/* =========================================================
   C.A.S.A. DA IÚNA
   Identidade visual
   ========================================================= */

:root {
    --azul-iuna: #353f91;
    --azul-profundo: #242d73;

    --verde-iuna: #2ead54;
    --verde-escuro: #21833f;

    --branco: #ffffff;
    --cinza-claro: #f5f7f6;
    --texto: #252a2c;
    --texto-claro: #697275;

    --container: 1240px;
}


/* RESET */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: var(--texto);
    background: var(--branco);
    line-height: 1.6;
}

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

.container {
    width: min(94%, var(--container));
    margin: 0 auto;
}


/* =========================================================
   CABEÇALHO
   ========================================================= */

.site-header {
    background: var(--branco);
    border-bottom: 4px solid var(--verde-iuna);
}

.header-content {
    min-height: 104px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 13px;
    margin-right: auto;
}

.brand-logo {
    width: 78px;
    height: 78px;
    object-fit: contain;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-text strong {
    color: var(--azul-iuna);
    font-size: 1.45rem;
    letter-spacing: 0.035em;
}

.brand-text span {
    color: var(--verde-escuro);
    font-size: 0.64rem;
    font-weight: 700;
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}


/* NAVEGAÇÃO */

.main-nav {
    display: flex;
    align-items: center;
    gap: 21px;
}

.main-nav a {
    color: var(--azul-profundo);
    font-size: 0.91rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

.main-nav a:hover {
    color: var(--verde-iuna);
}


/* ÁREA DO ALUNO */

.student-area {
    background: var(--azul-iuna);
    color: var(--branco);
    padding: 11px 18px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
    transition: 0.2s ease;
}

.student-area:hover {
    background: var(--verde-iuna);
}


/* =========================================================
   HERO
   ========================================================= */

.hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;

    background:
        radial-gradient(
            circle at 82% 35%,
            rgba(46, 173, 84, 0.28),
            transparent 32%
        ),
        linear-gradient(
            120deg,
            var(--azul-profundo) 0%,
            var(--azul-iuna) 58%,
            #314b8f 100%
        );
}

.hero::after {
    content: "";
    position: absolute;

    width: 520px;
    height: 520px;

    right: -110px;
    bottom: -260px;

    border: 80px solid rgba(46, 173, 84, 0.17);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 70px 0;
}

.hero-text {
    max-width: 730px;
    color: var(--branco);
}

.hero-eyebrow {
    display: inline-block;
    color: #78dc8e;

    font-size: 0.77rem;
    font-weight: 800;

    letter-spacing: 0.18em;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.4rem, 4vw, 3.7rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    margin-bottom: 22px;
}

.hero p {
    max-width: 650px;

    color: rgba(255, 255, 255, 0.84);

    font-size: 1.02rem;
    line-height: 1.55;

    margin-bottom: 30px;
}


/* BOTÕES */

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 52px;
    padding: 13px 23px;

    border-radius: 6px;
    font-weight: 700;

    transition: 0.2s ease;
}

.btn-primary {
    background: var(--verde-iuna);
    color: var(--branco);
}

.btn-primary:hover {
    background: #35c160;
}

.btn-secondary {
    border: 1px solid rgba(255, 255, 255, 0.65);
    color: var(--branco);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.10);
}

/* =========================================================
   CONHEÇA A C.A.S.A. DA IÚNA
   ========================================================= */

.about-section {
    background: var(--branco);
    padding: 90px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 90px;
    align-items: start;
}

.section-eyebrow {
    display: block;
    color: var(--verde-escuro);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    margin-bottom: 18px;
}

.about-intro h2 {
    color: var(--azul-profundo);
    font-size: clamp(1.9rem, 2.7vw, 2.65rem);
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.about-content {
    max-width: 650px;
}

.about-content p {
    color: var(--texto-claro);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 18px;
}

.about-content .about-lead {
    color: var(--texto);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.55;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-top: 10px;

    color: var(--azul-iuna);
    font-weight: 700;
}

.text-link span {
    color: var(--verde-iuna);
    font-size: 1.25rem;
    transition: transform 0.2s ease;
}

.text-link:hover span {
    transform: translateX(5px);
}

/* =========================================================
   NOSSOS PILARES
   ========================================================= */

