@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --primary-emerald: #10b981;
    --dark-emerald: #059669;
    --accent-emerald-light: #ecfdf5;
}

*, *::before, *::after {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: #ffffff;
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    padding: 0;
}

/* Hide scrollbar while keeping scrolling functional */
.hide-scrollbar::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Primary Gradient Button */
.gradient-btn {
    background: linear-gradient(90deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.35);
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
    user-select: none;
}

.gradient-btn:hover {
    background: linear-gradient(90deg, #0ea472 0%, #047857 100%);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.gradient-btn:active {
    transform: scale(0.97);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

/* Screenshot Carousel - Compact Mobile-First Height */
.scroll-container {
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scroll-padding: 0 1rem;
}

.screenshot-card {
    scroll-snap-align: start;
    flex: 0 0 auto;
    border: 1.5px solid #e5e7eb;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #f9fafb;
    user-select: none;
    overflow: hidden;
    height: 200px; /* Compact Play Store height on mobile */
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.screenshot-card img {
    height: 100%;
    width: auto;
    display: block;
    object-fit: contain;
}

@media (min-width: 640px) {
    .screenshot-card {
        height: 270px;
        border-radius: 18px;
    }
}

@media (min-width: 768px) {
    .screenshot-card {
        height: 330px;
        border-radius: 22px;
    }
}

.screenshot-card:hover {
    border-color: #10b981;
    transform: translateY(-4px);
    box-shadow: 0 12px 20px -5px rgba(16, 185, 129, 0.18), 0 6px 8px -5px rgba(16, 185, 129, 0.08);
}

.screenshot-card:active {
    transform: scale(0.98);
}

/* Bottom Sticky Install Bar - Mobile Smart Slide */
.mobile-bottom-bar {
    transform: translateY(115%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
    padding-bottom: max(0.85rem, calc(0.6rem + env(safe-area-inset-bottom)));
}

.mobile-bottom-bar.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

/* Lightbox Modal */
.modal-backdrop {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    transform: scale(0.92);
}

.modal-backdrop.active .modal-container {
    transform: scale(1);
}

/* Toast notification */
.toast-notice {
    position: fixed;
    bottom: max(96px, calc(80px + env(safe-area-inset-bottom)));
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #ffffff;
    padding: 10px 22px;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 120;
    white-space: nowrap;
}

.toast-notice.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}