/* 
 * Waki-Taki - Styles.css
 * Main stylesheet for Waki-Taki mobile web app
 */

/* --- Reset and Base Styles --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Dark Theme Variables */
    --dark-bg: #121212;
    --dark-surface: #1e1e1e;
    --dark-primary: #3498db;
    --dark-text: #ffffff;
    --dark-text-secondary: #bbbbbb;
    --dark-accent: #2980b9;
    --dark-danger: #e74c3c;
    
    /* Light Theme Variables */
    --light-bg: #f5f5f5;
    --light-surface: #ffffff;
    --light-primary: #2980b9;
    --light-text: #333333;
    --light-text-secondary: #666666;
    --light-accent: #3498db;
    --light-danger: #c0392b;
    
    /* Common Variables */
    --transition-speed: 0.3s;
    --border-radius: 8px;
    --button-radius: 50px;
    --modal-radius: 12px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    
    /* iOS Safe Areas */
    --safe-area-inset-top: env(safe-area-inset-top, 0px);
    --safe-area-inset-right: env(safe-area-inset-right, 0px);
    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-inset-left: env(safe-area-inset-left, 0px);
}

html, body {
    height: 100%;
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
        Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    overscroll-behavior: none; /* Prevent pull-to-refresh */
}

/* --- Theme Styles --- */
body.dark-theme {
    --bg-color: var(--dark-bg);
    --surface-color: var(--dark-surface);
    --primary-color: var(--dark-primary);
    --text-color: var(--dark-text);
    --text-secondary-color: var(--dark-text-secondary);
    --accent-color: var(--dark-accent);
    --danger-color: var(--dark-danger);
}

body.light-theme {
    --bg-color: var(--light-bg);
    --surface-color: var(--light-surface);
    --primary-color: var(--light-primary);
    --text-color: var(--light-text);
    --text-secondary-color: var(--light-text-secondary);
    --accent-color: var(--light-accent);
    --danger-color: var(--light-danger);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Container Styles --- */
#app-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

#three-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    touch-action: none; /* Disable browser touch actions for this container */
}

/* --- Floating Button Styles --- */
.floating-button {
    position: absolute;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    z-index: 10;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform 0.2s;
    
    /* iOS safe area adjustments */
    margin-top: var(--safe-area-inset-top);
    margin-right: var(--safe-area-inset-right);
    margin-left: var(--safe-area-inset-left);
}

.floating-button:active {
    transform: scale(0.95);
}

.settings-button {
    top: 16px;
    left: 16px;
}

.chat-button {
    top: 16px;
    right: 16px;
}

/* Enhance touch targets for mobile */
@media (max-width: 812px) {
    .floating-button {
        width: 60px;
        height: 60px;
    }
}

/* --- Modal Styles --- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
    overflow: auto;
    opacity: 0;
    transition: opacity var(--transition-speed);
    -webkit-overflow-scrolling: touch; /* Better scrolling on iOS */
}

.modal.active {
    display: block;
    opacity: 1;
}

.modal-content {
    background-color: var(--surface-color);
    margin: 20px auto;
    width: 90%;
    max-width: 500px;
    border-radius: var(--modal-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transform: translateY(20px);
    transition: transform var(--transition-speed);
    -webkit-transform: translateZ(0); /* Optimize for mobile */
    will-change: transform; /* Hint to browser for optimization */
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(128, 128, 128, 0.2);
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.close-button {
    background: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary-color);
    width: 40px; /* Larger touch target */
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: -8px;
}

.modal-body {
    padding: 16px;
}

/* --- Form Elements --- */
textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(128, 128, 128, 0.3);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 16px;
    resize: vertical;
    -webkit-appearance: none; /* Remove iOS styling */
}

input[type="text"],
input[type="password"],
select {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(128, 128, 128, 0.3);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 16px;
    -webkit-appearance: none; /* Remove iOS styling */
}

/* Fix iOS select appearance */
select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='6'%3E%3Cpath fill='%23666' d='M0 0l6 6 6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-row {
    margin-bottom: 16px;
}

input[type="range"] {
    width: 80%;
    vertical-align: middle;
    -webkit-appearance: none; /* Remove iOS styling */
    background: var(--surface-color);
    height: 6px;
    border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
}

#rate-value, #pitch-value {
    display: inline-block;
    width: 30px;
    text-align: center;
}

