/* ==========================================================================
   tpl_opmi – Open Product Management Institut
   Joomla 6 Template CSS
   Designed by Jean | Implemented by Leon
   (C) 2026 proProduktmanagement GmbH
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
    --opmi-primary: #1B3A5C;
    --opmi-primary-rgb: 27, 58, 92;
    --opmi-accent: #F39C12;
    --opmi-accent-rgb: 243, 156, 18;
    --opmi-green: #3DAA35;
    --opmi-bg: #F0F0F0;
    --opmi-white: #FFFFFF;
    --opmi-dark: #1a1a2e;
    --opmi-text: #333333;
    --opmi-text-light: #666666;
    --opmi-border: #e0e0e0;
    --opmi-radius: 6px;
    --opmi-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --opmi-transition: 0.3s ease;
    --opmi-font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --opmi-font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --opmi-container: 1280px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--opmi-font-body);
    color: var(--opmi-text);
    background-color: var(--opmi-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.nav-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--opmi-primary);
    text-decoration: none;
    transition: color var(--opmi-transition);
}

a:hover,
a:focus-visible {
    color: var(--opmi-accent);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--opmi-font-primary);
    font-weight: 700;
    color: var(--opmi-primary);
    line-height: 1.2;
    margin-bottom: 0.75em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; }

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

/* ---------- Container ---------- */
.container {
    width: 100%;
    max-width: var(--opmi-container);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.container-fluid {
    width: 100%;
    padding-inline: 1.5rem;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.opmi-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--opmi-white);
    border-bottom: 1px solid var(--opmi-border);
    transition: box-shadow var(--opmi-transition);
}

.opmi-header.is-scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.opmi-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80px;
    gap: 2rem;
}

.opmi-header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.opmi-header__logo-img {
    height: 56px;
    width: auto;
    object-fit: contain;
}

/* Navigation */
.opmi-header__nav {
    display: flex;
    align-items: center;
}

.opmi-header__nav ul {
    display: flex;
    list-style: none;
    gap: 0;
    margin: 0;
    padding: 0;
}

.opmi-header__nav li {
    position: relative;
}

.opmi-header__nav a,
.opmi-header__nav .nav-link {
    display: block;
    padding: 0.75rem 1.25rem;
    font-family: var(--opmi-font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--opmi-primary);
    text-transform: none;
    letter-spacing: 0.01em;
    transition: color var(--opmi-transition);
    white-space: nowrap;
}

.opmi-header__nav a:hover,
.opmi-header__nav a:focus-visible,
.opmi-header__nav .active > a,
.opmi-header__nav .current > a {
    color: var(--opmi-accent);
}

/* Dropdown Submenu */
.opmi-header__nav ul ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--opmi-white);
    border: 1px solid var(--opmi-border);
    border-radius: var(--opmi-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    flex-direction: column;
    padding: 0.5rem 0;
    z-index: 100;
}

.opmi-header__nav li:hover > ul,
.opmi-header__nav li:focus-within > ul {
    display: flex;
}

.opmi-header__nav ul ul a {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.opmi-header__nav ul ul a:hover {
    background: var(--opmi-bg);
}

/* Mobile Toggle */
.opmi-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.opmi-header__toggle-bar {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--opmi-primary);
    border-radius: 2px;
    transition: all var(--opmi-transition);
    transform-origin: center;
}

.opmi-header__toggle[aria-expanded="true"] .opmi-header__toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.opmi-header__toggle[aria-expanded="true"] .opmi-header__toggle-bar:nth-child(2) {
    opacity: 0;
}

.opmi-header__toggle[aria-expanded="true"] .opmi-header__toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav Overlay */
.opmi-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
}

body.nav-open .opmi-nav-overlay {
    display: block;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.opmi-hero {
    background: linear-gradient(135deg, var(--opmi-bg) 0%, #e8e8e8 50%, var(--opmi-bg) 100%);
    padding: 4rem 0 5rem;
    overflow: hidden;
}

