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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Animated Gradient Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(45deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%); */
    /* background: linear-gradient(45deg, #6ea3fb 0%, #22edff 25%, #eaf2f3 50%, #6ea3fb 75%, #eaf2f3 100%); */
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Container Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

/* Liquid Glass Card */
.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    max-width: 480px;
    width: 100%;
    animation: fadeInUp 0.8s ease;
}

.glass-card h2 {
    color: #fff;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
}

.glass-card .subtitle {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 0.95rem;
}

/* Form Groups */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
    z-index: 2;
    pointer-events: none;
}

.form-control {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    padding: 0.85rem 1rem 0.85rem 3.2rem;
    color: #fff;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    height: 56px;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    outline: none;
    color: #fff;
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 1.1rem;
    z-index: 2;
    transition: color 0.3s ease;
}

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

/* Remember Me & Forgot Password Row */
.options-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

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

.forgot-link {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    padding: 0.3rem 0.6rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
}

.forgot-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 3D Login Button */
.btn-login {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #2563ff 100%);
    border: none;
    border-radius: 16px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.2s ease;
    transform: translateY(0);
}

.btn-login:hover {
    transform: translateY(-4px);
}

.btn-login:active {
    transform: translateY(6px);
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.5s ease;
}

.btn-login:hover::before {
    left: 100%;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.divider span {
    padding: 0 1rem;
}

/* Register Link */
.register-link {
    text-align: center;
}

.glass-link {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    color: #fff;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.glass-link:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.glass-link strong {
    color: #fff;
    font-weight: 600;
}

/* Error Messages */
.error-message {
    color: #ff6b6b;
    font-size: 0.85rem;
    margin-top: 0.3rem;
    margin-left: 0.5rem;
    display: none;
}

.form-group.error .form-control {
    border-color: #ff6b6b;
}

.form-group.error .error-message {
    display: block;
}

/* Social Login Buttons */
.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-btn {
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    color: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.social-btn i {
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .glass-card {
        padding: 2rem 1.5rem;
    }

    .glass-card h2 {
        font-size: 2rem;
    }

    .options-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 576px) {
    .glass-card {
        padding: 1.5rem 1rem;
        border-radius: 20px;
    }

    .glass-card h2 {
        font-size: 1.75rem;
    }

    .form-control {
        font-size: 0.9rem;
    }

    .social-login {
        grid-template-columns: 1fr;
    }
}