/* --- Button Styles --- */
.btn {
    padding: 12px 20px;
    border-radius: var(--button-radius);
    border: none;
    background-color: var(--surface-color);
    color: var(--text-color);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    margin-right: 8px;
    margin-bottom: 8px;
    -webkit-appearance: none; /* Remove iOS styling */
    touch-action: manipulation; /* Improve touch responsiveness */
}

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

.danger-btn {
    background-color: var(--danger-color);
    color: white;
}

.btn:active {
    transform: scale(0.98);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

/* --- Switch/Toggle --- */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
    margin-bottom: 16px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: var(--transition-speed);
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition-speed);
}

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

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.switch-label {
    position: absolute;
    left: 70px;
    top: 7px;
}

/* --- Speech Status --- */
.speech-status {
    margin-top: 16px;
    padding: 8px;
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.speech-status.speaking {
    display: block;
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

/* --- Message Styling --- */
.message {
    padding: 12px;
    margin-top: 16px;
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.message.error {
    display: block;
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
}

.message.success {
    display: block;
    background-color: rgba(46, 204, 113, 0.1);
    color: #2ecc71;
}

/* --- Settings Sections --- */
.settings-section {
    margin-bottom: 24px;
}

.settings-section h3 {
    margin-bottom: 12px;
    font-size: 18px;
    font-weight: 500;
}

/* --- Responsive Adjustments --- */
@media (max-height: 600px) {
    .modal-content {
        margin: 10px auto;
    }
    
    textarea {
        min-height: 80px;
    }
    
    .modal-header {
        padding: 12px;
    }
    
    .modal-body {
        padding: 12px;
    }
}

/* Ensure buttons are easy to tap on small screens */
@media (max-width: 360px) {
    .floating-button {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 14px;
    }
}

/* --- Animations --- */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

.speaking-animation {
    animation: pulse 1.5s infinite;
}

/* Special adjustments for iOS devices to prevent zoom on input focus */
@supports (-webkit-touch-callout: none) {
    input, textarea, select {
        font-size: 16px;
    }
    
    /* Add padding for iOS bottom bar */
    .modal-content {
        margin-bottom: calc(20px + var(--safe-area-inset-bottom));
    }
    
    /* Fix WebGL canvas for iOS */
    #three-container canvas {
        width: 100% !important;
        height: 100% !important;
        position: absolute;
    }
    
    /* Fix button active states on iOS */
    .btn:active, .floating-button:active {
        opacity: 0.8;
    }
}

/* PWA / Full screen mode adjustments */
@media all and (display-mode: standalone) {
    .floating-button {
        top: calc(16px + var(--safe-area-inset-top));
    }
    
    .settings-button {
        left: calc(16px + var(--safe-area-inset-left));
    }
    
    .chat-button {
        right: calc(16px + var(--safe-area-inset-right));
    }
}

/* Toast notifications */
.toast {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 4px;
    margin-top: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    margin-bottom: var(--safe-area-inset-bottom);
    max-width: 80%;
    text-align: center;
    pointer-events: none;
    transform: translateZ(0); /* Hardware acceleration */
}

/* iOS-specific fixes */
@supports (-webkit-touch-callout: none) {
    /* Fix for iOS keyboard issues */
    .modal.active {
        position: absolute;
    }
    
    /* Fix for iOS button hover states */
    .btn:hover {
        opacity: 1;
    }
    
    /* Fix for iOS modal scrolling */
    .modal-body {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Avoid 3D transform flickering on iOS */
    .modal-content, .toast, #three-container {
        -webkit-backface-visibility: hidden;
        -webkit-transform-style: preserve-3d;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    .modal-content {
        transition: none;
    }
    
    .speaking-animation {
        animation: none;
    }
    
    .slider:before, .slider {
        transition: none;
    }
}

/* Fixed positioning for iOS bottom buttons */
.fixed-bottom-buttons {
    position: fixed;
    bottom: calc(20px + var(--safe-area-inset-bottom));
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 50;
}

/* Optimize canvas performance */
canvas {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Full screen mode in PWA */
@media screen and (display-mode: standalone) {
    body {
        padding-top: var(--safe-area-inset-top);
        padding-bottom: var(--safe-area-inset-bottom);
        padding-left: var(--safe-area-inset-left);
        padding-right: var(--safe-area-inset-right);
    }
}

/* Optimizations for older devices */
@media screen and (max-width: 320px), screen and (max-height: 480px) {
    .modal-content {
        width: 95%;
        margin: 10px auto;
    }
    
    .floating-button {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
    
    .btn {
        padding: 8px 12px;
        font-size: 14px;
    }
    
    input, select, textarea {
        font-size: 14px;
        padding: 8px;
    }
}