:root {
    --apple-bg: #ffffff;
    --apple-text: #1d1d1f;
    --apple-text-secondary: #86868b;
    --apple-brand: #0071e3;
    --apple-glass: rgba(255, 255, 255, 0.72);
    --apple-border: rgba(0, 0, 0, 0.1);
    --apple-font-family: 'Questrial', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--apple-font-family);
    background-color: var(--apple-bg);
    color: var(--apple-text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -0.022em;
}

/* Glassmorphism */
.glass {
    background: var(--apple-glass);
    backdrop-filter: saturate(180%) blur(20px);
}

.glass-dark {
    background: rgba(29, 29, 31, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
}

.premium-card {
    background: white;
    border-radius: 24px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.06);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.mockup-container {
    perspective: 1000px;
}

.mockup-window {
    transform: rotateX(5deg) rotateY(-5deg);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.mockup-window:hover {
    transform: rotateX(2deg) rotateY(-2deg);
}

.text-gradient {
    background: linear-gradient(180deg, #1d1d1f 0%, #434344 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.apple-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 980px;
    font-size: 17px;
    font-weight: 400;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.apple-button-primary {
    background-color: var(--apple-brand);
    color: white;
}

.apple-button-primary:hover {
    background-color: #0077ed;
    filter: brightness(1.1);
}

.apple-button-secondary {
    background-color: transparent;
    color: var(--apple-brand);
}

.apple-button-secondary:hover {
    text-decoration: underline;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Layout helpers */
.section-padding {
    padding: 120px 20px;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 20px;
    }
}