* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'riona_sansregular' !important;
}

/* Exclude icon fonts from the universal font-family rule */
.fa, .fas, .far, .fab, .fal, .fad, .fa-solid, .fa-regular, .fa-brands, .fa-light, .fa-duotone,
[class*="fa-"], [class^="fa-"], 
i[class*="fa"], i[class^="fa"],
.icon, .material-icons, .glyphicon {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Pro", "Font Awesome 5 Free", "Font Awesome 5 Pro", "FontAwesome" !important;
}
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}
body {
    font-family: 'riona_sansregular' !important;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #000000 0%, #1f112e 100%);
    overflow: hidden;
}
@media screen and (max-width:767px) {
    .hero {
        padding-top: 40px;
    }
}
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}
.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}
.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}
.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}
.shape-3 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}
.shape-4 {
    width: 100px;
    height: 100px;
    top: 10%;
    right: 30%;
    animation-delay: 1s;
}
@keyframes float {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}
.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-content {
    color: #fff;
}
.hero-badge {
    position: relative;
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    margin-bottom: 30px;
    animation: slideInLeft 1s ease-out;
}
.badge-text {
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 1px;
}
.badge-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4);
    border-radius: 50px;
    z-index: -1;
    animation: glow 2s linear infinite;
    opacity: 0.7;
}
@keyframes glow {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: slideInLeft 1s ease-out 0.2s both;
}
.title-line {
    display: block;
}
.gradient-text {
    background: linear-gradient(
        -225deg,
        rgb(35, 21, 87) 0%,
        rgb(68, 16, 122) 29%,
        rgb(255, 19, 97) 67%,
        rgb(255, 248, 0) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: rgba(0, 0, 0, 0);
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: slideInLeft 1s ease-out 0.4s both;
}
.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    animation: slideInUp 1s ease-out 0.6s both;
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
}
.stat-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.stat-content {
    display: flex;
    flex-direction: column;
}
.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
}
.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}
.hero-cta {
    display: flex;
    gap: 20px;
    animation: slideInUp 1s ease-out 0.8s both;
}
.cta-button {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}
.cta-button.primary {
    background: #5025d1;
    color: #fff;
    box-shadow: var(--shadow-lg);
    font-size: 16px;
    font-weight: 500;
    font-family: 'riona_sansregular' !important;
    line-height: 22px;
    outline: none;
    border-radius: 0px !important;
    padding: 12px 16px;
}
.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}
.cta-button.secondary {
    background: rgba(0, 0, 0, 0);
    color: #fff;
    outline: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 0px !important;
    padding: 12px 16px !important;
}
.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}
.hero-visual {
    animation: slideInRight 1s ease-out 0.4s both;
}
.code-window {
    background: var(--bg-dark);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
}
.window-header {
    background: #1f2937;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}
.window-controls {
    display: flex;
    gap: 8px;
}
.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.control.red {
    background: #ff5f56;
}
.control.yellow {
    background: #ffbd2e;
}
.control.green {
    background: #27ca3f;
}
.window-title {
    color: #9ca3af;
    font-size: 14px;
}
.code-content {
    padding: 30px;
    font-family: 'riona_sansregular' !important;
    font-size: 16px;
    line-height: 1.8;
}
.code-line {
    margin-bottom: 8px;
    position: relative;
}
.code-line.indent {
    padding-left: 20px;
}
.code-keyword {
    color: #c792ea;
}
.code-variable {
    color: #82aaff;
}
.code-property {
    color: #ffcb6b;
}
.code-string {
    color: #c3e88d;
}
.code-cursor {
    display: inline-block;
    width: 2px;
    height: 20px;
    background: #82aaff;
    animation: blink 1s infinite;
}
@keyframes blink {
    0%,
    50% {
        opacity: 1;
    }
    51%,
    100% {
        opacity: 0;
    }
}
.course-info {
    padding: 80px 0;
    background: #000;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.info-card {
    background: rgba(48, 41, 90, 0.3294117647);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}
.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}
.info-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: #fff;
}
.info-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #fff;
    line-height: 28px;
    font-family: 'riona_sansregular' !important;
}
.info-highlight {
    font-size: 1.5rem;
    font-weight: 700;
    color: #5025d1;
    margin-bottom: 5px;
}
.info-detail {
    color: var(--text-secondary);
    font-size: 0.875rem;
    letter-spacing: 0.03em;
    font-family: 'riona_sansregular' !important;
}
.courses {
    padding: 100px 0;
    background: #000;
}
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 6px;
    color: #fff;
    line-height: 52px;
    font-family: 'riona_sansregular' !important;
}
@media screen and (max-width: 1090px) {
    .section-title {
        font-size: 24px;
        line-height: 31px;
    }
}