.pillars-section {
    background: #f4f7f6;
    padding: 80px 0 90px;
}

.pillars-heading {
    max-width: 620px;
    margin-bottom: 45px;
}

.pillars-heading h2 {
    color: var(--azul-profundo);
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.1;
    margin-bottom: 15px;
}

.pillars-heading p {
    color: var(--texto-claro);
    font-size: 1rem;
    line-height: 1.7;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pillar-card {
    position: relative;
    min-height: 230px;
    padding: 30px 27px;

    background: var(--branco);
    border-top: 4px solid var(--verde-iuna);
    border-radius: 4px;

    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.pillar-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 30px rgba(25, 33, 93, 0.10);
}

.pillar-number {
    display: block;
    color: var(--verde-iuna);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    margin-bottom: 24px;
}

.pillar-card h3 {
    color: var(--azul-profundo);
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.pillar-card p {
    color: var(--texto-claro);
    font-size: 0.94rem;
    line-height: 1.7;
}

/* =========================================================
   BIBLIOTECA C.A.S.A. DA IÚNA
   ========================================================= */

.library-section {
    background: var(--branco);
    padding: 95px 0;
}

.library-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 90px;
    align-items: center;
}


/* ÁREA VISUAL */

.library-art {
    position: relative;
    min-height: 480px;
    overflow: hidden;

    display: flex;
    align-items: center;
    justify-content: center;

    background:
        radial-gradient(
            circle at 75% 25%,
            rgba(46, 173, 84, 0.35),
            transparent 30%
        ),
        linear-gradient(
            145deg,
            var(--azul-profundo),
            var(--azul-iuna)
        );

    border-radius: 8px;
}

.library-art::before {
    content: "";
    position: absolute;

    width: 330px;
    height: 330px;

    left: -170px;
    bottom: -150px;

    border: 55px solid rgba(46, 173, 84, 0.20);
    border-radius: 50%;
}

.library-art-content {
    position: relative;
    z-index: 3;

    max-width: 320px;
    text-align: center;
    color: var(--branco);
}

.library-symbol {
    display: block;
    font-size: 4.2rem;
    margin-bottom: 20px;
}

.library-art-content strong {
    display: block;

    font-size: 2rem;
    line-height: 1.15;
    margin-bottom: 14px;
}

.library-art-content small {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
}


/* LIVROS DECORATIVOS */

.book {
    position: absolute;
    display: block;

    width: 48px;
    height: 180px;

    bottom: -45px;

    border-radius: 5px 5px 0 0;

    transform-origin: bottom center;
}

.book-1 {
    right: 90px;
    background: var(--verde-iuna);
    transform: rotate(15deg);
}

.book-2 {
    right: 145px;
    height: 150px;
    background: rgba(255, 255, 255, 0.22);
    transform: rotate(7deg);
}

.book-3 {
    right: 200px;
    height: 125px;
    background: rgba(46, 173, 84, 0.45);
    transform: rotate(-5deg);
}


/* CONTEÚDO */

.library-content h2 {
    max-width: 600px;

    color: var(--azul-profundo);
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.12;

    margin-bottom: 22px;
}

.library-lead {
    max-width: 650px;

    color: var(--texto-claro);
    font-size: 1.05rem;
    line-height: 1.75;

    margin-bottom: 32px;
}


/* RECURSOS */

.library-features {
    border-top: 1px solid #e4e9e7;
}

.library-feature {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 15px;

    padding: 17px 0;

    border-bottom: 1px solid #e4e9e7;
}

.library-feature > span {
    color: var(--verde-iuna);
    font-size: 0.73rem;
    font-weight: 800;
}

.library-feature strong {
    display: block;

    color: var(--azul-profundo);
    font-size: 1rem;

    margin-bottom: 3px;
}

.library-feature p {
    color: var(--texto-claro);
    font-size: 0.9rem;
    line-height: 1.55;
}


/* BOTÃO */

.library-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    margin-top: 28px;
    padding: 13px 20px;

    background: var(--verde-iuna);
    color: var(--branco);

    border-radius: 5px;

    font-weight: 700;

    transition: 0.2s ease;
}

.library-button:hover {
    background: var(--verde-escuro);
}

.library-button span {
    font-size: 1.2rem;
}

/* =========================================================
   APOIE A C.A.S.A. DA IÚNA
   ========================================================= */

