/* Theme styles for Learning Odyssey */

/* Primary buttons */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--color-hover);
}

.btn-primary:focus {
    outline: none;
    ring: 2px;
    ring-color: var(--color-focus);
    ring-offset: 2px;
}

/* Choice cards */
.choice-card {
    background-color: var(--color-bg-primary);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.choice-card:hover {
    border-color: var(--color-accent-light);
    background-color: rgba(13, 148, 136, 0.1);
    /* Very subtle teal tint */
}

.choice-card.selected {
    background-color: var(--color-primary);
    border-color: var(--color-primary-dark);
    color: var(--color-text-light);
}

.choice-card:disabled {
    opacity: var(--color-disabled);
    cursor: not-allowed;
}

/* Progress bar */
.progress-bar {
    background-color: var(--color-bg-secondary);
}

.progress-bar-fill {
    background-color: var(--color-primary);
}

/* Gradients for choice cards */
.gradient-primary-light {
    background-image: linear-gradient(to bottom, var(--color-primary-lighter), var(--color-primary-light));
}

.gradient-primary-medium {
    background-image: linear-gradient(to bottom, var(--color-primary-light), var(--color-primary));
}

.gradient-primary-dark {
    background-image: linear-gradient(to bottom, var(--color-primary), var(--color-primary-dark));
}

/**
 * Modern Accents CSS
 * 
 * Enhances the UI with subtle modern touches while maintaining minimalism:
 * - Additional color accents
 * - Subtle gradients and shadows
 * - Micro-interactions
 * - Visual depth elements
 */

/* Subtle background patterns and gradients */
body {
    background: linear-gradient(135deg, var(--color-bg-gradient-start), var(--color-bg-gradient-end));
    position: relative;
}

/* Add subtle texture to the background */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234f46e5' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

/* Enhanced story container with subtle depth */
#storyContainer {
    background: transparent;
    transition: all 0.4s ease;
}

/* Improved accent line at the top */
#storyContainer::after {
    height: 4px;
    background: linear-gradient(to right,
            var(--color-accent-start),
            var(--color-primary),
            var(--color-accent-end));
    opacity: 0.8;
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.2);
}

/* Enhanced choice cards with subtle gradients and improved hover states */
.choice-card {
    background: var(--color-bg-card);
    border-left: 3px solid var(--color-accent-medium);
    box-shadow:
        0 4px 12px -2px rgba(0, 0, 0, 0.05),
        0 0 0 1px rgba(236, 233, 252, 0.5);
    position: relative;
    overflow: hidden;
}

.choice-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.1),
            rgba(255, 255, 255, 0));
    z-index: 1;
    pointer-events: none;
}

.choice-card:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow:
        0 8px 20px -4px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(236, 233, 252, 0.7);
    border-left: 3px solid var(--color-primary);
}

.choice-card:hover::before {
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.2),
            rgba(255, 255, 255, 0.05));
}

.choice-card.selected {
    border-left: 3px solid var(--color-primary);
    background: var(--color-bg-card-selected);
    box-shadow:
        0 6px 16px -4px rgba(79, 70, 229, 0.2),
        0 0 0 1px rgba(79, 70, 229, 0.3);
}

/* Enhanced buttons with subtle gradients */
.primary-button,
button.bg-indigo-600,
button.w-full.flex.justify-center.py-2.px-4.border.border-transparent.rounded-md.shadow-sm.text-sm.font-medium.text-white.bg-indigo-600 {
    background: linear-gradient(to bottom,
            var(--color-primary-light),
            var(--color-primary));
    box-shadow:
        0 2px 4px rgba(13, 148, 136, 0.2),
        0 0 0 1px rgba(13, 148, 136, 0.1);
    position: relative;
    overflow: hidden;
}

.primary-button:hover,
button.bg-indigo-600:hover,
button.w-full.flex.justify-center.py-2.px-4.border.border-transparent.rounded-md.shadow-sm.text-sm.font-medium.text-white.bg-indigo-600:hover {
    background: linear-gradient(to bottom,
            var(--color-primary),
            var(--color-primary-dark));
    box-shadow:
        0 4px 8px rgba(13, 148, 136, 0.3),
        0 0 0 1px rgba(13, 148, 136, 0.2);
    transform: translateY(-1px);
}

