:root {
    --arcosa-navy: #16324f;
    --arcosa-navy-dark: #0f2338;
    --arcosa-blue: #1f4e79;
    --arcosa-sky: #4f8cc9;
    --arcosa-gold: #f1b51c;
    --arcosa-gold-dark: #d99d0b;

    --arcosa-bg: #f4f7fb;
    --arcosa-card: #ffffff;
    --arcosa-border: #dbe4ee;

    --arcosa-text: #1f2937;
    --arcosa-muted: #6b7280;

    --arcosa-success: #198754;
    --arcosa-danger: #dc3545;
    --arcosa-warning: #ffca2c;

    --arcosa-shadow: 0 10px 28px rgba(15, 35, 56, 0.08);
    --arcosa-shadow-soft: 0 6px 18px rgba(15, 35, 56, 0.05);

    --arcosa-radius: 18px;
    --arcosa-radius-sm: 12px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body.app-body {
    background:
        radial-gradient(circle at top right, rgba(79, 140, 201, 0.08), transparent 20%),
        linear-gradient(180deg, #f8fbff 0%, var(--arcosa-bg) 100%);
    color: var(--arcosa-text);
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    min-height: 100vh;
}

/* =========================
   Navbar
========================= */
.app-navbar {
    background: linear-gradient(135deg, var(--arcosa-navy-dark) 0%, var(--arcosa-navy) 45%, var(--arcosa-blue) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    background: #fff;
    border-radius: 10px;
    padding: 4px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.navbar-brand span {
    letter-spacing: 0.2px;
}

/* =========================
   Hero
========================= */
.arcosa-hero {
    background: linear-gradient(135deg, rgba(22, 50, 79, 0.98) 0%, rgba(31, 78, 121, 0.96) 60%, rgba(79, 140, 201, 0.92) 100%);
    color: #fff;
    border-radius: 24px;
    padding: 24px 26px;
    box-shadow: var(--arcosa-shadow);
    position: relative;
    overflow: hidden;
}

.arcosa-hero::after {
    content: "";
    position: absolute;
    inset: auto -30px -30px auto;
    width: 170px;
    height: 170px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    filter: blur(2px);
}

.arcosa-hero-logo {
    width: 68px;
    height: 68px;
    object-fit: contain;
    background: #fff;
    border-radius: 16px;
    padding: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* =========================
   Cards
========================= */
.app-card,
.filter-card {
    border: 1px solid var(--arcosa-border);
    border-radius: var(--arcosa-radius);
    background: var(--arcosa-card);
    box-shadow: var(--arcosa-shadow);
}

.app-card .card-body,
.filter-card .card-body {
    padding: 1.25rem;
}

.app-section-title {
    color: var(--arcosa-navy);
    font-weight: 800;
    letter-spacing: 0.2px;
}

/* =========================
   Forms
========================= */
.form-label {
    color: var(--arcosa-navy-dark);
    font-size: 0.94rem;
}

.form-control,
.form-select {
    border-radius: 12px;
    border: 1px solid #cfd9e5;
    min-height: 44px;
    padding: 0.65rem 0.85rem;
    color: var(--arcosa-text);
    background-color: #fff;
    box-shadow: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.06s ease;
}

textarea.form-control {
    min-height: unset;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--arcosa-sky);
    box-shadow: 0 0 0 0.2rem rgba(79, 140, 201, 0.18);
}

.form-text {
    color: var(--arcosa-muted);
    font-size: 0.82rem;
}

.arcosa-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--arcosa-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.4rem;
}

.arcosa-readonly {
    border: 1px solid var(--arcosa-border);
    background: #f8fafc;
    border-radius: 12px;
    min-height: 46px;
    padding: 0.8rem 0.95rem;
    font-weight: 600;
    color: var(--arcosa-text);
}

/* =========================
   Buttons
========================= */
.btn {
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 0.1px;
    min-height: 42px;
    padding: 0.62rem 0.95rem;
    transition: transform 0.08s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--arcosa-blue);
    border-color: var(--arcosa-blue);
}

.btn-primary:hover,
.btn-primary:focus {
    background: #174265;
    border-color: #174265;
}

