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

:root {
    --primary: #f56738;
    --primary-hover: #d94616;
    --dark: #191f23;
    --white: #ffffff;
    --light-bg: #fafafa;
    --border: #c1c7cd;
    --border-light: #e8ebed;
    --font: 'Inter', Arial, sans-serif;
    --green: #22c55e;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font);
    background: var(--light-bg);
    color: var(--dark);
    -webkit-font-smoothing: antialiased;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 44px 36px;
    box-shadow: 0 8px 32px rgba(25,31,35,0.08);
}

.logo {
    text-align: center;
    margin-bottom: 32px;
}

.logo-img {
    height: 48px;
    width: auto;
    display: block;
    margin: 0 auto 8px;
}

.logo p {
    font-size: 14px;
    color: #6c757d;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--light-bg);
    border: 1.5px solid var(--border-light);
    border-radius: 8px;
    color: var(--dark);
    font-size: 14px;
    font-family: var(--font);
    transition: all 0.2s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(245,103,56,0.1);
    background: var(--white);
}

.form-group input::placeholder {
    color: #adb5bd;
}

.error-msg {
    background: #fff5f5;
    border: 1px solid rgba(220,53,69,0.2);
    color: #dc3545;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 18px;
    text-align: center;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-login:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(245,103,56,0.25);
}

.footer-text {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: #adb5bd;
}

.footer-text a {
    color: var(--green);
    text-decoration: none;
    font-weight: 700;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 28px;
    border-bottom: 2px solid var(--border-light);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    padding: 10px 0;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    color: #adb5bd;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-btn:hover:not(.active) {
    color: var(--dark);
}

.form-panel { display: none; }
.form-panel.active { display: block; }

.success-msg {
    background: #f0fdf4;
    border: 1px solid rgba(34,197,94,0.2);
    color: #16a34a;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 18px;
    text-align: center;
}

@media (max-width: 480px) {
    .login-card { margin: 16px; padding: 32px 24px; }
}