/*
Theme Name: The Petru Hub
Theme URI: https://petruamortoae.com
Author: Petru Amortoae
Author URI: https://petruamortoae.com
Description: A bespoke architectural blueprint theme for digital education and affiliate management. Built for scale: 1,000+ posts, native affiliate engine, Elementor Pro compatible.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: petru-hub
Tags: education, blog, custom-menu, custom-logo, featured-images, full-width-template
*/

/* ==========================================================================
   0. IMPORTS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@100;400;700;900&family=IBM+Plex+Mono:wght@300;400;600&display=swap');

/* ==========================================================================
   1. DESIGN TOKENS (CSS Custom Properties)
   ========================================================================== */

:root {
    /* Palette */
    --color-bg: #F8F8F8;
    --color-surface: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-muted: rgba(26, 26, 26, 0.6);
    --color-text-faint: rgba(26, 26, 26, 0.4);
    --color-text-ghost: rgba(26, 26, 26, 0.1);
    --color-accent: #FF3F3F;
    --color-accent-soft: rgba(255, 63, 63, 0.05);
    --color-accent-mid: rgba(255, 63, 63, 0.3);
    --color-border: rgba(26, 26, 26, 0.1);
    --color-border-med: rgba(26, 26, 26, 0.2);
    --color-invert-bg: #1A1A1A;
    --color-invert-text: #F8F8F8;
    --color-status-green: #22C55E;

    /* Typography */
    --font-headline: 'Big Shoulders Display', sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

    /* Spacing (8-point grid) */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */
    --space-40: 10rem;    /* 160px */

    /* Layout */
    --max-width: 1400px;
    --max-reading: 750px;
    --header-height: 80px;
    --grid-size: 40px;

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.8125rem;
    line-height: 1.6;
    text-transform: lowercase;
    background-image:
        linear-gradient(to right, rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: var(--grid-size) var(--grid-size);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-invert-text);
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    text-transform: uppercase;
    line-height: 0.85;
    font-weight: 900;
    letter-spacing: 0.08em;
}

h1 { font-size: clamp(3rem, 10vw, 12rem); }
h2 { font-size: clamp(2.5rem, 8vw, 9rem); }
h3 { font-size: clamp(1.5rem, 4vw, 4rem); }
h4 { font-size: clamp(1.2rem, 3vw, 3rem); }

p {
    max-width: 65ch;
}

.text-headline-massive {
    font-size: clamp(4rem, 12vw, 12rem);
    letter-spacing: -0.03em;
    line-height: 0.8;
}

.text-headline-large {
    font-size: clamp(2.5rem, 7vw, 9rem);
    letter-spacing: 0.1em;
}

.text-headline-ghost {
    font-weight: 100;
    opacity: 0.1;
    letter-spacing: -0.02em;
}

.text-headline-gradient {
    background: linear-gradient(to right, var(--color-text), transparent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-body-upper {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    line-height: 1.8;
    font-weight: 300;
}

.text-label {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* ==========================================================================
   4. ANNOTATION SYSTEM (Blueprint signature element)
   ========================================================================== */

.annotation {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 600;
}

.annotation-line {
    height: 1px;
    width: 2rem;
    background: var(--color-accent);
    margin-top: var(--space-2);
}

.wireframe-line {
    border: 1px solid var(--color-text);
    opacity: 0.3;
}

/* ==========================================================================
   5. LAYOUT UTILITIES
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

@media (min-width: 768px) {
    .container { padding-inline: var(--space-12); }
}

.section {
    padding-block: var(--space-32);
}

.section-border {
    border-top: 1px solid var(--color-border);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-16);
}

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
    .grid-12 {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: var(--space-12);
    }
}

/* ==========================================================================
   6. HEADER
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 248, 248, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-10) var(--space-6);
}

@media (min-width: 768px) {
    .site-header {
        padding: var(--space-10) var(--space-12);
    }
}

.site-header__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .site-header__inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

.site-title {
    font-family: var(--font-headline);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    line-height: 1;
    transform: scaleX(1.15);
    transform-origin: left;
}

.site-title a {
    transition: color var(--duration-fast) var(--ease-out);
}

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

/* Primary nav */
.primary-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-12);
    align-items: center;
    padding-top: var(--space-6);
}

@media (min-width: 768px) {
    .primary-nav { padding-top: 0; }
}

.primary-nav .menu {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-12);
    align-items: center;
}

