/* Mobile Responsive Styles */

/* ==================== GENERAL ==================== */
* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
    font-size: clamp(14px, 2vw, 16px);
    padding-bottom: 0;
}

/* Body scroll lock when mobile menu is open */
body.menu-open {
    overflow: hidden !important;
    position: fixed !important;
    width: 100% !important;
    height: 100% !important;
}

/* ==================== MOBILE HEADER FIX ==================== */
@media (max-width: 768px) {
    /* Fix header for mobile */
    .header {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 10000 !important;
        background: var(--bg-color, #fff) !important;
        height: 60px !important;
        width: 100% !important;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
    }
    
    .header .header-container {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 0 16px !important;
        height: 60px !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    /* Hide desktop nav */
    .header .nav {
        display: none !important;
    }
    
    /* Hamburger button */
    .hamburger {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 44px;
        height: 44px;
        cursor: pointer;
        z-index: 10001;
        position: relative;
        background: transparent;
        border: none;
        padding: 0;
    }
    
    .hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-primary, #333);
        margin: 2px 0;
        transition: 0.3s ease;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* Mobile menu */
    .mobile-menu {
        display: block !important;
        position: fixed !important;
        top: 60px !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        height: calc(100vh - 60px) !important;
        background: var(--bg-color, #fff) !important;
        z-index: 9999 !important;
        padding: 20px !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        transform: translateX(-100%) !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        box-shadow: 0 4px 20px rgba(0,0,0,0.15) !important;
    }
    
    .mobile-menu.active {
        transform: translateX(0) !important;
    }
    
    .mobile-menu .mobile-nav-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    
    .mobile-menu .mobile-nav-list li {
        margin: 0;
        padding: 0;
    }
    
    .mobile-menu .mobile-nav-link {
        display: block;
        padding: 14px 18px;
        font-size: 16px;
        color: var(--text-primary, #333);
        text-decoration: none;
        border-radius: 8px;
        background: var(--bg-light, #f5f5f5);
        transition: all 0.2s ease;
    }
    
    .mobile-menu .mobile-nav-link:hover,
    .mobile-menu .mobile-nav-link:active {
        background: var(--primary, #4F46E5);
        color: white;
        padding-left: 24px;
    }
    
    /* Main content padding for fixed header */
    main {
        margin-top: 60px !important;
    }
    
    /* Header actions */
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        z-index: 10001;
    }
    
    .header-actions .theme-toggle {
        padding: 8px;
    }
}

h1, h2, h3, h4, h5, h6 {
    font-size: clamp(18px, 4vw, 32px);
}

/* Meta viewport is already in HTML */

/* Touch targets */
button, 
a, 
input[type="checkbox"], 
input[type="radio"], 
.select-wrapper {
    min-height: 44px;
    min-width: 44px;
}

/* Input sizes - prevent iOS zoom */
input, 
textarea, 
select {
    min-height: 48px;
    font-size: 16px !important;
}

.form-input,
.form-textarea,
.form-select,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"] {
    min-height: 48px;
    font-size: 16px;
}

/* ==================== BREAKPOINTS ==================== */
/* max-width 600px → phones */
/* max-width 768px → phones and tablets */
/* min-width 769px → tablets and desktop */

/* ==================== LAYOUT ==================== */
.container {
    padding: 20px 16px;
}

.stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.tools-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* Card padding */
.stat-card,
.section,
.tool-card,
.fav-card,
.history-card,
.info-card,
.auth-container,
.profile-page,
.fav-page,
.history-page,
.admin-page {
    padding: 16px;
}

@media (min-width: 769px) {
    .stat-card,
    .section,
    .info-card,
    .auth-container,
    .profile-page,
    .fav-page,
    .history-page,
    .admin-page {
        padding: 24px;
    }
    
    .tools-grid {
        gap: 20px;
    }
}

/* ==================== NAVIGATION ==================== */

/* Hide desktop nav on mobile */
@media (max-width: 768px) {
    .header .nav {
        display: none !important;
    }
    
