@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-main: #0b0c10;
    --bg-card: rgba(22, 24, 35, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(140, 124, 240, 0.4);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --primary-color: #6259e8;
    --primary-gradient: linear-gradient(135deg, #6259e8 0%, #8c7cf0 100%);
    --accent-color: #3ed0e6;
    --danger-color: #ef4444;
    --success-color: #10b981;
    --saved-color: #f59e0b;
    --sidebar-width: 320px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background: radial-gradient(circle at 50% 50%, #1e1e30 0%, #0b0c10 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #a397ff;
}

/* Authentication Page Styles */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.5s ease-out;
}

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

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #a397ff 0%, #3ed0e6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #8c7cf0;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(140, 124, 240, 0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 15px;
    padding: 14px 24px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 8px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 12px rgba(98, 89, 232, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(98, 89, 232, 0.5);
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--text-secondary);
}

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

.btn-danger:hover {
    filter: brightness(1.1);
}

.btn-block {
    display: flex;
    width: 100%;
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid transparent;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: #34d399;
    border-color: rgba(16, 185, 129, 0.2);
}

/* Main Dashboard UI */
.dashboard-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: rgba(15, 16, 22, 0.95);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    font-size: 16px;
    box-shadow: 0 4px 10px rgba(98, 89, 232, 0.3);
}

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

.username {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

.user-status {
    font-size: 12px;
    color: var(--text-secondary);
}

.logout-icon {
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    transition: color 0.2s;
}

.logout-icon:hover {
    color: var(--danger-color);
}

.sidebar-actions {
    padding: 16px 24px;
}

.sidebar-search {
    padding: 0 24px 12px 24px;
}

.project-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 0 12px;
}

.project-list-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 12px 12px 8px 12px;
}

.project-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    cursor: pointer;
    margin-bottom: 4px;
    transition: all 0.2s;
    gap: 12px;
}

.project-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.project-item.active {
    background: rgba(98, 89, 232, 0.15);
    border-left: 3px solid var(--primary-color);
}

.project-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-primary);
}

.project-item.active .project-icon {
    background: var(--primary-color);
}

.project-details {
    flex: 1;
    overflow: hidden;
}

.project-name {
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-desc-snippet {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Chat Main Panel */
.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #0f1015;
    position: relative;
}

.no-project-selected {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex: 1;
    text-align: center;
    color: var(--text-secondary);
    padding: 40px;
}

.no-project-selected i {
    font-size: 64px;
    margin-bottom: 20px;
    color: var(--primary-color);
    opacity: 0.6;
}

.no-project-selected h2 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

/* Chat Header */
.chat-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 16, 22, 0.8);
    backdrop-filter: blur(12px);
    z-index: 10;
}

.chat-project-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chat-project-title {
    font-size: 18px;
    font-weight: 600;
}

.chat-project-meta {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-container {
    position: relative;
}

.search-input {
    width: 220px;
    padding: 8px 12px 8px 36px;
    font-size: 14px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all 0.3s;
}

.search-input:focus {
    width: 300px;
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 14px;
}

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

/* Message Cards */
.message-card {
    display: flex;
    gap: 14px;
    max-width: 80%;
    animation: messageSlideIn 0.3s ease-out;
    position: relative;
    padding: 12px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    transition: all 0.2s;
    align-self: flex-start;
}

.message-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color);
}

.message-card.my-message {
    align-self: flex-end;
    background: rgba(98, 89, 232, 0.08);
}

.message-card.my-message:hover {
    background: rgba(98, 89, 232, 0.12);
    border-color: rgba(98, 89, 232, 0.2);
}

.message-card.saved {
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.03);
}

.message-card.saved.my-message {
    background: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.4);
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    flex-shrink: 0;
}

.message-card.my-message .message-avatar {
    background: var(--primary-color);
}

.message-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.message-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.message-sender {
    font-weight: 600;
    color: var(--text-primary);
}

.message-time {
    color: var(--text-secondary);
}

.message-text {
    font-size: 14.5px;
    line-height: 1.5;
    color: var(--text-primary);
    word-break: break-word;
}

.message-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    position: absolute;
    right: 12px;
    top: -12px;
    background: #1c1d24;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: opacity 0.2s;
}

.message-card:hover .message-actions {
    opacity: 1;
}

.msg-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.msg-btn:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

.msg-btn.save-active {
    color: var(--saved-color) !important;
}

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

/* Chat Input Area */
.chat-input-container {
    padding: 24px;
    background: rgba(15, 16, 22, 0.8);
    border-top: 1px solid var(--border-color);
}

.chat-input-form {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.chat-textarea {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    resize: none;
    height: 50px;
    min-height: 50px;
    max-height: 150px;
    transition: all 0.3s ease;
}

.chat-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

/* Modal Drawer / Dialog for Project Creation */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    z-index: 100;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-box {
    background: #171821;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}