:root {
    /* Light Theme Colors - More muted/softer colors */
    --primary-light: #00696a;
    --on-primary-light: #ffffff;
    --primary-container-light: #b2ebeb;
    --on-primary-container-light: #002020;
    --secondary-light: #4a6363;
    --on-secondary-light: #ffffff;
    --secondary-container-light: #cce8e8;
    --on-secondary-container-light: #051f1f;
    --tertiary-light: #4b5f7e;
    --surface-light: #f5fafa;
    --on-surface-light: #191c1c;
    --surface-variant-light: #dae4e4;
    --on-surface-variant-light: #3f4949;
    --outline-light: #6f7979;
    --error-light: #ba1a1a;
    --on-error-light: #ffffff;
    --error-container-light: #ffdad6;

    /* Dark Theme Colors - More contrast and less harsh */
    --primary-dark: #64d8d8;
    --on-primary-dark: #003737;
    --primary-container-dark: #004f4f;
    --on-primary-container-dark: #97f0f0;
    --secondary-dark: #b0cccc;
    --on-secondary-dark: #1c3434;
    --secondary-container-dark: #334b4b;
    --on-secondary-container-dark: #cce8e8;
    --tertiary-dark: #b2c5e8;
    --surface-dark: #101414;
    --on-surface-dark: #e0e3e2;
    --surface-variant-dark: #3f4949;
    --on-surface-variant-dark: #bec8c8;
    --outline-dark: #889393;
    --error-dark: #ffb4ab;
    --on-error-dark: #690005;
    --error-container-dark: #93000a;

    /* Common */
    --shadow-color: rgba(0, 0, 0, 0.12);
    --ripple-light: rgba(0, 0, 0, 0.1);
    --ripple-dark: rgba(255, 255, 255, 0.1);

    /* Animation Durations */
    --anim-duration-short: 150ms;
    --anim-duration-medium: 300ms;
    --anim-duration-long: 500ms;
    --anim-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
    --anim-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
    --anim-accelerate: cubic-bezier(0.4, 0.0, 1, 1);
}

/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: var(--surface);
    color: var(--on-surface);
    transition: background-color 0.3s var(--anim-standard), 
                color 0.3s var(--anim-standard);
    min-height: 100vh;
}

.light-theme {
    --primary: var(--primary-light);
    --on-primary: var(--on-primary-light);
    --primary-container: var(--primary-container-light);
    --on-primary-container: var(--on-primary-container-light);
    --secondary: var(--secondary-light);
    --on-secondary: var(--on-secondary-light);
    --secondary-container: var(--secondary-container-light);
    --on-secondary-container: var(--on-secondary-container-light);
    --tertiary: var(--tertiary-light);
    --surface: var(--surface-light);
    --on-surface: var(--on-surface-light);
    --surface-variant: var(--surface-variant-light);
    --on-surface-variant: var(--on-surface-variant-light);
    --outline: var(--outline-light);
    --error: var(--error-light);
    --on-error: var(--on-error-light);
    --error-container: var(--error-container-light);
    --ripple: var(--ripple-light);
}

.dark-theme {
    --primary: var(--primary-dark);
    --on-primary: var(--on-primary-dark);
    --primary-container: var(--primary-container-dark);
    --on-primary-container: var(--on-primary-container-dark);
    --secondary: var(--secondary-dark);
    --on-secondary: var(--on-secondary-dark);
    --secondary-container: var(--secondary-container-dark);
    --on-secondary-container: var(--on-secondary-container-dark);
    --tertiary: var(--tertiary-dark);
    --surface: var(--surface-dark);
    --on-surface: var(--on-surface-dark);
    --surface-variant: var(--surface-variant-dark);
    --on-surface-variant: var(--on-surface-variant-dark);
    --outline: var(--outline-dark);
    --error: var(--error-dark);
    --on-error: var(--on-error-dark);
    --error-container: var(--error-container-dark);
    --ripple: var(--ripple-dark);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* App Bar */
.app-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--outline);
    animation: slideInUp var(--anim-duration-medium) var(--anim-decelerate);
    position: relative;
}

.app-bar::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--primary), transparent);
    opacity: 0.6;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--primary);
    transition: color var(--anim-duration-medium) var(--anim-standard);
}

.app-bar-actions {
    display: flex;
    gap: 0.5rem;
}

/* Cards */
.card {
    background-color: var(--surface);
    border-radius: 16px;
    box-shadow: 0 2px 10px var(--shadow-color);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center top;
    animation: cardEnter var(--anim-duration-long) var(--anim-decelerate);
    transition: transform var(--anim-duration-medium) var(--anim-standard),
                box-shadow var(--anim-duration-medium) var(--anim-standard);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--shadow-color);
}

