/* JANUARY-BUILD V3 HYBRID - Credibility Aesthetic */
/* ==========================================================================
   Mullo Saint Research - Shared Styles
   Version: 2.0.0
   ========================================================================== */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
    /* Colors - Light Mode */
    --color-bg: #fafafa;
    --color-bg-surface: #ffffff;
    --color-bg-elevated: #ffffff;
    --color-text: #111827;
    --color-text-secondary: #374151;
    --color-text-tertiary: rgba(27, 26, 23, 0.5);
    --color-text-quaternary: rgba(27, 26, 23, 0.32);
    --color-accent: #0f766e;
    --color-accent-hover: #0d7377;
    --color-accent-subtle: rgba(198, 90, 46, 0.12);
    --color-hairline: #ded6c8;
    --color-hairline-strong: #b8b0a3;
    --color-success: #1f8a5b;
    --color-success-subtle: rgba(31, 138, 91, 0.1);
    --color-warning: #c77b1b;
    --color-warning-subtle: rgba(199, 123, 27, 0.12);
    --color-info: #1c5d7d;
    --color-info-subtle: rgba(28, 93, 125, 0.12);
    --color-bg-header: rgba(243, 239, 232, 0.92);
    --color-aurora-1: rgba(198, 90, 46, 0.18);
    --color-aurora-2: rgba(28, 93, 125, 0.14);
    --color-aurora-3: rgba(33, 114, 86, 0.12);
    --color-bg-linear: rgba(255, 255, 255, 0.55);
    --color-bg-linear-fade: rgba(255, 255, 255, 0);

    /* Typography */
    --font-sans: 'Space Grotesk', 'Segoe UI', Arial, sans-serif;
    --font-display: 'Fraunces', 'Times New Roman', serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.6875rem, 0.65rem + 0.1vw, 0.75rem);
    --text-sm: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
    --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
    --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 0.8vw, 2rem);
    --text-3xl: clamp(2rem, 1.6rem + 1.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 2vw, 4rem);
    --text-5xl: clamp(3rem, 2.2rem + 3vw, 5.5rem);

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.65;
    --leading-loose: 1.8;

    /* Letter Spacing */
    --tracking-tighter: -0.03em;
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.02em;
    --tracking-wider: 0.05em;
    --tracking-widest: 0.1em;

    /* Spacing Scale */
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
    --space-5: 3rem;
    --space-6: 4rem;
    --space-7: 6rem;
    --space-8: 8rem;

    /* Layout */
    --max-width-xs: 20rem;
    --max-width-sm: 24rem;
    --max-width-md: 28rem;
    --max-width-lg: 32rem;
    --max-width-xl: 36rem;
    --max-width-2xl: 42rem;
    --max-width-3xl: 48rem;
    --max-width-4xl: 56rem;
    --max-width-5xl: 64rem;
    --max-width-6xl: 72rem;
    --max-width-7xl: 80rem;
    --max-width-content: 58rem;
    --max-width-container: 90rem;

    /* Borders */
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index Scale */
    --z-below: -1;
    --z-base: 0;
    --z-raised: 10;
    --z-dropdown: 50;
    --z-sticky: 100;
    --z-overlay: 200;
    --z-modal: 300;
    --z-toast: 400;
    --z-max: 9999;
}

/* Dark Mode Colors */
.dark {
    --color-bg: #0f1110;
    --color-bg-surface: #151815;
    --color-bg-elevated: #1d211d;
    --color-text: #f4efe7;
    --color-text-secondary: rgba(244, 239, 231, 0.72);
    --color-text-tertiary: rgba(244, 239, 231, 0.52);
    --color-text-quaternary: rgba(244, 239, 231, 0.32);
    --color-accent: #ff7a45;
    --color-accent-hover: #ff5f1f;
    --color-accent-subtle: rgba(255, 122, 69, 0.16);
    --color-hairline: #262b26;
    --color-hairline-strong: #3b433a;
    --color-success: #4fb386;
    --color-warning: #e3a24c;
    --color-info: #5aa0c1;
    --color-success-subtle: rgba(79, 179, 134, 0.18);
    --color-warning-subtle: rgba(227, 162, 76, 0.18);
    --color-info-subtle: rgba(90, 160, 193, 0.18);
    --color-bg-header: rgba(15, 17, 16, 0.86);
    --color-aurora-1: rgba(255, 122, 69, 0.15);
    --color-aurora-2: rgba(90, 160, 193, 0.12);
    --color-aurora-3: rgba(79, 179, 134, 0.1);
    --color-bg-linear: rgba(15, 17, 16, 0.35);
    --color-bg-linear-fade: rgba(15, 17, 16, 0);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
    tab-size: 4;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image:
        radial-gradient(1200px 700px at 8% -10%, var(--color-aurora-1), transparent 60%),
        radial-gradient(900px 700px at 92% 0%, var(--color-aurora-2), transparent 58%),
        radial-gradient(900px 500px at 50% 110%, var(--color-aurora-3), transparent 65%),
        linear-gradient(180deg, var(--color-bg-linear), var(--color-bg-linear-fade) 35%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-2);
    z-index: var(--z-max);
    padding: var(--space-2) var(--space-3);
    background: var(--color-text);
    color: var(--color-bg);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-2);
    outline: none;
}