.primary-nav .menu-item a {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    border-bottom: 1px solid transparent;
    transition: all var(--duration-fast) var(--ease-out);
    padding-bottom: var(--space-1);
}

.primary-nav .menu-item a:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.primary-nav .menu-item.cta-item a,
.nav-cta {
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: var(--space-1) var(--space-4);
    border-bottom: 1px solid var(--color-accent);
    transition: all var(--duration-normal) var(--ease-out);
}

.primary-nav .menu-item.cta-item a:hover,
.nav-cta:hover {
    background: var(--color-accent);
    color: var(--color-invert-text);
}

/* ==========================================================================
   7. HERO SECTION
   ========================================================================== */

.hero {
    position: relative;
    padding: var(--space-20) var(--space-6);
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero { padding: var(--space-20) var(--space-24); }
}

@media (min-width: 1024px) {
    .hero {
        padding: var(--space-40) var(--space-24);
        display: grid;
        grid-template-columns: 7fr 5fr;
        gap: var(--space-12);
        align-items: flex-start;
    }
}

.hero__decorative-circle {
    position: absolute;
    top: var(--space-20);
    right: var(--space-10);
    width: 16rem;
    height: 16rem;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    pointer-events: none;
    display: none;
}

.hero__decorative-diamond {
    position: absolute;
    top: var(--space-40);
    right: var(--space-20);
    width: 12rem;
    height: 12rem;
    border: 1px solid var(--color-border-med);
    transform: rotate(45deg);
    pointer-events: none;
    display: none;
}

@media (min-width: 1024px) {
    .hero__decorative-circle,
    .hero__decorative-diamond { display: block; }
}

.hero__content {
    position: relative;
    z-index: 10;
}

.hero__subtitle-bar {
    margin-bottom: var(--space-8);
}

.hero__headline {
    margin-bottom: var(--space-12);
}

.hero__headline span {
    display: block;
}

.hero__headline-offset {
    margin-left: var(--space-12);
    opacity: 0.5;
}

.hero__body {
    max-width: 28rem;
    margin-left: var(--space-4);
    border-left: 1px solid var(--color-border-med);
    padding-left: var(--space-8);
}

.hero__body p {
    font-size: 0.8125rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    line-height: 1.8;
}

.hero__actions {
    display: flex;
    gap: var(--space-8);
    padding-top: var(--space-8);
    flex-wrap: wrap;
}

/* Hero portrait frame */
.hero__portrait {
    position: relative;
    margin-top: var(--space-20);
}

@media (min-width: 1024px) {
    .hero__portrait {
        margin-top: 0;
        display: flex;
        justify-content: center;
    }
}

.hero__portrait-frame {
    position: relative;
    width: 100%;
    max-width: 26rem;
    aspect-ratio: 3 / 4;
    border: 1px solid var(--color-border-med);
    padding: var(--space-4);
}

.hero__portrait-frame::before {
    content: '';
    position: absolute;
    top: calc(var(--space-4) * -1);
    right: calc(var(--space-4) * -1);
    width: 3rem;
    height: 3rem;
    border-top: 1px solid var(--color-accent);
    border-right: 1px solid var(--color-accent);
}

.hero__portrait-frame::after {
    content: '';
    position: absolute;
    bottom: calc(var(--space-4) * -1);
    left: calc(var(--space-4) * -1);
    width: 3rem;
    height: 3rem;
    border-bottom: 1px solid var(--color-accent);
    border-left: 1px solid var(--color-accent);
}

.hero__portrait-image-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 26, 0.05);
    overflow: hidden;
}

.hero__portrait-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1) contrast(1.25) brightness(1.1);
    opacity: 0.3;
    transform: scale(1.5) rotate(-12deg) translate(10px, 10px);
    mix-blend-mode: multiply;
}

.hero__portrait-crosshair {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.hero__portrait-crosshair::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-text-ghost);
}

.hero__portrait-crosshair::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-text-ghost);
}

.hero__portrait-ref {
    font-size: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1em;
    color: var(--color-text-faint);
    transform: rotate(90deg);
    white-space: nowrap;
}

.hero__portrait-label {
    margin-top: var(--space-6);
}

/* ==========================================================================
   8. BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    padding: var(--space-4) var(--space-10);
    transition: all var(--duration-normal) var(--ease-out);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-text);
    color: var(--color-invert-text);
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-text);
    color: var(--color-text);
}

