/* Enhanced Modern CSS for SQL Playground */

/* Modern Card Components */
.modern-card {
    background: rgba(var(--bg-secondary-rgb), 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59, 130, 246, 0.5) 50%, 
        transparent 100%);
}

.modern-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(59, 130, 246, 0.1);
}

[data-theme="dark"] .modern-card {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.05);
}

/* Enhanced Buttons */
.btn-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    color: white;
    text-decoration: none;
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-modern-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.btn-modern-outline:hover {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* Modern Form Elements */
.form-modern {
    position: relative;
}

.form-modern input,
.form-modern textarea,
.form-modern select {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(var(--bg-secondary-rgb), 0.8);
    border: 2px solid transparent;
    border-radius: 16px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-modern input:focus,
.form-modern textarea:focus,
.form-modern select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.form-modern label {
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    pointer-events: none;
    background: var(--bg-primary);
    padding: 0 0.5rem;
}

.form-modern input:focus + label,
.form-modern input:not(:placeholder-shown) + label {
    top: -0.5rem;
    font-size: 0.875rem;
    color: var(--primary-color);
}

/* Modern Navigation Pills */
.nav-pills {
    display: flex;
    background: rgba(var(--bg-secondary-rgb), 0.8);
    padding: 0.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-pill {
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.nav-pill.active,
.nav-pill:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Modern Progress Bar */
.progress-modern {
    width: 100%;
    height: 8px;
    background: rgba(var(--bg-tertiary-rgb), 0.5);
    border-radius: 50px;
    overflow: hidden;
    position: relative;
}

.progress-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 50px;
    transition: width 0.5s ease;
    width: var(--progress, 0%);
}

/* Modern Badge */
.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.badge-modern.secondary {
    background: rgba(var(--bg-tertiary-rgb), 0.8);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Modern Alert */
.alert-modern {
    padding: 1.5rem;
    border-radius: 16px;
    border-left: 4px solid;
    background: rgba(var(--bg-secondary-rgb), 0.8);
    backdrop-filter: blur(10px);
    margin: 1rem 0;
    position: relative;
    overflow: hidden;
}

.alert-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        transparent 100%);
    pointer-events: none;
}

.alert-modern.success {
    border-left-color: var(--success-color);
    color: var(--success-text);
}

.alert-modern.error {
    border-left-color: var(--error-color);
    color: var(--error-text);
}

.alert-modern.warning {
    border-left-color: var(--warning-color);
    color: var(--warning-text);
}

.alert-modern.info {
    border-left-color: var(--info-color);
    color: var(--info-text);
}

/* Modern Loading Spinner */
.spinner-modern {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(var(--primary-color-rgb), 0.3);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Modern Tooltip */
.tooltip-modern {
    position: relative;
    display: inline-block;
}

.tooltip-modern::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.tooltip-modern:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Modern Grid System */
.grid-modern {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-modern.dense {
    grid-auto-flow: dense;
}

/* Enhanced Adaptive Tile-Wrap Components */
.tile-wrap-adaptive {
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 4rem);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Container queries for adaptive layouts */
@container (max-width: 600px) {
    .tile-wrap-adaptive {
        padding: 0 1rem;
    }
}

@container (min-width: 601px) and (max-width: 1200px) {
    .tile-wrap-adaptive {
        padding: 0 2rem;
    }
}

@container (min-width: 1201px) {
    .tile-wrap-adaptive {
        padding: 0 3rem;
    }
}

/* Adaptive grid system for tile-wrap */
.tile-wrap-grid {
    display: grid;
    gap: clamp(1rem, 3vw, 2rem);
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 4rem);
}

/* Adaptive flex layouts */
.tile-wrap-flex {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(1rem, 3vw, 2rem);
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 4rem);
}

.tile-wrap-flex > * {
    flex: 1 1 clamp(250px, 30%, 400px);
}

/* Responsive tile-wrap modifiers */
.tile-wrap-mobile-full {
    padding: 0 0.75rem;
}

.tile-wrap-tablet-comfortable {
    padding: 0 1.5rem;
}

.tile-wrap-desktop-spacious {
    padding: 0 3rem;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .tile-wrap-adaptive {
        padding: 0 0.75rem;
    }

    .tile-wrap-grid {
        padding: 0 0.75rem;
        gap: 1rem;
        grid-template-columns: 1fr;
    }

    .tile-wrap-flex {
        padding: 0 0.75rem;
        gap: 1rem;
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .modern-card {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .btn-modern {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .grid-modern {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .nav-pills {
        flex-direction: column;
        border-radius: 16px;
    }

    .nav-pill {
        border-radius: 12px;
        text-align: center;
    }

    .tile-wrap-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tile-wrap-flex {
        flex-direction: column;
        gap: 1.5rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .tile-wrap-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }

    .tile-wrap-flex > * {
        flex: 1 1 clamp(300px, 45%, 500px);
    }
}

@media (min-width: 1025px) {
    .tile-wrap-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }

    .tile-wrap-flex > * {
        flex: 1 1 clamp(350px, 30%, 600px);
    }
}