/* ================================
   CSS Variables for Theme Colors
   Version: 2.1 - Navigation Menu Added
   ================================ */

:root {
    /* Light Theme Colors */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --card-bg: #ffffff;
    --input-bg: #f8f9fa;

    /* Spacing and Layout */
    --container-max-width: 1200px;
    --header-height: 70px;
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

/* Dark Theme Colors */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);
    --accent-color: #60a5fa;
    --accent-hover: #3b82f6;
    --card-bg: #1e293b;
    --input-bg: #0f172a;
}

/* ================================
   Reset and Base Styles
   ================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================
   Header Styles
   ================================ */

.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.site-title-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: opacity var(--transition-speed);
}

.site-title-link:hover {
    opacity: 0.8;
}

.site-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    transition: color var(--transition-speed);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
    flex-shrink: 0;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Authentication Menu Styles */
.auth-link {
    padding: 10px 20px;
    border-radius: 24px;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-speed);
    border: 2px solid transparent;
    display: flex;
    align-items: center;
    gap: 6px;
}

.auth-link:hover {
    color: var(--accent-color);
}

.auth-link.register-link {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.auth-link.register-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
}

.auth-link.logout-link {
    padding: 10px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
}

.auth-link.logout-link:hover {
    background: #fee;
    border-color: #fcc;
}

.auth-link.logout-link:hover svg {
    stroke: #c33;
}

.auth-link.logout-link svg {
    width: 20px;
    height: 20px;
    margin: 0;
}

.user-menu-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px 6px 6px;
    border-radius: 24px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    text-decoration: none;
    transition: all var(--transition-speed);
}

.user-menu-link:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.user-menu-link:hover .user-avatar {
    background: white;
    color: var(--accent-color);
}

.user-menu-link:hover .user-name {
    color: white;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.938rem;
    transition: all var(--transition-speed);
    flex-shrink: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: color var(--transition-speed);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

/* Navigation Menu Dropdown */
.nav-menu-container {
    position: relative;
}

.nav-menu-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 24px;
    cursor: pointer;
    transition: all var(--transition-speed);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.nav-menu-toggle:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.nav-menu-toggle:hover svg {
    stroke: white;
}

.nav-menu-toggle svg {
    width: 20px;
    height: 20px;
    transition: stroke var(--transition-speed);
}

.nav-menu-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    min-width: 280px;
    max-width: 320px;
    box-shadow: 0 8px 24px var(--shadow-hover);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    max-height: 80vh;
    overflow-y: auto;
}

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

.nav-section {
    padding: 8px 0;
}

.nav-section:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.nav-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-section-header svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.nav-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.938rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-menu-item:hover {
    background: var(--input-bg);
    color: var(--accent-color);
}

.nav-menu-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: stroke var(--transition-speed);
}

.nav-menu-item:hover svg {
    stroke: var(--accent-color);
}

.nav-menu-item.nav-register {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    margin-top: 8px;
}

.nav-menu-item.nav-register:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.nav-menu-item.nav-register svg {
    stroke: white;
}

.nav-menu-item.nav-profile {
    padding: 12px;
}

.nav-user-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
    overflow: hidden;
    border: 2px solid rgba(102, 126, 234, 0.2);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
    transition: all 0.25s ease;
}

.nav-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nav-menu-item.nav-profile:hover .nav-user-avatar {
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
    transform: scale(1.05);
}

.nav-user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-user-name {
    font-weight: 600;
    font-size: 0.938rem;
    color: var(--text-primary);
}

.nav-user-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-toggle {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 24px;
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-speed);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.language-toggle:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.language-toggle svg {
    width: 20px;
    height: 20px;
    transition: color var(--transition-speed);
}

.language-toggle:hover svg {
    color: white;
}

#currentLanguage {
    min-width: 20px;
    text-align: center;
    font-weight: 700;
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    min-width: 160px;
    box-shadow: 0 8px 16px var(--shadow-hover);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9375rem;
    color: var(--text-primary);
    transition: all 0.2s;
    text-align: left;
}

.language-option:hover {
    background: var(--accent-color);
    color: white;
}

.language-option .flag {
    font-size: 1.25rem;
    line-height: 1;
}

.language-option span:last-child {
    font-weight: 500;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
    position: relative;
}

.theme-toggle:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: rotate(15deg) scale(1.05);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    position: absolute;
}

.theme-toggle:hover svg {
    color: #ffffff;
}

/* Icon visibility based on theme */
.sun-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

.moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .sun-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .moon-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

/* ================================
   Main Content Styles
   ================================ */

.main {
    flex: 1;
    padding: 60px 0;
}

/* Welcome Section - Enhanced */
.welcome-section {
    text-align: center;
    margin-bottom: 60px;
    padding: 60px 20px 40px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.welcome-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.05) 0%, transparent 70%);
    animation: pulse-slow 8s ease-in-out infinite;
}

