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

:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --danger: #e53e3e;
    --danger-dark: #c53030;
    --success: #38a169;
    --gray-50: #f7fafc;
    --gray-100: #edf2f7;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e0;
    --gray-400: #a0aec0;
    --gray-500: #718096;
    --gray-600: #4a5568;
    --gray-700: #2d3748;
    --gray-800: #1a202c;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--gray-700);
    line-height: 1.6;
}

/* Login Screen */
#login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: white;
    padding: 48px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    margin-bottom: 32px;
}

.logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 32px;
    font-weight: bold;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.logo-icon.small {
    width: 36px;
    height: 36px;
    font-size: 18px;
    border-radius: 8px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.logo p {
    font-size: 14px;
    color: var(--gray-500);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.error-message {
    color: var(--danger);
    font-size: 13px;
    margin-top: -12px;
    margin-bottom: 16px;
    min-height: 20px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-200);
}

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

.btn-danger:hover:not(:disabled) {
    background: var(--danger-dark);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    background: transparent;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--gray-500);
    border-radius: 8px;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Footer Links */
.footer-links {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
    font-size: 13px;
    color: var(--gray-500);
}

.footer-links a {
    color: var(--primary);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

.footer-links span {
    margin: 0 8px;
}

/* Navbar */
.navbar {
    background: white;
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 10;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--gray-800);
}

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

#user-name {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

/* Account Menu */
.account-menu {
    position: absolute;
    top: 60px;
    right: 16px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    z-index: 20;
    overflow: hidden;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: white;
    color: var(--gray-700);
    font-size: 14px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
}

.menu-item:hover {
    background: var(--gray-50);
}

.menu-item.danger {
    color: var(--danger);
}

.menu-item.danger:hover {
    background: #fff5f5;
}

/* Main Content */
.main-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px;
}

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

.dashboard-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.dashboard-header p {
    color: rgba(255, 255, 255, 0.8);
}

/* Info Cards */
.info-cards {
    display: grid;
    gap: 24px;
}

.info-card {
    background: white;
    padding: 28px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.danger-card {
    border: 1px solid #fed7d7;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.card-icon.blue {
    background: #ebf8ff;
    color: #3182ce;
}

.card-icon.green {
    background: #f0fff4;
    color: #38a169;
}

.card-icon.red {
    background: #fff5f5;
    color: var(--danger);
}

.info-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.info-card p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.card-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.card-link:hover {
    text-decoration: underline;
}

.danger-link {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 0;
}

.danger-link:hover {
    text-decoration: underline;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 450px;
    position: relative;
    z-index: 101;
    animation: modalSlide 0.2s ease-out;
}

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

.modal-header {
    padding: 24px 24px 0;
    text-align: center;
}

.warning-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
}

.modal-body {
    padding: 20px 24px;
}

.warning-text {
    background: #fffaf0;
    border: 1px solid #fbd38d;
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--gray-700);
    margin-bottom: 20px;
}

.modal-footer {
    padding: 0 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Contact Modal */
.contact-item {
    margin-top: 16px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 8px;
}

.contact-item a {
    color: var(--primary);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-800);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 200;
    animation: toastSlide 0.3s ease-out;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--danger);
}

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Responsive */
@media (max-width: 600px) {
    .login-container {
        padding: 32px 24px;
    }

    .navbar {
        padding: 12px 16px;
    }

    .main-content {
        padding: 24px 16px;
    }

    .dashboard-header h2 {
        font-size: 24px;
    }

    .info-card {
        padding: 20px;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }
}