/* ==========================================================================
   Reset & Variables
   ========================================================================== */

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

:root {
    --google-blue: #4285F4;
    --google-red: #EA4335;
    --google-yellow: #FBBC05;
    --google-green: #34A853;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #dadce0;
}

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

body {
    font-family: 'Google Sans', 'KakaoBig', 'Noto Sans KR', sans-serif;
    background-color: #3a3a3a;
    background-image:
        radial-gradient(circle at 25px 25px, #4a4a4a 2px, transparent 0),
        radial-gradient(circle at 75px 75px, #4a4a4a 2px, transparent 0);
    background-size: 100px 100px;
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

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

.profile-header {
    text-align: center;
    margin-bottom: 50px;
    background: var(--bg-primary);
    padding: 50px 30px;
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 4px solid var(--google-blue);
    box-shadow: 0 4px 15px rgba(66, 133, 244, 0.3);
    margin-bottom: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--google-blue), var(--google-red), var(--google-yellow), var(--google-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 30px;
}

.typing-text span {
    border-right: 2px solid var(--google-blue);
    padding-right: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% { border-color: var(--google-blue); }
    50% { border-color: transparent; }
}

/* ==========================================================================
   Social Links
   ========================================================================== */

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover {
    color: var(--google-blue);
    transform: translateY(-3px);
}

/* ==========================================================================
   Section (Card)
   ========================================================================== */

.section {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    font-size: 1.1rem;
    color: var(--google-blue);
}

.section-title.red i { color: var(--google-red); }
.section-title.yellow i { color: var(--google-yellow); }
.section-title.green i { color: var(--google-green); }

/* ==========================================================================
   About
   ========================================================================== */

.about-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ==========================================================================
   Skills
   ========================================================================== */

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-badge {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    color: white;
}

.skill-badge:nth-child(4n+1) {
    background: var(--google-blue);
}
.skill-badge:nth-child(4n+2) {
    background: var(--google-red);
}
.skill-badge:nth-child(4n+3) {
    background: var(--google-yellow);
    color: var(--text-primary);
}
.skill-badge:nth-child(4n) {
    background: var(--google-green);
}

.skill-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   Stats
   ========================================================================== */

.stats-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.stats-container img {
    border-radius: 10px;
    max-width: 100%;
}

/* ==========================================================================
   Contact List
   ========================================================================== */

.contact-list {
    list-style: none;
}

.contact-list li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid var(--border-color);
}

.contact-list li:last-child {
    border-bottom: none;
}

.contact-list i {
    color: var(--google-blue);
    width: 20px;
}

.contact-list a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-list a:hover {
    color: var(--google-blue);
}

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

footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================================================
   Google Colors Dots
   ========================================================================== */

.google-colors {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
}

.google-colors span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.google-colors .blue { background: var(--google-blue); }
.google-colors .red { background: var(--google-red); }
.google-colors .yellow { background: var(--google-yellow); }
.google-colors .green { background: var(--google-green); }

/* ==========================================================================
   Blog - Post List
   ========================================================================== */

.post-list {
    list-style: none;
}

.post-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.post-item:last-child {
    border-bottom: none;
}

.post-item-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.post-item-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.post-item-title a:hover {
    color: var(--google-blue);
}

.post-item-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.post-item-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ==========================================================================
   Blog - Post Content
   ========================================================================== */

.post-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--google-blue);
}

.post-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.3;
}

.post-meta {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.post-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.post-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.post-tag:hover {
    background: var(--google-blue);
    color: white;
    border-color: var(--google-blue);
}

.post-content {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.8;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.post-content h2 {
    font-size: 1.5rem;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--google-blue);
}

.post-content h3 {
    font-size: 1.25rem;
}

.post-content p {
    margin-bottom: 1rem;
}

.post-content ul,
.post-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.post-content li {
    margin-bottom: 0.4rem;
}

.post-content blockquote {
    border-left: 4px solid var(--google-blue);
    padding: 10px 20px;
    margin: 1rem 0;
    background: var(--bg-secondary);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}

.post-content code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Consolas', 'Monaco', monospace;
}

.post-content pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 16px 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
    line-height: 1.5;
}

.post-content pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: 0.9rem;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
}

.post-content a {
    color: var(--google-blue);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.post-content a:hover {
    border-bottom-color: var(--google-blue);
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.post-content th,
.post-content td {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.post-content th {
    background: var(--bg-secondary);
    font-weight: 600;
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* ==========================================================================
   Slides - List Icon
   ========================================================================== */

.slide-icon {
    color: var(--google-red);
    font-size: 0.9em;
    margin-right: 4px;
}

/* ==========================================================================
   Blog - Navigation
   ========================================================================== */

.nav-bar {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    background: var(--bg-primary);
    padding: 15px 30px;
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-bar a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-bar a:hover,
.nav-bar a.active {
    color: var(--google-blue);
    background: rgba(66, 133, 244, 0.1);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--google-blue);
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--border-color);
}

.empty-state p {
    font-size: 1.1rem;
}

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

@media (max-width: 600px) {
    .name {
        font-size: 1.8rem;
    }

    .avatar {
        width: 140px;
        height: 140px;
    }

    .section {
        padding: 20px;
    }

    .profile-header {
        padding: 30px 20px;
    }

    .post-title {
        font-size: 1.5rem;
    }

    .nav-bar {
        padding: 12px 20px;
        gap: 15px;
    }
}