.card-content {
    padding: 1.5rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--on-surface);
}

/* Upload */
.upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}

#drop-area {
    width: 100%;
    min-height: 200px;
    border: 2px dashed var(--outline);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    cursor: pointer;
    transition: all var(--anim-duration-medium) var(--anim-standard);
    animation: pulseOnce var(--anim-duration-long) var(--anim-standard) 1s;
}

#drop-area:hover, #drop-area.dragover {
    border-color: var(--primary);
    background-color: var(--primary-container);
    transform: scale(1.01);
}

.upload-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 1rem;
}

#file-input {
    display: none;
}

.preview-container {
    width: 100%;
    max-width: 400px;
    margin: 1rem 0;
}

#image-preview {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.preview-actions {
    display: flex;
    justify-content: center;
    margin-top: 0.5rem;
}

.upload-actions {
    display: flex;
    justify-content: center;
}

/* Results */
.view-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    background-color: var(--surface-variant);
    border-radius: 24px;
    padding: 4px;
    width: fit-content;
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    border-radius: 20px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: var(--on-surface-variant);
    transition: all 0.3s ease;
}

.toggle-btn.active {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
}

.result-view {
    margin-bottom: 1.5rem;
}

/* Table View */
.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.results-table caption {
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.75rem;
    text-align: left;
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.results-table th, .results-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--outline);
}

.results-table th {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    font-weight: 500;
}

.results-table tr:nth-child(even) {
    background-color: var(--surface-variant);
    opacity: 0.8;
}

.results-table tr:hover {
    background-color: var(--primary-container);
}

.results-table tr {
    animation: fadeIn var(--anim-duration-medium) var(--anim-standard);
    transition: background-color var(--anim-duration-medium) var(--anim-standard);
}

/* Add staggered animations for table rows */
.results-table tr:nth-child(1) { animation-delay: 50ms; }
.results-table tr:nth-child(2) { animation-delay: 100ms; }
.results-table tr:nth-child(3) { animation-delay: 150ms; }
.results-table tr:nth-child(4) { animation-delay: 200ms; }
.results-table tr:nth-child(5) { animation-delay: 250ms; }
.results-table tr:nth-child(6) { animation-delay: 300ms; }
.results-table tr:nth-child(7) { animation-delay: 350ms; }
.results-table tr:nth-child(8) { animation-delay: 400ms; }
.results-table tr:nth-child(9) { animation-delay: 450ms; }
.results-table tr:nth-child(10) { animation-delay: 500ms; }

/* Slide View */
.slide-container {
    background-color: var(--surface-variant);
    border-radius: 16px;
    padding: 2.5rem;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
    transform: translateY(0);
    transition: transform var(--anim-duration-medium) var(--anim-standard),
                box-shadow var(--anim-duration-medium) var(--anim-standard);
}

.slide-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
}

.slide-content {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-grow: 1;
}

#slide-title {
    margin-bottom: 2rem;
    color: var(--primary);
    font-size: 1.75rem;
    text-align: center;
    font-weight: 500;
    animation: fadeIn var(--anim-duration-long) var(--anim-decelerate);
}

#slide-data {
    font-size: 1.5rem;
    line-height: 1.8;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: center;
    align-items: center;
}

.question-number {
    margin-bottom: 1rem;
    font-size: 2rem;
    animation: slideInUp var(--anim-duration-long) var(--anim-decelerate);
}

.answer {
    font-weight: 600;
    font-size: 3.5rem;
    color: var(--primary);
    text-align: center;
    padding: 1rem;
    border-radius: 12px;
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    animation: pulseOnce var(--anim-duration-long) var(--anim-standard) forwards;
    min-width: 150px;
}

.slide-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding-top: 1.5rem;
    animation: fadeIn var(--anim-duration-long) var(--anim-decelerate);
}

.nav-btn {
    background-color: var(--primary-container);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--on-primary-container);
    transition: all var(--anim-duration-short) var(--anim-standard);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-btn:disabled {
    background-color: var(--surface);
    color: var(--outline);
    cursor: not-allowed;
    box-shadow: none;
}

.nav-btn:not(:disabled):hover {
    background-color: var(--primary);
    color: var(--on-primary);
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Slide View */
.slide-container {
    background-color: var(--surface-variant);
    border-radius: 12px;
    padding: 2rem;
    min-height: 200px;
    position: relative;
}

