/*
Theme Name: Calder Author
Theme URI: https://samueldcalder.com
Author: Samuel D. Calder
Author URI: https://samueldcalder.com
Description: Custom author theme for Samuel D. Calder — dark, literary, with a tech undertone.
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: calder-author
Tags: dark, author, portfolio, blog, custom-menu, featured-images

Dark literary author theme. Clean typography, teal accents, cinematic atmosphere.
*/

/* ==========================================================================
   CSS Variables / Design Tokens
   ========================================================================== */

:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-text-primary: #e8e8ed;
    --color-text-secondary: #8a8a9a;
    --color-accent: #00bcd4;
    --color-accent-hover: #00e5ff;
    --color-border: #1e1e2e;

    /* Typography */
    --font-heading: 'IBM Plex Serif', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-nav: 'IBM Plex Sans', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Layout */
    --max-width: 1200px;
    --max-width-narrow: 800px;
}

/* ==========================================================================
   Base / Reset
   ========================================================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    line-height: 1.7;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

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

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: #ffffff;
    margin-bottom: var(--space-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container--narrow {
    max-width: var(--max-width-narrow);
}

.container--auth {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-xl) 0;
}

.section--alt {
    background-color: var(--color-bg-secondary);
}

.section--auth-stage {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 80px;
    background:
        radial-gradient(circle at top center, rgba(0, 188, 212, 0.16), transparent 28%),
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.06), transparent 22%),
        linear-gradient(180deg, rgba(11, 14, 22, 0.84), rgba(8, 9, 14, 0.96)),
        var(--color-bg-primary);
}

.section--auth-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, transparent 0, rgba(0, 188, 212, 0.06) 50%, transparent 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 24%);
    opacity: 0.55;
    pointer-events: none;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.3s ease;
}

.site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.15rem var(--space-md);
    gap: 2rem;
}

.site-logo {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.site-logo a {
    color: inherit;
}

.main-nav {
    justify-self: center;
}

.site-header__actions {
    display: flex;
    align-items: center;
    justify-self: end;
    gap: 0.9rem;
}

.site-header__link {
    font-family: var(--font-nav);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
}

.site-header__link--primary {
    color: var(--color-accent);
}

.site-header__link--button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.8rem 1.3rem;
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.02);
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.site-header__link--button:hover {
    border-color: var(--color-accent);
    background: rgba(0, 188, 212, 0.08);
}

.site-header__link--secondary {
    color: var(--color-text-primary);
}

.site-header__link--primary.site-header__link--button {
    border-color: rgba(0, 188, 212, 0.65);
    background: rgba(0, 188, 212, 0.14);
}

.site-header__link--primary.site-header__link--button:hover {
    background: rgba(0, 188, 212, 0.22);
}

.main-nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1.5rem;
}

.main-nav a {
    font-family: var(--font-nav);
    font-size: 0.98rem;
    font-weight: 500;
    color: #d4d4dd;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    transition: color 0.2s ease, opacity 0.2s ease;
}

.main-nav a:hover {
    opacity: 1;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding-top: 80px;
}

.hero__content {
    max-width: 700px;
    padding: var(--space-md);
}

.hero__title {
    font-size: 3.5rem;
    margin-bottom: var(--space-sm);
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.hero__actions {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-family: var(--font-nav);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

.btn--filled {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

.btn--filled:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

/* ==========================================================================
   Cards (Blog, Books)
   ========================================================================== */

.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

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

.card__image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.card__body {
    padding: var(--space-md);
}

.card__title {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.card__meta {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.card__excerpt {
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Blog Grid
   ========================================================================== */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-md);
}

/* ==========================================================================
   Section Heading
   ========================================================================== */

.section-heading {
    max-width: 760px;
    margin-bottom: var(--space-lg);
}

.section-heading__eyebrow,
.workflow-step__eyebrow,
.reader-meta__eyebrow,
.chapter-card__eyebrow {
    font-family: var(--font-nav);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
}

.section-heading__copy,
.page-intro {
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Books / Library
   ========================================================================== */

.book-shelf {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.book-shelf--dashboard {
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.book-card,
.dashboard-book-card,
.workflow-step,
.reader-shell,
.chapter-card,
.empty-state,
.comment-login-prompt,
.page-shell {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
}

.book-card {
    display: grid;
    grid-template-columns: minmax(140px, 200px) 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
}

.dashboard-book-card {
    display: grid;
    grid-template-columns: minmax(180px, 220px) 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
        var(--color-bg-secondary);
}

.dashboard-book-card__cover img {
    width: 100%;
    aspect-ratio: 2 / 3;
    object-fit: cover;
}