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-invert-text);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--color-border-med);
    color: var(--color-text);
    font-size: 0.625rem;
    padding: var(--space-1) var(--space-4);
}

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

.btn-full {
    width: 100%;
}

@media (min-width: 768px) {
    .btn-full { width: auto; }
}

/* ==========================================================================
   9. MODULE CARDS (Course taxonomy)
   ========================================================================== */

.modules-section {
    padding-block: var(--space-32);
    border-top: 1px solid var(--color-border);
}

.modules-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-24);
}

@media (min-width: 1024px) {
    .modules-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
    }
}

.modules-title-group {
    position: relative;
}

.modules-title-ghost {
    font-size: clamp(4rem, 10vw, 9rem);
    font-weight: 100;
    letter-spacing: -0.02em;
    opacity: 0.1;
    position: absolute;
    top: -0.75em;
    left: -0.25em;
}

.modules-title {
    position: relative;
    z-index: 10;
    letter-spacing: 0.15em;
}

.modules-filters {
    display: flex;
    gap: var(--space-4);
}

.modules-filter {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0;
    background: none;
    border: none;
    opacity: 0.3;
    cursor: pointer;
    transition: opacity var(--duration-fast) var(--ease-out);
    text-transform: lowercase;
}

.modules-filter:hover,
.modules-filter.active {
    opacity: 1;
}

.modules-filter.active {
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-accent);
}

/* Module card grid */
.modules-grid {
    display: grid;
    grid-template-columns: 1fr;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
    .modules-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .modules-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.module-card {
    position: relative;
    padding: var(--space-12);
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out);
    display: flex;
    flex-direction: column;
}

.module-card:hover {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
}

.module-card:nth-child(even) {
    background: rgba(26, 26, 26, 0.03);
}

.module-card:hover:nth-child(even) {
    background: var(--color-invert-bg);
}

.module-card__ref {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
}

.module-card__number {
    font-family: var(--font-headline);
    font-size: 4.5rem;
    font-weight: 100;
    opacity: 0.2;
    margin-bottom: var(--space-12);
    line-height: 1;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.module-card:hover .module-card__number {
    opacity: 1;
}

.module-card__title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: var(--space-6);
    letter-spacing: 0.12em;
}

.module-card__desc {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    line-height: 1.8;
    opacity: 0.6;
    flex-grow: 1;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.module-card:hover .module-card__desc {
    opacity: 1;
}

.module-card__footer {
    margin-top: var(--space-12);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color var(--duration-normal) var(--ease-out);
}

.module-card:hover .module-card__footer {
    border-top-color: rgba(255, 255, 255, 0.2);
}

.module-card__count {
    font-size: 0.625rem;
    font-weight: 700;
}

.module-card__arrow {
    font-size: 0.875rem;
}

/* Load more for 40+ categories */
.modules-load-more {
    text-align: center;
    padding: var(--space-16) 0;
}

/* ==========================================================================
   10. AFFILIATE / STACK SECTION
   ========================================================================== */

.affiliate-disclosure {
    border: 1px solid var(--color-accent-mid);
    padding: var(--space-8) var(--space-12);
    margin-bottom: var(--space-20);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
}

@media (min-width: 768px) {
    .affiliate-disclosure {
        flex-direction: row;
        justify-content: space-between;
    }
}

.affiliate-disclosure__badge {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.affiliate-disclosure__icon {
    color: var(--color-accent);
    font-size: 1.2rem;
}

.affiliate-disclosure__text {
    font-size: 0.625rem;
    max-width: 36rem;
    text-align: center;
    opacity: 0.5;
}

@media (min-width: 768px) {
    .affiliate-disclosure__text { text-align: left; }
}

.stack-header {
    margin-bottom: var(--space-20);
}

.stack-title-ghost {
    font-size: clamp(3rem, 8vw, 9rem);
    font-weight: 900;
    font-style: italic;
    letter-spacing: -0.02em;
    opacity: 0.1;
    line-height: 0.6;
}

.stack-title {
    font-size: clamp(2rem, 6vw, 7rem);
    letter-spacing: 0.12em;
    margin-top: -0.5em;
    margin-left: var(--space-4);
}

/* Affiliate grid */
.affiliate-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