.support-section {
    position: relative;
    overflow: hidden;

    background:
        radial-gradient(
            circle at 90% 15%,
            rgba(46, 173, 84, 0.22),
            transparent 28%
        ),
        linear-gradient(
            135deg,
            var(--azul-profundo),
            var(--azul-iuna)
        );

    color: var(--branco);
    padding: 90px 0;
}

.support-section::after {
    content: "";
    position: absolute;

    width: 420px;
    height: 420px;

    right: -210px;
    bottom: -250px;

    border: 65px solid rgba(46, 173, 84, 0.16);
    border-radius: 50%;
}

.support-wrapper {
    position: relative;
    z-index: 2;
}

.support-heading {
    max-width: 760px;
    margin-bottom: 52px;
}

.support-eyebrow {
    display: block;

    color: #74e391;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.16em;

    margin-bottom: 18px;
}

.support-heading h2 {
    font-size: clamp(2rem, 3.2vw, 3rem);
    line-height: 1.12;
    letter-spacing: -0.035em;

    margin-bottom: 22px;
}

.support-heading p {
    max-width: 700px;

    color: rgba(255, 255, 255, 0.78);
    font-size: 1rem;
    line-height: 1.75;
}


/* FORMAS DE APOIO */

.support-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;

    margin-bottom: 40px;
}

.support-item {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 14px;

    padding: 26px;

    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 6px;

    background: rgba(255, 255, 255, 0.06);
}

.support-number {
    color: #74e391;
    font-size: 0.75rem;
    font-weight: 800;
}

.support-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.support-item p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    line-height: 1.65;
}


/* AÇÃO */

.support-action {
    display: flex;
    align-items: center;
    gap: 22px;
}

.support-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    padding: 13px 21px;

    background: var(--verde-iuna);
    color: var(--branco);

    border-radius: 5px;
    font-weight: 700;

    transition: 0.2s ease;
}

.support-button:hover {
    background: #35c160;
}

.support-button span {
    font-size: 1.2rem;
}

.support-action small {
    color: rgba(255, 255, 255, 0.62);
}

/* =========================================================
   CONTATO E REDES SOCIAIS
   ========================================================= */

.connect-section {
    background: var(--branco);
    padding: 85px 0;
}

.connect-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 90px;
    align-items: center;
}

.connect-content {
    max-width: 590px;
}

.connect-content h2 {
    color: var(--azul-profundo);

    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.12;
    letter-spacing: -0.035em;

    margin-bottom: 20px;
}

.connect-content p {
    max-width: 560px;

    color: var(--texto-claro);
    font-size: 1rem;
    line-height: 1.75;
}


/* REDES */

.social-links {
    display: grid;
    gap: 14px;
}

.social-card {
    position: relative;

    display: flex;
    flex-direction: column;

    padding: 24px 65px 24px 26px;

    border: 1px solid #e0e6e3;
    border-radius: 6px;

    transition:
        border-color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.social-card {
    flex-direction: row;
    align-items: center;
    gap: 18px;
}

.social-info {
    display: flex;
    flex-direction: column;
}

.social-icon {
    flex: 0 0 46px;

    width: 46px;
    height: 46px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;
}

.social-icon svg {
    width: 22px;
    height: 22px;
    fill: var(--branco);
}

.facebook-icon {
    background: #1877F2;
}

.instagram-icon {
    background:
        linear-gradient(
            135deg,
            #833AB4,
            #E1306C,
            #F77737
        );
}

.social-card:hover {
    border-color: var(--verde-iuna);
    transform: translateX(5px);

    box-shadow: 0 10px 25px rgba(25, 33, 93, 0.08);
}

.social-name {
    color: var(--verde-escuro);

    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;

    margin-bottom: 5px;
}

.social-card strong {
    color: var(--azul-profundo);
    font-size: 1.15rem;
}

.social-arrow {
    position: absolute;

    right: 26px;
    top: 50%;

    transform: translateY(-50%);

    color: var(--verde-iuna);
    font-size: 1.4rem;
}

/* =========================================================
   RODAPÉ
   ========================================================= */

.site-footer {
    background: #19215d;
    color: rgba(255, 255, 255, 0.75);
    padding: 45px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.site-footer strong {
    display: block;
    color: var(--branco);
    font-size: 1.2rem;
    margin-bottom: 5px;
}


