*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --accent: #2d6a4f; --bg: #f5f3ef; --surface: #fff; --text: #1a1916; --muted: #6b6860; --border: rgba(0,0,0,0.08); }
body { 
    background: var(--bg); font-family: 'Plus Jakarta Sans', sans-serif; color: var(--text); 
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
    background-image: radial-gradient(circle at 10% 20%, rgba(45,106,79,0.05) 0%, transparent 40%), radial-gradient(circle at 90% 80%, rgba(26,95,180,0.05) 0%, transparent 40%);
}
.login-card {
    background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.5); padding: 40px 32px; border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.04); width: 100%; max-width: 400px;
    text-align: center; margin: 20px;
}
.brand-icon { font-size: 48px; margin-bottom: 16px; line-height: 1; }
.title { font-size: 24px; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.subtitle { font-size: 14px; color: var(--muted); margin-bottom: 32px; }

.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-control { 
    width: 100%; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--border); 
    background: rgba(255,255,255,0.8); font-family: inherit; font-size: 14px; transition: all 0.2s; 
}
.form-control:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(45,106,79,0.1); }

.btn-login { 
    width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 12px; 
    font-size: 15px; font-weight: 700; cursor: pointer; transition: transform 0.1s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(45,106,79,0.25); margin-top: 10px;
}
.btn-login:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(45,106,79,0.3); }
.btn-login:active { transform: translateY(1px); }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 20px; font-size: 13px; font-weight: 600; text-align: left; }
.alert-error { background: #fdf0ef; color: #c0392b; border: 1px solid rgba(192,57,43,0.1); }

.back-link { display: inline-block; margin-top: 24px; font-size: 13px; font-weight: 600; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.back-link:hover { color: var(--accent); }