:root {
    --primary: #3d5afe;
    --accent: #00e5ff;
    --bg-deep: #05070a;
    --glass-bg: rgba(13, 17, 23, 0.7);
    --border: rgba(48, 54, 61, 0.4);
    --text: #f0f6fc;
    --text-dim: #8b949e;
    --glow: rgba(61, 90, 254, 0.3);
    --font: "Outfit", sans-serif;
    --mono: "JetBrains Mono", monospace;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font);
    background-color: var(--bg-deep);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 40px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.brand-logo {
    height: 32px;
    width: 32px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo h1 span {
    color: var(--primary);
    text-shadow: 0 0 15px var(--glow);
}

.logo .subtitle {
    font-size: 14px;
    font-weight: 400;
    opacity: 0.6;
    margin-left: 10px;
    color: var(--text-dim);
}

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 32px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 40px;
    padding: 60px 40px;
    background: linear-gradient(
        135deg,
        rgba(61, 90, 254, 0.1),
        rgba(0, 229, 255, 0.1)
    );
}

.hero-label {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 800;
    font-size: 0.7rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.timestamp-display {
    font-family: var(--mono);
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(to right, var(--text), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -2px;
}

.date-display {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 32px;
    font-weight: 500;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Grid Layout */
.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 80px;
}

@media (max-width: 850px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
    .timestamp-display {
        font-size: 2.8rem;
    }
    header {
        padding: 20px 0;
    }
}

/* Form Elements */
.card-header h2 {
    font-size: 1.5rem;
    margin-bottom: 32px;
    font-weight: 700;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-with-action {
    display: flex;
    gap: 12px;
}

input,
select {
    width: 100%;
    padding: 16px 20px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

select {
    width: auto;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--glow);
    background-color: rgba(255, 255, 255, 0.05);
}

.btn {
    padding: 16px 28px;
    border-radius: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 4px 15px var(--glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow);
    filter: brightness(1.1);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-dim);
}

.full-width {
    width: 100%;
}

/* Result Area */
.result-area {
    margin-top: 32px;
    padding: 24px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 20px;
    border: 1px solid var(--border);
    position: relative;
    transition: var(--transition);
}

.result-area:hover {
    background: rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.result-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.result-value {
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 600;
    word-break: break-all;
    padding-right: 48px;
    color: var(--accent);
}

.copy-icon-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    cursor: pointer;
    color: var(--text-dim);
    padding: 10px;
    border-radius: 12px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-icon-btn:hover {
    color: var(--text);
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--glow);
}

.copy-icon-btn svg {
    width: 20px;
    height: 20px;
}

/* Footer */
footer {
    padding: 60px 0;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: auto;
    border-top: 1px solid var(--border);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: 700;
    z-index: 1000;
    transition:
        transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        opacity 0.3s ease;
    box-shadow: 0 10px 25px var(--glow);
    opacity: 0;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}