    .hamburger {
        display: flex !important;
    }
}

/* Mobile header - FIXED VERSION */
@media (max-width: 768px) {
    .header {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 10000 !important;
        background: var(--bg-color, #fff) !important;
        height: 60px !important;
        width: 100% !important;
    }
    
    .header .nav-container {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 0 16px !important;
        height: 60px !important;
        width: 100% !important;
    }
    
    .header .logo {
        display: flex !important;
        align-items: center !important;
        gap: 8px !important;
        z-index: 10001 !important;
    }
    
    .header-actions {
        display: flex !important;
        align-items: center !important;
        gap: 12px !important;
        z-index: 10001 !important;
    }
    
    .hamburger {
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        width: 44px !important;
        height: 44px !important;
        cursor: pointer !important;
        z-index: 10001 !important;
        position: relative !important;
        background: transparent !important;
        border: none !important;
        padding: 0 !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }
    
    .hamburger span {
        display: block !important;
        width: 24px !important;
        height: 2px !important;
        background: currentColor !important;
        margin: 2px 0 !important;
        transition: 0.3s ease !important;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px) !important;
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0 !important;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px) !important;
    }
    
    /* MOBILE MENU - SINGLE DEFINITION (NO DUPLICATES) */
    .mobile-menu {
        display: block !important;
        position: fixed !important;
        top: 60px !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        height: calc(100vh - 60px) !important;
        background: var(--bg-color, #fff) !important;
        z-index: 9998 !important;
        padding: 20px !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        transform: translateX(-100%) !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        visibility: hidden !important;
        will-change: transform !important;
    }
    
    .mobile-menu.active {
        transform: translateX(0) !important;
        visibility: visible !important;
    }
    
    .mobile-nav-list {
        list-style: none !important;
        padding: 0 !important;
        margin: 0 !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 8px !important;
    }
    
    .mobile-nav-list li {
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .mobile-nav-link {
        display: block !important;
        padding: 14px 18px !important;
        font-size: 16px !important;
        color: var(--text-primary, #333) !important;
        text-decoration: none !important;
        border-radius: 8px !important;
        background: var(--bg-light, #f5f5f5) !important;
        transition: all 0.2s ease !important;
        cursor: pointer !important;
    }
    
    .mobile-nav-link:hover,
    .mobile-nav-link:active {
        background: var(--primary, #4F46E5) !important;
        color: white !important;
        padding-left: 24px !important;
    }
    
    .mobile-nav-link.active {
        background: var(--primary, #4F46E5) !important;
        color: white !important;
    }
}

/* Show main content with padding for fixed header */
@media (max-width: 768px) {
    main {
        margin-top: 60px !important;
        padding-top: 0 !important;
    }
}

/* Desktop: hide mobile menu and hamburger */
@media (min-width: 769px) {
    .hamburger {
        display: none !important;
    }
    
    .mobile-menu {
        display: none !important;
    }
    
    .bottom-nav {
        display: none !important;
    }
    
    body {
        padding-bottom: 0 !important;
    }
    
    main {
        margin-top: 0 !important;
    }
}

/* ==================== BUTTONS ==================== */
.btn {
    font-size: 15px;
    padding: 12px 20px;
    min-height: 48px;
}

@media (max-width: 768px) {
    .btn {
        width: 100%;
    }
    
    .btn-run {
        width: auto;
        padding: 10px 16px;
    }
}

@media (min-width: 769px) {
    .btn {
        width: auto;
    }
}

/* Icon only on mobile for destructive actions */
@media (max-width: 768px) {
    .btn-delete,
    .remove-fav {
        min-width: 44px;
        min-height: 44px;
        padding: 8px;
        font-size: 18px;
    }
    
