:root {
    --brand-green: #7B8771;
    --brand-green-dark: #65705d;
    --brand-green-light: rgba(123, 135, 113, 0.12);
    --brand-dark: #2d3436;
    --brand-blue: #5b9bd5;
    --brand-orange: #f39c12;
    --body-bg: #f4f6f9;
    --surface: #ffffff;
    --text-muted: #6c757d;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
    --radius-md: 12px;
    --radius-lg: 16px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    background: var(--body-bg);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--brand-dark);
}

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Top Navbar ── */
.top-navbar {
    background: var(--brand-green);
    border-bottom: 3px solid var(--brand-green-dark);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.55rem 1.25rem;
    flex-wrap: wrap;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.navbar-logo {
    height: 40px;
    width: auto;
    border-radius: 8px;
}

.navbar-brand-title {
    display: block;
    font-weight: 800;
    font-size: 1.05rem;
    color: #fff;
    letter-spacing: 0.4px;
    line-height: 1.2;
}

.navbar-brand small {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
    flex-wrap: wrap;
}

.nav-link-main {
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.45rem 0.75rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-link-main:hover,
.nav-dropdown.show > .nav-link-main {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    flex-shrink: 0;
}

.navbar-username {
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
}

.navbar-user .btn-outline-danger {
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff;
}

.navbar-user .btn-outline-danger:hover {
    background: #fff;
    color: #dc3545;
    border-color: #fff;
}

/* ── Layout ── */
.app-main {
    flex: 1;
    padding: 28px;
    max-width: 100%;
}

.app-footer {
    background: var(--surface);
    border-top: 3px solid var(--brand-green);
    padding: 0.85rem 1.25rem;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: auto;
}

.app-footer strong {
    color: var(--brand-green-dark);
}

/* ── Componentes compartidos ── */
.page-header {
    background: var(--surface);
    border-left: 6px solid var(--brand-green);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    padding: 1.25rem 1.5rem;
}

.page-header h1,
.page-header h2 {
    margin: 0;
    font-weight: 700;
    color: var(--brand-dark);
}

.page-hero {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border-left: 6px solid var(--brand-green);
    padding: 22px 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.page-hero h1 {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--brand-dark);
}

.form-section {
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid #e9ecef;
    margin-bottom: 2rem;
    padding: 25px;
    box-shadow: var(--shadow-sm);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--brand-dark);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.section-title i { color: var(--brand-green); font-size: 1.3rem; }

.content-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.btn-brand,
.btn-custom,
.btn-success {
    --bs-btn-bg: var(--brand-green);
    --bs-btn-border-color: var(--brand-green);
    --bs-btn-hover-bg: var(--brand-green-dark);
    --bs-btn-hover-border-color: var(--brand-green-dark);
}

.btn-brand {
    background: var(--brand-green);
    border-color: var(--brand-green);
    color: #fff;
    font-weight: 700;
    border-radius: 10px;
}

.btn-brand:hover {
    background: var(--brand-green-dark);
    border-color: var(--brand-green-dark);
    color: #fff;
}

.btn-custom {
    background: linear-gradient(135deg, var(--brand-green) 0%, var(--brand-green-dark) 100%);
    color: #fff;
    border: none;
    font-weight: 700;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(123, 135, 113, 0.25);
}

.btn-custom:hover {
    transform: translateY(-2px);
    color: #fff;
    box-shadow: 0 4px 12px rgba(123, 135, 113, 0.35);
}

.table thead th {
    background: linear-gradient(135deg, #f5f7f4, #eef2eb);
    border: none;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.35px;
    color: #555;
}

.badge-modulo {
    background: var(--brand-green-light);
    color: var(--brand-dark);
    border: 1px solid var(--brand-green);
    font-weight: 600;
    margin: 2px;
}

/* ── Menú principal ── */
.hero-section {
    background: var(--surface);
    padding: 35px 0 25px;
    border-bottom: 6px solid var(--brand-green);
    box-shadow: var(--shadow-sm);
}

.logo-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 12px;
    box-shadow: 0 6px 20px rgba(123, 135, 113, 0.2);
    border: 3px solid var(--brand-green);
}

.menu-card {
    border: none;
    border-radius: 18px;
    transition: all 0.35s cubic-bezier(0.4, 0.0, 0.2, 1);
    background: var(--surface);
    padding: 30px 20px;
    cursor: pointer;
    text-align: center;
    height: 100%;
    border-top: 5px solid transparent;
    box-shadow: var(--shadow-sm);
}

.menu-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.1);
    border-top-color: var(--brand-green);
}

.icon-circle {
    width: 70px;
    height: 70px;
    background: var(--brand-green-light);
    color: var(--brand-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 16px;
}

.menu-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: var(--surface);
    border-radius: 14px;
    border-left: 6px solid var(--brand-green);
    box-shadow: var(--shadow-sm);
    margin-bottom: 4px;
}

.dash-container {
    background: var(--surface);
    border-radius: 18px;
    padding: 28px;
    box-shadow: var(--shadow-md);
    border-left: 6px solid var(--brand-green);
}

.stat-box-main {
    background: linear-gradient(135deg, var(--brand-green) 0%, var(--brand-green-dark) 100%);
    color: #fff;
}

/* ── Inventario ── */
.card-insumo {
    border: none;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.card-insumo:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stock-bajo { border-left: 6px solid #dc3545 !important; background-color: #fff5f5; }
.stock-normal { border-left: 6px solid var(--brand-green) !important; background-color: #f9fdf8; }

/* ── Producción ── */
.card-medida {
    border-radius: var(--radius-md);
    border: none;
    border-left: 6px solid var(--brand-blue);
    background-color: #fafbfc;
    box-shadow: var(--shadow-sm);
}

.medida-completada {
    border-left-color: #198754 !important;
    background-color: #f4fbf7 !important;
    opacity: 0.65;
}

/* ── Login ── */
.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--body-bg);
}

.login-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border-top: 5px solid var(--brand-green);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
}

@media (max-width: 768px) {
    .navbar-inner { flex-direction: column; align-items: stretch; }
    .navbar-menu { justify-content: flex-start; }
    .navbar-user { margin-left: 0; justify-content: space-between; }
    .app-main { padding: 16px; }
}

@media print {
    .top-navbar,
    .app-footer,
    .no-print { display: none !important; }

    body {
        background: #fff !important;
        color: #000 !important;
    }

    * {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .page-header,
    .form-section,
    .content-card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}