.btn-secondary {
    background: #5e6b7a;
    border-color: #5e6b7a;
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: #4b5866;
    border-color: #4b5866;
}

.btn-warning {
    background: var(--arcosa-gold);
    border-color: var(--arcosa-gold);
    color: #1e293b;
}

.btn-warning:hover,
.btn-warning:focus {
    background: var(--arcosa-gold-dark);
    border-color: var(--arcosa-gold-dark);
    color: #17202a;
}

.btn-success {
    background: var(--arcosa-success);
    border-color: var(--arcosa-success);
}

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

.btn-info {
    background: var(--arcosa-sky);
    border-color: var(--arcosa-sky);
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-danger,
.btn-outline-dark,
.btn-outline-success,
.btn-outline-warning {
    font-weight: 700;
}

/* =========================
   Tables
========================= */
.table-responsive {
    border-radius: 16px;
}

.table {
    margin-bottom: 0;
    vertical-align: middle;
}

.table thead th {
    background: linear-gradient(180deg, #f7faff 0%, #edf4fb 100%);
    color: var(--arcosa-navy);
    font-size: 0.84rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom-width: 1px;
    border-color: var(--arcosa-border);
    white-space: nowrap;
}

.table td,
.table th {
    border-color: var(--arcosa-border);
    padding: 0.82rem 0.8rem;
}

.table-hover tbody tr:hover {
    background: rgba(79, 140, 201, 0.05);
}

.table-light th,
.table-light td {
    background: #f7fafc !important;
}

/* =========================
   Badges
========================= */
.badge {
    border-radius: 999px;
    padding: 0.5em 0.75em;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.03em;
}

.badge-arcosa-activa {
    background: #1f6fb2;
    color: #fff;
}

.badge-arcosa-proceso {
    background: #f2b705;
    color: #1f2937;
}

.badge-arcosa-completada {
    background: #198754;
    color: #fff;
}

/* =========================
   Alerts
========================= */
.alert {
    border-radius: 14px;
    padding: 0.95rem 1rem;
}

/* =========================
   Item cards
========================= */
.item-card {
    background: linear-gradient(180deg, #fbfdff 0%, #f4f8fc 100%);
    border: 1px solid var(--arcosa-border) !important;
    border-radius: 16px !important;
    box-shadow: var(--arcosa-shadow-soft);
}

/* =========================
   Print action row
========================= */
.print-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* =========================
   Sheet / requisición layout
========================= */
.sheet-page {
    display: flex;
    justify-content: center;
}

.arcosa-sheet {
    width: 100%;
    max-width: 1100px;
    background: #fff;
    border: 1px solid #bfc9d4;
    border-radius: 16px;
    box-shadow: var(--arcosa-shadow);
    overflow: hidden;
}

.arcosa-top {
    display: grid;
    grid-template-columns: 230px 1fr 180px;
    border-bottom: 1px solid #666;
}

.arcosa-logo-block {
    border-right: 1px solid #666;
    padding: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: #f9fbfd;
}

.arcosa-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 92px;
}

.arcosa-logo-wrap img {
    max-width: 150px;
    max-height: 80px;
    object-fit: contain;
}

.arcosa-slogan {
    margin-top: 6px;
    font-size: 12px;
    text-align: center;
    color: #4b5563;
    font-style: italic;
}

.arcosa-center-block {
    padding: 14px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.arcosa-company-title {
    font-weight: 800;
    font-size: 18px;
    color: #111827;
    margin-bottom: 4px;
}

.arcosa-company-line {
    font-size: 12px;
    color: #374151;
    line-height: 1.45;
}

.arcosa-right-block {
    border-left: 1px solid #666;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    background: #f9fbfd;
}

.arcosa-rq-title {
    text-align: center;
    font-weight: 800;
    font-size: 24px;
    line-height: 1.05;
    padding: 20px 10px 8px;
    color: #111827;
}

.arcosa-rq-date {
    border-top: 1px solid #666;
    text-align: center;
    padding: 10px;
    font-weight: 700;
    font-size: 14px;
}