    .btn-delete span,
    .remove-fav span {
        display: none;
    }
}

/* ==================== FORMS ==================== */
@media (max-width: 768px) {
    .form-group {
        margin-bottom: 16px;
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        width: 100%;
        padding: 12px 16px;
    }
    
    .auth-container {
        margin: 40px 16px;
        padding: 24px 20px;
        max-width: none;
    }
    
    .profile-page {
        margin: 20px 16px;
        padding: 20px;
    }
}

@media (min-width: 769px) {
    .form-input,
    .form-textarea,
    .form-select {
        max-width: 480px;
    }
    
    .auth-container {
        max-width: 400px;
    }
    
    .profile-page {
        max-width: 600px;
    }
}

/* ==================== DASHBOARD ==================== */
@media (max-width: 768px) {
    .dashboard-header h1 {
        font-size: clamp(20px, 5vw, 28px);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-card .stat-value {
        font-size: 28px;
    }
    
    /* Tools grid - single column on mobile */
    .tools-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .tool-card {
        min-height: 180px;
    }
}

/* ==================== CARDS & COMPONENTS ==================== */
@media (max-width: 768px) {
    .card {
        border-radius: 12px;
        padding: 16px;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* Tool Card on Mobile */
@media (max-width: 768px) {
    .tool-card {
        display: flex;
        flex-direction: column;
        min-height: 180px;
        padding: 12px;
        border-radius: 12px;
    }
    
    .tool-card .card-button {
        margin-top: auto;
    }
    
    .tool-card-icon {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .tool-card-icon svg,
    .tool-card-icon span {
        font-size: 18px;
    }
    
    .tool-card h3 {
        font-size: 14px;
        font-weight: 600;
        margin-top: 10px;
        white-space: normal;
        overflow: visible;
    }
    
    .tool-card p {
        font-size: 12px;
        color: #6b7280;
        line-height: 1.5;
        margin-bottom: 10px;
        overflow: visible;
    }
    
    .tool-card .btn-run {
        width: 100%;
        padding: 8px 10px;
        font-size: 12px;
        border-radius: 8px;
        height: max(34px);
    }
    
    .section-header h2 {
        font-size: clamp(18px, 3vw, 22px);
        font-weight: 700;
        margin-bottom: 16px;
    }
    
    .section-header p {
        font-size: 13px;
        color: #6b7280;
    }
}

/* Ensure tool card structure works */
.tool-card {
    background: var(--card-bg, #fff);
}

.tool-card .card-content {
    min-height: 0;
}

/* ==================== FOOTER ==================== */
/* Footer styles are now in styles.css */

/* ==================== AUTH PAGES ==================== */
@media (max-width: 768px) {
    .auth-links {
        text-align: center;
    }
    
    .auth-links a {
        display: block;
        padding: 8px 0;
    }
    
    .auth-divider {
        margin: 16px 0;
    }
}

/* ==================== NO HORIZONTAL SCROLL ==================== */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        max-width: 100vw;
    }
    
    .container,
    .tool-page-container,
    .dashboard-page {
        max-width: 100vw;
        overflow-x: hidden;
    }
}

/* ==================== PERFORMANCE ==================== */
img {
    loading: lazy;
}

/* Use transform and opacity for animations */
* {
    transition-property: transform, opacity;
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
}

/* ==================== INPUT ZOOM FIX ==================== */
@media (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="url"],
    select,
    textarea {
        font-size: 16px !important;
    }
    
    input:focus,
    select:focus,
    textarea:focus {
        font-size: 16px !important;
    }
}

/* ==================== HERO SECTION ==================== */
@media (max-width: 768px) {
    .hero {
        padding: 20px 16px 40px;
        min-height: auto;
        display: block;
    }
    
    .hero-title {
        font-size: clamp(24px, 6vw, 32px);
        margin-bottom: 12px;
    }
    
    .hero-subtitle {
        font-size: clamp(14px, 3vw, 16px);
        margin-bottom: 20px;
        line-height: 1.5;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-cta {
        display: inline-block;
    }
}