.primary-button:active,
button.bg-indigo-600:active,
button.w-full.flex.justify-center.py-2.px-4.border.border-transparent.rounded-md.shadow-sm.text-sm.font-medium.text-white.bg-indigo-600:active {
    transform: translateY(1px);
    box-shadow:
        0 1px 2px rgba(13, 148, 136, 0.2),
        0 0 0 1px rgba(13, 148, 136, 0.1);
}

/* Button shine effect */
.primary-button::after,
button.bg-indigo-600::after,
button.w-full.flex.justify-center.py-2.px-4.border.border-transparent.rounded-md.shadow-sm.text-sm.font-medium.text-white.bg-indigo-600::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.2),
            transparent);
    transition: 0.5s;
}

.primary-button:hover::after,
button.bg-indigo-600:hover::after,
button.w-full.flex.justify-center.py-2.px-4.border.border-transparent.rounded-md.shadow-sm.text-sm.font-medium.text-white.bg-indigo-600:hover::after {
    left: 100%;
}

/* Enhanced carousel cards */
.carousel-card {
    background: transparent;
    border: none;
    box-shadow: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-card.active {
    border: none;
    background: transparent;
    box-shadow: none;
}

.carousel-card .card-back {
    background: transparent;
}

/* Enhanced carousel navigation */
.carousel-nav button {
    background: var(--color-primary-gradient);
    box-shadow:
        0 4px 8px rgba(13, 148, 136, 0.3),
        0 0 0 1px rgba(13, 148, 136, 0.2);
}

.carousel-nav button:hover {
    background: var(--color-primary-dark-gradient);
    box-shadow:
        0 6px 12px rgba(13, 148, 136, 0.4),
        0 0 0 1px rgba(13, 148, 136, 0.3);
}

/* Enhanced header with subtle shadow */
h1.text-4xl {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    position: relative;
}

/* Enhanced header controls with paper fold effect */
.header-controls {
    background: transparent;
    position: relative;
}

/* Paper fold/crease effect instead of straight line */
.header-controls::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(to right,
            transparent 0%,
            rgba(139, 120, 93, 0.1) 20%,
            rgba(139, 120, 93, 0.2) 50%,
            rgba(139, 120, 93, 0.1) 80%,
            transparent 100%);
    box-shadow:
        0 1px 2px rgba(139, 120, 93, 0.1),
        0 -1px 1px rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

/* Enhanced font size controls */
.font-size-controls {
    background: var(--color-bg-controls);
    box-shadow:
        0 2px 6px rgba(0, 0, 0, 0.05),
        0 0 0 1px rgba(236, 233, 252, 0.5);
}

.font-size-btn {
    background: var(--color-bg-button);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.font-size-btn:hover {
    background: var(--color-accent-light);
    transform: translateY(-1px);
}

.font-size-btn:active {
    transform: translateY(1px);
}

/* Enhanced loader */
.loader-overlay {
    background: var(--color-bg-overlay);
}

.loader-triangle {
    border-bottom: 60px solid var(--color-primary);
    filter: drop-shadow(0 0 8px rgba(79, 70, 229, 0.4));
}

/* Enhanced markdown content */
.markdown-content p {
    position: relative;
}

@media (max-width: 768px) {
    .markdown-content p {
        border-left: 2px solid var(--color-accent-light);
        padding-left: 12px;
        margin-left: 0;
        margin-bottom: 1.4em;
        transition: border-left-color 0.3s ease;
        cursor: pointer;
        /* Add cursor pointer to indicate interactivity */
    }

    .markdown-content p:hover,
    .markdown-content p.active {
        border-left-color: var(--color-primary-light);
    }
}

/* Enhanced code blocks */
.markdown-content code {
    background: var(--color-bg-code);
    border: 1px solid var(--color-accent-light);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Subtle animations for page elements */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

#introText,
#storyCategoryScreen,
#lessonTopicScreen {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #storyContainer {
        margin-top: 0;
        border-radius: 12px;
    }

    .choice-card {
        margin-bottom: 16px;
    }
}