/**
 * DELMAT Engenharia & Tecnologia
 * Landing Page: Execucao de Infraestrutura de Rede (obra)
 *
 * Esta LP integra-se ao site institucional (index.php) como uma pagina
 * interna: reaproveita partials/topbar.php, partials/header.php,
 * partials/footer.php e as classes globais de styles.css (hero-section,
 * clientes-section, cta-image-section, contato-section, btn-primary).
 *
 * Clone visual 1:1 da LP de Projetos de Cabeamento
 * (projetos-cabeamento.css, namespace .pc-*), trocando o namespace para
 * .ir-* (Infraestrutura de Rede). Cobre apenas as secoes especificas que
 * nao existem na home: "O que executamos", "O que voce recebe", "Quando
 * voce precisa", "Como funciona", "Prazo" e "Por que a DELMAT". Toda a
 * paleta espelha a institucional (azul 00349A, branco, soft cinza claro).
 *
 * Namespace: .ir-* (Infraestrutura de Rede) para nao colidir com .pc-*
 * (projetos de cabeamento), .pe-* (projetos eletricos) nem com as demais
 * LPs construidas em paralelo pelos outros agentes.
 */

:root {
    --ir-primary: #00349A;
    --ir-primary-dark: #002B7F;
    --ir-blue-vivid: #1D4ED8;
    --ir-ink: #0F172A;
    --ir-text: #334155;
    --ir-muted: #475569;
    --ir-soft: #F1F3F8;
    --ir-border: #E2E8F0;
    --ir-radius: 20px;
}

/* ===================================================================
   HERO (override do hero institucional para layout dividido 50/50
   com imagem unica, em vez do carrossel da home)
   =================================================================== */
.ir-hero .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
}

.ir-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ir-primary);
    margin-bottom: 16px;
}

.ir-hero__micro {
    margin-top: 18px;
    font-size: 14px;
    color: var(--ir-muted);
}

.ir-hero__media {
    position: relative;
}

.ir-hero__image {
    width: 100%;
    height: 100%;
    max-height: 460px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 18px 48px rgba(0, 52, 154, 0.18);
}

.ir-blog-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    font-size: 15px;
    font-weight: 600;
    color: var(--ir-primary);
}

.ir-blog-link:hover {
    gap: 12px;
}

/* Faixa fina azul separadora (mesmo papel do divisor da home) */

/* ===================================================================
   SECAO INSTITUCIONAL CURTA (frase de credibilidade centralizada)
   =================================================================== */




/* ===================================================================
   BLOCO DE SECAO GENERICO (titulo + subtitulo centralizado)
   =================================================================== */
.ir-section {
    padding: 80px 0;
}

.ir-section--white {
    background: #FFFFFF;
}

.ir-section--soft {
    background: var(--ir-soft);
}

.ir-section__head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
}

.ir-section__title {
    font-size: 36px;
    font-weight: 700;
    color: var(--ir-ink);
    line-height: 1.2;
}

.ir-section__subtitle {
    margin-top: 14px;
    font-size: 18px;
    color: var(--ir-muted);
    line-height: 1.5;
}

/* ===================================================================
   1. O QUE PROJETAMOS (4 cards estilo segmentos da home)
   =================================================================== */
.ir-cards-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* Variante: a LP de execucao tem 6 frentes de servico (nao 4); em
   3 colunas as duas linhas ficam equilibradas (3+3). */
.ir-cards-4--six {
    grid-template-columns: repeat(3, 1fr);
}

.ir-card {
    background: #FFFFFF;
    border: 1px solid var(--ir-border);
    border-radius: var(--ir-radius);
    padding: 32px 26px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.ir-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
    border-color: transparent;
}

.ir-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(0, 52, 154, 0.08);
    color: var(--ir-primary);
    margin-bottom: 20px;
}

.ir-card__icon i {
    width: 28px;
    height: 28px;
}

.ir-card__title {
    font-size: 19px;
    font-weight: 700;
    color: var(--ir-ink);
    margin-bottom: 10px;
}

.ir-card__text {
    font-size: 15px;
    color: var(--ir-text);
    line-height: 1.6;
}

/* Faixa de integracao abaixo dos 4 cards */
.ir-integra {
    margin-top: 32px;
    background: rgba(0, 52, 154, 0.05);
    border-radius: var(--ir-radius);
    padding: 24px 32px;
    text-align: center;
    font-size: 17px;
    color: var(--ir-text);
    line-height: 1.6;
}

.ir-integra strong {
    color: var(--ir-primary);
}

/* ===================================================================
   2. O QUE VOCE RECEBE (lista de 5 itens com icones azuis, soft bg)
   =================================================================== */
.ir-recebe__list {
    display: grid;
    gap: 16px;
    max-width: 880px;
    margin: 0 auto;
}