.opmi-hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
}

.opmi-hero__title {
    font-family: var(--opmi-font-primary);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
    color: var(--opmi-primary);
    line-height: 1.15;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.opmi-hero__tagline {
    font-family: var(--opmi-font-primary);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 400;
    color: var(--opmi-text-light);
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
}

.opmi-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.opmi-hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.opmi-hero__shield {
    max-width: 480px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    animation: shieldFloat 6s ease-in-out infinite;
}

@keyframes shieldFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.opmi-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-family: var(--opmi-font-primary);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--opmi-radius);
    cursor: pointer;
    transition: all var(--opmi-transition);
    text-decoration: none;
    border: 2px solid transparent;
    line-height: 1.2;
}

.opmi-btn:focus-visible {
    outline: 3px solid var(--opmi-accent);
    outline-offset: 2px;
}

.opmi-btn--primary {
    background: var(--opmi-accent);
    color: var(--opmi-white);
    border-color: var(--opmi-accent);
}

.opmi-btn--primary:hover,
.opmi-btn--primary:focus-visible {
    background: #e08e0b;
    border-color: #e08e0b;
    color: var(--opmi-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--opmi-accent-rgb), 0.35);
}

.opmi-btn--outline {
    background: transparent;
    color: var(--opmi-primary);
    border-color: var(--opmi-primary);
}

.opmi-btn--outline:hover,
.opmi-btn--outline:focus-visible {
    background: var(--opmi-primary);
    color: var(--opmi-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--opmi-primary-rgb), 0.25);
}

.opmi-btn--green {
    background: var(--opmi-green);
    color: var(--opmi-white);
    border-color: var(--opmi-green);
}

.opmi-btn--green:hover,
.opmi-btn--green:focus-visible {
    background: #2e9428;
    border-color: #2e9428;
    color: var(--opmi-white);
    transform: translateY(-2px);
}

.opmi-btn--sm {
    padding: 0.55rem 1.25rem;
    font-size: 0.8rem;
}

.opmi-btn--lg {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* ==========================================================================
   BREADCRUMBS
   ========================================================================== */
.opmi-breadcrumbs {
    padding: 0.75rem 0;
    background: var(--opmi-bg);
    font-size: 0.85rem;
}

.opmi-breadcrumbs ol,
.opmi-breadcrumbs ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.opmi-breadcrumbs li + li::before {
    content: '/';
    margin-right: 0.5rem;
    color: var(--opmi-text-light);
}

.opmi-breadcrumbs a {
    color: var(--opmi-text-light);
}

.opmi-breadcrumbs a:hover {
    color: var(--opmi-primary);
}

.opmi-breadcrumbs .active {
    color: var(--opmi-primary);
    font-weight: 600;
}

/* ==========================================================================
   MAIN CONTENT AREA
   ========================================================================== */
.opmi-main {
    padding: 3rem 0;
    min-height: 50vh;
}

.opmi-main__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.opmi-main__grid.has-sidebar-left {
    grid-template-columns: 280px 1fr;
}

.opmi-main__grid.has-sidebar-right {
    grid-template-columns: 1fr 300px;
}

.opmi-main__grid.has-sidebar-left.has-sidebar-right {
    grid-template-columns: 250px 1fr 250px;
}

.opmi-content {
    min-width: 0;
}

.opmi-sidebar {
    min-width: 0;
}

/* Module Card Style */
.card {
    background: var(--opmi-white);
    border-radius: var(--opmi-radius);
    box-shadow: var(--opmi-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--opmi-border);
}

.card__header,
.card > h3:first-child {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--opmi-accent);
}

.card__header h3 {
    font-size: 1.1rem;
    margin: 0;
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */
.opmi-section {
    padding: 3rem 0;
}

