:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(20, 30, 46, 0.7);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent-color: #00f0ff;
    /* Cyan/Blue neon */
    --accent-glow: rgba(0, 240, 255, 0.2);
    --success-color: #00ff9d;
    --error-color: #ff0055;
    --font-mono: 'Share Tech Mono', monospace;
    --font-sans: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Grid Effect */
.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(11, 15, 25, 0.9);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    backdrop-filter: blur(10px);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
    letter-spacing: 2px;
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    margin-left: 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: color 0.3s;
}

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

.container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Center content vertically */
    padding: 2rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Hero & Search */
.hero-section {
    text-align: center;
    width: 100%;
    max-width: 600px;
    margin-top: -5rem;
    /* Optical center fix */
}

h1 {
    font-family: var(--font-mono);
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    position: relative;
    /* Basic Glitch Effect */
    text-shadow: 2px 0 var(--error-color), -2px 0 var(--accent-color);
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.search-box {
    background: var(--card-bg);
    padding: 2rem;
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 4px;
    box-shadow: 0 0 20px var(--accent-glow);
}

.input-group {
    display: flex;
    align-items: center;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

.input-prefix {
    font-family: var(--font-mono);
    color: var(--accent-color);
    margin-right: 1rem;
    font-size: 1.2rem;
}

input[type="text"] {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1.2rem;
    width: 100%;
    outline: none;
}

input[type="text"]::placeholder {
    color: rgba(226, 232, 240, 0.3);
}

button {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1.5rem;
    font-family: var(--font-mono);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
}

button:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Result Section */
.result-section {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-family: var(--font-mono);
    font-weight: bold;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-badge.verified {
    background: rgba(0, 255, 157, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    box-shadow: 0 0 15px rgba(0, 255, 157, 0.2);
}

.status-badge.error {
    background: rgba(255, 0, 85, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.status-badge .icon {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.certificate-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.cert-image-container {
    background: #000;
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cert-image {
    width: 100%;
    height: auto;
    display: block;
}

.cert-details {
    padding: 2rem;
    text-align: left;
    display: grid;
    gap: 1.5rem;
    position: relative;
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.label {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 0.2rem;
}

.value {
    font-size: 1.2rem;
    font-weight: 600;
}

.value.code {
    font-family: var(--font-mono);
    color: var(--accent-color);
    letter-spacing: 1px;
}

.actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.download-btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-mono);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
    white-space: nowrap;
}

.linkedin-btn {
    flex: 1;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    text-decoration: none;
    padding: 1rem;
    background: #0077b5;
    color: white;
    font-family: var(--font-mono);
    border: 1px solid #0077b5;
    transition: all 0.3s;
    font-weight: bold;
    white-space: nowrap;
}

.linkedin-btn .in {
    background: white;
    color: #0077b5;
    border-radius: 2px;
    padding: 0 2px;
    margin-left: 2px;
}

.linkedin-btn:hover {
    background: #006097;
    box-shadow: 0 0 15px rgba(0, 119, 181, 0.4);
}

.download-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

.error-message {
    color: var(--error-color);
    font-family: var(--font-mono);
    margin-top: 1rem;
    text-align: left;
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
}

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

.footer {
    text-align: center;
    padding: 2rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* Responsive */
@media (min-width: 768px) {
    .certificate-card {
        flex-direction: row;
        align-items: center;
    }

    .cert-image-container {
        width: 60%;
        border-bottom: none;
        border-right: 1px solid rgba(255, 255, 255, 0.1);
    }

    .cert-details {
        width: 40%;
    }
}