@keyframes pulse-slow {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.welcome-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    position: relative;
    animation: fadeInDown 0.6s ease-out;
}

.welcome-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    transition: all var(--transition-speed);
    position: relative;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.welcome-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 30px;
    transition: color var(--transition-speed);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.welcome-features {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.feature-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    cursor: default;
}

.feature-pill svg {
    width: 18px;
    height: 18px;
    color: var(--accent-color);
}

.feature-pill:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

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

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

/* Typewriter Animation */
.typewriter-text {
    display: inline;
    border-right: 3px solid var(--accent-color);
    padding-right: 5px;
    animation: blink-caret 0.75s step-end infinite;
}

.typewriter-text.typing-complete {
    border-right: none;
    animation: none;
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-color); }
}

/* ================================
   Tools Grid (Flexbox Layout)
   ================================ */

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

/* Tool Card - Enhanced */
.tool-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    box-shadow: 0 4px 6px var(--shadow-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: fadeInScale 0.6s ease-out backwards;
}

/* Staggered animation for cards */
.tool-card:nth-child(1) { animation-delay: 0.8s; }
.tool-card:nth-child(2) { animation-delay: 0.9s; }
.tool-card:nth-child(3) { animation-delay: 1.0s; }
.tool-card:nth-child(4) { animation-delay: 1.1s; }
.tool-card:nth-child(5) { animation-delay: 1.2s; }
.tool-card:nth-child(6) { animation-delay: 1.3s; }
.tool-card:nth-child(7) { animation-delay: 1.4s; }
.tool-card:nth-child(8) { animation-delay: 1.5s; }
.tool-card:nth-child(9) { animation-delay: 1.6s; }

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Shine/glitter effect */
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.15), transparent);
    transition: left 0.5s ease;
}

.tool-card:hover::before {
    left: 100%;
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px var(--shadow-hover);
    border-color: var(--accent-color);
}

/* Tool Icon */
.tool-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 50%;
    transition: all var(--transition-speed);
}

.tool-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent-color);
    transition: all var(--transition-speed);
}

.tool-card:hover .tool-icon {
    background: var(--accent-color);
    transform: scale(1.1) rotate(5deg);
}

.tool-card:hover .tool-icon svg {
    color: #ffffff;
    transform: scale(1.15);
}

/* Tool Title */
.tool-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
    transition: color var(--transition-speed);
    width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.tool-card:hover .tool-title {
    color: var(--accent-color);
}

/* Tool Description */
.tool-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: color var(--transition-speed);
    line-height: 1.5;
}

/* ================================
   Contact Section Styles
   ================================ */

.contact-sections-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 60px;
    margin-bottom: 40px;
    align-items: stretch;
}

.contact-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    display: flex;
}

.contact-section.fade-in-contact {
    opacity: 1;
    transform: translateY(0);
}

.contact-card {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    transition: all var(--transition-speed);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 16px var(--shadow-hover);
}

.contact-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.contact-header svg {
    width: 28px;
    height: 28px;
    color: var(--accent-color);
}

.contact-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 24px;
    line-height: 1.6;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 32px;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    margin-top: auto;
    align-self: center;
}

.contact-link svg:first-of-type {
    width: 24px;
    height: 24px;
}

.contact-link .arrow-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s;
}

.contact-link:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.contact-link:hover .arrow-icon {
    transform: translateX(4px);
}

/* Donation Section - Orange Theme */

.donation-card {
    background: linear-gradient(135deg, rgba(255, 115, 0, 0.05), rgba(255, 145, 0, 0.05));
    border: 2px solid rgba(255, 115, 0, 0.3);
}

.donation-card:hover {
    border-color: #ff7300;
    box-shadow: 0 8px 16px rgba(255, 115, 0, 0.2);
}

.donation-header svg {
    color: #ff7300;
}

.donation-link {
    background: #ff7300;
    box-shadow: 0 4px 12px rgba(255, 115, 0, 0.3);
}

.donation-link:hover {
    background: #e66600;
    box-shadow: 0 6px 16px rgba(255, 115, 0, 0.4);
}

/* ================================
   About Section
   ================================ */

.about-section {
    margin-top: 60px;
    margin-bottom: 40px;
    padding: 60px 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.03), rgba(139, 92, 246, 0.03));
    border-radius: var(--border-radius);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    text-align: center;
}

.about-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.about-header svg {
    width: 36px;
    height: 36px;
    color: var(--accent-color);
}

.about-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.about-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 48px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.about-feature {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: all 0.3s;
}

.about-feature:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 16px var(--shadow-hover);
    transform: translateY(-4px);
}