.opmi-section--main-top {
    background: var(--opmi-white);
}

.opmi-section--main-bottom {
    background: var(--opmi-bg);
}

/* ==========================================================================
   CONTENT TYPOGRAPHY
   ========================================================================== */
.opmi-content article {
    margin-bottom: 2rem;
}

.opmi-content article h2 {
    margin-top: 2rem;
}

.opmi-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.opmi-content table th,
.opmi-content table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--opmi-border);
    text-align: left;
}

.opmi-content table th {
    background: var(--opmi-primary);
    color: var(--opmi-white);
    font-family: var(--opmi-font-primary);
    font-weight: 600;
}

.opmi-content table tr:nth-child(even) {
    background: var(--opmi-bg);
}

.opmi-content blockquote {
    border-left: 4px solid var(--opmi-accent);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: var(--opmi-bg);
    font-style: italic;
    color: var(--opmi-text-light);
}

.opmi-content code {
    background: var(--opmi-bg);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
}

.opmi-content pre {
    background: var(--opmi-dark);
    color: #f0f0f0;
    padding: 1.25rem;
    border-radius: var(--opmi-radius);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.opmi-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.opmi-content img {
    border-radius: var(--opmi-radius);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.opmi-footer {
    background: var(--opmi-primary);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 0;
}

.opmi-footer h3,
.opmi-footer h4,
.opmi-footer h5 {
    color: var(--opmi-white);
    margin-bottom: 1rem;
}

.opmi-footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--opmi-transition);
}

.opmi-footer a:hover,
.opmi-footer a:focus-visible {
    color: var(--opmi-accent);
}

.opmi-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.opmi-footer ul li {
    margin-bottom: 0.4rem;
}

.opmi-footer__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.opmi-footer__bottom {
    padding: 1.5rem 0;
    text-align: center;
}

.opmi-footer__copy {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* ==========================================================================
   BACK TO TOP
   ========================================================================== */
.opmi-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--opmi-primary);
    color: var(--opmi-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--opmi-transition);
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.opmi-back-to-top:hover {
    background: var(--opmi-accent);
    color: var(--opmi-white);
}

.opmi-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ==========================================================================
   JOOMLA SYSTEM MESSAGES
   ========================================================================== */
#system-message-container {
    margin-bottom: 1.5rem;
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--opmi-radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    position: relative;
}

.alert-info    { background: #e8f4fd; border-left: 4px solid #2196F3; color: #1565C0; }
.alert-success { background: #e8f5e9; border-left: 4px solid var(--opmi-green); color: #2e7d32; }
.alert-warning { background: #fff8e1; border-left: 4px solid var(--opmi-accent); color: #e65100; }
.alert-danger,
.alert-error   { background: #fde8e8; border-left: 4px solid #e74c3c; color: #c62828; }

.alert .close,
.alert .btn-close {
    position: absolute;
    top: 0.75rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--opmi-transition);
}

.alert .close:hover,
.alert .btn-close:hover {
    opacity: 1;
}

/* ==========================================================================
   OFFLINE PAGE
   ========================================================================== */
.opmi-offline {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--opmi-bg);
    padding: 2rem;
}

.opmi-offline__inner {
    background: var(--opmi-white);
    padding: 3rem;
    border-radius: var(--opmi-radius);
    box-shadow: var(--opmi-shadow);
    max-width: 480px;
    width: 100%;
    text-align: center;
}

.opmi-offline__inner h1 {
    margin-bottom: 1.5rem;
}

.opmi-offline__inner img {
    margin: 0 auto 1.5rem;
    max-width: 200px;
}

.opmi-offline__inner fieldset {
    border: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.opmi-offline__inner label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}

.opmi-offline__inner input[type="text"],
.opmi-offline__inner input[type="password"] {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--opmi-border);
    border-radius: var(--opmi-radius);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    font-family: var(--opmi-font-body);
    transition: border-color var(--opmi-transition);
}

.opmi-offline__inner input:focus {
    border-color: var(--opmi-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--opmi-primary-rgb), 0.15);
}