.dashboard-book-card__body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.dashboard-book-card__header h2 {
    margin-bottom: 0;
}

.dashboard-book-card__subtitle,
.reader-book__subtitle {
    margin-bottom: 0;
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-size: 1.15rem;
}

.dashboard-book-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1rem;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.dashboard-book-card__excerpt {
    color: var(--color-text-secondary);
}

.dashboard-book-card__actions {
    margin-top: auto;
}

.book-card__cover img,
.reader-book__cover img {
    width: 100%;
    aspect-ratio: 2 / 3;
    object-fit: cover;
}

.book-card__placeholder,
.reader-book__placeholder {
    display: grid;
    place-items: center;
    width: 100%;
    aspect-ratio: 2 / 3;
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.12), rgba(255, 255, 255, 0.04));
    color: var(--color-accent);
    font-family: var(--font-nav);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.book-card__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.book-card__subtitle {
    color: var(--color-text-secondary);
}

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

.workflow-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md);
}

.workflow-step {
    padding: var(--space-md);
}

.empty-state {
    padding: var(--space-lg);
}

.page-shell {
    padding: var(--space-lg);
}

.page-shell__header {
    margin-bottom: var(--space-md);
}

.page-shell__content {
    color: var(--color-text-primary);
}

.page-shell__content > *:last-child {
    margin-bottom: 0;
}

.page-shell--auth {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
    padding: 3.35rem 3.75rem 3rem;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01)),
        linear-gradient(180deg, rgba(0, 188, 212, 0.06), transparent 22%),
        #141720;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    box-shadow: 0 40px 120px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

.page-shell--auth::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 188, 212, 0.7), transparent);
}

.auth-brand {
    display: inline-flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
    padding: 0.85rem 1.1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
}

.auth-brand__label,
.auth-brand__status {
    margin-bottom: 0;
}

.auth-brand__label {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #ffffff;
}

.auth-brand__status {
    font-family: var(--font-nav);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.auth-shell .tml {
    margin-top: 2rem;
}

.auth-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.75rem;
}

.auth-header-link {
    margin-bottom: 0;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    text-align: right;
}

.auth-header-link a {
    color: var(--color-accent);
}

.auth-social {
    margin-bottom: 2rem;
    padding: 1.5rem 1.6rem;
    background: rgba(255, 255, 255, 0.028);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 14px;
}

.auth-social__header h2 {
    font-size: 1.35rem;
    margin-bottom: 0.35rem;
}

.auth-social__header p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.auth-social__buttons .nsl-container {
    margin: 0;
}

.auth-social__buttons .nsl-button,
.auth-social__buttons .nsl-button-default,
.auth-social__buttons .nsl-button-google {
    width: 100%;
}

.auth-social__empty {
    padding: 1rem 1.1rem;
    background: rgba(0, 188, 212, 0.06);
    border: 1px dashed rgba(0, 188, 212, 0.28);
    border-radius: 12px;
}

.auth-social__empty p:last-child {
    margin-bottom: 0;
}

.auth-social__mock-button {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    width: 100%;
    min-height: 56px;
    margin-bottom: 0.9rem;
    padding: 0.95rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    color: #ffffff;
    font-family: var(--font-nav);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.auth-social__mock-icon {
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: #ffffff;
    color: #111111;
    font-size: 0.95rem;
    font-weight: 700;
}

.auth-divider {
    position: relative;
    margin: 1.75rem 0 2rem;
    text-align: center;
}

.auth-divider::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    border-top: 1px solid var(--color-border);
}

.auth-divider span {
    position: relative;
    display: inline-block;
    padding: 0 1rem;
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    font-family: var(--font-nav);
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.auth-shell .tml-field-wrap {
    margin-bottom: 1.5rem;
}

.auth-shell .tml-label {
    display: block;
    margin-bottom: 0.6rem;
    font-family: var(--font-nav);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.auth-shell .tml-field {
    width: 100%;
    min-height: 64px;
    padding: 1rem 1.05rem;
    background: rgba(10, 12, 18, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 1.08rem;
    border-radius: 12px;
}

.auth-shell .tml-field:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px rgba(0, 188, 212, 0.22);
}

.auth-shell .tml-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 60px;
    padding: 0.95rem 1.6rem;
    border: 1px solid rgba(0, 188, 212, 0.65);
    background: rgba(0, 188, 212, 0.16);
    color: var(--color-accent);
    font-family: var(--font-nav);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.auth-shell .tml-button:hover {
    background: rgba(0, 188, 212, 0.24);
    border-color: var(--color-accent);
}

