/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0a4d68;
    --secondary-color: #088395;
    --accent-color: #05bfdb;
    --light-color: #00ffca;
    --dark-color: #001233;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --gray-dark: #666;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease-in-out;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Enhanced Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.05;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particles::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, var(--light-color) 1px, transparent 1px);
    background-size: 20px 20px;
    animation: moveBackground 30s linear infinite;
}

@keyframes moveBackground {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(40px, 40px);
    }
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(10, 77, 104, 0.05), rgba(5, 191, 219, 0.05));
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% {
        opacity: 0.05;
        background: linear-gradient(45deg, rgba(10, 77, 104, 0.05), rgba(5, 191, 219, 0.05));
    }
    25% {
        opacity: 0.08;
        background: linear-gradient(90deg, rgba(10, 77, 104, 0.08), rgba(5, 191, 219, 0.08));
    }
    50% {
        opacity: 0.1;
        background: linear-gradient(135deg, rgba(10, 77, 104, 0.1), rgba(5, 191, 219, 0.1));
    }
    75% {
        opacity: 0.08;
        background: linear-gradient(180deg, rgba(10, 77, 104, 0.08), rgba(5, 191, 219, 0.08));
    }
    100% {
        opacity: 0.05;
        background: linear-gradient(225deg, rgba(10, 77, 104, 0.05), rgba(5, 191, 219, 0.05));
    }
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 80px;
    height: 80px;
    background-color: var(--accent-color);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 18s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    background-color: var(--light-color);
    top: 70%;
    left: 80%;
    animation-delay: 2s;
    animation-duration: 22s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    background-color: var(--secondary-color);
    top: 40%;
    left: 30%;
    animation-delay: 4s;
    animation-duration: 16s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    background-color: var(--primary-color);
    top: 20%;
    left: 60%;
    animation-delay: 6s;
    animation-duration: 20s;
}

.shape-5 {
    width: 90px;
    height: 90px;
    background-color: var(--accent-color);
    top: 80%;
    left: 20%;
    animation-delay: 8s;
    animation-duration: 24s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg) scale(1);
    }
    25% {
        transform: translateY(-30px) rotate(90deg) scale(1.1);
    }
    50% {
        transform: translateY(20px) rotate(180deg) scale(0.9);
    }
    75% {
        transform: translateY(-15px) rotate(270deg) scale(1.05);
    }
}

/* Enhanced Header Styles */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
    transition: var(--transition);
}

.header:hover {
    box-shadow: var(--shadow-hover);
    background-color: rgba(255, 255, 255, 0.98);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--accent-color);
    animation: pulse 2s infinite;
    transition: var(--transition);
}

.logo:hover i {
    transform: scale(1.2);
    color: var(--light-color);
}

@keyframes pulse {
    0% {
        transform: scale(1);
        text-shadow: 0 0 0 0 rgba(5, 191, 219, 0.7);
    }
    70% {
        transform: scale(1.1);
        text-shadow: 0 0 0 10px rgba(5, 191, 219, 0);
    }
    100% {
        transform: scale(1);
        text-shadow: 0 0 0 0 rgba(5, 191, 219, 0);
    }
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 2rem;
    position: relative;
}

.nav ul li a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav ul li a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.4s ease;
}

.nav ul li a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.nav ul li a:hover::before {
    width: 100%;
}

/* Enhanced Main Content */
.main {
    padding: 3rem 0;
    position: relative;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    animation: fadeInDown 1.2s ease;
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-dark);
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1.2s ease 0.3s both;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-animation {
    margin-top: 2rem;
    height: 80px;
    position: relative;
}

.floating-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.floating-icons i {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.7;
    animation: floatIcon 4s ease-in-out infinite;
    transition: var(--transition);
}

.floating-icons i:hover {
    color: var(--accent-color);
    transform: scale(1.2);
}

.floating-icons i:nth-child(1) { animation-delay: 0s; }
.floating-icons i:nth-child(2) { animation-delay: 0.5s; }
.floating-icons i:nth-child(3) { animation-delay: 1s; }
.floating-icons i:nth-child(4) { animation-delay: 1.5s; }
.floating-icons i:nth-child(5) { animation-delay: 2s; }
.floating-icons i:nth-child(6) { animation-delay: 2.5s; }

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-15px) rotate(5deg);
    }
    50% {
        transform: translateY(0) rotate(-5deg);
    }
    75% {
        transform: translateY(-10px) rotate(3deg);
    }
}

/* Enhanced Tools Section */
.tools-section {
    margin-bottom: 3rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.tool-card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.tool-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(5, 191, 219, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.tool-card.visible {
    opacity: 1;
    transform: translateY(0);
    animation: cardAppear 0.6s ease forwards;
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tool-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
}

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

.tool-card:hover::after {
    opacity: 1;
}

.tool-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--primary-color);
}

.tool-icon i {
    margin: 0 0.5rem;
    transition: var(--transition);
}

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

.tool-icon .fa-arrow-right {
    color: var(--accent-color);
    animation: arrowPulse 2s infinite;
}

@keyframes arrowPulse {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(5px);
    }
}

