:root {
    --light-primary: #4CAF50;
    --light-secondary: #45a049;
    --light-background: #f4f4f4;
    --light-surface: #ffffff;
    --light-text: #333333;
    --light-border: #eeeeee;
    --light-grid-bg: #f0f0f0;
    --light-header-bg: #e0e0e0;
    --light-error: #dc3545;

    --dark-primary: #66bb6a;
    --dark-secondary: #4caf50;
    --dark-background: #121212;
    --dark-surface: #1e1e1e;
    --dark-text: #e0e0e0;
    --dark-border: #333333;
    --dark-grid-bg: #262626;
    --dark-header-bg: #2d2d2d;
    --dark-error: #f44336;

    --primary-color: var(--dark-primary);
    --secondary-color: var(--dark-secondary);
    --background-color: var(--dark-background);
    --surface-color: var(--dark-surface);
    --text-color: var(--dark-text);
    --border-color: var(--dark-border);
    --grid-bg-color: var(--dark-grid-bg);
    --header-bg-color: var(--dark-header-bg);
    --error-color: var(--dark-error);
}

:root.light-theme {
    --primary-color: var(--light-primary);
    --secondary-color: var(--light-secondary);
    --background-color: var(--light-background);
    --surface-color: var(--light-surface);
    --text-color: var(--light-text);
    --border-color: var(--light-border);
    --grid-bg-color: var(--light-grid-bg);
    --header-bg-color: var(--light-header-bg);
    --error-color: var(--light-error);
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    z-index: 100;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: var(--surface-color);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: var(--background-color);
    color: var(--text-color);
}

.hidden {
    display: none !important;
}

#app {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--surface-color);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    text-align: center;
}

header {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

h1 {
    margin: 0;
}

#user-input {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
    padding: 10px 0;
}

/* Add specific styling for the text in user-input */
.user-input-text {
    margin: 0;
    padding: 5px 0;
}

#squat-button {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#squat-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

#squat-button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#stats {
    /* margin: 0 auto 30px auto; */
    margin: 0 auto;
    font-size: 1.1em;
    padding: 0 15px 10px 15px;
    background: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
}

.stats-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    /* width: 100%;
    margin: 0 auto; */
}

.stats-list h2 {
    padding: 0px 0;
}

.stats-item {
    margin: 0;
    color: var(--text-color);
}

#current-username {
    color: var(--primary-color);
    font-weight: 600;
}

#user-streak, #longest-streak, #streak-holder {
    font-weight: 600;
}

#grid-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    margin: 0;
    padding: 10px;
    max-width: 100%;
    position: relative;
}

#squat-grid {
    display: grid;
    gap: 2px;
    background-color: var(--grid-bg-color);
    padding: 10px;
    border-radius: 8px;
    margin: 0 auto;
    min-width: min-content;
    width: 100%;
}

.grid-cell {
    padding: 8px;
    text-align: center;
    background-color: var(--surface-color);
    min-width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
}

.corner-header {
    font-weight: bold;
    background-color: var(--header-bg-color);
}

.date-header {
    font-size: 0.8em;
    font-weight: bold;
    background-color: var(--header-bg-color);
}

.user-name {
    text-align: center;
    justify-content: center;
    padding-left: 0;
}

.current-user {
    color: var(--primary-color);
    background-color: var(--grid-bg-color);
}

.squatted {
    background-color: var(--primary-color);
    color: var(--surface-color);
}

.today {
    border: 2px solid #2196F3;
}

@media (max-width: 768px) {
    #squat-grid {
        font-size: 0.8em;
        gap: 1px;
    }

    .grid-cell {
        padding: 4px;
        min-width: 20px;
        height: 20px;
    }
}

#user-setup {
    text-align: center;
    /* padding: 2rem; */
    display: flex;
    flex-direction: column;
    align-items: center;
    /* gap: 1rem; */
}

#user-setup-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

#username {
    padding: 12px;
    font-size: 1.1em;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    width: 250px;
    background-color: var(--surface-color);
    color: var(--text-color);
}

#username:focus {
    border-color: var(--primary-color);
    outline: none;
}

#save-username {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    width: fit-content;
    margin: 0 auto;
}

#save-username:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.error {
    color: var(--error-color);
    margin-top: 10px;
    font-size: 0.9em;
}

.user-info {
    margin-bottom: 10px;
    padding: 5px;
    font-weight: bold;
    color: #333;
}

#current-username {
    color: var(--primary-color);
}

.grid-empty-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    color: #666;
}

.day-of-week {
    display: block;
    font-size: 0.7em;
    color: #666;
    margin-top: 2px;
}

.squatted {
    background-color: var(--primary-color);
    color: var(--surface-color);
    font-weight: bold;
}

.grid-cell {
    position: relative;
    min-height: 40px;
}

.date-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5px;
}

#squat-status {
    font-size: 0.9em;
    color: #666;
    font-style: italic;
    text-align: center;
    width: 100%;
    margin: 10px 0;
}