.slide-content {
    margin-bottom: 2rem;
}

#slide-title {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

#slide-data {
    font-size: 1.2rem;
    line-height: 1.6;
}

.question-number {
    margin-bottom: 0.5rem;
}

.answer {
    font-weight: 500;
}

.slide-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.slide-nav-input {
    display: flex;
    align-items: center;
}

.slide-nav-input .text-input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
    width: 70px;
}

.slide-nav-input .button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.nav-btn {
    background-color: var(--primary-container);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--on-primary-container);
    transition: all 0.3s ease;
}

.nav-btn:disabled {
    background-color: var(--surface);
    color: var(--outline);
    cursor: not-allowed;
}

.nav-btn:not(:disabled):hover {
    background-color: var(--primary);
    color: var(--on-primary);
}

/* Fullscreen Slide View */
.fullscreen-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--surface-variant);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--on-surface-variant);
    transition: all var(--anim-duration-short) var(--anim-standard);
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fullscreen-btn:hover {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    transform: scale(1.1);
}

.slide-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    margin: 0;
    z-index: 1000;
    border-radius: 0;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: expandToFullscreen var(--anim-duration-medium) var(--anim-decelerate);
}

.slide-container.fullscreen .slide-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slide-container.fullscreen #slide-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.slide-container.fullscreen #slide-data {
    font-size: 2rem;
}

.slide-container.fullscreen .question-number {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    animation: popIn var(--anim-duration-medium) var(--anim-decelerate);
}

.slide-container.fullscreen .answer {
    font-size: 4.5rem;
    padding: 1.5rem 3rem;
}

@keyframes expandToFullscreen {
    from {
        transform: scale(0.9);
        opacity: 0.8;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes popIn {
    0% { 
        transform: scale(0.8);
        opacity: 0;
    }
    50% { 
        transform: scale(1.05);
        opacity: 1;
    }
    100% { 
        transform: scale(1);
        opacity: 1;
    }
}

/* Results Actions */
.results-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Buttons */
.button {
    border: none;
    border-radius: 24px;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--anim-duration-medium) var(--anim-standard);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: var(--ripple);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.button:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

.button.primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.button.secondary {
    background-color: var(--secondary-container);
    color: var(--on-secondary-container);
}

.button:disabled {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    opacity: 0.7;
    cursor: not-allowed;
    box-shadow: none;
}

.button.primary:not(:disabled):hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    transform: translateY(-2px);
}

.button.secondary:not(:disabled):hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background-color: var(--secondary);
    color: var(--on-secondary);
    transform: translateY(-2px);
}

.button.primary:not(:disabled):active,
.button.secondary:not(:disabled):active {
    transform: translateY(1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.icon-button {
    background: transparent;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--on-surface-variant);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.icon-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: var(--ripple);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.icon-button:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

.icon-button:hover {
    background-color: var(--surface-variant);
    color: var(--primary);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 1;
    transition: opacity var(--anim-duration-medium) var(--anim-standard);
    backdrop-filter: blur(3px);
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(0px);
}

.modal-content {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn var(--anim-duration-medium) var(--anim-decelerate);
    border-radius: 16px;
    background-color: var(--surface);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--outline);
    background-color: var(--surface);
    border-radius: 16px 16px 0 0;
}

.modal-body {
    padding: 1.75rem;
    background-color: var(--surface);
}

.modal-footer {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: flex-end;
    border-top: 1px solid var(--outline);
    background-color: var(--surface);
    border-radius: 0 0 16px 16px;
}

/* Settings */
.setting-item {
    margin-bottom: 1.75rem;
    position: relative;
    transition: all var(--anim-duration-medium) var(--anim-standard);
}

.setting-item:hover {
    transform: translateX(5px);
}

.setting-item label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--on-surface-variant);
    font-weight: 500;
    transition: color var(--anim-duration-short) var(--anim-standard);
}

.setting-item:focus-within label {
    color: var(--primary);
}

.text-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--outline);
    border-radius: 8px;
    background-color: var(--surface);
    color: var(--on-surface);
    transition: all var(--anim-duration-short) var(--anim-standard);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.text-input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-container);
}

.text-input:hover:not(:focus) {
    border-color: var(--outline);
    background-color: var(--surface-variant);
}

