/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a5276;
    --primary-light: #2980b9;
    --primary-dark: #0e3a55;
    --accent: #27ae60;
    --accent-hover: #219a52;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --bg: #f0f4f8;
    --card-bg: #ffffff;
    --text: #2c3e50;
    --text-light: #5d6d7e;
    --border: #dce4ec;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== HEADER ===== */
.header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: white;
    padding: 28px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    backdrop-filter: blur(10px);
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text p {
    font-size: 0.85rem;
    opacity: 0.85;
    font-weight: 300;
}

.header-stats {
    display: flex;
    gap: 24px;
}

.stat-item {
    text-align: center;
    background: rgba(255,255,255,0.1);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(10px);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
}

.stat-label {
    font-size: 0.75rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== SEARCH SECTION ===== */
.search-section {
    padding: 28px 0 12px;
    background: white;
    border-bottom: 1px solid var(--border);
}

.search-box {
    position: relative;
    margin-bottom: 16px;
}

.search-box input {
    width: 100%;
    padding: 16px 50px 16px 50px;
    border: 2px solid var(--border);
    border-radius: 50px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-light);
    background: white;
    box-shadow: 0 0 0 4px rgba(41,128,185,0.1);
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1rem;
}

.clear-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    display: none;
    transition: var(--transition);
}

.clear-btn.visible {
    display: block;
}

.clear-btn:hover {
    background: var(--border);
    color: var(--danger);
}

.filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 16px;
    border: 2px solid var(--border);
    border-radius: 50px;
    background: white;
    color: var(--text-light);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 6px;
}

.filter-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    background: rgba(41,128,185,0.05);
}

.filter-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== INFO BANNER ===== */
.info-banner {
    padding: 16px 0;
    background: white;
}

.info-content {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: linear-gradient(135deg, #eaf6ff 0%, #f0f9ff 100%);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--info);
}

.info-content i {
    color: var(--info);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-content p {
    font-size: 0.88rem;
    color: var(--text-light);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    padding: 24px 0 60px;
}

.results-info {
    margin-bottom: 20px;
    font-size: 0.88rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== PROTOCOLS GRID ===== */
.protocols-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

/* ===== PROTOCOL CARD ===== */
.protocol-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 24px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.protocol-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--radius) var(--radius) 0 0;
}

.protocol-card[data-category="regulacao-eletiva"]::before { background: var(--primary-light); }
.protocol-card[data-category="urgencia"]::before { background: var(--danger); }
.protocol-card[data-category="fluxo-assistencial"]::before { background: var(--warning); }
.protocol-card[data-category="clinico-nutricional"]::before { background: var(--accent); }
.protocol-card[data-category="manual"]::before { background: #8e44ad; }
.protocol-card[data-category="especializado"]::before { background: #e67e22; }

.protocol-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.card-category {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 10px;
    border-radius: 50px;
    white-space: nowrap;
}

.card-category.regulacao-eletiva { background: #ebf5fb; color: var(--primary-light); }
.card-category.urgencia { background: #fdedec; color: var(--danger); }
.card-category.fluxo-assistencial { background: #fef9e7; color: #d68910; }
.card-category.clinico-nutricional { background: #eafaf1; color: var(--accent); }
.card-category.manual { background: #f4ecf7; color: #8e44ad; }
.card-category.especializado { background: #fdf2e9; color: #e67e22; }

.card-pages {
    font-size: 0.75rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
    flex-grow: 1;
}

.card-description {
    font-size: 0.84rem;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.5;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.card-date {
    font-size: 0.78rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 5px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.download-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(39,174,96,0.3);
}

.download-btn i {
    font-size: 0.85rem;
}

/* ===== NO RESULTS ===== */
.no-results {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-light);
}

.no-results i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.3;
}

.no-results h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.85);
    padding: 36px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
}

.footer-info p {
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.footer-info p:first-child {
    font-size: 0.95rem;
}

.footer-note {
    text-align: right;
}

.footer-note p {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.protocol-card {
    animation: fadeInUp 0.4s ease forwards;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .logo-section {
        flex-direction: column;
    }

    .header-stats {
        gap: 16px;
    }

    .protocols-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-note {
        text-align: center;
    }

    .info-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .filter-btn {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .card-title {
        font-size: 0.92rem;
    }
}