:root {
    --primary-color: #f26f21;
    --primary-dark: #3a261c;
    --secondary-color: #6c757d;
    /* --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
    --background-gradient: linear-gradient(
        135deg,
        #e11d2e 0%,
        #f59a2b 30%,
        #e7c067 60%,
        #c8902c 100%
    );
    --card-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Nunito', sans-serif;
    background: var(--background-gradient);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.auth-container {
    position: relative;
    z-index: 10;
    width: 100%;
    padding: 2rem 1rem;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    max-width: 450px;
    margin: 0 auto;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.8s ease;
}

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

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

.auth-logo {
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.auth-logo img {
    height: 80px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: var(--transition);
}

.auth-logo img:hover {
    transform: scale(1.05);
}

.login-title {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-title h4 {
    font-weight: 700;
    color: #2c3e50;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-title p {
    color: var(--secondary-color);
    font-size: 1rem;
    font-weight: 400;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-control {
    padding: 1rem 1rem 1rem 3.5rem;
    height: auto;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 400;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(242, 111, 33, 0.15);
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
}

.form-control-icon {
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
    font-size: 1.1rem;
    transition: var(--transition);
    z-index: 5;
}

.form-group:focus-within .form-control-icon {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.password-toggle {
    position: absolute;
    right: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--secondary-color);
    font-size: 1.1rem;
    transition: var(--transition);
    z-index: 5;
}

.password-toggle:hover {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.btn-primary {
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--primary-color), #e85d04);
    border: none;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(242, 111, 33, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark), #2d1810);
    transition: left 0.3s ease;
}

.btn-primary:hover::before {
    left: 0;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(242, 111, 33, 0.4);
}

.btn-primary span {
    position: relative;
    z-index: 2;
}

.btn-primary:disabled {
    background: linear-gradient(135deg, #ccc, #999);
    box-shadow: none;
    transform: none;
    opacity: 0.65;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    display: none;
}

.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.2);
}

.alert .btn-close {
    filter: invert(1);
}

.cf-turnstile {
    margin: 0.5rem 0;
    display: flex;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    .login-title h4 {
        font-size: 1.5rem;
    }

    .form-control {
        padding: 0.8rem 0.8rem 0.8rem 3rem;
    }

    .form-control-icon {
        left: 1rem;
    }

    .password-toggle {
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: 1rem 0.5rem;
    }

    .login-card {
        padding: 1.5rem 1rem;
    }

    .auth-logo img {
        height: 60px;
    }
}

/* Loading Animation */
.loading {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Form Animation */
.form-group {
    animation: slideInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }
.btn-primary { animation: slideInUp 0.6s ease-out 0.4s both; }

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