.tool-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-align: center;
    transition: var(--transition);
}

.tool-card:hover h3 {
    color: var(--accent-color);
}

.tool-card p {
    color: var(--gray-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.tool-features {
    margin-bottom: 1.5rem;
}

.tool-features ul {
    list-style-type: none;
    padding: 0;
}

.tool-features li {
    font-size: 0.9rem;
    color: var(--gray-dark);
    margin-bottom: 0.3rem;
    position: relative;
    padding-left: 1.5rem;
}

.tool-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.tool-interface {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Enhanced Upload Area with Drag & Drop */
.upload-area {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.upload-area.dragover {
    background-color: rgba(5, 191, 219, 0.1);
    border-color: var(--accent-color);
    transform: scale(1.02);
}

.upload-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background-color: var(--gray-light);
    border: 2px dashed var(--gray-medium);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.upload-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(5, 191, 219, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.upload-btn:hover {
    background-color: var(--gray-medium);
    border-color: var(--accent-color);
    transform: scale(1.02);
}

.upload-btn:hover::before {
    width: 300px;
    height: 300px;
}

.upload-btn i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.upload-btn:hover i {
    color: var(--accent-color);
    transform: scale(1.1);
}

.options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.options label {
    font-weight: 500;
    color: var(--dark-color);
}

.options input[type="range"],
.options select,
.options input[type="number"] {
    padding: 0.5rem;
    border: 1px solid var(--gray-medium);
    border-radius: 4px;
    background-color: var(--white);
    transition: var(--transition);
}

.options input[type="range"]:focus,
.options select:focus,
.options input[type="number"]:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(5, 191, 219, 0.2);
}

.options input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    border-radius: 5px;
    background: var(--gray-light);
    outline: none;
}

.options input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.options input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(5, 191, 219, 0.5);
}

.options input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.options input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(5, 191, 219, 0.5);
}

.dimension-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dimension-input label {
    min-width: 100px;
}

.aspect-ratio {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.file-info,
.file-list {
    padding: 0.5rem;
    background-color: var(--gray-light);
    border-radius: 4px;
}

.file-name,
.file-count {
    font-weight: 500;
    color: var(--dark-color);
}

.file-size {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

.selected-files {
    list-style-type: none;
    margin-top: 0.5rem;
}

.selected-files li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
    color: var(--gray-dark);
}

.size-comparison {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    background-color: var(--gray-light);
    border-radius: 4px;
}

/* Enhanced Preview Container */
.preview-container {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.preview-original,
.preview-compressed,
.preview-svg,
.preview-resized,
.preview-video,
.preview-gif {
    flex: 1;
    text-align: center;
}

.preview-container p {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.preview-image-container {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    border: 1px solid var(--gray-medium);
    transition: var(--transition);
}

.preview-image-container:hover {
    border-color: var(--accent-color);
    transform: scale(1.02);
}

.preview-container img,
.preview-container video,
#svg-preview {
    max-width: 100%;
    max-height: 150px;
    display: block;
    transition: var(--transition);
}

.preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
    cursor: pointer;
}

.preview-image-container:hover .preview-overlay {
    opacity: 1;
}

.preview-overlay i {
    font-size: 1.5rem;
    transition: var(--transition);
}

.preview-image-container:hover .preview-overlay i {
    transform: scale(1.2);
}

.result-area {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--gray-light);
    border-radius: 4px;
}

.result-images {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.result-images img {
    max-width: 100px;
    max-height: 100px;
    border: 1px solid var(--gray-medium);
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
}

.result-images img:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow);
    border-color: var(--accent-color);
}

.result-message {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.convert-btn,
.download-btn,
.download-all-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.convert-btn::before,
.download-btn::before,
.download-all-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.convert-btn:active::before,
.download-btn:active::before,
.download-all-btn:active::before {
    width: 300px;
    height: 300px;
}

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

.convert-btn:hover:not(:disabled) {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.download-btn,
.download-all-btn {
    background-color: var(--accent-color);
    color: var(--white);
}

.download-btn:hover:not(:disabled),
.download-all-btn:hover:not(:disabled) {
    background-color: var(--light-color);
    color: var(--dark-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.convert-btn:disabled,
.download-btn:disabled,
.download-all-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Enhanced Ad Zones */
.ad-zone {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.ad-placeholder {
    background-color: var(--gray-light);
    border: 1px dashed var(--gray-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-dark);
    transition: var(--transition);
}

.ad-placeholder:hover {
    border-color: var(--accent-color);
    color: var(--primary-color);
}

.ad-horizontal .ad-placeholder {
    width: 728px;
    height: 90px;
}

.sidebar-ad {
    position: fixed;
    top: 120px;
    right: 20px;
    width: 300px;
    height: 250px;
    z-index: 10;
}

.sidebar-ad .ad-placeholder {
    width: 100%;
    height: 100%;
}

/* Enhanced Footer */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.youtube-support {
    display: flex;
    justify-content: center;
}

.youtube-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background-color: #ff0000;
    color: var(--white);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    animation: pulse 2s infinite;
    position: relative;
    overflow: hidden;
}

