/* login.css - Dark Cyan Theme */
:root {
    --primary-dark: #006064;
    --primary: #00838f;
    --primary-light: #4fb3bf;
    --primary-very-light: #e0f7fa;
    --accent: #00acc1;
    --text-light: #ffffff;
    --text-dark: #37474f;
    --background: #004d4d;
    --error-bg: #ffebee;
    --error-text: #c62828;
    --shadow: 0 8px 20px rgba(0, 77, 64, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--background) 0%, #006666 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: var(--primary-dark);
    font-size: 2em;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-dark);
    font-size: 0.9em;
    opacity: 0.8;
}

.login-form {
    margin-bottom: 25px;
}

.input-group {
    margin-bottom: 25px;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--primary-dark);
    font-weight: 500;
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 14px 40px 14px 15px;
    border: 2px solid #e0f2f1;
    border-radius: 12px;
    font-size: 1em;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 131, 143, 0.1);
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 42px;
    color: var(--primary);
    font-size: 1.2em;
}

/* Security Key Boxes */
.security-boxes {
    display: flex;
    gap: 8px;
    justify-content: space-between;
}

.security-box {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 1.5em;
    font-weight: 600;
    border: 2px solid #b2ebf2;
    border-radius: 12px;
    background: white;
    transition: all 0.3s ease;
    color: var(--primary-dark);
}

.security-box:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.2);
    transform: scale(1.05);
}

.security-box::-webkit-inner-spin-button,
.security-box::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Error Message */
.error-message {
    background: var(--error-bg);
    border-left: 4px solid var(--error-text);
    border-radius: 8px;
    padding: 12px 15px;
    margin: 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.error-icon {
    font-size: 1.2em;
}

.error {
    color: var(--error-text);
    font-size: 0.9em;
    margin: 0;
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 15px;
    box-shadow: 0 4px 15px rgba(0, 96, 100, 0.3);
}

.login-btn:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 96, 100, 0.4);
}

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

/* Footer Links */
.login-footer {
    text-align: center;
    margin-top: 25px;
    border-top: 1px solid #e0f2f1;
    padding-top: 25px;
}

.forgot-link {
    display: inline-block;
    color: var(--primary-dark);
    text-decoration: none;
    font-size: 0.95em;
    margin-bottom: 15px;
    padding: 5px 10px;
    border-radius: 20px;
    transition: all 0.3s ease;
    background: var(--primary-very-light);
}

.forgot-link:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-2px);
}

.register-section {
    color: var(--text-dark);
    font-size: 0.95em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    flex-wrap: wrap;
}

.register-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.register-link:hover {
    background: var(--primary-very-light);
    transform: translateX(3px);
}

.security-note {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px dashed var(--primary-light);
}

.security-note p {
    color: var(--text-dark);
    font-size: 0.85em;
    opacity: 0.7;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .security-box {
        width: 40px;
        height: 50px;
        font-size: 1.2em;
    }
    
    .login-header h2 {
        font-size: 1.8em;
    }
}

/* Animation for form elements */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.input-group, .login-btn, .login-footer {
    animation: fadeInUp 0.5s ease forwards;
}

.input-group:nth-child(1) { animation-delay: 0.1s; }
.input-group:nth-child(2) { animation-delay: 0.2s; }
.login-btn { animation-delay: 0.3s; }
.login-footer { animation-delay: 0.4s; }