#subtitle {
    margin: 0;
    font-size: 0.9em;
    color: #666;
    font-style: italic;
}

.app-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9em;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-links .icon {
    width: 20px;
    height: 20px;
}

.footer-text {
    color: var(--text-color);
    font-size: 0.9em;
    text-align: center;
}

.setup-image {
    max-width: 200px;
    height: auto;
    display: block;
    margin: 0 auto 2rem auto;
    border-radius: 8px;
}

#app-description {
    max-width: 800px;
    margin: 0 auto 10px auto;
    padding: 10px 20px 20px 20px;
    background: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

#app-description h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

#app-description p {
    margin: 15px 0;
    line-height: 1.6;
    font-size: 1.1em;
}

.description-highlight {
    font-style: italic;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.8em !important;
    margin-top: 25px !important;
}

/* Add these media queries for better mobile experience */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    #app {
        padding: 10px;
    }

    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.4em;
    }

    #app-description {
        padding: 10px;
        margin: 0 auto 10px auto;
    }

    #app-description p {
        font-size: 0.95em;
        margin: 10px 0;
    }

    .stats-list {
        font-size: 0.9em;
    }

    #squat-button {
        padding: 12px 24px;
        font-size: 1em;
    }

    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: 30px;
    }

    .footer-links a span {
        display: none;
    }

    .footer-links .icon {
        width: 24px;
        height: 24px;
    }

    .footer-links a {
        padding: 8px;
    }
}

/* Additional breakpoint for very small screens */
@media (max-width: 480px) {
    .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 6px 12px;
        font-size: 0.9em;
    }

    #grid-container {
        margin-top: 10px;
        padding: 10px 0;
    }

    .grid-cell {
        padding: 4px;
        min-width: 25px;
        min-height: 25px;
        font-size: 0.8em;
    }

    .date-header {
        font-size: 0.7em;
    }

    .day-of-week {
        font-size: 0.6em;
    }
}

/* Style scrollbar for webkit browsers */
#grid-container::-webkit-scrollbar {
    height: 6px;
}

#grid-container::-webkit-scrollbar-track {
    background: var(--grid-bg-color);
    border-radius: 3px;
}

#grid-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

@media (max-width: 768px) {
    #squat-button, #save-username {
        min-height: 44px; /* iOS minimum touch target size */
        min-width: 44px;
    }

    .footer-links a {
        padding: 8px 0; /* Larger touch target for footer links */
    }
}

#grid-container h2 {
    margin-top: 10px;
    margin-bottom: 10px;
}

/* Add smooth scrolling behavior */
html {
    scroll-behavior: smooth;
}

/* Add loading state styles */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Add transition effects */
.grid-cell, #squat-button, .theme-toggle {
    transition: all 0.2s ease-in-out;
}

/* Add touch feedback */
@media (hover: none) {
    .grid-cell:active {
        transform: scale(0.95);
    }
    
    #squat-button:active {
        transform: scale(0.98);
    }
}

/* Improve mobile grid scrolling */
#grid-container {
    -ms-overflow-style: none; /* IE and Edge */
    scrollbar-width: none; /* Firefox */
}

#grid-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

.recovery-code-container {
    text-align: center;
    padding: 2rem;
    background-color: var(--surface-color);
    border-radius: 8px;
    margin: 2rem 0;
    border: 2px solid var(--primary-color);
}

.recovery-code {
    font-family: monospace;
    font-size: 2em;
    padding: 1rem;
    margin: 1rem 0;
    background-color: var(--background-color);
    border-radius: 4px;
    letter-spacing: 3px;
    color: var(--primary-color);
}

.recovery-warning {
    color: var(--error-color);
    font-weight: bold;
    margin: 1rem 0;
}

.recovery-link {
    margin-top: 1rem;
    font-size: 0.9em;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.recovery-link p {
    margin: 0;
}

.recovery-link a {
    color: var(--primary-color);
    text-decoration: none;
}

.recovery-link a:hover {
    text-decoration: underline;
}

#account-recovery {
    text-align: center;
    padding: 2rem;
}

#account-recovery input {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 1rem auto;
    padding: 12px;
    font-size: 1.1em;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--surface-color);
    color: var(--text-color);
}

#account-recovery input:focus {
    border-color: var(--primary-color);
    outline: none;
}

#recover-account {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

#recover-account:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.fun-question {
    font-size: 1.1em;
    color: var(--primary-color);
    margin: 1rem 0;
    font-weight: 500;
    line-height: 1.4;
}

.recovery-input {
    width: 100%;
    max-width: 300px;
    padding: 12px;
    font-size: 1.1em;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--surface-color);
    color: var(--text-color);
    margin: 1rem auto;
}

.recovery-input:focus {
    border-color: var(--primary-color);
    outline: none;
}

#recovery-code-container {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    background-color: var(--grid-bg-color);
}

.primary-button {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    width: fit-content;
    margin: 0 auto;
}

.primary-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
    .primary-button {
        min-height: 44px; /* iOS minimum touch target size */
        min-width: 44px;
    }
}