/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Theme Variables */
:root {
    /* Dark theme (default) */
    --bg-primary: #000;
    --bg-secondary: #0d0d0d;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #ccc;
    --text-muted: #888;
    --text-faint: #555;
    --border-color: #333;
    --border-light: #222;
    --accent-blue: #4a9eff;
    --accent-blue-light: #6bb3ff;
    --accent-orange: #ff6b35;
    --accent-orange-light: #ff8c5a;
    --selection-bg: #4a9eff;
    --selection-text: #000;
    --twitter-color: #1da1f2;
    --github-color: #f0f6fc;
    --linkedin-color: #0a66c2;
    --resume-color: #ff6b35;
    --title-glow-color: rgba(74, 158, 255, 0.8);
    --title-glow-intense: rgba(74, 158, 255, 1);
}

[data-theme="light"] {
    /* Sky blue light theme */
    --bg-primary: #cce7f5;
    --bg-secondary: #b8ddf0;
    --bg-tertiary: #a4d3eb;
    --text-primary: #0a1a24;
    --text-secondary: #152a38;
    --text-muted: #2a4a5a;
    --text-faint: #3a5a6a;
    --border-color: #a8d4e8;
    --border-light: #b8dff0;
    --accent-blue: #0066aa;
    --accent-blue-light: #0088cc;
    --accent-orange: #d45a2a;
    --accent-orange-light: #e06830;
    --selection-bg: #0066aa;
    --selection-text: #fff;
    --twitter-color: #0d8bd9;
    --github-color: #1a3a4a;
    --linkedin-color: #0a66c2;
    --resume-color: #d45a2a;
    --title-glow-color: rgba(0, 102, 170, 0.6);
    --title-glow-intense: rgba(0, 102, 170, 0.9);
}

/* Base */
body {
    font-family: 'SF Mono', 'Consolas', 'Monaco', 'Menlo', monospace;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    padding: 2rem 1.5rem;
    max-width: 720px;
    margin: 0 auto;
    transition: background 0.3s ease, color 0.3s ease;
}

html, body {
    overscroll-behavior-y: none;
}

.hidden {
    display: none;
}

/* Header */
header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px var(--title-glow-color);
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% {
        text-shadow: 0 0 8px var(--title-glow-color), 0 0 16px var(--title-glow-color);
    }
    50% {
        text-shadow: 0 0 15px var(--title-glow-intense), 0 0 30px var(--title-glow-color), 0 0 45px var(--title-glow-color);
    }
}

header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Quote Base Styles */
header blockquote {
    margin: 1rem 0 0 0;
}

header blockquote p {
    margin: 0;
    line-height: 1.7;
}

header blockquote cite {
    display: block;
    font-style: normal;
    font-size: 0.8rem;
    color: var(--text-faint);
    margin-top: 0.5rem;
}

/* Style A: Left border accent */
.quote-style-a {
    border-left: 2px solid var(--accent-blue);
    padding-left: 1rem;
}

.quote-style-a p {
    font-style: italic;
    color: var(--text-muted);
}

.quote-style-a cite {
    padding-left: 0;
}

/* Style B: Decorative quote marks */
.quote-style-b {
    position: relative;
    padding: 0 1.5rem;
}

.quote-style-b::before {
    content: '"';
    position: absolute;
    left: -0.25rem;
    top: -0.5rem;
    font-size: 3rem;
    color: var(--accent-blue);
    opacity: 0.5;
    font-family: Georgia, serif;
    line-height: 1;
}

.quote-style-b p {
    font-style: italic;
    color: var(--text-muted);
}

.quote-style-b cite {
    text-align: right;
}

/* Style C: Minimal with separated attribution */
.quote-style-c {
    text-align: center;
    padding: 0.5rem 0;
}

.quote-style-c p {
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.quote-style-c cite {
    color: var(--accent-blue);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.75rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    flex-wrap: nowrap;
}

.social-links a {
    display: inline-block;
    padding: 0.4rem 0.7rem;
    font-size: 0.75rem;
    text-decoration: none;
    background: transparent;
    border: 1px solid;
    transition: all 0.3s ease;
    white-space: nowrap;
}

@media (min-width: 480px) {
    .social-links {
        gap: 0.75rem;
    }
    .social-links a {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

