/* ===== CSS Variables ===== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #475569;
    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-2: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

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

::-webkit-scrollbar-track {
    background: var(--dark-light);
}

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

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

/* ===== Login Page ===== */
.login-page {
    background: var(--dark);
    background-image: 
        radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 440px;
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 50px 40px;
    box-shadow: var(--shadow);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.login-header .logo {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: 0 10px 40px rgba(99, 102, 241, 0.6);
    }
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.login-form label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.login-form label i {
    color: var(--primary-light);
}

.login-form input {
    width: 100%;
    padding: 16px 18px;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

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

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 50px;
}

.toggle-password {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 5px;
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--primary-light);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
}

.error-message.show {
    display: block;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: var(--gradient-1);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
}

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

.login-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 13px;
}

/* ===== Dashboard Page ===== */
.dashboard-page {
    background: var(--dark);
    min-height: 100vh;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    gap: 20px;
}

.loading-overlay.hidden {
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--dark-lighter);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

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

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--dark-light);
    border: 1px solid var(--glass-border);
    padding: 16px 24px;
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    transform: translateX(150%);
    transition: var(--transition);
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.info {
    border-left: 4px solid var(--secondary);
}

/* ===== Navbar ===== */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-brand i {
    font-size: 24px;
    -webkit-text-fill-color: var(--primary);
}

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

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--dark-lighter);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.nav-btn.logout-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
}

/* ===== Dashboard Content ===== */
.dashboard-content {
    padding: 30px;
    max-width: 1600px;
    margin: 0 auto;
}

/* ===== Search Container ===== */
.search-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 20px;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 14px 50px 14px 50px;
    background: var(--dark-light);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.clear-search {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--dark-lighter);
    border: none;
    color: var(--text-muted);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: var(--transition);
}

.clear-search:hover {
    background: var(--danger);
    color: white;
}

.record-count {
    background: var(--gradient-1);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
}

/* ===== Table Container ===== */
.table-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark-lighter) 100%);
}

.data-table th {
    padding: 18px 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
}

.copy-header-icon {
    font-size: 10px;
    margin-left: 6px;
    opacity: 0.5;
}

.data-table td {
    padding: 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--dark-lighter);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== Copy Button ===== */
.copy-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.copy-btn {
    background: var(--dark-lighter);
    border: none;
    color: var(--text-muted);
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: var(--transition);
    flex-shrink: 0;
}

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

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

/* ===== Verified Toggle ===== */
.verified-toggle {
    position: relative;
    width: 50px;
    height: 26px;
}

.verified-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.verified-toggle .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark-lighter);
    transition: var(--transition);
    border-radius: 26px;
}

.verified-toggle .slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    transition: var(--transition);
    border-radius: 50%;
}

.verified-toggle input:checked + .slider {
    background: var(--success);
}

.verified-toggle input:checked + .slider:before {
    transform: translateX(24px);
}

.verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.verified-badge.verified {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

.verified-badge.not-verified {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

/* ===== Action Buttons ===== */
.action-btns {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: var(--transition);
}

.action-btn.edit {
    background: rgba(14, 165, 233, 0.15);
    color: var(--secondary);
}

.action-btn.edit:hover {
    background: var(--secondary);
    color: white;
}

.action-btn.delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

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

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 14px;
}

/* ===== Modals ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--dark-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 550px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease-out;
}

.modal-content.modal-large {
    max-width: 700px;
}

.modal-content.modal-small {
    max-width: 400px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal-header h2 {
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-header h2 i {
    color: var(--primary);
}

.modal-header.delete-header h2 i {
    color: var(--danger);
}

.close-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--dark-lighter);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

/* ===== Entry Form ===== */
.entry-form {
    padding: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.entry-form .form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.entry-form .form-group label i {
    color: var(--primary-light);
}

.entry-form input[type="text"],
.entry-form input[type="email"] {
    width: 100%;
    padding: 14px 16px;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.entry-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.checkbox-group {
    display: flex;
    align-items: flex-end;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 15px;
    color: var(--text-primary);
    padding: 14px 16px;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    width: 100%;
    transition: var(--transition);
}

.checkbox-label:hover {
    border-color: var(--success);
}

.checkbox-label input {
    width: 20px;
    height: 20px;
    accent-color: var(--success);
}

.checkbox-label i {
    color: var(--success);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding-top: 10px;
    border-top: 1px solid var(--dark-lighter);
    margin-top: 10px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: var(--dark);
    color: var(--text-primary);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 5px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(239, 68, 68, 0.4);
}

/* ===== Bulk Upload ===== */
.bulk-upload-content {
    padding: 24px;
}

.upload-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.tab-btn {
    flex: 1;
    padding: 14px 20px;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
}

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

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.file-upload-area {
    border: 2px dashed var(--dark-lighter);
    border-radius: var(--radius);
    padding: 50px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.file-upload-area i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.file-upload-area h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.file-upload-area p {
    color: var(--text-muted);
    font-size: 14px;
}

.file-upload-area input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

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

.file-info i {
    color: var(--success);
    font-size: 24px;
}

.file-info span {
    flex: 1;
    font-size: 14px;
}

.file-info button {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 16px;
    padding: 5px;
}

.paste-instructions {
    background: var(--dark);
    padding: 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.paste-instructions p {
    margin-bottom: 6px;
}

.paste-instructions p:last-child {
    margin-bottom: 0;
}

#pasteData {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 13px;
    resize: vertical;
    transition: var(--transition);
}

#pasteData:focus {
    outline: none;
    border-color: var(--primary);
}

.bulk-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--dark-lighter);
}

/* ===== Delete Modal ===== */
.delete-content {
    padding: 30px 24px;
    text-align: center;
}

.delete-content p {
    font-size: 16px;
    margin-bottom: 10px;
}

.delete-warning {
    color: var(--text-muted);
    font-size: 14px !important;
}

.delete-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    padding: 20px 24px;
    border-top: 1px solid var(--dark-lighter);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .nav-actions {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-btn span {
        display: none;
    }
    
    .nav-btn {
        padding: 12px;
    }
    
    .dashboard-content {
        padding: 16px;
    }
    
    .search-container {
        flex-direction: column;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 900px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 10px;
    }
    
    .login-card {
        padding: 30px 24px;
    }
}

@media (max-width: 480px) {
    .login-header .logo {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .login-header h1 {
        font-size: 22px;
    }
    
    .toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
}