@media (min-width: 1024px) {
    .affiliate-grid {
        grid-template-columns: 8fr 4fr;
    }
}

.affiliate-featured {
    background: var(--color-bg);
    padding: var(--space-8);
    position: relative;
    overflow: hidden;
}

@media (min-width: 768px) {
    .affiliate-featured { padding: var(--space-16); }
}

.affiliate-featured__circle {
    position: absolute;
    right: -5rem;
    top: -5rem;
    width: 20rem;
    height: 20rem;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    pointer-events: none;
}

.affiliate-featured__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-20);
}

.affiliate-featured__icon {
    padding: var(--space-6);
    border: 1px solid var(--color-border);
    background: rgba(26, 26, 26, 0.05);
}

.affiliate-featured__icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.affiliate-featured__promo {
    text-align: right;
}

.affiliate-featured__promo-code {
    font-family: var(--font-headline);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-accent);
    letter-spacing: 0.12em;
}

.affiliate-featured__title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    margin-bottom: var(--space-8);
    letter-spacing: -0.02em;
}

.affiliate-featured__body {
    font-size: 0.8125rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    line-height: 1.8;
    max-width: 32rem;
    margin-bottom: var(--space-12);
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-8);
}

/* Affiliate side items */
.affiliate-sidebar {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
}

.affiliate-item {
    padding: var(--space-12);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--duration-fast) var(--ease-out);
}

.affiliate-item:hover {
    background: rgba(26, 26, 26, 0.03);
}

.affiliate-item--highlight {
    background: var(--color-accent-soft);
}

.affiliate-item__title {
    font-size: 1.8rem;
    margin-bottom: var(--space-4);
    letter-spacing: 0.08em;
}

.affiliate-item__discount {
    font-size: 0.625rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

/* Additional affiliate row for more tools */
.affiliate-extra-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    margin-top: var(--space-16);
}

@media (min-width: 768px) {
    .affiliate-extra-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.affiliate-extra-item {
    background: var(--color-bg);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.affiliate-extra-item:hover {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
}

.affiliate-extra-item__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
}

.affiliate-extra-item__name {
    font-family: var(--font-headline);
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-2);
}

.affiliate-extra-item__category {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.15em;
}

/* ==========================================================================
   11. CONTENT HUB (Taxonomy archive)
   ========================================================================== */

.content-hub {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 100vh;
}

@media (min-width: 1024px) {
    .content-hub {
        grid-template-columns: 320px 1fr;
    }
}

.content-hub__sidebar {
    padding: var(--space-8);
    border-right: 1px solid var(--color-border);
}

@media (min-width: 1024px) {
    .content-hub__sidebar {
        position: sticky;
        top: var(--header-height);
        height: calc(100vh - var(--header-height));
        overflow-y: auto;
        padding: var(--space-12);
    }
}

.sidebar-module {
    border-bottom: 1px solid var(--color-border);
}

.sidebar-module__trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: var(--space-4) 0;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    background: none;
    border: none;
    color: inherit;
    transition: color var(--duration-fast) var(--ease-out);
}

.sidebar-module__trigger:hover,
.sidebar-module__trigger.active {
    color: var(--color-accent);
}

.sidebar-module__posts {
    padding: 0 0 var(--space-4) var(--space-4);
    display: none;
}

.sidebar-module__posts.open {
    display: block;
}

.sidebar-module__post-link {
    display: block;
    padding: var(--space-2) 0;
    font-size: 0.625rem;
    opacity: 0.6;
    transition: all var(--duration-fast) var(--ease-out);
}

.sidebar-module__post-link:hover {
    opacity: 1;
    color: var(--color-accent);
    padding-left: var(--space-2);
}

.content-hub__main {
    padding: var(--space-12);
}

@media (min-width: 768px) {
    .content-hub__main { padding: var(--space-16) var(--space-24); }
}

/* Article list items */
.article-item {
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--color-border);
    transition: padding-left var(--duration-fast) var(--ease-out);
}

.article-item:hover {
    padding-left: var(--space-4);
}

.article-item__title {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-2);
    line-height: 1.2;
}

.article-item__title a {
    transition: color var(--duration-fast) var(--ease-out);
}

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

.article-item__meta {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.article-item__excerpt {
    margin-top: var(--space-3);
    font-size: 0.75rem;
    opacity: 0.7;
    max-width: 50ch;
    line-height: 1.7;
}

