/* ===== CSS Variables ===== */
:root {
    --primary: #702641;
    --primary-light: #8a3352;
    --primary-dark: #561d32;
    --primary-subtle: rgba(112, 38, 65, 0.1);
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    color: var(--gray-700);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.logo-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.platform-toggle {
    display: flex;
    gap: 0.5rem;
}

.toggle-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.toggle-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.toggle-btn.active {
    background: var(--white);
    color: var(--primary);
}

/* ===== Main ===== */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ===== Search Section ===== */
.search-section {
    margin-bottom: 2rem;
}

.search-container {
    max-width: 700px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1.25rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-subtle);
}

.search-icon {
    font-size: 1.25rem;
    margin-right: 0.75rem;
    opacity: 0.5;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    font-family: inherit;
    background: transparent;
}

.clear-btn {
    background: var(--gray-100);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.search-box input:not(:placeholder-shown)~.clear-btn {
    opacity: 1;
}

.clear-btn:hover {
    background: var(--gray-200);
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    justify-content: center;
}

.search-tag {
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-subtle);
}

/* ===== Categories Section ===== */
.categories-section {
    text-align: center;
    margin-bottom: 2rem;
}

.categories-title {
    font-size: 1.75rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.categories-subtitle {
    color: var(--gray-500);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.category-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.category-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.category-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.category-card:hover .category-card-icon {
    transform: scale(1.1);
}

.category-card-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

.category-card h3 {
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.category-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.4;
}

/* ===== Guides Section ===== */
.guides-section {
    margin-bottom: 2rem;
}

.guides-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.back-btn {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}

.back-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-subtle);
}

.guides-title {
    font-size: 1.5rem;
    color: var(--gray-900);
    font-weight: 600;
}

.category-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.category-tab {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.category-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.category-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ===== Guides Grid ===== */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.guide-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    transform: scaleX(0);
    transition: var(--transition);
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.guide-card:hover::before {
    transform: scaleX(1);
}

.guide-meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.guide-platform,
.guide-category-tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.625rem;
    border-radius: 4px;
    font-weight: 500;
}

.guide-platform {
    background: var(--gray-100);
    color: var(--gray-700);
}

.guide-platform.web {
    background: #dbeafe;
    color: #1d4ed8;
}

.guide-platform.app {
    background: #dcfce7;
    color: #166534;
}

.guide-category-tag {
    background: var(--primary-subtle);
    color: var(--primary);
}

.guide-card h3 {
    font-size: 1.1rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.guide-card p {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.guide-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 1rem;
}

.guide-tag {
    font-size: 0.7rem;
    background: var(--gray-100);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--gray-500);
}

/* ===== No Results ===== */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    display: none;
}

.no-results-icon {
    font-size: 4rem;
    opacity: 0.3;
}

.no-results h3 {
    margin: 1rem 0 0.5rem;
    color: var(--gray-700);
}

.no-results p {
    color: var(--gray-500);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    transform: translateY(20px);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gray-100);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
}

.modal-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.modal-platform,
.modal-category {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-weight: 500;
}

.modal-platform {
    background: #dbeafe;
    color: #1d4ed8;
}

.modal-platform.app {
    background: #dcfce7;
    color: #166534;
}

.modal-category {
    background: var(--primary-subtle);
    color: var(--primary);
}

.modal-title {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.modal-content {
    color: var(--gray-700);
}

.modal-content p {
    margin-bottom: 1rem;
}

.modal-content .step {
    background: var(--gray-50);
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary);
}

.modal-content .step-number {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 0.75rem;
}

.modal-content .tip {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    padding: 1rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
}

.modal-content .tip::before {
    content: '💡 ';
}

.modal-content .screenshot {
    background: var(--gray-100);
    border: 2px dashed var(--gray-300);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    color: var(--gray-500);
    margin: 1.5rem 0;
}

.modal-content .screenshot img {
    max-width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: block;
    margin: 0 auto;
}

.modal-content .screenshot-caption {
    margin: 0.75rem 0 0;
    font-size: 0.82rem;
    color: var(--gray-500);
    line-height: 1.5;
    text-align: left;
}

.modal-content .marker {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    margin: 0 0.25rem;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--gray-500);
    font-size: 0.875rem;
    border-top: 1px solid var(--gray-200);
    margin-top: 3rem;
}

/* ===== Responsive ===== */

/* iPad Landscape & Desktop Small (1024px - 1200px) */
@media (max-width: 1200px) {
    .main {
        padding: 1.5rem;
    }

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

/* iPad Portrait (768px - 1024px) */
@media (max-width: 1024px) {
    .header {
        padding: 1.25rem 1.5rem;
    }

    .logo-icon {
        font-size: 2rem;
    }

    .logo-text h1 {
        font-size: 1.35rem;
    }

    .category-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .category-card {
        padding: 2rem 1.5rem;
    }

    .category-card-icon {
        font-size: 2.75rem;
    }

    .category-card h3 {
        font-size: 1.1rem;
    }

    .guides-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

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

    .guide-card {
        padding: 1.25rem;
    }

    .modal {
        max-width: 90%;
        padding: 1.75rem;
    }
}

/* Mobile Landscape & Tablet Small (600px - 768px) */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }

    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 0.5rem;
        text-align: left;
    }

    .logo {
        flex-direction: row;
        align-items: center;
        gap: 0.75rem;
        justify-content: flex-start;
    }

    .logo-text {
        text-align: left;
    }

    .logo-text p {
        display: none;
    }

    .logo-icon {
        font-size: 1.5rem;
    }

    .logo-text h1 {
        font-size: 1.15rem;
    }

    .logo-text p {
        font-size: 0.8rem;
    }

    .logo-title-row {
        justify-content: flex-start;
        width: 100%;
    }