/* Enhanced checkbox */
.setting-item.checkbox {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.setting-item.checkbox:hover {
    background-color: var(--surface-variant);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    margin-left: -1rem;
    margin-right: -1rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 26px;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface-variant);
    transition: .4s;
    border-radius: 34px;
    border: 1px solid var(--outline);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 3px;
    background-color: var(--on-surface-variant);
    transition: .4s;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: var(--primary);
    border-color: var(--primary);
}

input:focus + .slider {
    box-shadow: 0 0 0 2px var(--primary-container);
}

input:checked + .slider:before {
    background-color: var(--on-primary);
    transform: translateX(26px);
}

.setting-description {
    font-size: 0.85rem;
    color: var(--on-surface-variant);
    margin-top: 0.35rem;
    line-height: 1.4;
}

/* Tooltip for settings */
.setting-item .tooltip {
    position: absolute;
    top: 50%;
    right: -10px;
    transform: translateY(-50%);
    background-color: var(--primary);
    color: var(--on-primary);
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--anim-duration-short) var(--anim-standard);
    z-index: 10;
}

.setting-item:hover .tooltip {
    opacity: 1;
    visibility: visible;
    right: -20px;
}

/* Switch */
.setting-item.checkbox {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface-variant);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--on-surface-variant);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    background-color: var(--on-primary);
    transform: translateX(26px);
}

/* Loading */
#loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 2rem 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--surface-variant);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

/* Error */
.error-card {
    background-color: var(--error-container);
    color: var(--on-error-container);
    text-align: center;
    padding: 1rem;
    animation: shake 0.5s ease-in-out;
}

.error-icon {
    font-size: 48px;
    color: var(--error);
    margin-bottom: 1rem;
}

#error-message {
    margin-bottom: 1.5rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes shake {
    0% { transform: translateX(0); }
    20% { transform: translateX(-10px); }
    40% { transform: translateX(10px); }
    60% { transform: translateX(-10px); }
    80% { transform: translateX(10px); }
    100% { transform: translateX(0); }
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.5;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

@keyframes pulseOnce {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Theme Toggle Animation */
#theme-toggle {
    overflow: hidden;
    transition: transform var(--anim-duration-short) var(--anim-standard);
}

#theme-toggle:hover {
    transform: rotate(15deg);
}

#theme-toggle .material-icons {
    transition: transform var(--anim-duration-medium) var(--anim-decelerate);
}

body.light-theme #theme-toggle:active .material-icons {
    animation: spinOut var(--anim-duration-medium) var(--anim-accelerate);
}

body.dark-theme #theme-toggle:active .material-icons {
    animation: spinIn var(--anim-duration-medium) var(--anim-accelerate);
}

@keyframes spinOut {
    from { transform: rotate(0); }
    to { transform: rotate(180deg); }
}

@keyframes spinIn {
    from { transform: rotate(180); }
    to { transform: rotate(0); }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .app-container {
        padding: 0.75rem;
    }
    
    .card-content {
        padding: 1rem;
    }
    
    .results-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .button {
        width: 100%;
        justify-content: center;
    }
    
    .slide-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 1.2rem;
    }
    
    .view-toggle {
        width: 100%;
        justify-content: center;
    }
}

/* Debug Console */
.debug-console {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--surface);
    color: var(--on-surface);
    border-top: 1px solid var(--outline);
    height: 30vh;
    transform: translateY(100%);
    transition: transform var(--anim-duration-medium) var(--anim-standard);
    z-index: 900;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.debug-console.visible {
    transform: translateY(0);
}

.debug-console-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: var(--surface-variant);
    border-bottom: 1px solid var(--outline);
}

.debug-console-title {
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.debug-console-actions {
    display: flex;
    gap: 0.5rem;
}

.debug-console-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    background-color: var(--surface);
}

.debug-entry {
    padding: 0.25rem 0.5rem;
    margin-bottom: 0.25rem;
    border-left: 3px solid var(--outline);
    animation: fadeIn var(--anim-duration-short) var(--anim-standard);
}

.debug-entry.info {
    border-left-color: var(--primary);
}

.debug-entry.warning {
    border-left-color: #FFA726;
}

.debug-entry.error {
    border-left-color: var(--error);
}

.debug-timestamp {
    color: var(--on-surface-variant);
    font-size: 0.8rem;
    margin-right: 0.5rem;
}

.debug-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--surface);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--outline);
    z-index: 901;
    transition: all var(--anim-duration-medium) var(--anim-standard);
}

.debug-toggle:hover {
    transform: scale(1.1);
    background-color: var(--primary);
    color: var(--on-primary);
}

.debug-toggle.active {
    background-color: var(--primary);
    color: var(--on-primary);
}

/* Badge for debug toggle */
.debug-toggle .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: var(--on-error);
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}