.opmi-offline__inner .opmi-btn {
    width: 100%;
    margin-top: 0.5rem;
}

/* ==========================================================================
   FORMS (general)
   ========================================================================== */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="tel"],
input[type="number"],
textarea,
select {
    font-family: var(--opmi-font-body);
    font-size: 0.95rem;
    padding: 0.6rem 0.85rem;
    border: 1px solid var(--opmi-border);
    border-radius: var(--opmi-radius);
    transition: border-color var(--opmi-transition), box-shadow var(--opmi-transition);
    width: 100%;
    max-width: 100%;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--opmi-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--opmi-primary-rgb), 0.15);
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */
.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 2rem 0;
    gap: 0.25rem;
    justify-content: center;
}

.pagination li a,
.pagination li span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--opmi-border);
    border-radius: var(--opmi-radius);
    font-size: 0.9rem;
    color: var(--opmi-primary);
    transition: all var(--opmi-transition);
}

.pagination li a:hover {
    background: var(--opmi-primary);
    color: var(--opmi-white);
    border-color: var(--opmi-primary);
}

.pagination li.active span {
    background: var(--opmi-primary);
    color: var(--opmi-white);
    border-color: var(--opmi-primary);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 992px) {
    .opmi-hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .opmi-hero__cta {
        justify-content: center;
    }

    .opmi-hero__visual {
        order: -1;
    }

    .opmi-hero__shield {
        max-width: 320px;
    }

    .opmi-main__grid.has-sidebar-left,
    .opmi-main__grid.has-sidebar-right,
    .opmi-main__grid.has-sidebar-left.has-sidebar-right {
        grid-template-columns: 1fr;
    }

    .opmi-footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .opmi-header__toggle {
        display: flex;
    }

    .opmi-header__nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        height: 100dvh;
        background: var(--opmi-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 5rem 2rem 2rem;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        transition: right var(--opmi-transition);
        z-index: 1000;
        overflow-y: auto;
    }

    .opmi-header__nav.is-open {
        right: 0;
    }

    .opmi-header__nav ul {
        flex-direction: column;
        width: 100%;
    }

    .opmi-header__nav ul ul {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
    }

    .opmi-header__nav a {
        padding: 1rem 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--opmi-border);
    }

    .opmi-hero {
        padding: 2.5rem 0 3rem;
    }

    .opmi-hero__title {
        font-size: 1.75rem;
    }

    .opmi-hero__tagline {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-inline: 1rem;
    }

    .opmi-hero__cta {
        flex-direction: column;
        width: 100%;
    }

    .opmi-hero__cta .opmi-btn {
        width: 100%;
        text-align: center;
    }

    .opmi-btn {
        padding: 0.75rem 1.5rem;
    }
}

/* ---------- Focus Visible for Accessibility ---------- */
:focus-visible {
    outline: 3px solid var(--opmi-accent);
    outline-offset: 2px;
}

/* ---------- Skip to Content (a11y) ---------- */
.skip-to-content {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--opmi-primary);
    color: var(--opmi-white);
    padding: 0.75rem 1.5rem;
    z-index: 9999;
    font-weight: 600;
    font-family: var(--opmi-font-primary);
}

.skip-to-content:focus {
    top: 0;
}

/* ---------- Selection ---------- */
::selection {
    background: rgba(var(--opmi-accent-rgb), 0.3);
    color: var(--opmi-primary);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--opmi-bg);
}

::-webkit-scrollbar-thumb {
    background: rgba(var(--opmi-primary-rgb), 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--opmi-primary-rgb), 0.5);
}

/* ---------- Print ---------- */
@media print {
    .opmi-header,
    .opmi-footer,
    .opmi-back-to-top,
    .opmi-header__toggle,
    .opmi-hero__cta {
        display: none !important;
    }

    .opmi-hero {
        background: none !important;
        padding: 1rem 0;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    a {
        color: #000;
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}