    .platform-toggle {
        width: auto;
        justify-content: flex-end;
        gap: 0.25rem;
    }

    .toggle-btn {
        flex: 0 1 auto;
        padding: 0.35rem 0.5rem;
        font-size: 0.75rem;
        white-space: nowrap;
    }

    .main {
        padding: 0.75rem;
    }

    .search-section {
        margin-bottom: 1rem;
    }

    .search-box {
        padding: 0.5rem 0.875rem;
    }

    .search-box input {
        font-size: 0.95rem;
    }

    .search-box input::placeholder {
        font-size: 0.85rem;
    }

    .search-tags {
        gap: 0.375rem;
    }

    .search-tag {
        padding: 0.3rem 0.7rem;
        font-size: 0.75rem;
    }

    .categories-title {
        font-size: 1.35rem;
    }

    .categories-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .category-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: 340px;
        margin: 0 auto;
    }

    .category-card {
        padding: 1.5rem;
        display: flex;
        align-items: center;
        gap: 1.25rem;
        text-align: left;
    }

    .category-card-icon {
        font-size: 2.5rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .category-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.25rem;
    }

    .category-card p {
        font-size: 0.85rem;
    }

    .guides-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .back-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .guides-title {
        font-size: 1.25rem;
    }

    .guides-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .guide-card {
        padding: 1.25rem;
    }

    .guide-card h3 {
        font-size: 1rem;
    }

    .guide-card p {
        font-size: 0.825rem;
    }

    .modal-overlay {
        padding: 0.75rem;
    }

    .modal {
        padding: 1.5rem;
        max-height: 90vh;
        border-radius: var(--radius);
    }

    .modal-title {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .modal-content .step {
        padding: 0.875rem 1rem;
    }

    .modal-content .screenshot {
        padding: 1rem 0.75rem;
    }
}

/* Mobile Portrait (unter 480px) */
@media (max-width: 480px) {
    .header {
        padding: 0.875rem;
    }

    .logo-icon {
        font-size: 2rem;
    }

    .logo-text h1 {
        font-size: 1.15rem;
    }

    .platform-toggle {
        gap: 0.375rem;
    }

    .toggle-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.75rem;
    }

    .main {
        padding: 0.875rem;
    }

    .search-section {
        margin-bottom: 1.25rem;
    }

    .search-box {
        padding: 0.5rem 0.875rem;
        border-radius: var(--radius);
    }

    .search-icon {
        font-size: 1.1rem;
        margin-right: 0.5rem;
    }

    .search-box input {
        font-size: 0.9rem;
    }

    .search-tags {
        margin-top: 0.75rem;
    }

    .quick-start {
        margin-bottom: 2rem;
    }

    .quick-start h2 {
        font-size: 1.15rem;
    }

    .section-subtitle {
        font-size: 0.8rem;
        margin-bottom: 1rem;
    }

    .quick-cards {
        grid-template-columns: 1fr;
        gap: 0.625rem;
    }

    .quick-card {
        padding: 1rem;
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .quick-card-icon {
        font-size: 1.75rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .quick-card h3 {
        font-size: 0.9rem;
        margin-bottom: 0.125rem;
    }

    .categories-section {
        margin-bottom: 1rem;
    }

    .category-tabs {
        gap: 0.25rem;
        margin: 0 -0.875rem;
        padding: 0 0.875rem 0.5rem;
    }

    .guide-card {
        padding: 1rem;
    }

    .guide-meta {
        gap: 0.375rem;
    }

    .guide-platform,
    .guide-category-tag {
        font-size: 0.65rem;
        padding: 0.2rem 0.5rem;
    }

    .guide-card h3 {
        font-size: 0.95rem;
    }

    .guide-tags {
        margin-top: 0.75rem;
    }

    .guide-tag {
        font-size: 0.65rem;
    }

    .modal-overlay {
        padding: 0.5rem;
    }

    .modal {
        padding: 1.25rem;
    }

    .modal-close {
        width: 32px;
        height: 32px;
        top: 0.75rem;
        right: 0.75rem;
        font-size: 1.1rem;
    }

    .modal-header {
        flex-wrap: wrap;
    }

    .modal-title {
        font-size: 1.15rem;
        padding-right: 2rem;
    }

    .modal-content .step {
        padding: 0.75rem;
    }

    .modal-content .step-number {
        width: 22px;
        height: 22px;
        line-height: 22px;
        font-size: 0.75rem;
    }

    .modal-content .tip {
        padding: 0.875rem;
        font-size: 0.9rem;
    }

    .modal-content .screenshot {
        padding: 0.75rem;
    }

    .footer {
        padding: 1.5rem 1rem;
        font-size: 0.8rem;
        margin-top: 2rem;
    }
}

/* Touch-Optimierungen */
@media (hover: none) and (pointer: coarse) {

    .toggle-btn,
    .category-tab,
    .search-tag,
    .guide-card,
    .quick-card {
        -webkit-tap-highlight-color: transparent;
    }

    .guide-card:hover,
    .quick-card:hover {
        transform: none;
    }

    .guide-card:active,
    .quick-card:active {
        transform: scale(0.98);
    }
}

.web-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--white);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.footer-web-link {
    background: var(--gray-100);
    color: var(--primary);
    border-color: var(--gray-200);
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.footer-web-link:hover {
    background: var(--primary-subtle);
    color: var(--primary);
    border-color: var(--primary);
}

.web-link:hover {
    background: rgba(255, 255, 255, 0.25);
    text-decoration: none;
    color: var(--white);
}

@media (max-width: 600px) {
    .logo-title-row {
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 0.5rem !important;
    }
}