.youtube-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s;
}

.youtube-btn:hover::before {
    left: 100%;
}

.youtube-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 0, 0, 0.4);
}

.donation-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.donation-section h3 {
    font-size: 1.8rem;
    color: var(--light-color);
    text-align: center;
}

.donation-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
}

.qr-code-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.qr-code-placeholder:hover {
    transform: scale(1.05);
}

.qr-code {
    width: 200px;
    height: 273px;
    border: 4px solid var(--white);
    border-radius: 8px;
    transition: var(--transition);
}

.qr-code-placeholder:hover .qr-code {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    transform: rotate(2deg);
}

.qr-instruction {
    color: var(--gray-medium);
    font-weight: 500;
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.payment-details {
    width: 100%;
    max-width: 600px;
}

.animated-text {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.deposit-text,
.network-text {
    font-size: 1.2rem;
    color: var(--light-color);
    opacity: 0;
    animation: fadeIn 1s forwards;
}

.deposit-text {
    animation-delay: 0.5s;
}

.network-text {
    animation-delay: 1s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wallet-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.wallet-label {
    font-size: 1.1rem;
    color: var(--white);
}

.wallet-address-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.75rem;
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.wallet-address-container:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.wallet-address {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--light-color);
    word-break: break-all;
    flex: 1;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.copy-btn:hover {
    background-color: var(--light-color);
    color: var(--dark-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.copy-btn:active {
    transform: translateY(0);
}

/* Made By Mahim Section */
.made-by-section {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}

.made-by-text {
    font-size: 1.5rem;
    color: var(--white);
    position: relative;
    display: inline-block;
}

.mahim-text {
    color: var(--light-color);
    font-weight: 700;
    position: relative;
    display: inline-block;
    text-shadow: 0 0 10px rgba(0, 255, 202, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(0, 255, 202, 0.5);
    }
    to {
        text-shadow: 0 0 20px rgba(0, 255, 202, 0.8), 0 0 30px rgba(0, 255, 202, 0.6);
    }
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-medium);
}

/* Enhanced Toast Notification */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--dark-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
    transition: bottom 0.5s ease, transform 0.5s ease;
    z-index: 1000;
}

.toast.show {
    bottom: 30px;
    animation: toastBounce 0.5s ease;
}

@keyframes toastBounce {
    0% {
        bottom: -100px;
        transform: translateX(-50%) scale(0.8);
    }
    50% {
        transform: translateX(-50%) scale(1.05);
    }
    100% {
        bottom: 30px;
        transform: translateX(-50%) scale(1);
    }
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toast-content i {
    color: var(--light-color);
    animation: checkmark 0.5s ease;
}

@keyframes checkmark {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* Enhanced Loading Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: var(--white);
    margin: 15% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 80%;
    max-width: 300px;
    text-align: center;
    box-shadow: var(--shadow-hover);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.spinner {
    border: 4px solid var(--gray-light);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--gray-light);
    border-radius: 4px;
    margin-top: 1rem;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    animation: progressPulse 1.5s ease infinite;
}

@keyframes progressPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* QR Code Modal */
.qr-modal-content {
    max-width: 500px;
    text-align: center;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--gray-dark);
    cursor: pointer;
    transition: var(--transition);
    background: none;
    border: none;
}

.close-btn:hover {
    color: var(--primary-color);
    transform: rotate(90deg);
}

.qr-full {
    max-width: 100%;
    max-height: 400px;
    border: 4px solid var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
}

.qr-full:hover {
    transform: scale(1.02);
}

.qr-full-text {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    animation: blink 2s infinite;
}

/* Image Preview Modal */
.image-modal-content {
    max-width: 90%;
    max-height: 90%;
    margin: 5% auto;
    padding: 1rem;
}

#modal-image {
    max-width: 100%;
    max-height: 80vh;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
}

/* SEO Content Section */
.seo-content {
    margin-top: 3rem;
    padding: 2rem 0;
    border-top: 1px solid var(--gray-medium);
}

.seo-content h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.content-item {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.content-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.content-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.content-item p {
    color: var(--gray-dark);
}

/* Footer Navigation */
.footer-nav {
    margin-top: 2rem;
}

.footer-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 2rem;
}

.footer-nav a {
    color: var(--gray-medium);
    text-decoration: none;
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--light-color);
}

/* Breadcrumb Navigation */
.breadcrumb {
    padding: 1rem 0;
}

.breadcrumb ol {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.breadcrumb li:not(:last-child)::after {
    content: '›';
    margin-left: 0.5rem;
    color: var(--gray-medium);
}

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

.breadcrumb a:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar-ad {
        display: none;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav ul {
        gap: 1rem;
    }
    
    .nav ul li {
        margin: 0;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .preview-container {
        flex-direction: column;
    }
    
    .donation-content {
        flex-direction: column;
        align-items: center;
    }
    
    .qr-code {
        width: 150px;
        height: 205px;
    }
    
    .ad-horizontal .ad-placeholder {
        width: 100%;
        max-width: 728px;
        height: 90px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .tool-card {
        padding: 1.5rem;
    }
    
    .wallet-address-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .copy-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-nav ul {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
}