/* ==================== TOOL PAGE ==================== */
@media (max-width: 768px) {
    .tool-page-content {
        grid-template-columns: 1fr;
    }
    
    .tool-info-sidebar {
        flex-direction: column;
    }
    
    .tool-page-title {
        font-size: clamp(20px, 5vw, 28px);
    }
    
    .breadcrumb {
        flex-wrap: wrap;
    }
    
    .tool-form-section {
        padding: 20px 16px;
    }
}

/* ==================== SEARCH & FILTERS ==================== */
@media (max-width: 768px) {
    .search-box {
        width: 100%;
    }
    
    .category-filters {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .filter-btn {
        padding: 10px 14px;
        font-size: 13px;
    }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.4s ease-out;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #eee 25%, #f5f5f5 50%, #eee 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ==================== EMPTY STATES ==================== */
@media (max-width: 768px) {
    .empty-state {
        padding: 30px 16px;
    }
    
    .empty-state p {
        font-size: 14px;
    }
}

/* ==================== FLOATING DASHBOARD BUTTON ==================== */
/* Hidden on desktop by default, shown only on mobile */
.floating-dashboard-btn {
    display: none;
}

/* Show on mobile only - Polished modern style */
@media (max-width: 768px) {
    .floating-dashboard-btn {
        display: flex;
        position: fixed;
        bottom: 100px;
        right: 20px;
        z-index: 9999;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 20px;
        background: linear-gradient(135deg, #4F46E5 0%, #8B5CF6 100%);
        color: white;
        border: none;
        border-radius: 50px;
        font-weight: 600;
        font-size: 14px;
        box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4), 0 2px 5px rgba(0,0,0,0.1);
        cursor: pointer;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        text-decoration: none;
        animation: floatIn 0.5s ease-out;
    }

    @keyframes floatIn {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .floating-dashboard-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5), 0 4px 10px rgba(0,0,0,0.15);
        background: linear-gradient(135deg, #4338CA 0%, #7C3AED 100%);
    }

    .floating-dashboard-btn:active {
        transform: translateY(-1px) scale(0.98);
        box-shadow: 0 2px 10px rgba(79, 70, 229, 0.3);
    }

    .floating-dashboard-btn svg {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
    }

    .floating-dashboard-btn .btn-label {
        white-space: nowrap;
        letter-spacing: 0.3px;
    }
}

.floating-dashboard-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(79, 70, 229, 0.5);
    background: linear-gradient(135deg, #4338CA, #7C3AED);
}

.floating-dashboard-btn:active {
    transform: translateY(-1px);
}

.floating-dashboard-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.floating-dashboard-btn .btn-label {
    white-space: nowrap;
}

/* Mobile: smaller, icon only */
@media (max-width: 768px) {
    .floating-dashboard-btn {
        bottom: 160px;
        right: 16px;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        padding: 0;
        justify-content: center;
    }
    
    .feedback-floating-btn {
        bottom: 160px;
    }
    
    .floating-dashboard-btn .btn-label {
        display: none;
    }
    
    .floating-dashboard-btn::after {
        content: '';
    }
}

/* Ensure it doesn't overlap with bottom nav */
@media (max-width: 768px) {
    .floating-dashboard-btn {
        bottom: calc(64px + 20px);
    }
}

/* Tablet and up: show full pill */
@media (min-width: 769px) {
    .floating-dashboard-btn {
        display: flex;
    }
}

/* ==================== SCROLL TOP BUTTON ==================== */
@media (max-width: 768px) {
    .scroll-top {
        bottom: 80px;
        right: 16px;
        width: 44px;
        height: 44px;
    }
}

/* ==================== LOADING ==================== */
@media (max-width: 768px) {
    .loading {
        padding: 30px 16px;
        font-size: 14px;
    }
    
    .skeleton-text {
        height: 14px;
    }
    
    .skeleton-title {
        height: 20px;
    }
}