/* ==================== COMMON COMPONENTS & UTILITIES ==================== */

/* Section Introduction Pattern */
.section-intro {
    margin-bottom: var(--space-xl);
}

.section-intro__headline {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-intro__description {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 800px;
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

/* Partnership Tag Component */
.partnership-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--color-border-neon);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 20px;
    color: var(--color-accent-neon-cyan);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    backdrop-filter: blur(10px);
}

.partnership-tag__icon {
    font-size: 1rem;
    filter: drop-shadow(0 0 5px var(--color-glow-cyan));
}

/* Button System */
.btn {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(45deg, var(--color-accent-neon-cyan), var(--color-accent-electric-blue));
    color: var(--color-primary);
    border: none;
    min-width: 200px;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-cyan);
}

.btn-primary::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: var(--transition);
}

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

.btn-secondary {
    background: transparent;
    color: var(--color-accent-neon-green);
    border: 2px solid var(--color-accent-neon-green);
    min-width: 150px;
}

.btn-secondary:hover {
    background: var(--color-accent-neon-green);
    color: var(--color-primary);
    box-shadow: var(--shadow-neon-green);
    transform: translateY(-2px);
}

.btn-accent {
    background: linear-gradient(45deg, var(--color-accent-neon-pink), var(--color-accent-neon-purple));
    color: var(--color-primary);
    border: none;
    min-width: 200px;
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-pink);
}

/* Card System */
.card {
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border-neon);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-neon-cyan);
    box-shadow: var(--shadow-card), var(--shadow-neon-cyan);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-neon-cyan), var(--color-accent-neon-green));
    opacity: 0;
    transition: var(--transition);
}

.card:hover::before {
    opacity: 1;
}

/* Feature List Pattern */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.feature-item__icon {
    color: var(--color-accent-neon-green);
    font-size: 1rem;
    margin-top: 4px;
    filter: drop-shadow(0 0 5px var(--color-glow-green));
    min-width: 20px;
}

.feature-item__text {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Grid System */
.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.grid-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-lg);
}

.grid-4col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--space-md);
}

/* Form Elements */
.form-control {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.form-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.form-input,
.form-textarea,
.form-select {
    background: rgba(10, 10, 10, 0.6);
    border: 1px solid var(--color-border-neon);
    border-radius: var(--border-radius);
    padding: var(--space-sm);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-accent-neon-cyan);
    box-shadow: var(--shadow-neon-cyan);
    outline: none;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    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='%2300ffff' 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;
    background-size: 16px;
    padding-right: 40px;
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.active {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* Responsive Utilities */
@media (max-width: 1024px) {
    .grid-4col {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .grid-2col,
    .grid-3col {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        align-items: center;
    }
    
    .section-intro__headline,
    .section-intro__description {
        text-align: center;
    }
    
    .partnership-tag {
        margin: 0 auto var(--space-md) auto;
    }
}

@media (max-width: 480px) {
    .grid-4col {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .btn {
        width: 100%;
    }
}

/* 4K Display Optimization */
@media (min-width: 2560px) {
    .section-intro__headline {
        font-size: clamp(3rem, 5vw, 4rem);
    }
    
    .section-intro__description {
        font-size: clamp(1.25rem, 1.5vw, 1.5rem);
        max-width: 1000px;
    }
    
    .partnership-tag {
        font-size: 1.1rem;
        padding: var(--space-sm) var(--space-md);
    }
    
    .partnership-tag__icon {
        font-size: 1.2rem;
    }
    
    .btn {
        font-size: 1.2rem;
        padding: var(--space-md) var(--space-xl);
    }
    
    .card {
        padding: var(--space-xl);
    }
    
    .feature-item__icon {
        font-size: 1.2rem;
    }
    
    .feature-item__text {
        font-size: 1.1rem;
    }
    
    .form-label {
        font-size: 1.1rem;
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        font-size: 1.2rem;
        padding: var(--space-md);
    }
}