/* Premium UI Components & Micro-animations */

/* 1. Glassmorphism Effects */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-premium);
}

.glass-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-premium);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.glass-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-lg);
    border-color: var(--penguin-skyblue);
}

/* 2. Premium Entrance Animations */
@keyframes premium-fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-premium {
    animation: premium-fade-in-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Staggered animation classes */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

/* 3. High-fidelity Buttons */
.btn-premium {
    position: relative;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 650;
    font-size: 1rem;
    letter-spacing: -0.01em;
    border: none;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--penguin-navy);
    color: white;
}

.btn-premium::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s ease-out;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(29, 47, 78, 0.25);
}

.btn-premium:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

.btn-premium:active {
    transform: translateY(0) scale(0.97);
}

/* 4. Smooth Mobile Menu Transitions */
.mobile-menu-premium {
    transition: transform 0.5s cubic-bezier(0.85, 0, 0.15, 1);
}

/* 5. Modern Input Styling */
.input-premium {
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-premium:focus {
    background: white;
    border-color: var(--penguin-skyblue);
    box-shadow: 0 0 0 4px rgba(95, 178, 201, 0.15);
    outline: none;
}

/* 6. Section Titles */
.section-title-premium {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--penguin-navy);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    position: relative;
    display: inline-block;
}

@media (max-width: 768px) {
    .section-title-premium {
        font-size: 1.75rem;
    }
}