.about-feature svg {
    width: 48px;
    height: 48px;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.about-feature h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.about-feature p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ================================
   Footer Styles
   ================================ */

.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    margin-top: auto;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.footer-content {
    text-align: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 5px 0;
    transition: color var(--transition-speed);
}

.footer-tagline {
    font-style: italic;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.footer-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.footer-link:hover {
    color: #667eea;
}

.footer-link:hover::after {
    width: 100%;
}

.footer-divider {
    color: var(--text-secondary);
    opacity: 0.5;
    font-size: 0.875rem;
}

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

/* Tablets (768px and below) */
@media (max-width: 768px) {
    .welcome-title {
        font-size: 2rem;
    }

    .welcome-description {
        font-size: 1rem;
    }

    .tools-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 20px;
    }

    .tool-card {
        padding: 30px 20px;
    }

    .tool-icon {
        width: 70px;
        height: 70px;
    }

    .contact-sections-wrapper {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-card {
        padding: 30px 20px;
    }

    .contact-header h3 {
        font-size: 1.5rem;
    }

    .tool-icon svg {
        width: 35px;
        height: 35px;
    }

    .site-title {
        font-size: 1.5rem;
    }

    .logo-icon {
        width: 28px;
        height: 28px;
    }

    /* Center navigation dropdown on tablets/phones */
    .nav-menu-dropdown {
        position: fixed !important;
        top: calc(var(--header-height) + 8px) !important;
        left: 50% !important;
        right: auto !important;
        transform: translateX(-50%) translateY(-10px) !important;
        width: 90% !important;
        max-width: 320px !important;
        min-width: unset !important;
    }

    .nav-menu-dropdown.active {
        transform: translateX(-50%) translateY(0) !important;
    }
}

/* Mobile Phones (480px and below) */
@media (max-width: 480px) {
    .main {
        padding: 40px 0;
    }

    .welcome-section {
        margin-bottom: 35px;
    }

    .welcome-title {
        font-size: 1.75rem;
    }

    .welcome-description {
        font-size: 0.9375rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tool-card {
        padding: 25px 20px;
    }

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

    .tool-description {
        font-size: 0.875rem;
    }

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

    .theme-toggle {
        width: 44px;
        height: 44px;
    }

    .theme-toggle svg {
        width: 22px;
        height: 22px;
    }

    .header-controls {
        gap: 8px;
    }

    .language-toggle {
        padding: 8px 12px;
        font-size: 0.8125rem;
    }

    .language-toggle svg {
        width: 18px;
        height: 18px;
    }

    .container {
        padding: 0 16px;
    }

    /* Hide user name on mobile */
    .user-name {
        display: none;
    }

    .user-menu-link {
        padding: 6px;
    }

    .auth-link {
        padding: 8px 14px;
        font-size: 0.813rem;
    }

    .auth-link.logout-link {
        padding: 8px;
    }

    .auth-link.logout-link svg {
        width: 18px;
        height: 18px;
    }

    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }

    /* Navigation menu mobile adjustments */
    .nav-menu-toggle {
        padding: 8px 12px;
        font-size: 0.813rem;
    }

    .nav-menu-toggle span {
        display: none;
    }

    .nav-menu-toggle svg {
        width: 18px;
        height: 18px;
    }

    .nav-menu-dropdown {
        position: fixed !important;
        top: calc(var(--header-height) + 8px) !important;
        left: 50% !important;
        right: auto !important;
        transform: translateX(-50%) translateY(-10px) !important;
        width: 90% !important;
        max-width: 320px !important;
        min-width: unset !important;
    }

    .nav-menu-dropdown.active {
        transform: translateX(-50%) translateY(0) !important;
    }

    /* Footer responsive */
    .footer-links {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .footer-link {
        font-size: 0.813rem;
    }

    .footer-divider {
        font-size: 0.813rem;
    }

    /* Page header responsive */
    .page-header {
        padding: 30px 20px;
        margin-bottom: 30px;
    }

    .page-title {
        font-size: 1.75rem;
    }
}

/* Extra small devices (360px and below) */
@media (max-width: 360px) {
    .welcome-title {
        font-size: 1.5rem;
    }

    .site-title {
        font-size: 1.125rem;
        gap: 8px;
    }

    .logo-icon {
        width: 24px;
        height: 24px;
    }

    .page-title {
        font-size: 1.5rem;
    }
}

/* ================================
   Animation Utilities
   ================================ */

