/**
 * SecureCrypt Toolkit - Main Stylesheet
 * Dark theme, responsive design
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #16161f;
    --bg-input: #1e1e2a;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    
    --accent-primary: #00d4aa;
    --accent-secondary: #00b894;
    --accent-gradient: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
    
    --success: #00d4aa;
    --warning: #ffb84d;
    --error: #ff6b6b;
    --info: #4da6ff;
    
    --border-color: #2a2a3a;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-wrapper {
    display: flex;
    min-height: 100vh;
}

.content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    padding: 30px 0;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
}

.sidebar.open {
    transform: translateX(0);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    padding: 0 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

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

.nav-item.active {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.nav-item .badge {
    margin-left: auto;
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

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

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

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

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-status {
    font-size: 0.75rem;
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 4px;
}

.user-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--success);
    border-radius: 50%;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
}

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

.search-box {
    position: relative;
}

.search-box input {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 8px 12px 8px 36px;
    color: var(--text-primary);
    width: 240px;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
}

.header-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.header-btn .notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--error);
    border-radius: 50%;
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: all var(--transition-fast);
}

.card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.card-body {
    color: var(--text-secondary);
}

.card-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--bg-input);
    border-color: var(--accent-primary);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

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

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

.btn-ghost:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.error {
    border-color: var(--error);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    font-family: var(--font-mono);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0b0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-hint {
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-error {
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--error);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.form-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

/* ============================================
   MESSAGES
   ============================================ */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.message-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.message-item:hover {
    background-color: var(--bg-input);
}

.message-item.unread {
    border-left: 3px solid var(--accent-primary);
}

.message-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    color: var(--bg-primary);
    flex-shrink: 0;
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.message-sender {
    font-weight: 600;
    font-size: 0.95rem;
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.message-preview {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 0.75rem;
}

.message-tag {
    padding: 2px 8px;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    color: var(--text-muted);
}

.message-tag.self-destruct {
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--error);
}

/* Message Detail */
.message-detail {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
}

.message-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.message-detail-sender {
    display: flex;
    align-items: center;
    gap: 12px;
}

.message-detail-body {
    margin-bottom: 20px;
}

.encrypted-block {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    word-break: break-all;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.decrypted-message {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--success);
    border-radius: var(--border-radius);
    padding: 16px;
    font-size: 0.95rem;
    line-height: 1.6;
}

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

/* Compose */
.compose-form {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
}

.recipient-input {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.recipient-input .form-input {
    flex: 1;
}

.compose-options {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

/* ============================================
   CONTACTS
   ============================================ */
.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
}

.contact-card:hover {
    border-color: var(--accent-primary);
}

.contact-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--bg-primary);
}

.contact-info {
    flex: 1;
    min-width: 0;
}

.contact-name {
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-id {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.contact-fingerprint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    margin-top: 4px;
}

.contact-actions {
    display: flex;
    gap: 8px;
}

/* ============================================
   TOOLS GRID
   ============================================ */
.tools-section {
    margin-bottom: 40px;
}

.tools-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.tool-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    color: inherit;
}

.tool-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tool-icon.encrypt {
    background: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
    color: var(--bg-primary);
}

.tool-icon.decrypt {
    background: linear-gradient(135deg, #4da6ff 0%, #2196f3 100%);
    color: white;
}

.tool-icon.hash {
    background: linear-gradient(135deg, #ff9f43 0%, #f39c12 100%);
    color: white;
}

.tool-icon.encode {
    background: linear-gradient(135deg, #a55eea 0%, #8854d0 100%);
    color: white;
}

.tool-icon.password {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5253 100%);
    color: white;
}

.tool-icon.developer {
    background: linear-gradient(135deg, #26de81 0%, #20bf6b 100%);
    color: white;
}

.tool-info {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.tool-description {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Tool Page */
.tool-container {
    max-width: 800px;
    margin: 0 auto;
}

.tool-header {
    margin-bottom: 30px;
}

.tool-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.tool-description-full {
    color: var(--text-secondary);
}