.ir-recebe__item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    background: #FFFFFF;
    border: 1px solid var(--ir-border);
    border-radius: 16px;
    padding: 22px 26px;
}

.ir-recebe__icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 52, 154, 0.08);
    color: var(--ir-primary);
}

.ir-recebe__icon i {
    width: 24px;
    height: 24px;
}

.ir-recebe__text {
    font-size: 16px;
    color: var(--ir-text);
    line-height: 1.55;
    padding-top: 2px;
}

.ir-recebe__text strong {
    color: var(--ir-ink);
}

/* ===================================================================
   3. QUANDO VOCE PRECISA (cards com imagem de fundo + overlay, estilo
      cards de obras da home)
   =================================================================== */
.ir-obra-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.ir-obra-card {
    position: relative;
    min-height: 360px;
    border-radius: var(--ir-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px 24px;
    color: #FFFFFF;
    background-size: cover;
    background-position: center;
}

.ir-obra-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 23, 70, 0.15) 0%, rgba(0, 23, 70, 0.55) 55%, rgba(0, 23, 70, 0.88) 100%);
    transition: background 0.3s ease;
}

.ir-obra-card:hover::before {
    background: linear-gradient(180deg, rgba(0, 52, 154, 0.35) 0%, rgba(0, 23, 70, 0.7) 55%, rgba(0, 23, 70, 0.92) 100%);
}

.ir-obra-card__body {
    position: relative;
    z-index: 1;
}

.ir-obra-card__plus {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 24px;
    line-height: 1;
}

.ir-obra-card__title {
    font-size: 21px;
    font-weight: 700;
    margin-bottom: 10px;
}

.ir-obra-card__text {
    font-size: 14px;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.92);
}

/* ===================================================================
   4. COMO FUNCIONA (4 passos numerados, soft bg)
   =================================================================== */
.ir-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: ir-step;
}

.ir-step {
    position: relative;
    background: #FFFFFF;
    border: 1px solid var(--ir-border);
    border-radius: var(--ir-radius);
    padding: 32px 26px 28px;
}

.ir-step__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--ir-primary);
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 18px;
}

.ir-step__icon {
    position: absolute;
    top: 34px;
    right: 26px;
    color: rgba(0, 52, 154, 0.25);
}

.ir-step__icon i {
    width: 26px;
    height: 26px;
}

.ir-step__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ir-ink);
    margin-bottom: 10px;
}

.ir-step__text {
    font-size: 15px;
    color: var(--ir-text);
    line-height: 1.6;
}

/* ===================================================================
   5. PRAZO (linha do tempo horizontal com 4 marcos, white bg)
   =================================================================== */
.ir-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.ir-timeline::before {
    content: "";
    position: absolute;
    top: 19px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--ir-primary), var(--ir-blue-vivid));
    z-index: 0;
}

.ir-marco {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 8px;
}

.ir-marco__dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #FFFFFF;
    border: 3px solid var(--ir-primary);
    color: var(--ir-primary);
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 18px;
}

.ir-marco--final .ir-marco__dot {
    background: var(--ir-primary);
    color: #FFFFFF;
}

.ir-marco__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--ir-ink);
    margin-bottom: 8px;
}

.ir-marco__text {
    font-size: 14px;
    color: var(--ir-text);
    line-height: 1.5;
}

.ir-prazo__nota {
    max-width: 820px;
    margin: 44px auto 0;
    text-align: center;
    font-size: 16px;
    color: var(--ir-muted);
    line-height: 1.65;
}

.ir-prazo__nota strong {
    color: var(--ir-ink);
}

/* ===================================================================
   6. POR QUE A DELMAT (6 tiles com icone, soft bg)
   =================================================================== */
.ir-tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ir-tile {
    background: #FFFFFF;
    border: 1px solid var(--ir-border);
    border-radius: var(--ir-radius);
    padding: 30px 28px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ir-tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
}

/* Card 2 (projeto + certificacao Fluke DSX): destaque sutil, peso
   visual ligeiramente maior por ser o diferencial tecnico desta LP. */
.ir-tile--destaque {
    border: 2px solid var(--ir-primary);
    box-shadow: 0 10px 28px rgba(0, 52, 154, 0.1);
}

.ir-tile--destaque .ir-tile__icon {
    background: var(--ir-primary);
    color: #FFFFFF;
}

.ir-tile__badge {
    display: inline-block;
    margin-top: 14px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ir-primary);
    background: rgba(0, 52, 154, 0.08);
    border-radius: 999px;
    padding: 5px 12px;
}

.ir-tile__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 52, 154, 0.08);
    color: var(--ir-primary);
    margin-bottom: 18px;
}

.ir-tile__icon i {
    width: 24px;
    height: 24px;
}

.ir-tile__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ir-ink);
    margin-bottom: 10px;
}