/* ==========================================================================
   12. SINGLE POST (Distraction-free reading)
   ========================================================================== */

.single-post-content {
    max-width: var(--max-reading);
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
}

@media (min-width: 768px) {
    .single-post-content {
        padding: var(--space-24) var(--space-6);
    }
}

.single-post-content .entry-title {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: var(--space-4);
    letter-spacing: 0.06em;
    line-height: 0.95;
}

.single-post-content .entry-meta {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
}

.single-post-content .entry-body {
    font-size: 1rem;
    line-height: 1.85;
    text-transform: none;
    font-weight: 300;
}

.single-post-content .entry-body h2 {
    font-size: 1.5rem;
    margin: var(--space-12) 0 var(--space-6);
    letter-spacing: 0.06em;
    line-height: 1.1;
}

.single-post-content .entry-body h3 {
    font-size: 1.15rem;
    margin: var(--space-8) 0 var(--space-4);
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.single-post-content .entry-body p {
    margin-bottom: var(--space-6);
    max-width: none;
}

.single-post-content .entry-body ul,
.single-post-content .entry-body ol {
    margin: var(--space-4) 0 var(--space-6) var(--space-6);
}

.single-post-content .entry-body li {
    margin-bottom: var(--space-2);
    list-style: disc;
}

.single-post-content .entry-body ol li {
    list-style: decimal;
}

.single-post-content .entry-body blockquote {
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-8) 0;
    font-style: italic;
    opacity: 0.8;
}

.single-post-content .entry-body img {
    margin: var(--space-8) 0;
    border: 1px solid var(--color-border);
}

.single-post-content .entry-body a {
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-accent-mid);
    transition: border-color var(--duration-fast) var(--ease-out);
}

.single-post-content .entry-body a:hover {
    border-bottom-color: var(--color-accent);
}

.single-post-content .entry-body code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: rgba(26,26,26,0.05);
    padding: 0.15em 0.4em;
}

.single-post-content .entry-body pre {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
    padding: var(--space-6);
    overflow-x: auto;
    margin: var(--space-8) 0;
    font-size: 0.8125rem;
    line-height: 1.6;
}

.single-post-content .entry-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Post navigation */
.post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-top: var(--space-16);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.post-nav__item {
    padding: var(--space-6);
    border: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out);
}

.post-nav__item:hover {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
    border-color: var(--color-invert-bg);
}

.post-nav__label {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.post-nav__title {
    font-family: var(--font-headline);
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 1.2;
}

.post-nav__item--next {
    text-align: right;
}

/* ==========================================================================
   13. FOOTER
   ========================================================================== */

.site-footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--space-32) var(--space-6) var(--space-20);
    position: relative;
    overflow: hidden;
}

@media (min-width: 768px) {
    .site-footer {
        padding: var(--space-32) var(--space-12) var(--space-20);
    }
}

/* Vertical decorative lines */
.site-footer::before,
.site-footer::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-border);
    pointer-events: none;
}

.site-footer::before { left: 25%; }
.site-footer::after { left: 50%; }

.footer-line-75 {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 75%;
    width: 1px;
    background: var(--color-border);
    pointer-events: none;
}

.footer-grid {
    position: relative;
    z-index: 10;
}

/* Footer brand */
.footer-brand__title {
    font-size: 1.8rem;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-8);
    line-height: 1.1;
}

.footer-brand__desc {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    line-height: 1.8;
    opacity: 0.6;
    margin-bottom: var(--space-12);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social__link {
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--duration-fast) var(--ease-out);
}

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

/* Footer company details */
.footer-entity-item {
    margin-bottom: var(--space-6);
}

.footer-entity-label {
    font-size: 0.625rem;
    opacity: 0.4;
    margin-bottom: var(--space-1);
    letter-spacing: 0.12em;
}

.footer-entity-value {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.footer-entity-value--accent {
    color: var(--color-accent);
}

/* Footer legal menu */
.footer-legal-menu .menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-legal-menu .menu-item a {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-legal-menu .menu-item a:hover {
    color: var(--color-accent);
}

/* Footer system status */
.footer-status {
    border: 1px solid var(--color-border);
    padding: var(--space-6);
    background: var(--color-surface);
}

.footer-status__indicator {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-status__dot {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--color-status-green);
    animation: pulse 2s infinite;
}

