/*
Theme Name: K1dev Theme
Theme URI: http://localhost
Author: K1
Description: Personal tech portfolio for K1 — projects, AI, learnings, e-learnings. Dark mode, neon accents, terminal aesthetic.
Version: 2.0.0
Text Domain: k1dev-theme
*/

/* ========================================
   CSS Custom Properties — Design System
   ======================================== */
:root {
    /* --- Dark Background Palette --- */
    --color-bg:           #0a0e1a;
    --color-bg-secondary: #0f1628;
    --color-bg-tertiary:  #141c35;
    --color-bg-card:      #111827;
    --color-bg-elevated:  #1a2340;

    /* --- Neon Accent Colors --- */
    --color-primary:      #00d4ff;   /* cyan */
    --color-primary-dim:  #00a3c7;
    --color-secondary:    #7c3aed;   /* purple */
    --color-secondary-dim:#5b21b6;
    --color-accent:       #06d6a0;   /* green */
    --color-accent-dim:   #04a87d;
    --color-warning:      #f59e0b;
    --color-danger:       #ef4444;

    /* --- Glow Effects --- */
    --glow-primary:   0 0 20px rgba(0, 212, 255, 0.35);
    --glow-secondary: 0 0 20px rgba(124, 58, 237, 0.35);
    --glow-accent:    0 0 20px rgba(6, 214, 160, 0.35);

    /* --- Text Colors --- */
    --color-text:         #e2e8f0;
    --color-text-muted:   #94a3b8;
    --color-text-faint:   #475569;
    --color-text-heading: #f1f5f9;
    --color-text-code:    #00d4ff;

    /* --- Borders --- */
    --color-border:       rgba(255, 255, 255, 0.08);
    --color-border-dim:   rgba(255, 255, 255, 0.04);
    --color-border-accent:rgba(0, 212, 255, 0.25);

    /* --- Typography --- */
    --font-body:    'Inter', 'Space Grotesk', system-ui, -apple-system, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', 'Fira Code', 'Fira Mono', 'SF Mono', monospace;

    /* --- Type Scale --- */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;
    --text-4xl:  2.25rem;
    --text-5xl:  3rem;
    --text-6xl:  3.75rem;

    /* --- Spacing Scale --- */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* --- Layout --- */
    --container-max:   1200px;
    --container-wide:  1400px;
    --container-narrow: 800px;

    /* --- Border Radius --- */
    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;
    --radius-full: 9999px;

    /* --- Transitions --- */
    --transition-fast:   100ms ease;
    --transition:        200ms ease;
    --transition-slow:   400ms ease;
    --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* --- Z-index Layers --- */
    --z-below:   -1;
    --z-base:     0;
    --z-above:   10;
    --z-header: 100;
    --z-modal:  200;
    --z-toast:  300;

    /* --- Terminal Colors (xterm palette) --- */
    --term-bg:      #0d1117;
    --term-text:    #c9d1d9;
    --term-prompt:  #00d4ff;
    --term-cmd:     #7c3aed;
    --term-output:  #94a3b8;
    --term-success: #06d6a0;
    --term-error:   #ef4444;
    --term-bar:     #1f2937;
    --term-btn-red:   #ff5f57;
    --term-btn-amber: #ffbd2e;
    --term-btn-green: #28c840;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.65;
    min-height: 100vh;
    overflow-x: hidden;
    /* Particle canvas sits below z-index 1 — site content layers above it */
    isolation: isolate;
}

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

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

a:hover {
    color: #fff;
}

::selection {
    background: rgba(0, 212, 255, 0.25);
    color: #fff;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-heading);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

code, kbd, samp, pre {
    font-family: var(--font-mono);
}

code {
    font-size: 0.875em;
    color: var(--color-text-code);
    background: rgba(0, 212, 255, 0.08);
    padding: 0.1em 0.4em;
    border-radius: var(--radius-sm);
}

pre {
    background: var(--term-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    overflow-x: auto;
    font-size: var(--text-sm);
    line-height: 1.7;
}

pre code {
    background: none;
    padding: 0;
    color: var(--term-text);
}

blockquote {
    border-left: 3px solid var(--color-primary);
    padding-left: var(--space-6);
    margin-left: 0;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.container--wide {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.container--narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.site-content {
    position: relative;
    z-index: var(--z-above);
    background-color: var(--color-bg);
}

