/* =================================
   Fake Chat Generator - Styles
   Mobile-first, 320px base
   ================================= */

/* CSS Reset & Variables */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Global */
    --bg-editor: #f0f2f5;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --border-color: #ddd;
    --radius: 8px;
    --radius-lg: 16px;

    /* WhatsApp Colors */
    --wa-bg: #e5ddd5;
    --wa-bg-pattern: url("data:image/png;base64,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");
    --wa-header: #075e54;
    --wa-header-text: #ffffff;
    --wa-sent: #dcf8c6;
    --wa-received: #ffffff;
    --wa-time: #667781;

    /* Instagram Colors */
    --ig-bg: #ffffff;
    --ig-header: #fafafa;
    --ig-header-border: #dbdbdb;
    --ig-sent: #3797f0;
    --ig-sent-text: #ffffff;
    --ig-received: #efefef;
    --ig-received-text: #262626;
    --ig-time: #8e8e8e;

    /* iMessage Colors */
    --im-bg: #ffffff;
    --im-header: #f6f6f6;
    --im-header-text: #000000;
    --im-sent: #007aff;
    --im-sent-text: #ffffff;
    --im-received: #e5e5ea;
    --im-received-text: #000000;
    --im-time: #8e8e8e;

    /* Accent */
    --accent-green: #25D366;
    --accent-blue: #3797f0;
    --error: #dc3545;
}

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-editor);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.4;
}

/* =================================
   App Container
   ================================= */

.app-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
    padding-bottom: 32px;
}

/* =================================
   Header
   ================================= */

.app-header {
    text-align: center;
    margin-bottom: 20px;
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* =================================
   Platform Selector
   ================================= */

.platform-selector {
    margin-bottom: 16px;
}

.platform-selector label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.platform-tabs {
    display: flex;
    gap: 8px;
}

.platform-tab {
    flex: 1;
    padding: 12px 8px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    background: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.platform-tab:hover {
    border-color: var(--accent-green);
}

.platform-tab.active {
    border-color: var(--accent-green);
    background: var(--accent-green);
    color: #fff;
}

/* Platform-specific active colors */
.platform-instagram .platform-tab.active {
    border-color: var(--accent-blue);
    background: var(--accent-blue);
}

.platform-imessage .platform-tab.active {
    border-color: var(--im-sent);
    background: var(--im-sent);
}

/* =================================
   Contact Settings
   ================================= */

.contact-settings {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.contact-settings .input-group {
    flex: 1;
}

/* =================================
   Input Groups
   ================================= */

.input-group {
    margin-bottom: 12px;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    transition: border-color 0.2s ease;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-green);
}

.input-group textarea {
    resize: vertical;
    min-height: 60px;
}

/* =================================
   Chat Preview
   ================================= */

.preview-section {
    margin-bottom: 16px;
}

.chat-preview {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background: var(--wa-bg);
}

/* Chat Header */
.chat-header {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background: var(--wa-header);
    color: var(--wa-header-text);
    gap: 12px;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-letter {
    font-size: 1.25rem;
    font-weight: 600;
    text-transform: uppercase;
}

.chat-info {
    display: flex;
    flex-direction: column;
}

.chat-name {
    font-size: 1rem;
    font-weight: 500;
}

.chat-status {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Chat Body */
.chat-body {
    min-height: 200px;
    max-height: 300px;
    overflow-y: auto;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 150px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Messages */
.message {
    max-width: 80%;
    padding: 8px 12px;
    border-radius: 8px;
    position: relative;
    word-wrap: break-word;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-received {
    align-self: flex-start;
    background: var(--wa-received);
    border-bottom-left-radius: 4px;
}

.message-sent {
    align-self: flex-end;
    background: var(--wa-sent);
    border-bottom-right-radius: 4px;
}

.message-text {
    display: block;
    margin-bottom: 2px;
    font-size: 0.9375rem;
    line-height: 1.3;
}

.message-time {
    display: block;
    text-align: right;
    font-size: 0.6875rem;
    color: var(--wa-time);
}

.delete-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: var(--error);
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.message:hover .delete-btn,
.message:focus-within .delete-btn {
    opacity: 1;
}

/* Touch devices - always show delete button */
@media (hover: none) {
    .delete-btn {
        opacity: 1;
    }
}

/* =================================
   Message Editor
   ================================= */

.message-editor {
    background: #fff;
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

.editor-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 12px;
}

.time-input {
    flex: 0 0 80px;
    margin-bottom: 0;
}

.message-type-selector {
    display: flex;
    gap: 16px;
    flex: 1;
    padding-bottom: 4px;
}

.message-type-selector label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.875rem;
}

.message-type-selector input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-green);
}

.radio-label {
    color: var(--text-primary);
}

/* =================================
   Buttons
   ================================= */

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary {
    background: var(--accent-green);
    color: #fff;
}

.btn-primary:hover {
    background: #1fb855;
}

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

.btn-download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-download:hover {
    background: linear-gradient(135deg, #5a6fd6 0%, #6a4190 100%);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #f5f5f5;
}

/* =================================
   Actions Section
   ================================= */

.actions-section {
    text-align: center;
}

.actions-section .btn {
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* =================================
   Toast
   ================================= */

.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #333;
    color: #fff;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    background: var(--error);
}

/* =================================
   Loading Overlay
   ================================= */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    color: #fff;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =================================
   PLATFORM STYLES - Instagram
   ================================= */

.platform-instagram .chat-preview {
    background: var(--ig-bg);
}

.platform-instagram .chat-header {
    background: var(--ig-header);
    color: #262626;
    border-bottom: 1px solid var(--ig-header-border);
}

.platform-instagram .chat-avatar {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.platform-instagram .chat-body {
    background: var(--ig-bg);
}

.platform-instagram .message-received {
    background: var(--ig-received);
    color: var(--ig-received-text);
    border-radius: 18px;
    border-bottom-left-radius: 4px;
}

.platform-instagram .message-sent {
    background: var(--ig-sent);
    color: var(--ig-sent-text);
    border-radius: 18px;
    border-bottom-right-radius: 4px;
}

.platform-instagram .message-time {
    color: var(--ig-time);
}

.platform-instagram .message-sent .message-time {
    color: rgba(255, 255, 255, 0.7);
}

/* =================================
   PLATFORM STYLES - iMessage
   ================================= */

.platform-imessage .chat-preview {
    background: var(--im-bg);
}

.platform-imessage .chat-header {
    background: var(--im-header);
    color: var(--im-header-text);
    text-align: center;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px;
}

.platform-imessage .chat-avatar {
    background: #c7c7cc;
    width: 50px;
    height: 50px;
}

.platform-imessage .chat-info {
    align-items: center;
}

.platform-imessage .chat-status {
    color: var(--im-time);
}

.platform-imessage .chat-body {
    background: var(--im-bg);
}

.platform-imessage .message-received {
    background: var(--im-received);
    color: var(--im-received-text);
    border-radius: 18px;
    border-bottom-left-radius: 4px;
}

.platform-imessage .message-sent {
    background: var(--im-sent);
    color: var(--im-sent-text);
    border-radius: 18px;
    border-bottom-right-radius: 4px;
}

.platform-imessage .message-time {
    color: var(--im-time);
}

.platform-imessage .message-sent .message-time {
    color: rgba(255, 255, 255, 0.7);
}

/* =================================
   Responsive
   ================================= */

@media (min-width: 768px) {
    .app-container {
        padding: 24px;
    }

    .app-header h1 {
        font-size: 1.75rem;
    }

    .chat-body {
        max-height: 400px;
    }
}