/* Twitter */
.social-links a:nth-child(1) {
    color: var(--twitter-color);
    border-color: var(--twitter-color);
    text-shadow: 0 0 10px rgba(29, 161, 242, 0.5);
    box-shadow: 0 0 5px rgba(29, 161, 242, 0.3), inset 0 0 5px rgba(29, 161, 242, 0.1);
}

.social-links a:nth-child(1):hover {
    background: rgba(29, 161, 242, 0.15);
    box-shadow: 0 0 15px rgba(29, 161, 242, 0.6), 0 0 30px rgba(29, 161, 242, 0.4), inset 0 0 10px rgba(29, 161, 242, 0.2);
    text-shadow: 0 0 20px rgba(29, 161, 242, 0.8);
}

/* GitHub */
.social-links a:nth-child(2) {
    color: var(--github-color);
    border-color: var(--github-color);
    text-shadow: 0 0 10px rgba(240, 246, 252, 0.5);
    box-shadow: 0 0 5px rgba(240, 246, 252, 0.3), inset 0 0 5px rgba(240, 246, 252, 0.1);
}

.social-links a:nth-child(2):hover {
    background: rgba(240, 246, 252, 0.1);
    box-shadow: 0 0 15px rgba(240, 246, 252, 0.6), 0 0 30px rgba(240, 246, 252, 0.4), inset 0 0 10px rgba(240, 246, 252, 0.2);
    text-shadow: 0 0 20px rgba(240, 246, 252, 0.8);
}

/* LinkedIn */
.social-links a:nth-child(3) {
    color: var(--linkedin-color);
    border-color: var(--linkedin-color);
    text-shadow: 0 0 10px rgba(10, 102, 194, 0.5);
    box-shadow: 0 0 5px rgba(10, 102, 194, 0.3), inset 0 0 5px rgba(10, 102, 194, 0.1);
}

.social-links a:nth-child(3):hover {
    background: rgba(10, 102, 194, 0.15);
    box-shadow: 0 0 15px rgba(10, 102, 194, 0.6), 0 0 30px rgba(10, 102, 194, 0.4), inset 0 0 10px rgba(10, 102, 194, 0.2);
    text-shadow: 0 0 20px rgba(10, 102, 194, 0.8);
}

/* Resume */
.social-links a:nth-child(4) {
    color: var(--resume-color);
    border-color: var(--resume-color);
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
    box-shadow: 0 0 5px rgba(255, 107, 53, 0.3), inset 0 0 5px rgba(255, 107, 53, 0.1);
}

.social-links a:nth-child(4):hover {
    background: rgba(255, 107, 53, 0.15);
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.6), 0 0 30px rgba(255, 107, 53, 0.4), inset 0 0 10px rgba(255, 107, 53, 0.2);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.8);
}

/* Articles */
.articles {
    display: flex;
    flex-direction: column;
}

.article-card {
    display: block;
    padding: 0.75rem 0;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--border-light);
}

.article-card:hover .article-title {
    color: var(--accent-blue-light);
    text-decoration: underline;
}

.article-card:first-child {
    padding-top: 0;
}

.article-tags {
    margin-bottom: 0.4rem;
}

.article-tags span {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    padding: 0.15rem 0.4rem;
    border-radius: 2px;
    font-size: 0.7rem;
    margin-right: 0.4rem;
    border: 1px solid var(--border-color);
}

.article-title {
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 1rem;
    font-weight: 400;
    color: var(--accent-orange);
    margin-bottom: 0.3rem;
    line-height: 1.4;
    transition: color 0.2s;
}

.article-excerpt {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 0.3rem;
}

.article-meta {
    font-size: 0.75rem;
    color: var(--text-faint);
}

/* Loading/Error/Empty States */
#loading,
#error,
#empty {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-faint);
}

#error {
    color: var(--accent-orange);
}

/* Footer */
footer {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-faint);
}

/* Selection */
::selection {
    background: var(--selection-bg);
    color: var(--selection-text);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1000;
}

.theme-toggle:hover {
    border-color: var(--accent-blue);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--text-muted);
    transition: fill 0.3s ease;
}

.theme-toggle:hover svg {
    fill: var(--accent-blue);
}

/* Hide icons based on theme */
/* Dark mode (default): show sun icon (click to go light) */
.theme-toggle .icon-sun {
    display: block;
}

.theme-toggle .icon-moon {
    display: none;
}

/* Light mode: show moon icon (click to go dark) */
[data-theme="light"] .theme-toggle .icon-sun {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-moon {
    display: block;
}