/* ===================================
   LOGIN PAGE STYLES
   =================================== */

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

:root {
    --primary: #10B981;
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-300: #D1D5DB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition-fast: 150ms ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #D1FAE5 0%, #DBEAFE 100%);
    min-height: 100vh;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: white;
    border-radius: var(--radius-xl);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

/* Logo */
.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    animation: bounce 1s ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.login-logo svg {
    width: 60px;
    height: 60px;
}

/* Title */
.login-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* Form */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-align: left;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--gray-900);
    background: white;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary), #059669);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

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

/* Error Message */
.error-message {
    display: none;
    padding: 0.875rem;
    background: #FEE2E2;
    color: #991B1B;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid #FECACA;
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Demo Credentials */
.demo-credentials {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-lg);
}

.demo-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.demo-info {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0.25rem 0;
}

.demo-info strong {
    color: var(--primary);
    font-family: monospace;
}

/* Back Link */
.back-link {
    display: inline-block;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--primary);
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 2rem 1.5rem;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
}