/* =======================
   login.css - Complete Styles
   ======================= */

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" fill-opacity="1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
    z-index: -1;
}

/* Login Container */
.login-container {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.95);
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 450px;
    transition: all 0.3s ease;
    padding: 2rem;
}

@media (max-width: 640px) {
    .login-container {
        margin: 1rem;
        padding: 1.5rem;
    }
}

/* Login Header */
.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-header h2 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1f2937;
}

@media (min-width: 640px) {
    .login-header h2 {
        font-size: 1.875rem;
    }
}

.login-header p {
    font-size: 0.875rem;
    color: #4b5563;
    margin-top: 0.5rem;
}

@media (min-width: 640px) {
    .login-header p {
        font-size: 1rem;
    }
}

/* Error Message */
.error-message {
    background-color: #fee2e2;
    border-left: 4px solid #ef4444;
    color: #dc2626;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    animation: shake 0.5s ease-in-out;
}

@media (min-width: 640px) {
    .error-message {
        font-size: 1rem;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

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

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

.form-group label {
    font-weight: 500;
    color: #374151;
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .form-group label {
        font-size: 1rem;
    }
}

.form-group input {
    width: 100%;
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

@media (min-width: 640px) {
    .form-group input {
        font-size: 1rem;
        padding: 0.5rem 1rem;
    }
}

.form-group input:focus {
    outline: none;
    ring: 2px solid #667eea;
    border-color: transparent;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

/* Password Wrapper */
.password-wrapper {
    position: relative;
    width: 100%;
}

.password-wrapper input {
    padding-right: 2.5rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.125rem;
    color: #6b7280;
    transition: color 0.2s ease;
}

.password-toggle:hover {
    color: #374151;
}

/* Form Options */
.form-options {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    gap: 0.5rem;
}

@media (min-width: 640px) {
    .form-options {
        flex-direction: row;
        gap: 0;
    }
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.remember-me input {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.remember-me label {
    color: #374151;
    cursor: pointer;
}

.forgot-link {
    color: #4f46e5;
    text-decoration: none;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    color: #4338ca;
}

/* Login Button */
.login-button {
    width: 100%;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    font-weight: 600;
    padding: 0.625rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .login-button {
        font-size: 1rem;
        padding: 0.625rem;
    }
}

.login-button:hover {
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.7);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #4338ca, #6d28d9);
}

.login-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Register Link */
.register-link {
    margin-top: 1.5rem;
    padding-top: 1rem;
    text-align: center;
    font-size: 0.875rem;
    color: #4b5563;
    border-top: 1px solid #e5e7eb;
}

@media (min-width: 640px) {
    .register-link {
        font-size: 1rem;
    }
}

.register-link a {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    display: inline-block;
    margin-left: 0.25rem;
    transition: all 0.3s ease;
}

.register-link a:hover {
    box-shadow: 0 8px 20px rgba(118, 75, 162, 0.3);
    transform: translateY(-2px);
}

/* Loading Indicator */
.loading {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    z-index: 1000;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .loading {
        flex-direction: row;
        font-size: 1rem;
    }
}

.loading-spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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