.footer-status__label {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.footer-status__sub {
    margin-top: var(--space-4);
    font-size: 0.5rem;
    opacity: 0.3;
    font-weight: 700;
    text-transform: uppercase;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Footer bottom bar */
.footer-bottom {
    margin-top: var(--space-32);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
    font-size: 0.5625rem;
    letter-spacing: 0.3em;
    font-weight: 700;
    opacity: 0.4;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom__taglines {
    display: flex;
    gap: var(--space-8);
    color: var(--color-accent);
}

/* ==========================================================================
   14. PAGINATION
   ========================================================================== */

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    padding-top: var(--space-12);
}

.pagination .page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    border: 1px solid var(--color-border);
    transition: all var(--duration-fast) var(--ease-out);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
    border-color: var(--color-invert-bg);
}

/* ==========================================================================
   15. 404 PAGE
   ========================================================================== */

.error-404 {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-20);
}

.error-404__code {
    font-family: var(--font-headline);
    font-size: clamp(6rem, 20vw, 20rem);
    font-weight: 100;
    opacity: 0.1;
    line-height: 0.8;
}

.error-404__message {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    opacity: 0.5;
    margin: var(--space-8) 0 var(--space-12);
}

/* ==========================================================================
   16. SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }
.reveal-delay-5 { transition-delay: 500ms; }
.reveal-delay-6 { transition-delay: 600ms; }

/* ==========================================================================
   17. REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   18. WORDPRESS SPECIFIC
   ========================================================================== */

.alignwide {
    max-width: calc(var(--max-reading) + 200px);
    margin-inline: auto;
}

.alignfull {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.wp-block-image {
    margin: var(--space-8) 0;
}

.wp-block-image img {
    border: 1px solid var(--color-border);
}

/* Screen reader text */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute !important;
    width: 1px;
    word-wrap: normal !important;
}

/* ==========================================================================
   19. COOKIE CONSENT BANNER
   ========================================================================== */

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
    border-top: 2px solid var(--color-accent);
    padding: var(--space-8) var(--space-6);
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out);
}

.cookie-banner.visible {
    transform: translateY(0);
}

.cookie-banner__inner {
    max-width: var(--max-width);
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: flex-start;
}

@media (min-width: 768px) {
    .cookie-banner {
        padding: var(--space-8) var(--space-12);
    }

    .cookie-banner__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.cookie-banner__text {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1.8;
    max-width: 50rem;
    opacity: 0.8;
}

.cookie-banner__text a {
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-accent-mid);
    transition: border-color var(--duration-fast) var(--ease-out);
}

.cookie-banner__text a:hover {
    border-bottom-color: var(--color-accent);
}

.cookie-banner__actions {
    display: flex;
    gap: var(--space-4);
    flex-shrink: 0;
}

.cookie-banner__btn {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: var(--space-3) var(--space-8);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    border: none;
}

.cookie-banner__btn--accept {
    background: var(--color-accent);
    color: var(--color-invert-text);
}

.cookie-banner__btn--accept:hover {
    background: #E63636;
}

.cookie-banner__btn--necessary {
    background: transparent;
    border: 1px solid rgba(248, 248, 248, 0.3);
    color: var(--color-invert-text);
}

.cookie-banner__btn--necessary:hover {
    border-color: var(--color-invert-text);
}

/* ==========================================================================
   20. BLOG SIDEBAR
   ========================================================================== */

.blog-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
}

@media (min-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr 300px;
        gap: var(--space-16);
    }
}

.blog-layout__content {
    min-width: 0;
}

.blog-sidebar {
    padding-top: var(--space-8);
}

@media (min-width: 1024px) {
    .blog-sidebar {
        position: sticky;
        top: calc(var(--header-height) + var(--space-8));
        align-self: start;
        padding-top: 0;
    }
}

.blog-sidebar .widget {
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--color-border);
}

.blog-sidebar .widget:last-child {
    border-bottom: none;
}

.blog-sidebar .widget-title,
.blog-sidebar .wp-block-heading {
    font-family: var(--font-headline);
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-6);
    line-height: 1.2;
}

.blog-sidebar .widget ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.blog-sidebar .widget ul li {
    list-style: none;
}

.blog-sidebar .widget ul li a {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.6;
    transition: all var(--duration-fast) var(--ease-out);
    display: block;
    padding: var(--space-1) 0;
}

