/* File: /assets/css/style.css */

:root {
    --primary-bg: #0f0f23;
    --secondary-bg: #1a1a2e;
    --glass-bg: rgba(30, 30, 46, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b0b0d0;
    --accent-purple: #9d4edd;
    --accent-blue: #4361ee;
    --accent-pink: #f72585;
    --accent-neon: #00ff9d;
    --success: #4cc9f0;
    --danger: #ff0054;
    --warning: #ff9e00;
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-dark: linear-gradient(135deg, #141e30 0%, #243b55 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--gradient-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Glassmorphism effects */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    padding: 12px 16px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.glass-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 2px rgba(157, 78, 221, 0.2);
}

/* Button styles */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

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

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

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

.btn-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-icon:hover {
    background: var(--accent-purple);
    transform: translateY(-2px);
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    animation: fadeIn 0.8s ease-out;
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header h1 {
    font-size: 2.5rem;
    background: linear-gradient(45deg, var(--accent-pink), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Home Page */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    z-index: 1000;
}

.app-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--accent-blue), var(--accent-neon));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.partner-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

.status-indicator.offline {
    background: var(--text-secondary);
    animation: none;
}

.main-content {
    padding: 100px 24px 80px;
    max-width: 800px;
    margin: 0 auto;
}

.chat-preview-card {
    padding: 30px;
    margin-bottom: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-preview-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(157, 78, 221, 0.2);
}

.partner-info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.profile-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-purple);
}

.last-message {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 20px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.quick-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.action-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.action-btn:hover .action-icon {
    background: var(--accent-purple);
    transform: scale(1.1);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-around;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.nav-item.active {
    color: var(--accent-purple);
}

.nav-item:hover {
    color: var(--text-primary);
}

/* Chat Page */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--secondary-bg);
}

.chat-header {
    padding: 16px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-partner-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.chat-messages {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
    animation: slideIn 0.3s ease-out;
}

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

.message-bubble.received {
    align-self: flex-start;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-bottom-left-radius: 4px;
}

.message-content {
    word-wrap: break-word;
    margin-bottom: 4px;
}

.message-time {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    text-align: right;
}

.seen-indicator {
    color: var(--accent-blue);
    font-size: 0.75rem;
    margin-left: 4px;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--glass-bg);
    border-radius: 18px;
    width: fit-content;
    border-bottom-left-radius: 4px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

.chat-input-container {
    padding: 16px 24px;
    background: var(--glass-bg);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.message-input {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    resize: none;
}

.attach-btn {
    position: relative;
}

.attach-menu {
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 4px;
    min-width: 150px;
}

.attach-btn:hover .attach-menu {
    display: flex;
}

/* Call Page */
.call-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--gradient-dark);
}

.call-info {
    text-align: center;
    padding: 40px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.call-partner-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-purple);
    margin-bottom: 24px;
}

.call-timer {
    font-size: 3rem;
    font-weight: 300;
    margin: 24px 0;
    font-variant-numeric: tabular-nums;
}

.call-status {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.call-controls {
    padding: 24px;
    display: flex;
    justify-content: center;
    gap: 20px;
    background: var(--glass-bg);
}

.call-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.call-btn.mute {
    background: var(--glass-bg);
    color: white;
    border: 1px solid var(--glass-border);
}

.call-btn.active {
    background: var(--success);
    color: white;
}

.video-container {
    position: relative;
    height: 100vh;
    background: #000;
}

.remote-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.local-video {
    position: absolute;
    bottom: 120px;
    right: 24px;
    width: 160px;
    height: 120px;
    border-radius: 12px;
    border: 2px solid var(--accent-purple);
    object-fit: cover;
    background: #000;
}

/* Files Page */
.files-container {
    padding: 100px 24px 80px;
    max-width: 800px;
    margin: 0 auto;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.file-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-card:hover {
    transform: translateY(-5px);
    background: rgba(157, 78, 221, 0.1);
}

.file-icon {
    font-size: 48px;
    margin-bottom: 8px;
}

.file-name {
    font-size: 0.9rem;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .main-content {
        padding: 90px 16px 70px;
    }
    
    .chat-messages {
        padding: 16px;
    }
    
    .message-bubble {
        max-width: 85%;
    }
    
    .call-btn {
        width: 56px;
        height: 56px;
        font-size: 20px;
    }
    
    .local-video {
        width: 120px;
        height: 90px;
        bottom: 100px;
        right: 16px;
    }
}

@media (max-width: 480px) {
    .quick-actions {
        gap: 12px;
    }
    
    .action-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-purple);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}