/* Grid utilities */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }

/* Flex utilities */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ========================================
   Header
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition), border-color var(--transition);
    padding: var(--space-4) 0;
}

.site-header.scrolled {
    background: rgba(10, 14, 26, 0.97);
    border-bottom-color: var(--color-border-accent);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

/* Branding */
.site-branding {
    flex-shrink: 0;
}

.site-title {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: 0;
    letter-spacing: -0.03em;
}

.site-title a {
    color: var(--color-text-heading);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: color var(--transition);
}

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

.site-title .title-bracket {
    color: var(--color-primary);
    opacity: 0.7;
}

.site-title .title-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--color-primary);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1.2s step-end infinite;
}

.site-description {
    display: none;
}

/* Header right controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Language toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-1);
    gap: 0;
}

.lang-btn {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.05em;
}

.lang-btn.active {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
}

/* Navigation */
.main-navigation ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition);
    display: block;
    letter-spacing: 0.02em;
}

.main-navigation a:hover {
    color: var(--color-primary);
    background: rgba(0, 212, 255, 0.08);
}

.main-navigation .current-menu-item > a,
.main-navigation .current-page-ancestor > a {
    color: var(--color-primary);
    background: rgba(0, 212, 255, 0.1);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    color: var(--color-text-muted);
}

.menu-toggle-bar {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    transition: all var(--transition);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
    position: relative;
    z-index: var(--z-above);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand .site-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}

.footer-brand p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    max-width: 260px;
}

.footer-nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-nav-section h4 {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-4);
}

.footer-nav-section ul {
    list-style: none;
}

.footer-nav-section ul li {
    margin-bottom: var(--space-2);
}

.footer-nav-section ul a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.footer-nav-section ul a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border-dim);
}

.footer-bottom p {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-faint);
    margin: 0;
}

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

.footer-social a {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-faint);
    transition: color var(--transition);
}

.footer-social a:hover {
    color: var(--color-primary);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-spring);
    letter-spacing: 0.02em;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--transition);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    background: #33dcff;
    color: var(--color-bg);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border-color: var(--color-border);
}

.btn-ghost:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
    border-color: var(--color-primary);
}

.btn-sm {
    padding: var(--space-1) var(--space-4);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03), transparent);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), var(--glow-primary);
}

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

.card-body {
    padding: var(--space-6);
}

.card-header {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Terminal Component
   ======================================== */
.terminal {
    background: var(--term-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-bar {
    background: var(--term-bar);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-btns {
    display: flex;
    gap: var(--space-2);
}

.terminal-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.terminal-btn-red   { background: var(--term-btn-red); }
.terminal-btn-amber { background: var(--term-btn-amber); }
.terminal-btn-green { background: var(--term-btn-green); }

.terminal-title {
    flex: 1;
    text-align: center;
    font-size: var(--text-xs);
    color: var(--color-text-faint);
    letter-spacing: 0.05em;
}

.terminal-body {
    padding: var(--space-6);
    line-height: 1.8;
    min-height: 120px;
}

.terminal-line {
    display: block;
    margin-bottom: var(--space-1);
}

.terminal-prompt {
    color: var(--term-prompt);
    margin-right: var(--space-2);
    user-select: none;
}

.terminal-cmd {
    color: var(--term-cmd);
}

.terminal-output {
    color: var(--term-output);
    padding-left: var(--space-6);
}

