/* --- Variables & Core Theme --- */
:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(18, 26, 43, 0.75);
    --card-border: rgba(0, 255, 170, 0.15);
    --card-border-hover: #00ffaa;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent-green: #00ffaa;
    --accent-cyan: #00e5ff;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
    position: relative;
    overflow-x: hidden;
}

/* --- Subtle Grid Overlay --- */
.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 170, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 170, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: -1;
}

/* --- Layout Container --- */
.container {
    width: 100%;
    max-width: 640px;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

/* --- Header Profile Card --- */
.profile-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    position: relative;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 170, 0.08);
    border: 1px solid rgba(0, 255, 170, 0.25);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 12px var(--accent-green); }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.avatar-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, rgba(0, 255, 170, 0.2), rgba(0, 229, 255, 0.2));
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.2);
}

.avatar-icon {
    font-size: 2.2rem;
    color: var(--accent-green);
}

.name {
    font-size: 1.85rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.5px;
    margin-bottom: 0.35rem;
}

.title {
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.prompt {
    color: var(--accent-green);
    font-weight: bold;
}

.bio {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    padding: 4px 10px;
    border-radius: 6px;
}

/* --- Links Section --- */
.links-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 4px;
}

.links-grid {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.social-card {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    padding: 1.1rem 1.4rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-main);
    transition: all 0.25s ease-in-out;
}

.social-card:hover {
    border-color: var(--card-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 170, 0.15);
}

.card-icon {
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.1rem;
    transition: color 0.25s ease;
}

.github:hover .card-icon { color: #fff; }
.linkedin:hover .card-icon { color: #0a66c2; }
.telegram:hover .card-icon { color: #24a1de; }
.instagram:hover .card-icon { color: #e1306c; }

.card-info {
    flex-grow: 1;
}

.card-info h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-info p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.external-link-icon {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: color 0.25s ease, transform 0.25s ease;
}

.social-card:hover .external-link-icon {
    color: var(--accent-green);
    transform: translate(2px, -2px);
}

/* --- Footer --- */
footer {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 0.5rem;
}


/* --- 404 Error Page Specific Styling --- */

.error-badge {
    background: rgba(255, 0, 85, 0.08);
    border-color: rgba(255, 0, 85, 0.3);
    color: #ff0055;
}

.error-dot {
    background-color: #ff0055;
    box-shadow: 0 0 8px #ff0055;
    animation: pulse-red 1.8s infinite;
}

@keyframes pulse-red {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 12px #ff0055; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.error-code {
    font-family: var(--font-mono);
    font-size: 5rem;
    font-weight: 700;
    color: #ff0055;
    line-height: 1;
    margin: 0.5rem 0 1rem;
    text-shadow: 0 0 20px rgba(255, 0, 85, 0.3);
    letter-spacing: -2px;
}

.terminal-box {
    background: rgba(5, 8, 15, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    text-align: left;
    margin: 1.5rem 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    line-height: 1.5;
}

.term-red { color: #ff0055; font-weight: bold; }
.term-yellow { color: #ffcc00; font-weight: bold; }
.term-green { color: var(--accent-green); font-weight: bold; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 255, 170, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.25s ease-in-out;
}

.btn-primary:hover {
    background: var(--accent-green);
    color: #0b0f19;
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.4);
    transform: translateY(-2px);
}