/* ============================================
   Vyn - Responsive Stylesheet
   Breakpoints: Desktop (>1200px), Tablet (768px-1200px), Mobile (<768px), Small Mobile (<480px)
   ============================================ */

/* ===== Tablet (768px - 1200px) ===== */
@media (max-width: 1200px) {
    #dashboardSidebar {
        width: 200px;
    }
    
    .landing-title {
        font-size: 48px;
    }
    
    .landing-tagline {
        font-size: 20px;
    }
    
    .landing-preview {
        max-width: 600px;
    }
}

/* ===== Mobile (<768px) ===== */
@media (max-width: 768px) {
    /* Sidebar - Collapsible on Mobile */
    #dashboardSidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        width: 240px;
    }
    
    #dashboardSidebar.mobile-open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }
    
    /* Mobile Sidebar Toggle Button */
    .mobile-sidebar-toggle {
        position: fixed;
        top: 16px;
        left: 16px;
        z-index: 1001;
        width: 40px;
        height: 40px;
        background-color: var(--bg-secondary);
        border: 1px solid var(--border-dark);
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: var(--text-primary);
        transition: all var(--transition-fast);
    }
    
    .mobile-sidebar-toggle:hover {
        background-color: var(--bg-tertiary);
    }
    
    .mobile-sidebar-toggle i {
        width: 24px;
        height: 24px;
    }
    
    /* Main Content - Full Width on Mobile */
    #mainContent {
        width: 100%;
    }
    
    /* Landing Page Adjustments */
    .landing-hero {
        padding: 40px 16px;
        gap: 40px;
    }
    
    .landing-title {
        font-size: 36px;
    }
    
    .landing-tagline {
        font-size: 18px;
        margin-bottom: 32px;
    }
    
    .landing-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
    }
    
    .landing-preview {
        max-width: 100%;
    }
    
    .mock-chat {
        border-radius: var(--radius-lg);
    }
    
    /* Login/Setup Box Adjustments */
    .login-container,
    .setup-container {
        max-width: 100%;
        padding: 0 16px;
    }
    
    .login-box,
    .setup-box {
        padding: 32px 24px;
    }
    
    .login-title,
    .setup-title {
        font-size: 24px;
    }
    
    /* Chat Header Adjustments */
    .chat-header {
        padding: 12px 16px;
    }
    
    #chatRoomName {
        font-size: 18px;
        max-width: 60%;
    }
    
    .voice-buttons {
        gap: 4px;
    }
    
    .voice-btn {
        width: 32px;
        height: 32px;
        padding: 6px;
    }
    
    .voice-btn i {
        width: 18px;
        height: 18px;
    }
    
    /* Chat Messages */
    .chat-messages {
        padding: 16px;
    }
    
    .msg {
        max-width: 85%;
    }
    
    /* Chat Input */
    .chat-input-container {
        padding: 12px 16px;
    }
    
    .chat-input-wrapper {
        padding: 6px;
    }
    
    /* Sidebar Content Adjustments */
    .sidebar-content {
        padding: 12px;
    }
    
    #userProfileBar {
        padding: 12px;
    }
    
    /* Hide some sidebar text on mobile if needed */
    .sidebar-section-title {
        font-size: 11px;
    }
}

/* ===== Small Mobile (<480px) ===== */
@media (max-width: 480px) {
    /* Landing Page */
    .landing-title {
        font-size: 28px;
    }
    
    .landing-tagline {
        font-size: 16px;
    }
    
    .landing-buttons {
        max-width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .mock-messages {
        padding: 16px;
        min-height: 150px;
    }
    
    .mock-avatar {
        width: 32px;
        height: 32px;
    }
    
    .mock-message-author,
    .mock-message-text {
        font-size: 12px;
    }
    
    /* Login/Setup */
    .login-box,
    .setup-box {
        padding: 24px 20px;
    }
    
    .login-title,
    .setup-title {
        font-size: 20px;
    }
    
    .login-subtitle,
    .setup-subtitle {
        font-size: 13px;
    }
    
    .btn-google,
    .btn-finish-setup {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .login-links {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    /* Chat */
    .chat-header {
        padding: 10px 12px;
    }
    
    #chatRoomName {
        font-size: 16px;
        max-width: 50%;
    }
    
    .voice-btn {
        width: 28px;
        height: 28px;
        padding: 4px;
    }
    
    .voice-btn i {
        width: 16px;
        height: 16px;
    }
    
    .chat-messages {
        padding: 12px;
    }
    
    .msg {
        max-width: 90%;
        padding: 6px 10px;
        font-size: 14px;
    }
    
    .avatar {
        width: 28px;
        height: 28px;
    }
    
    .chat-input-container {
        padding: 10px 12px;
    }
    
    .chat-input {
        font-size: 13px;
        padding: 6px 10px;
    }
    
    .chat-attach-btn,
    .chat-send-btn {
        width: 32px;
        height: 32px;
        padding: 6px;
    }
    
    .chat-attach-btn i,
    .chat-send-btn i {
        width: 18px;
        height: 18px;
    }
    
    /* Sidebar */
    #dashboardSidebar {
        width: 200px;
    }
    
    .sidebar-content {
        padding: 10px;
    }
    
    #userProfileBar {
        padding: 10px;
    }
    
    #userEmail {
        font-size: 12px;
    }
    
    #groupName,
    #joinCode {
        padding: 6px 10px;
        font-size: 13px;
    }
    
    #btnCreateGroup,
    #btnJoinGroup {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    /* Mobile Toggle Button */
    .mobile-sidebar-toggle {
        width: 36px;
        height: 36px;
        top: 12px;
        left: 12px;
    }
    
    .mobile-sidebar-toggle i {
        width: 20px;
        height: 20px;
    }
}

/* ===== Desktop (>1200px) - Full Layout ===== */
@media (min-width: 1201px) {
    #dashboardSidebar {
        width: 240px;
    }
    
    .landing-hero {
        max-width: 1400px;
        margin: 0 auto;
    }
    
    .landing-preview {
        max-width: 900px;
    }
}

/* ===== Touch Device Optimizations ===== */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    button,
    .voice-btn,
    .chat-attach-btn,
    .chat-send-btn,
    #btnLogout {
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Remove hover effects on touch devices */
    button:hover,
    .voice-btn:hover,
    .chat-attach-btn:hover,
    .chat-send-btn:hover {
        transform: none;
    }
    
    /* Active states for touch */
    button:active,
    .voice-btn:active {
        transform: scale(0.95);
        opacity: 0.8;
    }
}

/* ===== Landscape Mobile ===== */
@media (max-width: 768px) and (orientation: landscape) {
    .landing-hero {
        min-height: auto;
        padding: 20px;
        gap: 30px;
    }
    
    .landing-title {
        font-size: 32px;
    }
    
    .landing-tagline {
        font-size: 16px;
        margin-bottom: 24px;
    }
    
    .landing-preview {
        max-width: 500px;
    }
    
    .mock-messages {
        min-height: 120px;
    }
}

/* ===== Print Styles ===== */
@media print {
    #dashboardSidebar,
    .chat-input-container,
    .voice-buttons,
    .mobile-sidebar-toggle {
        display: none;
    }
    
    #mainContent {
        width: 100%;
    }
    
    .page {
        display: block !important;
    }
}