.auth-shell .tml-links {
    margin-top: 1.25rem;
    padding-top: 0;
    border-top: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem 1.25rem;
    justify-content: center;
}

.auth-shell .tml-links li {
    margin: 0;
}

.auth-shell .tml-links a {
    color: var(--color-accent);
    font-size: 0.95rem;
}

.auth-shell .tml p,
.auth-shell .tml-alerts,
.auth-shell .tml-field-wrap p {
    color: var(--color-text-secondary);
    font-size: 0.98rem;
}

.auth-shell .tml-action-links {
    display: none;
}

.auth-shell .tml-rememberme-wrap {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.auth-shell .tml-rememberme-wrap .tml-label {
    margin-bottom: 0;
    font-size: 0.82rem;
    letter-spacing: 0.1em;
}

.auth-shell .tml-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
}

.tml-action-register .auth-shell .tml-links .tml-login-link,
.tml-action-login .auth-shell .tml-links .tml-register-link {
    display: none;
}

.tml-action-register .auth-shell .tml-reg_passmail-wrap,
.tml-action-lostpassword .auth-shell .tml-field-wrap p {
    padding: 0.95rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 12px;
}

/* ==========================================================================
   Reader Flow
   ========================================================================== */

.reader-shell {
    padding: var(--space-lg);
}

.reader-book {
    display: grid;
    grid-template-columns: minmax(180px, 260px) 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.reader-book__copy {
    max-width: 720px;
}

.reader-book__meta,
.reader-chapter__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.reader-meta__eyebrow {
    display: inline-flex;
    align-items: center;
}

.reader-book__actions,
.reader-chapter__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.chapter-list {
    display: grid;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.chapter-card {
    padding: var(--space-md);
}

.chapter-card__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-bottom: 0.5rem;
}

.chapter-card__title {
    margin-bottom: 0;
}

.chapter-card__meta,
.comment-notes {
    color: var(--color-text-secondary);
}

.chapter-card__excerpt {
    margin: var(--space-sm) 0;
}

.chapter-card__lock {
    font-family: var(--font-nav);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.reader-chapter {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.reader-chapter__body {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-top: var(--space-lg);
}

.reader-chapter__body p {
    margin-bottom: 1.25rem;
}

/* ==========================================================================
   Comments
   ========================================================================== */

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

.comments-title,
.comment-reply-title {
    margin-bottom: var(--space-sm);
}

.comment-list {
    list-style: none;
    display: grid;
    gap: var(--space-md);
    margin: var(--space-md) 0;
}

.comment-body,
.comment-login-prompt {
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
}

.comment-meta,
.logged-in-as {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.comment-content {
    margin-top: 0.75rem;
}

.comment-form {
    display: grid;
    gap: var(--space-sm);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea,
.form input,
.form textarea,
.newsletter-form input {
    width: 100%;
    padding: 0.85rem 1rem;
    background: #0f1118;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font: inherit;
}

.comment-form textarea,
.form textarea {
    min-height: 180px;
}

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

.comment-form .submit {
    display: inline-block;
    padding: 0.75rem 2rem;
    border: 2px solid var(--color-accent);
    background: var(--color-accent);
    color: var(--color-bg-primary);
    font-family: var(--font-nav);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    border-top: 1px solid var(--color-accent);
    padding: var(--space-lg) 0 var(--space-md);
    background: var(--color-bg-secondary);
}

.site-footer--minimal {
    padding: 1.5rem 0 2rem;
    border-top-color: rgba(255, 255, 255, 0.06);
    background: rgba(8, 9, 14, 0.92);
}

.site-footer__minimal-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-footer--minimal p,
.site-footer--minimal .copyright {
    margin-bottom: 0;
    color: var(--color-text-secondary);
}

.site-footer--minimal .copyright {
    border-top: 0;
    padding-top: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-col h4 {
    font-family: var(--font-nav);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.footer-col p,
.footer-col li,
.footer-col a {
    color: var(--color-text-secondary);
}

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

.footer-col ul {
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.copyright {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-md);
}

/* ==========================================================================
   Single Post
   ========================================================================== */

.post-content {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.post-content h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-xs);
}

.post-content p {
    font-size: 1.1rem;
    line-height: 1.8;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .site-header__inner {
        display: flex;
        justify-content: space-between;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-primary);
        border-left: 1px solid var(--color-border);
        padding: var(--space-xl) var(--space-md);
        z-index: 999;
    }

    .main-nav.is-open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .hero__title {
        font-size: 2.25rem;
    }

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

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

    .site-header__actions {
        display: none;
    }

    .book-card,
    .dashboard-book-card,
    .reader-book,
    .workflow-grid {
        grid-template-columns: 1fr;
    }
}