:root {
    --primary-color: #38bdf8;
    --primary_hover: #0ea5e9;
    --secondary-color: #0c4a6e;
    --accent-color: #48d1cc;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;

    --background-color: #1a202c;
    --card-background: #2d3748;
    --text-color: #e2e8f0;
    --text-muted: #a0aec0;
    --border-color: rgba(255, 255, 255, 0.1);
    --highlight-color: rgba(56, 189, 248, 0.2);
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    --hover-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    --background-color-rgb: 26, 32, 44;

    --border-radius-sm: 8px;
    --border-radius: 12px;
    --border-radius-lg: 20px;

    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --hover-transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    --hover-transform: translateY(-5px);

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
}

body {
    font-family: "Outfit", system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, var(--background-color) 0%, var(--card-background) 100%);
    color: var(--text-color);
    min-height: 100vh;
    transition: var(--transition);
}

.code-font {
    font-family: "Fira Code", "Consolas", monospace;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: gradient-shift 8s ease infinite;
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.glow-border {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.glow-border:hover {
    border-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
}

.input-glow:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--highlight-color);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--hover-transition);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    transform: translateX(-100%);
    transition: 0.5s;
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-primary:hover {
    transform: var(--hover-transform);
    box-shadow: var(--hover-shadow);
}

.pulse-dot {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.05);
    }
    100% { 
        opacity: 1;
        transform: scale(1);
    }
}

.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0% { 
        transform: translateY(0px);
    }
    50% { 
        transform: translateY(-10px);
    }
    100% { 
        transform: translateY(0px);
    }
}

/* Utility Classes dengan tema dark mode */
.w-full {
    width: 100%;
}

.px-4 {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.py-3 {
    padding-top: var(--space-sm);
    padding-bottom: var(--space-sm);
}

.bg-slate-900\/70 {
    background-color: rgba(var(--background-color-rgb), 0.7);
}

.border-slate-700 {
    border-color: var(--border-color);
}

.rounded-xl {
    border-radius: var(--border-radius);
}

.text-slate-200 {
    color: var(--text-color);
}

.placeholder\:text-slate-500::placeholder {
    color: var(--text-muted);
}

.transition-all {
    transition-property: all;
}

.duration-300 {
    transition-duration: 300ms;
}

.ring-2 {
    box-shadow: 0 0 0 2px var(--highlight-color);
}

.ring-purple-500\/30 {
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.3);
}

/* Layout improvements untuk desktop */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: 1fr;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.gap-6 {
    gap: var(--space-lg);
}

.gap-4 {
    gap: var(--space-md);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.text-center {
    text-align: center;
}

.mb-6 {
    margin-bottom: var(--space-lg);
}

.mb-4 {
    margin-bottom: var(--space-md);
}

.mt-8 {
    margin-top: var(--space-xl);
}

/* Card improvements */
.card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: var(--hover-transform);
    box-shadow: var(--hover-shadow);
    border-color: var(--primary-color);
}

/* Form improvements */
.form-input {
    width: 100%;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-color);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--highlight-color);
}

/* Responsive improvements */
@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .md\:flex-row {
        flex-direction: row;
    }
    
    .md\:text-left {
        text-align: left;
    }
    
    .md\:space-y-0 > * + * {
        margin-top: 0;
    }
    
    .md\:space-x-4 > * + * {
        margin-left: var(--space-md);
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .container {
        padding: 0 var(--space-xl);
    }
}

/* Additional animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInLeft 0.6s ease-out forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}