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

.tool-card {
    animation: fadeIn 0.5s ease-out backwards;
}

.tool-card:nth-child(1) {
    animation-delay: 0.1s;
}

.tool-card:nth-child(2) {
    animation-delay: 0.2s;
}

.tool-card:nth-child(3) {
    animation-delay: 0.3s;
}

.tool-card:nth-child(4) {
    animation-delay: 0.4s;
}

.tool-card:nth-child(5) {
    animation-delay: 0.5s;
}

.tool-card:nth-child(6) {
    animation-delay: 0.6s;
}

.tool-card:nth-child(7) {
    animation-delay: 0.7s;
}

.tool-card:nth-child(8) {
    animation-delay: 0.8s;
}

.tool-card:nth-child(9) {
    animation-delay: 0.9s;
}

/* ================================
   Enhanced Tool Page Headers
   ================================ */

/* Back button - positioned outside the header block and centered */
.container > .back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 auto 20px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.container > .back-link:hover {
    color: var(--accent-color);
    background: var(--bg-primary);
    transform: translateX(calc(-50% - 4px));
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 20px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
}

.back-link:hover {
    color: var(--accent-color);
    background: var(--bg-primary);
    transform: translateX(-4px);
}

.back-link svg {
    width: 20px;
    height: 20px;
}

/* Enhanced page header for tool pages */
.page-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 50px 30px 40px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.04) 0%, rgba(118, 75, 162, 0.04) 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.06) 0%, transparent 70%);
    animation: pulse-slow 8s ease-in-out infinite;
}

.page-header > * {
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 20px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: inline-block;
}

.page-description {
    color: var(--text-secondary);
    font-size: 1rem !important;
    min-height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 700px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

/* Typewriter text styling within tool pages */
.page-description .typewriter-text {
    display: inline;
    font-size: 1rem !important;
    border-right: 3px solid var(--accent-color);
    padding-right: 5px;
    animation: blink-caret 0.75s step-end infinite;
}

.page-description .typewriter-text.typing-complete {
    border-right: none;
    animation: none;
}

/* ================================
   Floating Icons for Tool Pages
   ================================ */

.page-header > .floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0 !important;
}

.page-header .floating-shapes .floating-shape {
    position: absolute;
    opacity: 0.12;
}

.page-header .floating-shape svg {
    width: 45px;
    height: 45px;
    stroke: currentColor;
    stroke-width: 1.5;
    fill: none;
}

/* Shape positions, colors, and individual animations */
.page-header .shape-1 {
    top: 15%;
    left: 8%;
    color: #667eea;
    animation: floatShape1 8s ease-in-out infinite;
}

.page-header .shape-2 {
    top: 60%;
    left: 5%;
    color: #764ba2;
    animation: floatShape2 9s ease-in-out infinite;
}

.page-header .shape-3 {
    top: 25%;
    right: 10%;
    color: #f093fb;
    animation: floatShape3 7s ease-in-out infinite;
}

.page-header .shape-4 {
    top: 70%;
    right: 8%;
    color: #4facfe;
    animation: floatShape4 10s ease-in-out infinite;
}

.page-header .shape-5 {
    top: 40%;
    left: 15%;
    color: #43e97b;
    animation: floatShape5 11s ease-in-out infinite;
}

.page-header .shape-6 {
    top: 45%;
    right: 15%;
    color: #fa709a;
    animation: floatShape6 8.5s ease-in-out infinite;
}

/* Individual animations for each shape */
@keyframes floatShape1 {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.12; }
    50% { transform: translateY(-18px) rotate(8deg); opacity: 0.18; }
}

@keyframes floatShape2 {
    0%, 100% { transform: translateX(0) rotate(0deg); opacity: 0.14; }
    50% { transform: translateX(15px) rotate(-6deg); opacity: 0.20; }
}

@keyframes floatShape3 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.12; }
    33% { transform: translate(-10px, -12px) rotate(5deg); opacity: 0.18; }
    66% { transform: translate(8px, -8px) rotate(-3deg); opacity: 0.15; }
}

@keyframes floatShape4 {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.13; }
    50% { transform: translateY(20px) rotate(-10deg); opacity: 0.19; }
}

@keyframes floatShape5 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.11; }
    25% { transform: translate(12px, -8px) rotate(4deg); opacity: 0.17; }
    75% { transform: translate(-8px, 10px) rotate(-4deg); opacity: 0.16; }
}

@keyframes floatShape6 {
    0%, 100% { transform: translateX(0) rotate(0deg); opacity: 0.14; }
    50% { transform: translateX(-18px) rotate(12deg); opacity: 0.20; }
}

/* Mobile responsive for floating icons */
@media (max-width: 768px) {
    .page-header .floating-shape svg {
        width: 30px;
        height: 30px;
    }

    .page-header .floating-shape {
        opacity: 0.08;
    }

    .page-header .shape-5 svg,
    .page-header .shape-6 svg {
        width: 25px;
        height: 25px;
    }
}

/* ================================
   Accessibility
   ================================ */

/* Focus styles for keyboard navigation */
.theme-toggle:focus,
.tool-card:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}