.blog-sidebar .widget ul li a:hover {
    opacity: 1;
    color: var(--color-accent);
    padding-left: var(--space-2);
}

.blog-sidebar .widget p,
.blog-sidebar .widget .textwidget {
    font-size: 0.75rem;
    text-transform: none;
    line-height: 1.7;
    opacity: 0.7;
}

/* Sidebar affiliate mini card */
.sidebar-affiliate {
    border: 1px solid var(--color-border);
    padding: var(--space-6);
    transition: all var(--duration-normal) var(--ease-out);
    margin-bottom: var(--space-6);
}

.sidebar-affiliate:hover {
    background: var(--color-invert-bg);
    color: var(--color-invert-text);
    border-color: var(--color-invert-bg);
}

.sidebar-affiliate__title {
    font-family: var(--font-headline);
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-2);
    line-height: 1.2;
}

.sidebar-affiliate__cat {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-4);
}

/* ==========================================================================
   21. LEGAL PAGES
   ========================================================================== */

.legal-page {
    max-width: var(--max-reading);
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
}

@media (min-width: 768px) {
    .legal-page {
        padding: var(--space-24) var(--space-6);
    }
}

.legal-page .legal-title {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: var(--space-4);
    letter-spacing: 0.06em;
    line-height: 0.95;
}

.legal-page .legal-meta {
    font-size: 0.5625rem;
    opacity: 0.4;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
}

.legal-page .legal-body {
    font-size: 0.875rem;
    line-height: 1.85;
    text-transform: none;
    font-weight: 300;
}

.legal-page .legal-body h2 {
    font-size: 1.4rem;
    margin: var(--space-12) 0 var(--space-6);
    letter-spacing: 0.06em;
    line-height: 1.1;
}

.legal-page .legal-body h3 {
    font-size: 1.1rem;
    margin: var(--space-8) 0 var(--space-4);
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.legal-page .legal-body p {
    margin-bottom: var(--space-6);
    max-width: none;
}

.legal-page .legal-body ul,
.legal-page .legal-body ol {
    margin: var(--space-4) 0 var(--space-6) var(--space-6);
}

.legal-page .legal-body li {
    margin-bottom: var(--space-2);
    list-style: disc;
    line-height: 1.7;
}

.legal-page .legal-body ol li {
    list-style: decimal;
}

.legal-page .legal-body a {
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-accent-mid);
    transition: border-color var(--duration-fast) var(--ease-out);
}

.legal-page .legal-body a:hover {
    border-bottom-color: var(--color-accent);
}

.legal-page .legal-body strong {
    font-weight: 600;
}

.legal-page .legal-body table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    font-size: 0.8125rem;
}

.legal-page .legal-body th,
.legal-page .legal-body td {
    border: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4);
    text-align: left;
}

.legal-page .legal-body th {
    background: rgba(26, 26, 26, 0.03);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.6875rem;
}

/* ==========================================================================
   22. CONTACT PAGE
   ========================================================================== */

.contact-page {
    max-width: var(--max-reading);
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
}

@media (min-width: 768px) {
    .contact-page {
        padding: var(--space-24) var(--space-6);
    }
}

.contact-card {
    border: 1px solid var(--color-border-med);
    padding: var(--space-12);
    margin-top: var(--space-12);
    position: relative;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: calc(var(--space-4) * -1);
    right: calc(var(--space-4) * -1);
    width: 2rem;
    height: 2rem;
    border-top: 1px solid var(--color-accent);
    border-right: 1px solid var(--color-accent);
}

.contact-card::after {
    content: '';
    position: absolute;
    bottom: calc(var(--space-4) * -1);
    left: calc(var(--space-4) * -1);
    width: 2rem;
    height: 2rem;
    border-bottom: 1px solid var(--color-accent);
    border-left: 1px solid var(--color-accent);
}

.contact-card__email {
    font-family: var(--font-headline);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 1.2;
    transition: color var(--duration-fast) var(--ease-out);
    display: inline-block;
    margin-bottom: var(--space-4);
}

.contact-card__email:hover {
    color: var(--color-accent);
}

.contact-response-time {
    border: 1px solid var(--color-border);
    padding: var(--space-6);
    margin-top: var(--space-16);
    background: var(--color-surface);
}

.contact-response-time__header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.contact-response-time__dot {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--color-status-green);
    animation: pulse 2s infinite;
}