:root {
    --primary: #F39C12;
    --primary-hover: #D68910;
    --secondary: #F1C40F;
    --accent: #E74C3C;
    --background: #1A1400;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(243, 156, 18, 0.2);
    --text-main: #FFFFFF;
    --text-muted: #B2BEC3;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--background);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    overflow-x: hidden;
    line-height: 1.6;
}

.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% -20%, rgba(243, 156, 18, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 900px;
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary);
}

.logo i {
    width: 32px;
    height: 32px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.glass {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.current-time-card {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-color: rgba(243, 156, 18, 0.4);
}

.label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}

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

.timestamp-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary);
}

main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.converter-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.converter-section h2 {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.input-wrapper {
    display: flex;
    gap: 0.75rem;
}

input, select {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

.primary-btn {
    background: var(--primary);
    color: var(--background);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.primary-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.secondary-btn {
    background: transparent;
    color: var(--secondary);
    border: 1px solid var(--secondary);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.secondary-btn:hover {
    background: rgba(241, 196, 15, 0.1);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.result-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-value-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.result-value-wrapper span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    word-break: break-all;
}

.result-placeholder {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.9rem !important;
}

.date-inputs-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
}

.actions {
    display: flex;
    gap: 1rem;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary);
    color: var(--background);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .current-time-card {
        width: 100%;
    }

    .input-wrapper {
        flex-direction: column;
    }

    .date-inputs-grid {
        grid-template-columns: 1fr;
    }

    .actions {
        flex-direction: column;
    }
}