:root {
    --primary: #0F385A;
    --primary-hover: #174c78;
    --accent: #c5251a;
    --bg-light: #F4F6F9;
    --card-bg: #FFFFFF;
    --text-dark: #2C3E50;
    --text-muted: #6C757D;
    --border-radius: 12px;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    position: relative;
    background: linear-gradient(135deg, var(--primary) 0%, #0a2740 100%);
    color: #ffffff;
    padding: 2rem 1.5rem;
    text-align: left;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    overflow: hidden;
    flex-wrap: wrap;
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, #c5251a 50%, var(--accent) 100%);
}

header::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(230, 161, 25, 0.18) 0%, rgba(230, 161, 25, 0) 70%);
    pointer-events: none;
}

.logo-container {
    position: relative;
    z-index: 1;
    background-color: #ffffff;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    width: fit-content;
    display: flex;
    justify-content: center;
    flex-shrink: 0;
}

.header-logo {
    max-height: 100px;
    max-width: 100%;
    display: block;
}

.header-text {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.5;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    opacity: 0.85;
    margin: 0;
}

.container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    flex: 1;
    width: 100%;
}

.alert-banner {
    background: linear-gradient(135deg, #FFF9E6 0%, #FEF3D6 100%);
    border-left: 5px solid var(--accent);
    border-radius: 10px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-icon {
    font-size: 1.8rem;
    color: var(--accent);
}

.alert-text h3 {
    font-size: 1.05rem;
    color: #8A6D3B;
    margin-bottom: 0.2rem;
}

.alert-text p {
    font-size: 0.9rem;
    color: #6A5328;
}

.btn-reset {
    background-color: var(--accent);
    color: #ffffff;
    padding: 0.7rem 1.3rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-reset:hover {
    background-color: #ff1100;
    transform: translateY(-2px);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.8rem;
    box-shadow: var(--shadow);
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(15, 56, 90, 0.2);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary);
    opacity: 0;
    transition: opacity 0.2s;
}

.card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background-color: rgba(15, 56, 90, 0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    overflow: hidden;
}

.card-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.card-action {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    gap: 0.4rem;
    margin-top: auto;
}

.card:hover .card-action i {
    transform: translateX(4px);
}

.card-action i {
    transition: transform 0.2s;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid #E9ECEF;
    margin-top: auto;
}

@media (max-width: 600px) {
    header {
        flex-direction: column;
        text-align: center;
    }

    .alert-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn-reset {
        width: 100%;
        justify-content: center;
    }
}

/* Card desabilitado (ex: ClassApp) */
.card.card-disabled {
    background-color: #FDF7F6;
    border: 1px solid rgba(197, 37, 26, 0.3);
}

.card.card-disabled:hover {
    transform: none;
    box-shadow: var(--shadow);
    border-color: rgba(197, 37, 26, 0.45);
}

.card.card-disabled::before {
    background-color: var(--accent);
}

.card.card-disabled .card-icon {
    filter: grayscale(1);
    opacity: 0.55;
}

.card.card-disabled .card-title {
    color: var(--text-muted);
}

.card.card-disabled .card-desc {
    color: var(--accent);
    font-weight: 600;
}

.card.card-disabled .card-action {
    color: var(--text-muted);
}

.card.card-disabled:hover .card-action i {
    transform: none;
}

.disabled-ribbon {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    background: var(--accent);
    color: #ffffff;
    padding: 0.25rem 0.5rem;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    z-index: 1;
}