/* =========================================
   CALCZAP COMPLETE MOBILE CSS
   File: assets/css/mobile.css
   ========================================= */

/* --- Tablet & Mobile Styles (Max Width: 768px) --- */
@media (max-width: 768px) {
    body {
        font-size: 16px;
        line-height: 1.5;
        overflow-x: hidden;
    }

    .container {
        padding: 0 var(--space-3);
        max-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }

    /* --- Buttons --- */
    .btn {
        min-height: 44px;
        min-width: 44px;
        padding: var(--space-3) var(--space-4);
        font-size: 16px;
        margin: var(--space-2);
        box-sizing: border-box;
    }

    .btn-large {
        padding: var(--space-4) var(--space-6);
        font-size: 18px;
        min-height: 48px;
    }

    /* --- Advanced Header --- */
    .header-advanced {
        position: relative;
        top: 0;
        left: 0;
        right: 0;
        z-index: var(--z-fixed);
        width: 100%;
        height: 60px;
        max-height: 60px;
    }

    .navbar-advanced {
        width: 100%;
        height: 60px;
        display: flex;
        align-items: center;
    }

    .navbar-advanced .container {
        padding: var(--space-2) var(--space-3);
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
    }

    .nav-brand-advanced .logo-advanced {
        font-size: 18px;
        display: flex;
        align-items: center;
        gap: var(--space-2);
    }

    .nav-brand-advanced .logo-image {
        width: 28px;
        height: 28px;
    }

    /* --- Mobile Menu Drawer --- */
    .nav-menu-advanced {
        position: fixed !important;
        top: 60px !important;
        left: 0 !important;
        right: 0 !important;
        background: #fff !important;
        border-top: 1px solid var(--gray-200) !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, .15) !important;
        transform: translateY(-100%) !important;
        transition: all .3s ease !important;
        z-index: 1000 !important;
        max-height: calc(100vh - 60px) !important;
        overflow-y: auto !important;
        width: 100% !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }

    .nav-menu-advanced.active {
        transform: translateY(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
    }

    .nav-list-advanced {
        flex-direction: column !important;
        gap: 0 !important;
        padding: var(--space-4) 0 !important;
        margin: 0 !important;
        list-style: none !important;
        width: 100% !important;
    }

    .nav-item-advanced {
        width: 100% !important;
        border-bottom: 1px solid var(--gray-100) !important;
    }

    .nav-link-advanced {
        display: flex !important;
        align-items: center !important;
        gap: var(--space-3) !important;
        padding: var(--space-4) var(--space-6) !important;
        font-size: 16px !important;
        text-decoration: none !important;
        color: var(--gray-700) !important;
        width: 100% !important;
        box-sizing: border-box !important;
        min-height: 44px !important;
    }

    .nav-link-advanced.active,
    .nav-link-advanced:active,
    .nav-link-advanced:hover {
        background: var(--primary-50) !important;
        color: var(--primary-600) !important;
    }

    .nav-actions {
        display: none !important;
    }

    /* --- Hamburger Toggle --- */
    .nav-toggle-advanced {
        display: flex !important;
        flex-direction: column;
        gap: 4px;
        cursor: pointer;
        padding: 8px;
        z-index: 1001;
        background: 0 0;
        border: none;
        width: 44px;
        height: 44px;
        justify-content: center;
        align-items: center;
        position: relative;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .hamburger-line {
        width: 24px;
        height: 3px;
        background: var(--gray-700);
        border-radius: 2px;
        transition: all .3s ease;
        display: block;
    }

    .nav-toggle-advanced.active .hamburger-line:first-child {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle-advanced.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle-advanced.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* --- Dropdowns --- */
    .dropdown-advanced .dropdown-menu-advanced {
        position: static !important;
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        box-shadow: none !important;
        border: none !important;
        border-radius: 0 !important;
        padding: 0 !important;
        min-width: auto !important;
        background: var(--gray-50) !important;
        width: 100% !important;
        max-width: 100% !important;
        max-height: 60vh !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        display: none !important;
        left: 0 !important;
        right: 0 !important;
    }