.terminal-success {
    color: var(--term-success);
}

.terminal-error {
    color: var(--term-error);
}

.terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 1em;
    background: var(--term-prompt);
    vertical-align: text-bottom;
    animation: blink 1.2s step-end infinite;
    margin-left: 2px;
}

/* ========================================
   Section Styles
   ======================================== */
.section {
    padding: var(--space-24) 0;
}

.section--sm {
    padding: var(--space-16) 0;
}

.section--lg {
    padding: var(--space-24) 0;
}

.section-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.section-label::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--color-primary);
    flex-shrink: 0;
}

.section-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
    color: var(--color-text-heading);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 560px;
    margin-bottom: var(--space-12);
    line-height: 1.7;
}

/* Dividers */
.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), transparent);
    margin: var(--space-16) 0;
}

/* ========================================
   Tags / Badges
   ======================================== */
.tag {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    background: rgba(0, 212, 255, 0.08);
    color: var(--color-primary);
    border: 1px solid rgba(0, 212, 255, 0.2);
    letter-spacing: 0.04em;
    transition: all var(--transition);
    cursor: default;
}

.tag:hover,
.tag.active {
    background: var(--color-primary);
    color: var(--color-bg);
    cursor: pointer;
}

.tag-purple {
    background: rgba(124, 58, 237, 0.1);
    color: #a78bfa;
    border-color: rgba(124, 58, 237, 0.25);
}

.tag-green {
    background: rgba(6, 214, 160, 0.1);
    color: var(--color-accent);
    border-color: rgba(6, 214, 160, 0.25);
}

.tag-amber {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border-color: rgba(245, 158, 11, 0.25);
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-2);
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text);
    transition: all var(--transition);
    appearance: none;
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-faint);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
    background: var(--color-bg-elevated);
}

textarea {
    resize: vertical;
    min-height: 140px;
}

/* ========================================
   Animations
   ======================================== */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-24px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: var(--glow-primary); }
    50%       { box-shadow: 0 0 40px rgba(0, 212, 255, 0.6); }
}

@keyframes scanline {
    0%   { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-8px); }
}

.animate-fade-in-up { animation: fadeInUp 0.6s ease both; }
.animate-delay-1    { animation-delay: 0.1s; }
.animate-delay-2    { animation-delay: 0.2s; }
.animate-delay-3    { animation-delay: 0.3s; }
.animate-delay-4    { animation-delay: 0.4s; }
.animate-delay-5    { animation-delay: 0.5s; }

/* ========================================
   Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ========================================
   WordPress Core Classes
   ======================================== */
.alignleft  { float: left; margin-right: var(--space-6); }
.alignright { float: right; margin-left: var(--space-6); }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.alignwide   { max-width: calc(var(--container-max) + var(--space-16)); margin-left: auto; margin-right: auto; }
.alignfull   { width: 100vw; margin-left: calc(-50vw + 50%); }

.wp-caption { max-width: 100%; }
.wp-caption-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
    font-style: italic;
}

/* ========================================
   Responsive — Tablet (768px)
   ======================================== */
@media (max-width: 768px) {
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }

    .container,
    .container--wide,
    .container--narrow {
        padding: 0 var(--space-5);
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .site-header .container {
        flex-wrap: wrap;
        gap: var(--space-4);
    }

    .menu-toggle {
        display: flex;
    }

    .main-navigation {
        display: none;
        width: 100%;
        order: 3;
        padding: var(--space-4) 0;
        border-top: 1px solid var(--color-border);
    }

    .main-navigation.toggled {
        display: block;
    }

    .main-navigation ul {
        flex-direction: column;
        gap: var(--space-1);
    }

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

    .footer-nav-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .section {
        padding: var(--space-16) 0;
    }
}

/* ========================================
   Responsive — Mobile (480px)
   ======================================== */
@media (max-width: 480px) {
    .footer-nav-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--text-2xl);
    }

    .btn-lg {
        padding: var(--space-3) var(--space-6);
        font-size: var(--text-sm);
    }
}