.ir-tile__text {
    font-size: 15px;
    color: var(--ir-text);
    line-height: 1.6;
}

.ir-tile__text strong {
    color: var(--ir-ink);
}

/* ===================================================================
   RESPONSIVO
   =================================================================== */
@media (max-width: 1024px) {
    .ir-cards-4,
    .ir-obra-cards,
    .ir-steps {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .ir-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px 24px;
    }

    .ir-timeline::before {
        display: none;
    }
}

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

    .ir-hero__image {
        max-height: 320px;
    }

    .ir-section {
        padding: 56px 0;
    }

    .ir-section__title {
        font-size: 28px;
    }


    .ir-cards-4,
    .ir-obra-cards,
    .ir-steps,
    .ir-tiles,
    .ir-timeline {
        grid-template-columns: 1fr;
    }

    .ir-obra-card {
        min-height: 280px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ir-card,
    .ir-tile,
    .ir-obra-card::before,
    .ir-blog-link,
    .ir-hero__image {
        transition: none;
    }
}

/* ============================================================
   Timeline "Prazo realista" — numeração e animação
   ============================================================ */
/* A lista é decorativa: o número vem do __dot. Sem isto o browser
   somava a numeração nativa do <ol> ("1. 1", "2. 2"...). */
.ir-timeline {
    list-style: none;
    padding-left: 0;
}

/* Progresso animado sobre o trilho (adaptação da linha do tempo das
   LPs de laudo): a linha preenche e cada marco acende na passagem;
   o último acende em verde. O ciclo só roda com .is-playing, que
   projetos-timeline-anim.js aplica quando a seção entra na viewport
   (reentrada reinicia; prefers-reduced-motion recebe .is-done). */
.ir-timeline::after {
    content: "";
    position: absolute;
    top: 19px;
    left: 12%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--ir-primary) 0%, var(--ir-blue-vivid) 100%);
    border-radius: 2px;
}

.ir-timeline.is-playing::after {
    animation: ir-tl-fill 8s linear infinite;
}

.ir-timeline.is-playing .ir-marco__dot {
    background: #FFFFFF;
    border-color: var(--ir-primary);
    color: var(--ir-primary);
}

.ir-timeline.is-playing .ir-marco:nth-child(1) .ir-marco__dot { animation: ir-tl-dot-1 8s linear infinite; }
.ir-timeline.is-playing .ir-marco:nth-child(2) .ir-marco__dot { animation: ir-tl-dot-2 8s linear infinite; }
.ir-timeline.is-playing .ir-marco:nth-child(3) .ir-marco__dot { animation: ir-tl-dot-3 8s linear infinite; }
.ir-timeline.is-playing .ir-marco:nth-child(4) .ir-marco__dot { animation: ir-tl-dot-final 8s linear infinite; }

@keyframes ir-tl-fill {
    0%   { width: 0; }
    85%, 100% { width: 76%; }
}

@keyframes ir-tl-dot-1 {
    0%, 1%   { background: #FFFFFF; color: var(--ir-primary); }
    4%, 96%  { background: var(--ir-primary); color: #FFFFFF; }
    100%     { background: #FFFFFF; color: var(--ir-primary); }
}

@keyframes ir-tl-dot-2 {
    0%, 26%  { background: #FFFFFF; color: var(--ir-primary); }
    30%, 96% { background: var(--ir-primary); color: #FFFFFF; }
    100%     { background: #FFFFFF; color: var(--ir-primary); }
}

@keyframes ir-tl-dot-3 {
    0%, 54%  { background: #FFFFFF; color: var(--ir-primary); }
    58%, 96% { background: var(--ir-primary); color: #FFFFFF; }
    100%     { background: #FFFFFF; color: var(--ir-primary); }
}

@keyframes ir-tl-dot-final {
    0%, 81%  { background: #FFFFFF; border-color: var(--ir-primary); color: var(--ir-primary); }
    85%, 96% { background: var(--color-success, #16A34A); border-color: var(--color-success, #16A34A); color: #FFFFFF; }
    100%     { background: #FFFFFF; border-color: var(--ir-primary); color: var(--ir-primary); }
}

/* Estado final estático (prefers-reduced-motion) */
.ir-timeline.is-done::after {
    width: 76%;
}

.ir-timeline.is-done .ir-marco__dot {
    background: var(--ir-primary);
    border-color: var(--ir-primary);
    color: #FFFFFF;
}

.ir-timeline.is-done .ir-marco--final .ir-marco__dot {
    background: var(--color-success, #16A34A);
    border-color: var(--color-success, #16A34A);
}

@media (max-width: 1024px) {
    /* o trilho (::before) já some neste breakpoint; idem o preenchimento */
    .ir-timeline::after {
        display: none;
    }
}