        border-right: 1px solid var(--border);
    }

    .conv-table--bits .conv-row:nth-last-child(-n+3) {
        border-bottom: 1px solid var(--border);
    }

    .conv-table--bits .conv-row:nth-child(2n) {
        border-right: none;
    }

    .conv-table--bits .conv-row:nth-last-child(-n+2) {
        border-bottom: none;
    }

    .conv-input-card {
        padding: var(--sp-4);
    }
}

@media (max-width: 480px) {
    .conv-value-input {
        font-size: 1.5rem;
        padding: var(--sp-3) var(--sp-4);
    }

    .conv-table--bits {
        grid-template-columns: 1fr;
    }

    .conv-table--bits .conv-row {
        border-right: none;
    }

    .conv-table--bits .conv-row:nth-child(2n) {
        border-right: none;
    }

    .conv-table--bits .conv-row:nth-last-child(-n+2) {
        border-bottom: 1px solid var(--border);
    }

    .conv-table--bits .conv-row:last-child {
        border-bottom: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .conv-row,
    .conv-copy,
    .conv-value-input,
    .conv-unit-select {
        transition: none;
    }
}

/* =====================================================
   PRINT
   ===================================================== */
@media print {
    .navbar,
    .hero,
    footer,
    .skip-link,
    .back-link,
    .read-more {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
        font-size: 12pt;
    }

    .post-content,
    .about-content {
        max-width: 100%;
    }

    a[href]::after {
        content: ' (' attr(href) ')';
        font-size: 0.8em;
        color: #555;
    }
}