/* Focus Styles */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@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;
    }
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text);
}

.display {
    font-size: var(--text-5xl);
    line-height: 0.92;
    font-weight: 600;
    letter-spacing: var(--tracking-tighter);
    font-variation-settings: 'opsz' 48;
}

.h1 {
    font-size: var(--text-4xl);
    line-height: 1.05;
    font-weight: 600;
    letter-spacing: var(--tracking-tighter);
    font-variation-settings: 'opsz' 36;
}

.h2 {
    font-size: var(--text-2xl);
    line-height: var(--leading-snug);
    font-weight: 600;
    letter-spacing: var(--tracking-tight);
    font-variation-settings: 'opsz' 24;
}

.h3 {
    font-size: var(--text-lg);
    line-height: var(--leading-snug);
    font-weight: 600;
}

.body-lg {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
}

.body-sm {
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
}

.meta {
    font-size: var(--text-xs);
    line-height: 1.4;
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.caption {
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--color-text-tertiary);
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Motion
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 500ms ease, transform 500ms ease;
}

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

.reveal-delay-1 { transition-delay: 80ms; animation-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; animation-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; animation-delay: 240ms; }

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(22px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Text Colors */
.text-accent { color: var(--color-accent); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--max-width-container);
    margin-inline: auto;
    padding-inline: var(--space-3);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-5);
    }
}

.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-3);
}

@media (min-width: 768px) {
    .grid {
        gap: var(--space-4);
    }
}

/* ==========================================================================
   Header
   ========================================================================== */
.header,
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-bg-header);
    border-bottom: 1px solid var(--color-hairline);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-text);
    text-decoration: none;
}

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

.site-nav {
    display: none;
}

@media (min-width: 768px) {
    .site-nav {
        display: block;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    list-style: none;
}

.nav-list a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    position: relative;
    padding-bottom: 0.25rem;
    transition: color var(--transition-fast);
}

.nav-list a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.nav-list a:hover {
    color: var(--color-text);
}

.nav-list a:hover::after {
    width: 100%;
}

.nav-list a.active {
    color: var(--color-text);
}

.nav-list a.active::after {
    width: 100%;
}

.nav-cta {
    color: var(--color-accent);
    font-weight: 600;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--color-hairline);
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--color-text);
    border-color: var(--color-hairline-strong);
    box-shadow: var(--shadow-sm);
}

.mobile-menu-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--color-hairline);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    cursor: pointer;
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.hamburger-line {
    width: 1rem;
    height: 2px;
    background: var(--color-text-secondary);
    border-radius: var(--radius-full);
}

/* Mobile menu is defined in Mobile Menu section below */

@supports (backdrop-filter: blur(10px)) {
    .header {
        background: var(--color-bg-header);
    }
    .dark .header {
        background: var(--color-bg-header);
    }
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3.5rem;
}

@media (min-width: 768px) {
    .header-inner {
        height: 4rem;
    }
}

.logo {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: 0.01em;
    transition: color var(--transition-fast);
}

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

/* Navigation */
.nav {
    display: none;
    align-items: center;
    gap: var(--space-5);
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-decoration: none;
    padding: var(--space-1) 0;
    position: relative;
    transition: color var(--transition-fast);
    letter-spacing: 0.01em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--color-text);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--color-text);
}

.nav-link.active::after {
    width: 100%;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* Icon Button */
.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: none;
    background: transparent;
    color: var(--color-text-tertiary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.icon-btn:hover {
    color: var(--color-text);
    background: var(--color-hairline);
}

.icon-btn svg {
    width: 1.125rem;
    height: 1.125rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* ==========================================================================
   Mobile Menu
   ========================================================================== */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: var(--z-overlay);
    padding: var(--space-4);
    display: none;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-menu.open,
.mobile-menu.is-open {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-hairline);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding-top: var(--space-4);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid var(--color-hairline);
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-accent);
}