    .dropdown-advanced .dropdown-menu-advanced.show {
        display: block;
    }

    .dropdown-toggle-advanced .dropdown-arrow {
        transition: transform .3s ease;
    }

    .dropdown-advanced.active .dropdown-arrow {
        transform: rotate(180deg);
    }

    .dropdown-grid-advanced {
        display: block !important;
        gap: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
    }

    .dropdown-section-advanced {
        margin-bottom: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
    }

    .dropdown-section-advanced h4 {
        padding: var(--space-3) var(--space-4) !important;
        background: var(--gray-100) !important;
        margin: 0 !important;
        font-size: 14px !important;
        font-weight: 600 !important;
        color: var(--gray-800) !important;
        border-bottom: 1px solid var(--gray-200) !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
    }

    .dropdown-section-advanced a {
        display: flex !important;
        align-items: center !important;
        gap: var(--space-2) !important;
        padding: var(--space-3) var(--space-4) !important;
        border-bottom: 1px solid var(--gray-200) !important;
        text-decoration: none !important;
        color: var(--gray-600) !important;
        min-height: 44px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        font-size: 15px !important;
        line-height: 1.3 !important;
        overflow: hidden !important;
    }

    .dropdown-section-advanced a span {
        flex: 1 !important;
        text-align: left !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        max-width: calc(100% - 30px) !important;
    }

    .dropdown-section-advanced a i {
        font-size: 16px !important;
        width: 20px !important;
        text-align: center !important;
        flex-shrink: 0 !important;
    }

    .dropdown-section-advanced a:active,
    .dropdown-section-advanced a:hover {
        background: var(--primary-50);
        color: var(--primary-600);
    }

    /* --- Hero Section --- */
    .hero-advanced {
        min-height: 100vh;
        padding-top: 20px;
        padding-bottom: var(--space-16);
        width: 100%;
        overflow-x: hidden;
    }

    .hero-content-advanced {
        display: block;
        text-align: center;
        width: 100%;
    }

    .hero-text-advanced {
        margin-bottom: var(--space-12);
        width: 100%;
    }

    .hero-title-advanced {
        font-size: clamp(1.875rem, 5vw, 3rem);
        line-height: 1.2;
        margin-bottom: var(--space-6);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .hero-description-advanced {
        font-size: 16px;
        margin-bottom: var(--space-8);
        line-height: 1.6;
    }

    .hero-features-list {
        display: block;
        text-align: left;
        margin-bottom: var(--space-8);
        width: 100%;
    }

    .feature-item {
        margin-bottom: var(--space-3);
        display: flex;
        align-items: center;
        gap: var(--space-2);
        font-size: 16px;
    }

    .hero-buttons-advanced {
        display: flex;
        flex-direction: column;
        gap: var(--space-4);
        margin-bottom: var(--space-12);
        width: 100%;
    }

    .hero-buttons-advanced .btn-advanced {
        width: 100%;
        justify-content: center;
        min-height: 48px;
    }

    .hero-stats-advanced {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
        margin-top: var(--space-8);
        width: 100%;
    }

    .stat-item {
        text-align: center;
        padding: var(--space-3);
    }

    .hero-visual-advanced {
        margin-top: var(--space-8);
        width: 100%;
        overflow: hidden;
    }

    * {
        max-width: 100%;
        box-sizing: border-box;
    }

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

    .calculator-showcase,
    .calculator-window {
        max-width: 100%;
        overflow: hidden;
    }

    /* --- Typography Fixes --- */
    .calculator-card h3,
    .hero-title-advanced,
    .nav-link-advanced span,
    .section-title,
    .text-container {
        overflow: visible !important;
        white-space: normal !important;
        text-overflow: clip !important;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    /* --- Calculator Filters --- */
    .calculator-filter-tabs {
        display: flex !important;
        flex-wrap: wrap;
        gap: var(--space-2);
        justify-content: center;
        margin-bottom: var(--space-6);
        width: 100%;
        padding: 0 var(--space-2);
        box-sizing: border-box;
    }

