@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

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

:root {
    --primary-color: #2BD9B9;
    --primary-dark: #26BFA3;
    --dark-bg: #1A1A1A;
    --darker-bg: #0F0F0F;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --teal-gradient: linear-gradient(135deg, #2BD9B9 0%, #26BFA3 100%);
    --input-bg: #252525;
    --input-border: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

.auth-container {
    width: 100%;
    max-width: 480px;
    animation: fadeInUp 0.6s ease-out;
}

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

.auth-box {
    background: var(--dark-bg);
    border-radius: 20px;
    padding: 48px 40px;
    
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--teal-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 24px;
    color: #000;
}

.logo-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.auth-title {
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-label i {
    font-size: 16px;
}

.input-wrapper {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
    outline: none;
}

.form-input::placeholder {
    color: var(--text-secondary);
}

.form-input:focus {
    border-color: var(--primary-color);
    
}

.input-wrapper .form-input {
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

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

.toggle-password i {
    font-size: 18px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--input-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--teal-gradient);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    color: #000;
    font-weight: bold;
    font-size: 12px;
}

.link-gold {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.link-gold:hover {
    color: var(--primary-dark);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--teal-gradient);
    color: #000;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    
}

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

.btn-submit i {
    font-size: 18px;
}

.divider {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    position: relative;
    margin: 24px 0;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--input-border);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.auth-footer {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-copyright {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 32px;
}

.btn-submit.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-submit.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid #000;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: 8px;
}

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

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-message i {
    font-size: 16px;
}

.success-message {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

@media (max-width: 640px) {
    .auth-box {
        padding: 36px 24px;
    }

    .auth-title {
        font-size: 18px;
    }

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

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