.mobile-nav-link .vol {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-weight: 500;
    letter-spacing: 0.04em;
}

/* ==========================================================================
   Search
   ========================================================================== */
.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(11, 13, 14, 0.4);
    z-index: var(--z-modal);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 7.5rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.dark .search-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.search-overlay.open {
    display: flex;
    opacity: 1;
}

.search-modal {
    width: 100%;
    max-width: 35rem;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 0 var(--space-3);
    box-shadow: var(--shadow-xl);
    transform: translateY(-10px);
    transition: transform var(--transition-normal);
}

.search-overlay.open .search-modal {
    transform: translateY(0);
}

.search-input-wrap {
    display: flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-hairline);
}

.search-input-wrap svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    background: none;
    font-size: var(--text-base);
    padding: var(--space-1) var(--space-2);
    color: var(--color-text);
    outline: none;
    font-family: var(--font-sans);
}

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

.search-results {
    max-height: 25rem;
    overflow-y: auto;
}

.search-result {
    display: block;
    padding: var(--space-2) var(--space-3);
    text-decoration: none;
    border-bottom: 1px solid var(--color-hairline);
    transition: background var(--transition-fast);
}

.search-result:hover {
    background: var(--color-hairline);
}

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

.search-result-title {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.search-result-meta {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.search-empty {
    padding: var(--space-4);
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

.search-kbd {
    display: none;
    padding: 0.125rem 0.375rem;
    background: var(--color-hairline);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-family: var(--font-sans);
    color: var(--color-text-tertiary);
}

@media (min-width: 768px) {
    .search-kbd {
        display: inline;
    }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    padding: 1rem 1.75rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn svg {
    width: 0.875rem;
    height: 0.875rem;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(3px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), #e07a3f);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(198, 90, 46, 0.18);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), #d86f39);
    color: white;
}

.btn-secondary {
    background: var(--color-accent);
    color: white;
}

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

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

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

.btn-meta {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-weight: 400;
}

.btn-text {
    background: none;
    padding: 0;
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: none;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-hairline-strong);
    padding-bottom: 2px;
    border-radius: 0;
}

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

.btn-sm {
    padding: 0.625rem 1rem;
    font-size: 0.6875rem;
}

.btn-lg {
    padding: 1.125rem 2rem;
    font-size: var(--text-sm);
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-hairline);
    padding: var(--space-4);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
    border-color: var(--color-hairline-strong);
}

.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

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

/* ==========================================================================
   Tags
   ========================================================================== */
.tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    padding: 0.3125rem 0.625rem;
    background: var(--color-hairline);
    color: var(--color-text-tertiary);
}

.tag-success {
    background: var(--color-success-subtle);
    color: var(--color-success);
    border: 1px solid rgba(15, 157, 88, 0.25);
}

.tag-warning {
    background: var(--color-warning-subtle);
    color: var(--color-warning);
    border: 1px solid rgba(217, 119, 6, 0.25);
}

.tag-accent {
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    border: 1px solid rgba(211, 47, 47, 0.25);
}

/* ==========================================================================
   Status Badges
   ========================================================================== */
.status {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    padding: 0.25rem 0.625rem;
    background: transparent;
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.status-review {
    border-color: var(--color-hairline-strong);
    color: var(--color-text-tertiary);
}

.status-draft {
    border-color: var(--color-warning);
    color: var(--color-warning);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
    margin-bottom: var(--space-5);
}

.section-header-inner {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-hairline-strong);
    position: relative;
}

.section-header-inner::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 6rem;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.section-count {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-weight: 500;
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

/* Swiss Section Numbers */
.section-num {
    font-size: clamp(3.5rem, 8vw, 5rem);
    font-weight: 600;
    line-height: 0.85;
    letter-spacing: var(--tracking-tighter);
    color: rgba(27, 26, 23, 0.18);
    margin-bottom: var(--space-2);
}

.dark .section-num {
    color: rgba(244, 239, 231, 0.16);
}

/* ==========================================================================
   Callouts & Alerts
   ========================================================================== */
.callout {
    padding: var(--space-4);
    border-left: 2px solid var(--color-text);
    background: transparent;
    margin: var(--space-4) 0;
}

.callout-label {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-2);
}

.callout-text {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

.callout-success {
    border-left-color: var(--color-success);
}

.callout-warning {
    border-left-color: var(--color-warning);
    background: var(--color-warning-subtle);
}

