:root {
    --primary-color: #10B981;
    --primary-dark: #059669;
    --primary-hover: #34D399;
    --primary-light: #D1FAE5;
    --bg-light: #F0FDF4;
    --text-dark: #065F46;
}

body {
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.bi-person, .bi-lock {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    padding: 2.5rem;
    animation: slideUp 0.5s ease-out;
}

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

.login-logo {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.login-logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.login-subtitle {
    color: #6B7280;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

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

.form-label {
    display: block;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border: 2px solid #E5E7EB;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--primary-light);
    outline: none;
}

.input-group {
    position: relative;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.input-group i {
    position: absolute;
    left: 1rem;
    color: var(--primary-color);
    z-index: 1000;
}


.loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader {
    width: 120px;
    height: 120px;
    position: relative;
    animation: rotate 2s linear infinite;
}

.loader-hexagon {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-radius: 50%;
    border-top-color: var(--primary-light);
    animation: rotate 3s linear infinite;
}

.loader-hexagon:nth-child(2) {
    border-top-color: var(--primary-hover);
    animation-duration: 2s;
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
}

.loader-hexagon:nth-child(3) {
    border-top-color: white;
    animation-duration: 1s;
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
}

.loader-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 2s ease-in-out infinite;
}

.loader-logo i {
    font-size: 2rem;
    color: white;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
    100% { transform: translate(-50%, -50%) scale(1); }
}

.fade-out {
    opacity: 0;
    visibility: hidden;
}

.input-group .form-control {
    padding-left: 2.75rem;
}

.password-toggle {
    position: absolute;
    right: 2rem;
    background: none;
    border: none;
    color: #9CA3AF;
    cursor: pointer;
    z-index: 5;
    padding: 0.5rem;
    transition: color 0.2s ease;
    margin-bottom: 1.4rem;
}

.password-toggle:hover {
    color: var(--primary-color);
}

.btn-login {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.btn-login:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.error-message {
    background: #FEE2E2;
    border: 1px solid #FCA5A5;
    color: #DC2626;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.remember-me input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 2rem;
    }
}