.arcosa-meta-table {
    width: 100%;
    border-collapse: collapse;
}

.arcosa-meta-table td {
    border: 1px solid #666;
    padding: 8px 10px;
    font-size: 13px;
}

.arcosa-meta-label {
    width: 130px;
    font-weight: 800;
    background: #f5f7fa;
}

.arcosa-meta-value {
    font-weight: 600;
}

.arcosa-meta-date {
    width: 180px;
    padding: 0 !important;
}

.arcosa-meta-date-inner {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.arcosa-meta-date-head {
    border-bottom: 1px solid #666;
    text-align: center;
    font-weight: 800;
    background: #f5f7fa;
    padding: 8px;
}

.arcosa-meta-date-value {
    text-align: center;
    padding: 10px;
    font-weight: 700;
}

.arcosa-detail-head,
.arcosa-body-table {
    width: 100%;
    border-collapse: collapse;
}

.arcosa-detail-head td,
.arcosa-body-table td {
    border: 1px solid #666;
    padding: 8px;
    font-size: 13px;
    vertical-align: top;
}

.arcosa-detail-head td {
    background: #f4f6f9;
    font-weight: 800;
    text-align: center;
}

.col-part,
.arcosa-body-part {
    width: 70px;
    text-align: center;
}

.col-cant,
.arcosa-body-cant {
    width: 100px;
    text-align: center;
}

.col-unid,
.arcosa-body-unid {
    width: 90px;
    text-align: center;
}

.col-desc,
.arcosa-body-desc {
    width: auto;
}

.arcosa-body-table tr {
    min-height: 46px;
}

.arcosa-lower {
    display: grid;
    grid-template-columns: 1fr 260px;
    border-top: 1px solid #666;
}

.arcosa-obs-area {
    border-right: 1px solid #666;
    min-height: 150px;
}

.arcosa-obs-title {
    font-weight: 800;
    padding: 8px 10px;
    border-bottom: 1px solid #666;
    background: #f5f7fa;
}

.arcosa-obs-content {
    padding: 10px;
    min-height: 110px;
    white-space: pre-wrap;
    font-size: 13px;
}

.arcosa-right-lower {
    display: flex;
    flex-direction: column;
}

.arcosa-side-box {
    flex: 1;
    border-bottom: 1px solid #666;
}

.arcosa-side-box:last-child {
    border-bottom: 0;
}

.arcosa-side-title {
    font-weight: 800;
    padding: 8px 10px;
    border-bottom: 1px solid #666;
    background: #f5f7fa;
}

.arcosa-side-content {
    padding: 10px;
    min-height: 62px;
    white-space: pre-wrap;
    font-size: 13px;
}

.arcosa-signatures {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid #666;
}

.arcosa-sign-box {
    min-height: 120px;
    border-right: 1px solid #666;
}

.arcosa-sign-box:last-child {
    border-right: 0;
}

.arcosa-sign-title {
    font-weight: 800;
    text-align: center;
    padding: 8px;
    border-bottom: 1px solid #666;
    background: #f5f7fa;
}

.arcosa-sign-content {
    min-height: 80px;
    padding: 12px;
    display: flex;
    align-items: end;
    justify-content: center;
    text-align: center;
    white-space: pre-wrap;
    font-size: 13px;
}

/* =========================
   Flash / Toast messages
========================= */
.arcosa-toast {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 2000;
    min-width: 320px;
    max-width: 460px;
    border-radius: 16px;
    padding: 14px 16px;
    box-shadow: 0 14px 34px rgba(15, 35, 56, 0.18);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    color: #fff;
    animation: arcosaToastIn 0.25s ease;
}

.arcosa-toast-success {
    background: linear-gradient(135deg, #198754 0%, #157347 100%);
}

.arcosa-toast-error {
    background: linear-gradient(135deg, #dc3545 0%, #b02a37 100%);
}

.arcosa-toast-warning {
    background: linear-gradient(135deg, #f1b51c 0%, #d99d0b 100%);
    color: #1f2937;
}

.arcosa-toast-info {
    background: linear-gradient(135deg, #1f4e79 0%, #16324f 100%);
}