    .filter-tab {
        flex: 1 1 auto;
        min-width: 120px;
        max-width: 160px;
        font-size: 14px;
        padding: var(--space-3) var(--space-2);
        min-height: 44px;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-1);
        border-radius: var(--radius-lg);
        border: 2px solid var(--gray-200);
        background: #fff;
        color: var(--gray-600);
        transition: all .3s ease;
        cursor: pointer;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        box-sizing: border-box;
    }

    .filter-tab.active {
        background: var(--primary-600);
        color: #fff;
        border-color: var(--primary-600);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(59, 130, 246, .3);
    }

    .filter-tab:hover:not(.active) {
        background: var(--gray-50);
        border-color: var(--gray-300);
        transform: translateY(-1px);
    }

    .filter-tab i {
        font-size: 14px;
    }
}

/* --- Small Mobile (Max Width: 480px) --- */
@media (max-width: 480px) {
    .calculator-filter-tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-tab {
        flex: none;
        min-width: 100%;
        max-width: 100%;
        margin-bottom: var(--space-2);
    }
}

/* --- Tablets (481px to 768px) --- */
@media (min-width: 481px) and (max-width: 768px) {
    .calculator-filter-tabs {
        justify-content: space-between;
    }

    .filter-tab {
        flex: 1 1 calc(50% - var(--space-1));
        min-width: calc(50% - var(--space-1));
        max-width: calc(50% - var(--space-1));
    }
}

/* --- General Grid & Layout --- */
@media (max-width: 768px) {

    .blog-grid,
    .calculators-grid,
    .category-tabs,
    .featured-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: var(--space-4);
        width: 100%;
    }

    .blog-card,
    .calculator-card,
    .category-tab,
    .featured-article {
        margin-bottom: var(--space-4);
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        min-height: 120px;
    }

    .calculator-card {
        padding: var(--space-4);
        border-radius: var(--radius-lg);
        border: 1px solid var(--gray-200);
        background: #fff;
        transition: all .3s ease;
        box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
    }

    .calculator-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(0, 0, 0, .15);
    }

    .calculator-card .card-title {
        font-size: 18px;
        margin-bottom: var(--space-2);
        line-height: 1.3;
    }

    .calculator-card .card-description {
        font-size: 14px;
        line-height: 1.5;
        margin-bottom: var(--space-3);
        color: var(--gray-600);
    }

    .calculator-card .card-link {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        font-size: 14px;
        font-weight: 500;
        color: var(--primary-600);
        text-decoration: none;
        min-height: 44px;
        padding: var(--space-2) 0;
    }

    .calculator-card .card-link:hover {
        color: var(--primary-700);
    }

    .collection-header {
        text-align: center;
        margin-bottom: var(--space-8);
    }

    .collection-title {
        font-size: clamp(1.5rem, 4vw, 2.25rem);
        line-height: 1.3;
        margin-bottom: var(--space-3);
    }

    .collection-subtitle {
        font-size: 16px;
        line-height: 1.6;
        color: var(--gray-600);
        max-width: 100%;
    }

    .hero-title-advanced,
    h1 {
        font-size: clamp(1.875rem, 5vw, 3rem);
        line-height: 1.2;
        margin-bottom: var(--space-6);
    }

    .section-title,
    h2 {
        font-size: clamp(1.5rem, 4vw, 2.25rem);
        line-height: 1.3;
        margin-bottom: var(--space-4);
    }

    h3 {
        font-size: clamp(1.25rem, 3vw, 1.875rem);
        line-height: 1.4;
        margin-bottom: var(--space-3);
    }

    .hero-description-advanced,
    p {
        font-size: 16px;
        line-height: 1.6;
        margin-bottom: var(--space-4);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .form-group {
        margin-bottom: var(--space-4);
        width: 100%;
    }

