:root {
    --primary: #002147;
    --secondary: #1f78c8;
    --accent: #ff8c2f;
    --bg: #f7fafc;
    --text: #222;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 15px;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo img {
    height: 50px;
}

.nav a {
    margin-left: 15px;
    font-weight: 500;
}

.nav .btn-primary {
    padding: 6px 12px;
    border-radius: 4px;
    background: var(--accent);
    color: #fff;
}

.main {
    padding: 20px 0 40px;
}

.hero {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 30px;
    align-items: center;
    margin: 30px 0;
}

.hero h1 {
    font-size: 2.3rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.hero p {
    margin-bottom: 15px;
    line-height: 1.5;
}

.hero-actions a {
    display: inline-block;
    margin-right: 10px;
    padding: 10px 18px;
    border-radius: 4px;
    font-weight: 600;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}

.section {
    margin: 40px 0;
}

.section-title {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--primary);
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(240px,1fr));
    gap: 20px;
}

.card {
    background: #fff;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.card img {
    width: 100%;
    border-radius: 6px;
    object-fit: cover;
    height: 180px;
}

.card h3 {
    margin: 8px 0;
}

.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
}

.badge-lost {
    background: #e53636;
}

.badge-normal {
    background: #10b981;
}

.form-card {
    max-width: 420px;
    margin: 30px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

form label {
    display: block;
    margin-top: 10px;
    font-size: 0.9rem;
    font-weight: 600;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form select,
form textarea {
    width: 100%;
    padding: 8px 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
    margin-top: 4px;
}

form button {
    margin-top: 15px;
    width: 100%;
    padding: 10px 14px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
}

.alert {
    padding: 10px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0,1fr);
    gap: 20px;
}

.pet-list {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.pet-list th,
.pet-list td {
    border-bottom: 1px solid #eee;
    padding: 8px;
}

.pet-photo-mini {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 6px;
}

/* Chat */
.chat-container {
    display: grid;
    grid-template-rows: 1fr auto;
    height: 60vh;
    max-height: 500px;
    border-radius: 8px;
    border: 1px solid #ddd;
    background: #fff;
}

.chat-messages {
    padding: 10px;
    overflow-y: auto;
}

.chat-input {
    border-top: 1px solid #eee;
    padding: 8px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
}

.message {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.message .meta {
    font-size: 0.75rem;
    color: #555;
}

/* Footer */
.footer {
    border-top: 1px solid #eee;
    background: #fff;
    padding: 10px 0;
    font-size: 0.85rem;
    text-align: center;
    color: #555;
}

/* Responsivo */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .topbar .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .nav {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 0.9rem;
    }

    .nav a {
        margin-left: 0;
        padding: 6px 10px;
        border-radius: 4px;
        background: #f1f5f9;
        color: var(--text);
    }

    .nav .btn-primary {
        margin-left: 0;
        background: var(--accent);
        color: #fff;
    }

    .form-card,
    .cards,
    .dashboard-grid,
    .pet-list {
        width: 100%;
    }
}