:root {
    --primary: #fee801; /* Amarelo Vibrante da nova paleta */
    --primary-hover: #ffd700;
    --bg-dark: #00060e; /* Preto Azulado Profundo */
    --brand-olive: #9a9f17;
    --brand-sky: #54c1e6;
    --brand-teal: #39c4b6;
    --card-bg: rgba(0, 6, 14, 0.85);
    --text-main: #ffffff;
    --text-muted: #54c1e6; /* Usando o azul para textos secundários */
    --error: #fb7185;
    --success: #39c4b6;
    --glass-border: rgba(84, 193, 230, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(0, 6, 14, 0.8) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(254, 232, 1, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(84, 193, 230, 0.15) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(57, 196, 182, 0.1) 0px, transparent 50%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    animation: fadeIn 0.8s ease-out;
}

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

.login-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.brand-header {
    text-align: center;
    margin-bottom: 40px;
}

.brand-header img {
    max-width: 120px;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.3));
}

.brand-header h1 {
    color: var(--text-main);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand-header p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 8px;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    margin-left: 4px;
}

.form-group input {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 16px;
    color: var(--text-main);
    font-size: 16px;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
    background: rgba(15, 23, 42, 0.8);
}

.btn-submit {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-submit:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

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

.btn-register-highlight {
    background: #fee801; /* Amarelo Vibrante sólido */
    color: #00060e; /* Texto preto azulado para contraste */
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 16px;
    padding: 22px;
    border: none;
    border-radius: 18px;
    box-shadow: 0 0 30px rgba(254, 232, 1, 0.4);
    margin-top: 20px;
    font-weight: 900;
}

.btn-register-highlight:hover {
    box-shadow: 0 0 45px rgba(254, 232, 1, 0.6);
    transform: scale(1.03);
    background: #ffd700;
}

.btn-login {
    padding: 16px;
    background: rgba(252, 209, 22, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--primary);
}

.btn-login:hover {
    background: rgba(252, 209, 22, 0.1);
}

.registration-upsell {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.registration-upsell p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 15px;
}

.btn-secondary {
    width: 100%;
    background: #fee801;
    color: #00060e;
    border: none;
    border-radius: 15px;
    padding: 20px;
    font-size: 15px;
    font-weight: 900;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 20px rgba(254, 232, 1, 0.3);
}

.btn-secondary:hover {
    background: #ffd700;
    box-shadow: 0 0 35px rgba(254, 232, 1, 0.5);
    transform: scale(1.03);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-footer {
    margin-top: 32px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.form-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.form-footer a:hover {
    color: var(--primary-hover);
}

.message {
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
    text-align: center;
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: block;
}

.message.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
    display: block;
}

/* Toggle Views */
#register-form {
    display: none;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-left: 10px;
    vertical-align: middle;
}

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