    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px;
        padding: var(--space-3);
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        border-radius: var(--radius-md);
        border: 1px solid var(--gray-300);
        min-height: 44px;
    }

    label {
        font-size: 16px;
        font-weight: 500;
        margin-bottom: var(--space-2);
        display: block;
    }

    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        width: 100%;
        margin-bottom: var(--space-4);
    }

    table {
        min-width: 600px;
        font-size: 14px;
        width: 100%;
    }

    .cookie-banner {
        padding: var(--space-3);
        width: 100%;
        box-sizing: border-box;
    }

    .cookie-content {
        flex-direction: column;
        gap: var(--space-3);
        text-align: center;
        width: 100%;
    }

    .cookie-buttons {
        flex-direction: column;
        width: 100%;
        gap: var(--space-2);
    }

    .cookie-buttons .btn {
        width: 100%;
        min-height: 44px;
    }

    .blog-hero-title {
        font-size: clamp(1.875rem, 5vw, 3rem);
        line-height: 1.2;
    }

    .blog-search .search-container {
        max-width: 100%;
        width: 100%;
    }

    .calculator-container {
        padding: var(--space-4);
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .calculator-form {
        margin-bottom: var(--space-6);
        width: 100%;
    }

    .calculator-results {
        padding: var(--space-4);
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .result-item {
        padding: var(--space-3);
        margin-bottom: var(--space-3);
        width: 100%;
        box-sizing: border-box;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
        width: 100%;
    }

    .footer-section {
        margin-bottom: var(--space-6);
        width: 100%;
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .mobile-hidden {
        display: none !important;
    }

    .mobile-visible {
        display: block !important;
    }

    .mobile-text-center {
        text-align: center !important;
    }

    .mobile-full-width {
        width: 100% !important;
    }

    .section {
        padding: var(--space-12) 0;
        width: 100%;
    }

    .section-header {
        margin-bottom: var(--space-8);
        width: 100%;
    }

    .section-title {
        font-size: clamp(1.5rem, 4vw, 2.25rem);
        margin-bottom: var(--space-4);
    }

    .section-subtitle {
        font-size: 16px;
        line-height: 1.6;
    }

    .floating-shape {
        display: none;
    }

    .hero-particles {
        display: none;
    }

    .btn:focus,
    .form-input:focus,
    .nav-link-advanced:focus {
        outline: 2px solid var(--primary-500);
        outline-offset: 2px;
    }

    * {
        -webkit-tap-highlight-color: transparent;
    }

    .smooth-scroll {
        scroll-behavior: smooth;
    }

    .btn,
    .calculator-card,
    .nav-link-advanced,
    a,
    button {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--space-2) var(--space-3);
        margin: var(--space-1);
        box-sizing: border-box;
    }

    body,
    html {
        overflow-x: hidden;
        max-width: 100%;
    }

    .container,
    .hero-content-advanced,
    .nav-menu-advanced {
        max-width: 100%;
        overflow-x: hidden;
    }
}

/* --- Dark Mode & Theming --- */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
    body {
        background-color: var(--gray-900);
        color: var(--gray-100);
    }

    .nav-menu-advanced {
        background: var(--gray-800);
        border-top-color: var(--gray-700);
    }

    .nav-link-advanced {
        color: var(--gray-200);
        border-bottom-color: var(--gray-700);
    }

    .nav-link-advanced.active,
    .nav-link-advanced:hover {
        background: var(--primary-900);
        color: var(--primary-200);
    }

    .blog-card,
    .calculator-form-section,
    .featured-article {
        background: var(--gray-800);
        border: 1px solid var(--gray-700);
    }

    .form-input,
    .form-select {
        background: var(--gray-700);
        border-color: var(--gray-600);
        color: var(--gray-100);
    }

    .hamburger-line {
        background: var(--gray-200);
    }
}

/* --- Print Styles --- */
@media print {
    .cookie-banner,
    .floating-shape,
    .hero-particles,
    .nav-menu-advanced,
    .nav-toggle-advanced {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
    }

    .container {
        max-width: none;
        padding: 0;
    }
}