.arcosa-toast-content {
    flex: 1;
}

.arcosa-toast-title {
    font-weight: 800;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.arcosa-toast-message {
    font-size: 0.9rem;
    line-height: 1.45;
}

.arcosa-toast-close {
    border: 0;
    background: transparent;
    color: inherit;
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    opacity: 0.9;
}

.arcosa-toast-close:hover {
    opacity: 1;
}

.arcosa-toast-hide {
    opacity: 0;
    transform: translateY(-8px);
    transition: all 0.25s ease;
}

@keyframes arcosaToastIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================
   Loader / Pantalla inicial
========================= */
.arcosa-loader-body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(79, 140, 201, 0.14), transparent 20%),
        linear-gradient(135deg, #0f2338 0%, #16324f 40%, #1f4e79 75%, #4f8cc9 100%);
    overflow: hidden;
}

.arcosa-loader-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.arcosa-loader-card {
    width: 100%;
    max-width: 460px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 28px;
    padding: 34px 28px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
    animation: arcosaLoaderFade 0.7s ease;
}

.arcosa-loader-logo-wrap {
    width: 110px;
    height: 110px;
    margin: 0 auto 18px;
    background: #ffffff;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.15);
}

.arcosa-loader-logo {
    width: 84px;
    height: 84px;
    object-fit: contain;
}

.arcosa-loader-title {
    color: #ffffff;
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    margin: 0 0 6px 0;
}

.arcosa-loader-subtitle {
    color: rgba(255, 255, 255, 0.84);
    font-size: 1rem;
    margin: 0 0 22px 0;
}

.arcosa-loader-line {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 14px;
}

.arcosa-loader-line-bar {
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #f1b51c 0%, #ffd45b 100%);
    animation: arcosaLoaderBar 2s ease forwards;
}

.arcosa-loader-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    margin: 0;
}

@keyframes arcosaLoaderBar {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes arcosaLoaderFade {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* =========================
   Responsive
========================= */
@media (max-width: 992px) {
    .arcosa-top {
        grid-template-columns: 1fr;
    }

    .arcosa-logo-block,
    .arcosa-right-block {
        border: 0;
    }

    .arcosa-right-block {
        border-top: 1px solid #666;
    }

    .arcosa-lower {
        grid-template-columns: 1fr;
    }

    .arcosa-obs-area {
        border-right: 0;
        border-bottom: 1px solid #666;
    }

    .arcosa-signatures {
        grid-template-columns: 1fr;
    }

    .arcosa-sign-box {
        border-right: 0;
        border-bottom: 1px solid #666;
    }

    .arcosa-sign-box:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 768px) {
    .arcosa-hero {
        padding: 20px 18px;
        border-radius: 20px;
    }

    .arcosa-hero-logo {
        width: 56px;
        height: 56px;
    }

    .app-card .card-body,
    .filter-card .card-body {
        padding: 1rem;
    }

    .table td,
    .table th {
        font-size: 0.9rem;
    }

    .btn {
        min-height: 40px;
        padding: 0.58rem 0.85rem;
    }

    .arcosa-toast {
        top: 78px;
        right: 12px;
        left: 12px;
        min-width: unset;
        max-width: unset;
    }
}

/* =========================
   Print
========================= */
@media print {
    body {
        background: #fff !important;
    }

    .navbar,
    .no-print,
    .print-actions,
    .btn,
    .filter-card,
    .arcosa-hero,
    .arcosa-toast {
        display: none !important;
    }

    .container {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .card,
    .app-card,
    .arcosa-sheet {
        box-shadow: none !important;
        border-radius: 0 !important;
    }

    .sheet-page {
        display: block;
    }

    .arcosa-sheet {
        border: 0 !important;
        max-width: 100% !important;
    }
}


/* =========================
   Mejoras nuevas: navegación activa, concentrado por proyecto y stock visual
========================= */
.active-nav {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.65) inset;
    transform: translateY(-1px);
}

.app-navbar .btn {
    white-space: nowrap;
}

.project-summary-card,
.project-filter-box {
    border: 1px solid var(--arcosa-border);
    border-radius: var(--arcosa-radius);
    background: var(--arcosa-card);
    box-shadow: var(--arcosa-shadow);
}