.callout-info {
    border-left-color: var(--color-info);
    background: var(--color-info-subtle);
}

/* ==========================================================================
   Disclaimer
   ========================================================================== */
.disclaimer {
    background: transparent;
    border-top: 1px solid var(--color-hairline);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--space-4) 0;
    display: flex;
    gap: var(--space-4);
}

.disclaimer-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
    margin-top: 2px;
}

.disclaimer-title {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-2);
}

.disclaimer-text {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
    max-width: var(--max-width-content);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--color-hairline);
    padding: var(--space-7) 0 var(--space-6);
    margin-top: var(--space-7);
}

.footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-7);
}

.footer-prev,
.footer-next {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    text-decoration: none;
}

.footer-label {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--color-text-tertiary);
}

.footer-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: var(--tracking-tight);
}

.footer-link svg {
    width: 1.125rem;
    height: 1.125rem;
    color: var(--color-text-tertiary);
    transition: transform var(--transition-fast);
}

.footer-next:hover .footer-link svg {
    transform: translateX(4px);
}

.footer-prev:hover .footer-link svg {
    transform: translateX(-4px);
}

.footer-prev.disabled {
    opacity: 0.25;
    pointer-events: none;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-hairline);
}

.footer-brand {
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    color: var(--color-text-tertiary);
    margin-bottom: 0.375rem;
}

.footer-copy {
    font-size: var(--text-xs);
    color: var(--color-text-quaternary);
    letter-spacing: 0.01em;
}

/* ==========================================================================
   Back to Top
   ========================================================================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-4);
    right: var(--space-4);
    width: 2.75rem;
    height: 2.75rem;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-hairline);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal), background var(--transition-fast);
    z-index: var(--z-raised);
    border-radius: var(--radius-sm);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-hairline);
}

.back-to-top svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-text);
}

/* ==========================================================================
   Reading Progress
   ========================================================================== */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    z-index: var(--z-max);
    transition: width 100ms linear;
}

/* ==========================================================================
   Prose / Article Content
   ========================================================================== */
.prose {
    max-width: var(--max-width-content);
}

.prose h2 {
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: var(--tracking-tight);
    color: var(--color-text);
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-hairline);
}

.prose h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.prose h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

.prose p {
    font-size: var(--text-base);
    line-height: var(--leading-loose);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.prose p.lead {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
}

.prose ul,
.prose ol {
    margin-bottom: var(--space-3);
    padding-left: var(--space-3);
}

.prose li {
    font-size: var(--text-base);
    line-height: var(--leading-loose);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-1);
}

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

.prose a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.prose a:hover {
    text-decoration: none;
}

.prose blockquote {
    padding-left: var(--space-3);
    border-left: 2px solid var(--color-hairline-strong);
    font-style: italic;
    color: var(--color-text-tertiary);
    margin: var(--space-4) 0;
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 0.125rem 0.375rem;
    background: var(--color-hairline);
    border-radius: var(--radius-sm);
}

.prose pre {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    padding: var(--space-3);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-hairline);
    overflow-x: auto;
    margin: var(--space-4) 0;
    border-radius: var(--radius-md);
}

.prose pre code {
    padding: 0;
    background: none;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

/* Spacing */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flex Utilities */
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.flex-col { flex-direction: column; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]::after {
        content: " (" attr(href) ")";
    }

    abbr[title]::after {
        content: " (" attr(title) ")";
    }

    a[href^="#"]::after,
    a[href^="javascript:"]::after {
        content: "";
    }

    pre {
        white-space: pre-wrap !important;
    }

    pre,
    blockquote {
        border: 1px solid #999;
        page-break-inside: avoid;
    }

    thead {
        display: table-header-group;
    }

    tr,
    img {
        page-break-inside: avoid;
    }

    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }

    h2,
    h3 {
        page-break-after: avoid;
    }

    .header,
    .footer,
    .nav,
    .mobile-menu,
    .back-to-top,
    .search-overlay,
    .reading-progress {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }
}

/* ==========================================================================
   Signal Card
   ========================================================================== */
.signal-card {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-hairline-strong);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.signal-meta {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.signal-value {
    font-size: var(--text-xl);
    font-family: var(--font-display);
    letter-spacing: var(--tracking-tight);
}

.signal-note {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* ==========================================================================
   Loading State
   ========================================================================== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-hairline) 25%,
        var(--color-hairline-strong) 50%,
        var(--color-hairline) 75%
    );
    background-size: 200% 100%;
    
    border-radius: var(--radius-sm);
}