:root {
    --blue: #1a3a5c;
    --blue-light: #2d5f8a;
    --white: #ffffff;
    --gray-bg: #f5f5f5;
    --text: #222222;
    --error: #c0392b;
    --success: #27ae60;
    --border: #cccccc;
    --focus: #f39c12;
}

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

html { font-size: 18px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: var(--gray-bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { max-width: 640px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }

/* Header */
header {
    background: var(--blue);
    color: var(--white);
    padding: 1rem 0;
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header h1 { font-size: 1.5rem; }
header nav { display: flex; gap: 1rem; align-items: center; font-size: 0.9rem; }
header nav a { color: var(--white); text-underline-offset: 3px; }

/* Main */
main { flex: 1; padding: 2rem 0; }

/* Login box */
.login-box, .error-page {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}
.login-box h2, .error-page h2 { margin-bottom: 0.5rem; font-size: 1.4rem; }
.subtitle { margin-bottom: 1.5rem; color: #555; font-size: 0.95rem; }

label {
    display: block;
    text-align: left;
    margin: 1rem 0 0.25rem;
    font-weight: 600;
    font-size: 1rem;
}
input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 0.8rem;
    font-size: 1.1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: border-color 0.2s;
}
input:focus {
    outline: none;
    border-color: var(--focus);
    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.25);
}

button, .button {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.9rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}
button:hover, .button:hover { background: var(--blue-light); }
button:focus, .button:focus {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

.error {
    background: #fdecea;
    color: var(--error);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.magic-link-box {
    background: #e8f5e9;
    border: 2px dashed var(--success);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}
.magic-link {
    display: block;
    word-break: break-all;
    font-size: 0.9rem;
    color: var(--blue);
    margin: 0.5rem 0;
}

/* Dashboard */
.dashboard h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.dashboard > p { margin-bottom: 1.5rem; }

.card {
    background: white;
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    margin-bottom: 1rem;
    text-align: left;
}
.card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }

.help {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #777;
}

/* Footer */
footer {
    background: var(--blue);
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 1rem 0;
    font-size: 0.8rem;
}

/* Focus visible for keyboard nav */
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* Responsive */
@media (max-width: 480px) {
    html { font-size: 16px; }
    .login-box, .error-page { padding: 1.5rem; }
}