.tool-workspace {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
}

.tool-input-section {
    margin-bottom: 24px;
}

.tool-output-section {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.output-box {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    word-break: break-all;
    min-height: 80px;
    max-height: 300px;
    overflow-y: auto;
}

.output-box.success {
    border-color: var(--success);
}

.output-box.error {
    border-color: var(--error);
    color: var(--error);
}

.tool-options {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

/* ============================================
   SECURITY DASHBOARD
   ============================================ */
.security-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.security-stat {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    text-align: center;
}

.security-stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.security-stat-icon.success {
    background-color: rgba(0, 212, 170, 0.1);
    color: var(--success);
}

.security-stat-icon.warning {
    background-color: rgba(255, 184, 77, 0.1);
    color: var(--warning);
}

.security-stat-icon.error {
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--error);
}

.security-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.security-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.key-display {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    word-break: break-all;
    margin-bottom: 16px;
    max-height: 200px;
    overflow-y: auto;
}

/* ============================================
   LANDING PAGE
   ============================================ */
.landing {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.landing-hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    background: radial-gradient(ellipse at top, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.landing-logo {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
}

.landing-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
}

.landing-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 60px;
}

.landing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    max-width: 900px;
    width: 100%;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius);
}

.feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    flex-shrink: 0;
}

.feature-text {
    text-align: left;
}

.feature-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.feature-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   IDENTITY CREATION
   ============================================ */
.identity-creation {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.identity-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    margin-top: 24px;
}

.identity-field {
    margin-bottom: 24px;
    text-align: left;
}

.identity-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.identity-value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent-primary);
    background-color: var(--bg-input);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    word-break: break-all;
}

.identity-value.user-id {
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
}

.identity-value.fingerprint {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.identity-value.recovery {
    font-size: 0.95rem;
    line-height: 1.8;
}

.identity-warning {
    background-color: rgba(255, 184, 77, 0.1);
    border: 1px solid var(--warning);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 24px;
    text-align: left;
}

.identity-warning-title {
    font-weight: 600;
    color: var(--warning);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.identity-warning-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 40px auto;
}

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

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

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

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

.modal-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.5rem;
    padding: 4px;
    line-height: 1;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   TOASTS / NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--error);
}

.toast.warning {
    border-color: var(--warning);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast.success .toast-icon {
    color: var(--success);
}

.toast.error .toast-icon {
    color: var(--error);
}

.toast.warning .toast-icon {
    color: var(--warning);
}

.toast-message {
    flex: 1;
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

/* ============================================
   TABS
   ============================================ */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-fast);
}

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

.tab.active {
    color: var(--accent-primary);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ============================================
   FILE UPLOAD
   ============================================ */
.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-upload:hover {
    border-color: var(--accent-primary);
    background-color: rgba(0, 212, 170, 0.02);
}

.file-upload.dragover {
    border-color: var(--accent-primary);
    background-color: rgba(0, 212, 170, 0.05);
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.file-upload-text {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

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

.file-upload input {
    display: none;
}

.file-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin-top: 16px;
}

.file-preview-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.file-preview-info {
    flex: 1;
}

.file-preview-name {
    font-weight: 500;
    margin-bottom: 2px;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (min-width: 1024px) {
    .sidebar {
        transform: translateX(0);
    }
    
    .content-wrapper {
        margin-left: 260px;
    }
    
    .menu-toggle {
        display: none;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 12px 16px;
    }
    
    .search-box {
        display: none;
    }
    
    .landing-title {
        font-size: 1.75rem;
    }
    
    .landing-subtitle {
        font-size: 1rem;
    }
    
    .landing-actions {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }
    
    .landing-actions .btn {
        width: 100%;
    }
    
    .landing-features {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .contacts-grid {
        grid-template-columns: 1fr;
    }
    
    .modal {
        width: 95%;
        margin: 10px;
    }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.hidden { display: none !important; }
.visible { display: block !important; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ============================================
   SELECTION
   ============================================ */
::selection {
    background-color: rgba(0, 212, 170, 0.3);
    color: var(--text-primary);
}