:root {
    --primary-bg: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --accent-superadmin: #fbbf24;
    --accent-gestor: #3b82f6;
    --accent-professor: #e67e22;
    --accent-aluno: #27ae60;
    --accent-financeiro: #8e44ad;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background: radial-gradient(circle at top right, #1e293b, #0f172a);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-main);
    padding: 20px;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1000px;
    text-align: center;
    z-index: 10;
}

.header {
    margin-bottom: 50px;
    animation: fadeInDown 0.8s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header img {
    max-width: 250px;
    height: auto;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.1));
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.portal-kicker {
    margin-top: 25px;
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
    width: 100%;
    margin-bottom: 25px;
}

.portal-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 15px 5px;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.5s ease-out backwards;
}

.portal-card:hover {
    transform: translateY(-10px);
    background: rgba(45, 55, 72, 0.8);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.portal-card i {
    font-size: 1.5rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.portal-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.portal-card span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Cores específicas */
.card-superadmin:hover i {
    color: var(--accent-superadmin);
}

.card-superadmin:hover {
    border-bottom: 4px solid var(--accent-superadmin);
}

.card-gestor:hover i {
    color: var(--accent-gestor);
}

.card-gestor:hover {
    border-bottom: 4px solid var(--accent-gestor);
}

.card-professor:hover i {
    color: var(--accent-professor);
}

.card-professor:hover {
    border-bottom: 4px solid var(--accent-professor);
}

.card-aluno:hover i {
    color: var(--accent-aluno);
}

.card-aluno:hover {
    border-bottom: 4px solid var(--accent-aluno);
}

.card-financeiro:hover i {
    color: var(--accent-financeiro);
}

.card-financeiro:hover {
    border-bottom: 4px solid var(--accent-financeiro);
}

.dev-credits {
    margin-top: 40px;
    margin-inline: auto;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    background: rgba(30, 41, 59, 0.4);
    padding: 20px;
    border-radius: 16px;
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--glass-border);
    animation: fadeIn 1s ease-in;
}

.dev-credits strong {
    display: block;
    color: #fff;
    margin-bottom: 5px;
}

.credits-meta {
    margin-top: 10px;
    font-size: 11px;
    opacity: 0.7;
}

.ambient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, rgba(59, 130, 246, 0) 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Delays para animação dos cards */
.portal-card:nth-child(1) {
    animation-delay: 0.1s;
}

.portal-card:nth-child(2) {
    animation-delay: 0.2s;
}

.portal-card:nth-child(3) {
    animation-delay: 0.3s;
}

.portal-card:nth-child(4) {
    animation-delay: 0.4s;
}

.portal-card:nth-child(5) {
    animation-delay: 0.5s;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    .portal-grid {
        grid-template-columns: 1fr;
    }
}