.project-summary-title {
    color: var(--arcosa-navy);
    font-weight: 800;
}

.project-filter-box {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.stock-ok {
    color: #198754;
    font-weight: 800;
}

.stock-low {
    color: #d99d0b;
    font-weight: 800;
}

.stock-critical {
    color: #dc3545;
    font-weight: 800;
}

@media print {
    .active-nav {
        box-shadow: none !important;
        transform: none !important;
    }

    .project-filter-box {
        display: none !important;
    }
}

/* =========================
   Impresión compacta en una sola hoja
   Agregado para imprimir requisición en 1 página
========================= */
@media print {
    @page {
        size: letter portrait;
        margin: 6mm;
    }

    html,
    body {
        width: 100% !important;
        min-height: auto !important;
        background: #fff !important;
        overflow: visible !important;
    }

    body {
        zoom: 0.72;
    }

    .navbar,
    .no-print,
    .print-actions,
    .btn,
    .filter-card,
    .arcosa-hero,
    .arcosa-toast,
    .project-filter-box {
        display: none !important;
    }

    .container {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .sheet-page {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .arcosa-sheet {
        border: 0 !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        transform: scale(0.92);
        transform-origin: top center;
        overflow: visible !important;
    }

    .arcosa-top {
        grid-template-columns: 170px 1fr 130px !important;
    }

    .arcosa-logo-block {
        padding: 6px !important;
    }

    .arcosa-logo-wrap {
        min-height: 55px !important;
    }

    .arcosa-logo-wrap img {
        max-width: 110px !important;
        max-height: 50px !important;
    }

    .arcosa-center-block {
        padding: 6px !important;
    }

    .arcosa-company-title {
        font-size: 13px !important;
        margin-bottom: 2px !important;
    }

    .arcosa-company-line,
    .arcosa-slogan {
        font-size: 9.5px !important;
        line-height: 1.15 !important;
    }

    .arcosa-rq-title {
        font-size: 17px !important;
        padding: 8px 6px 4px !important;
    }

    .arcosa-rq-date,
    .arcosa-meta-date-value {
        font-size: 11px !important;
        padding: 5px !important;
    }

    .arcosa-meta-date-head {
        font-size: 10px !important;
        padding: 4px !important;
    }

    .arcosa-meta-table td,
    .arcosa-detail-head td,
    .arcosa-body-table td {
        padding: 4px 5px !important;
        font-size: 10px !important;
        line-height: 1.15 !important;
    }

    .arcosa-meta-label {
        width: 100px !important;
    }

    .arcosa-meta-date {
        width: 135px !important;
    }

    .col-part,
    .arcosa-body-part {
        width: 45px !important;
    }

    .col-cant,
    .arcosa-body-cant {
        width: 65px !important;
    }

    .col-unid,
    .arcosa-body-unid {
        width: 55px !important;
    }

    .arcosa-body-table tr {
        min-height: 22px !important;
    }

    .arcosa-body-desc div {
        margin-top: 1px !important;
        line-height: 1.15 !important;
    }

    .arcosa-lower {
        grid-template-columns: 1fr 190px !important;
    }

    .arcosa-obs-area {
        min-height: 70px !important;
    }

    .arcosa-obs-title,
    .arcosa-side-title,
    .arcosa-sign-title {
        font-size: 10px !important;
        padding: 4px 6px !important;
    }

    .arcosa-obs-content {
        min-height: 45px !important;
        padding: 5px !important;
        font-size: 10px !important;
        line-height: 1.15 !important;
    }

    .arcosa-side-content {
        min-height: 32px !important;
        padding: 5px !important;
        font-size: 10px !important;
        line-height: 1.15 !important;
    }

    .arcosa-sign-box {
        min-height: 58px !important;
    }

    .arcosa-sign-content {
        min-height: 35px !important;
        padding: 5px !important;
        font-size: 10px !important;
        line-height: 1.15 !important;
    }

    .card,
    .app-card {
        box-shadow: none !important;
        border-radius: 0 !important;
    }

    .active-nav {
        box-shadow: none !important;
        transform: none !important;
    }
}