:root {
    --primary-color: #ff0050; /* A tiktok-ish color */
    --secondary-color: #00f2ea;
    --background-color: #f0f2f5;
    --dark-color: #121212;
    --light-color: #ffffff;
    --border-radius: 12px;

    /* Define colors via CSS variables for easy theme switching */
    --c-bg: #f0f2f5;
    --c-text: #333;
    --c-container-bg: #ffffff;
    --c-container-shadow: 0 4px 12px rgba(0,0,0,0.1);
    --c-input-border: #ccc;
    --c-button-hover: #e9e9e9;
    --c-phone-bg: #121212;
}

body[data-theme="dark"] {
    --c-bg: #1e1e1e;
    --c-text: #e0e0e0;
    --c-container-bg: #2c2c2c;
    --c-container-shadow: 0 4px 15px rgba(0,0,0,0.5);
    --c-input-border: #555;
    --c-button-hover: #444;
    --c-phone-bg: #000;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--c-bg);
    color: var(--c-text);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

#app-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    width: 100%;
    max-width: 900px;
    position: relative;
    transition: max-width 0.5s ease;
}

#header-controls {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 10;
}

#theme-toggle-btn {
    background-color: var(--c-container-bg);
    color: var(--c-text);
    border: 1px solid var(--c-input-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--c-container-shadow);
    transition: background-color 0.3s, transform 0.2s;
}

#theme-toggle-btn:hover {
    transform: scale(1.1);
}

#story-generator {
    background: var(--c-container-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--c-container-shadow);
    width: 100%;
    text-align: center;
    margin-top: 50px; /* Make space for the theme button */
    transition: background-color 0.3s, box-shadow 0.3s;
}

#story-generator h1 {
    margin-top: 0;
    color: var(--c-text);
    transition: color 0.3s;
}

#prompt-section {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

#options-section {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    color: var(--c-text);
    font-size: 14px;
    transition: color 0.3s;
    flex-wrap: wrap;
}

#options-section label {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
}

#options-section #unblur-swear[disabled] {
    cursor: not-allowed;
}

#options-section label[for="unblur-swear"][data-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
}

#language-label {
    gap: 8px;
}

#language-select {
    background-color: var(--c-bg);
    color: var(--c-text);
    border: 1px solid var(--c-input-border);
    border-radius: 5px;
    padding: 3px 5px;
    font-size: 14px;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

#story-prompt {
    flex-grow: 1;
    padding: 12px 15px;
    border: 1px solid var(--c-input-border);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--c-bg);
    color: var(--c-text);
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

#generate-story-btn {
    padding: 12px 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--light-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: transform 0.2s, box-shadow 0.2s;
}

#generate-story-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

#generate-all-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    font-weight: bold;
    transition: transform 0.2s, box-shadow 0.2s;
}

#generate-all-btn:hover {
     transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

#story-viewer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

#phone-bezel {
    background: var(--c-phone-bg);
    padding: 20px;
    border-radius: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: background-color 0.3s, padding 0.5s ease, border-radius 0.5s ease;
}

#screen {
    width: 320px;
    height: 568px; /* iPhone 5 aspect ratio, common for stories */
    background: #222;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: width 0.5s ease, height 0.5s ease, border-radius 0.5s ease;
}

#slide-container {
    flex-grow: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

#slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

#text-overlay {
    position: absolute;
    bottom: 10%;
    left: 5%;
    right: 5%;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 15px;
    border-radius: 10px;
    font-size: 20px;
    text-align: center;
    max-height: 40%;
    overflow-y: auto;
    cursor: text;
    border: 2px dashed transparent;
}

#text-overlay:focus {
    outline: none;
    border: 2px dashed var(--secondary-color);
}

#slide-controls {
    position: absolute;
    bottom: 20px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#slide-controls button {
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s;
}

#slide-controls button:hover {
    background: rgba(0, 0, 0, 0.8);
}

#navigation-controls, #story-management-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

#navigation-controls button, #story-management-controls button {
    padding: 10px 15px;
    background-color: var(--c-container-bg);
    border: 1px solid var(--c-input-border);
    color: var(--c-text);
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
}

#navigation-controls button:hover, #story-management-controls button:hover {
    background-color: var(--c-button-hover);
}

#slide-indicator {
    font-size: 18px;
    font-weight: bold;
    min-width: 50px;
    text-align: center;
    color: var(--c-text);
    transition: color 0.3s;
}

.hidden {
    display: none !important;
}

/* Loading Overlays */
#global-loading-overlay, #image-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#image-loading-overlay {
    position: absolute; /* Relative to slide container */
    background: rgba(0, 0, 0, 0.8);
    z-index: 10;
}

.spinner {
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Tablet Mode Styles */
#story-viewer.tablet-mode #phone-bezel {
    padding: 25px;
    border-radius: 25px;
}

#story-viewer.tablet-mode #screen {
    width: 800px;
    height: 450px; /* Landscape 16:9 aspect ratio */
    border-radius: 15px;
}

#story-viewer.tablet-mode #text-overlay {
    font-size: 24px;
    max-height: 30%;
    bottom: 8%;
}

#story-viewer.tablet-mode #slide-controls {
    bottom: 25px;
    right: 25px;
    gap: 20px;
}

#story-viewer.tablet-mode #slide-controls button {
    width: 50px;
    height: 50px;
    font-size: 28px;
}