/* ===================================
   Modern Login Page Styles
   =================================== */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
    animation: gradientShift 8s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(20deg); }
}

/* Floating Shapes */
.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite ease-in-out;
}

.shape:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 50%;
    right: -50px;
    animation-delay: -5s;
}

.shape:nth-child(3) {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 50px 40px;
    animation: slideUp 0.6s ease-out;
}

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

/* Logo & Header */
.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.login-title {
    font-size: 28px;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 14px;
    color: #718096;
}

/* Form Styles */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #4a5568;
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #a0aec0;
    font-size: 18px;
    z-index: 1;
    transition: color 0.3s;
    pointer-events: none;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.3s;
    z-index: 2;
}

.eye-icon {
    width: 20px;
    height: 20px;
    color: #a0aec0;
    transition: color 0.3s;
}

.password-toggle:hover {
    background: rgba(102, 126, 234, 0.1);
}

.password-toggle:hover .eye-icon {
    color: #667eea;
}

.password-toggle:active {
    transform: translateY(-50%) scale(0.95);
}

.form-input {
    width: 100%;
    padding: 14px 50px 14px 48px;
    font-size: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    outline: none;
    transition: all 0.3s ease;
    background: #f7fafc;
}

#password-text.form-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 14px 50px 14px 48px !important;
    font-size: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    outline: none;
    background: #f7fafc;
    visibility: hidden;
    z-index: 0;
    box-sizing: border-box;
}

#password-text.form-input.visible {
    visibility: visible;
}

.form-input:focus {
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input:focus + .input-icon,
.form-input:focus ~ .input-icon {
    color: #667eea;
}

/* Remember Me & Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #667eea;
    cursor: pointer;
}

.forgot-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.forgot-link:hover {
    color: #764ba2;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(102, 126, 234, 0.5);
}

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

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: 10px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.divider span {
    padding: 0 15px;
    font-size: 12px;
    color: #a0aec0;
}

/* Footer Links */
.form-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.form-footer p {
    font-size: 14px;
    color: #718096;
}

.form-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

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

/* Error Message */
.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
    animation: shake 0.5s ease-in-out;
}

.error-message.show {
    display: block;
}

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

/* Success Message */
.success-message {
    background: #c6f6d5;
    color: #2f855a;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
}

.success-message.show {
    display: block;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 25px;
        border-radius: 16px;
    }

    .login-title {
        font-size: 24px;
    }

    .form-input {
        padding: 12px 12px 12px 44px;
        font-size: 14px;
    }

    .form-input[type="password"] {
        padding-right: 45px;
    }

    .submit-btn {
        padding: 14px;
        font-size: 15px;
    }

    .password-toggle {
        right: 10px;
        font-size: 16px;
    }
}

/* Tip Text */
.tip-text {
    font-size: 12px;
    color: #a0aec0;
    text-align: center;
    margin-top: 20px;
}