/* =========================================================
   RESPONSIVO
   ========================================================= */

/* TABLETS E TELAS MÉDIAS */
@media (max-width: 1050px) {

    .header-content {
        flex-wrap: wrap;
        padding: 12px 0 16px;
    }

    .main-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-top: 8px;
    }

    .about-grid {
        gap: 55px;
    }

    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .library-grid {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }

    .support-options {
        grid-template-columns: 1fr;
    }

    .connect-wrapper {
        gap: 50px;
    }
}


/* CELULARES */
@media (max-width: 650px) {

    /* CABEÇALHO */

    .header-content {
        gap: 12px;
    }

    .brand-logo {
        width: 58px;
        height: 58px;
    }

    .brand-text strong {
        font-size: 1.05rem;
    }

    .brand-text span {
        max-width: 190px;
        font-size: 0.48rem;
    }

    .student-area {
        padding: 9px 11px;
        font-size: 0.75rem;
    }

    .main-nav {
        gap: 20px;
    }


    /* HERO */

    .hero {
        min-height: auto;
    }

    .hero-content {
        padding: 58px 0 62px;
    }

    .hero h1 {
        font-size: clamp(2.25rem, 11vw, 3rem);
        line-height: 1.05;
    }

    .hero p {
        font-size: 0.96rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions a {
        justify-content: center;
        text-align: center;
    }


    /* QUEM SOMOS */

    .about-section {
        padding: 60px 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about-intro h2 {
        font-size: 2rem;
    }

    .about-content .about-lead {
        font-size: 1.1rem;
    }


    /* PILARES */

    .pillars-section {
        padding: 60px 0;
    }

    .pillars-heading {
        margin-bottom: 32px;
    }

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

    .pillar-card {
        min-height: auto;
    }


    /* BIBLIOTECA */

    .library-section {
        padding: 60px 0;
    }

    .library-grid {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .library-art {
        min-height: 390px;
    }

    .library-art-content strong {
        font-size: 1.7rem;
    }

    .library-content h2 {
        font-size: 2rem;
    }


    /* APOIO */

    .support-section {
        padding: 60px 0;
    }

    .support-heading {
        margin-bottom: 35px;
    }

    .support-heading h2 {
        font-size: 2rem;
    }

    .support-options {
        grid-template-columns: 1fr;
    }

    .support-action {
        flex-direction: column;
        align-items: flex-start;
    }


    /* REDES SOCIAIS */

    .connect-section {
        padding: 60px 0;
    }

    .connect-wrapper {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .connect-content h2 {
        font-size: 2rem;
    }


    /* RODAPÉ */

    .footer-content {
        align-items: flex-start;
        flex-direction: column;
    }
}
/* Autenticação: identidade e componentes do portal. */
.auth-section { background: var(--cinza-claro); padding: 48px 16px; }
.auth-card { width: min(100%, 440px); margin: 0 auto; padding: 28px; background: var(--branco); border-top: 4px solid var(--verde-iuna); border-radius: 12px; }
.auth-card h1 { color: var(--azul-iuna); font-size: 1.7rem; }
.auth-card > a { display: inline-block; margin-top: 20px; color: var(--azul-iuna); }
.auth-form { display: grid; gap: 12px; margin-top: 24px; }
.auth-form label { font-weight: 700; }
.auth-form input { width: 100%; min-width: 0; padding: 12px; border: 1px solid var(--texto-claro); border-radius: 6px; font: inherit; }
.auth-form button { border: 0; cursor: pointer; font: inherit; }
.auth-error { margin-top: 16px; color: var(--azul-profundo); border-left: 4px solid var(--verde-iuna); padding: 12px; background: var(--cinza-claro); }
.auth-logout { display: inline-flex; }
.auth-logout button { background: transparent; border: 0; color: var(--azul-iuna); cursor: pointer; font: inherit; font-weight: 700; }
.auth-form input:focus-visible, .auth-logout button:focus-visible { outline: 3px solid var(--verde-iuna); outline-offset: 3px; }
.system-header-actions { flex-wrap: wrap; }
@media (max-width: 480px) { .auth-section { padding: 24px 12px; } .auth-card { padding: 20px; } }