.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}
.course-card {
    background: rgba(48, 41, 90, 0.3294117647);
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}
.course-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
.course-card:hover::before {
    transform: scaleX(1);
}
.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}
.course-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}
.course-card.featured::before {
    background: var(--gradient-secondary);
}
.course-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}
.course-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
}
.frontend-icon {
    background: var(--gradient-primary);
}
.backend-icon {
    background: var(--gradient-secondary);
}
.fullstack-icon {
    background: var(--gradient-accent);
}
.course-badge {
    background: var(--secondary-color);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}
.featured-badge {
    background: var(--accent-color);
}
.course-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
    line-height: 31px;
    font-family: 'riona_sansregular' !important;
}
@media screen and (max-width: 767px) {
    .course-title {
        font-size: 20px;
        line-height: 28px;
    }
}
.course-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}
.course-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}
.current-price {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    line-height: 36px;
    font-family: 'riona_sansregular' !important;
}
@media screen and (max-width: 767px) {
    .current-price {
        font-size: 24px;
        line-height: 31px;
    }
}
.original-price {
    font-size: 1rem;
    color: var(--text-light);
    text-decoration: line-through;
}
.discount {
    background: var(--accent-color);
    color: #fff;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.course-duration {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.course-highlights {
    margin-bottom: 25px;
}
.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}
.highlight-item i {
    color: var(--accent-color);
    font-size: 14px;
}
.course-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    background: #5025d1;
    color: #fff;
    border: none;
    border-radius: 0px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}
.course-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
.success-stories {
    padding: 100px 0;
    background: #000;
    background: linear-gradient(153deg, rgb(0, 0, 0) 0% 0%, rgb(36, 27, 51) 100%);
}
.testimonials-slider {
    overflow: hidden;
    position: relative;
}
.testimonial-track {
    display: flex;
    gap: 30px;
    animation: scroll 20s linear infinite;
}
@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}
.testimonial-card {
    min-width: 350px;
    background: rgba(48, 41, 90, 0.3294117647);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}
.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}
.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
}
.testimonial-info h4 {
    font-weight: 600;
    color: #fff;
    margin-bottom: 2px;
    font-size: 16px;
    font-family: 'riona_sansregular' !important;
    line-height: 25px;
}
.testimonial-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}
.testimonial-text {
    color: #99a6c1;
    line-height: 25px;
    margin-bottom: 14px;
    font-style: normal;
    font-size: 16px;
    font-weight: 400;
    font-family: 'riona_sansregular' !important;
}
.testimonial-rating {
    display: flex;
    gap: 2px;
}
.testimonial-rating i {
    color: var(--secondary-color);
    font-size: 14px;
}
.benefits {
    padding: 100px 0;
    background: radial-gradient(circle, rgb(0, 0, 0) 0%, rgb(36, 23, 43) 100%);
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.benefit-card {
    text-align: center;
    padding: 30px;
    border-radius: 16px;
    transition: all 0.3s ease;
    opacity: 0;
    background: rgba(39, 35, 67, 0.33);
    transform: translateY(30px);
}
.benefit-card:hover {
    transform: translateY(-5px);
    background: #26123e;
}
.benefit-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: #fff;
}
.benefit-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #fff;
    line-height: 32px;
    font-family: 'riona_sansregular' !important;
    font-weight: 500;
}
.benefit-card p {
    color: #8f8989;
    font-size: 16px;
    line-height: 22px;
    font-weight: 400;
    font-family: 'riona_sansregular' !important;
}
.cta-section {
    padding: 100px 0;
    background: radial-gradient(circle, rgb(0, 0, 0) 0%, rgb(33, 24, 48) 86%);
    text-align: center;
    color: #fff;
}
.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}
.cta-content p {
    font-size: 1.125rem;
    margin-bottom: 30px;
    opacity: 0.9;
}
.cta-button.large {
    padding: 12px 45px;
    font-size: 16px;
    display: inline-block;
    line-height: 23px;
    font-family: 'riona_sansregular' !important;
    font-weight: 500;
}
.cta-note {
    margin-top: 20px;
    font-size: 0.875rem;
    opacity: 0.8;
}
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}
.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}
.modal-content {
    border-radius: 20px;
    max-width: 1000px;
    width: 100%;
    animation: slideInUp 0.3s ease;
    background: radial-gradient(circle, rgb(3, 2, 2) 0%, rgb(23, 16, 28) 86%);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 30px 0;
    margin-bottom: 20px;
}
.modal-current-price {
    font-size: 40px !important;
    font-weight: 700 !important;
    color: #fff !important;
    font-family: 'riona_sansregular' !important;
    line-height: 50px !important;
}
@media screen and (max-width: 767px) {
    .modal-current-price {
        font-size: 30px;
        line-height: 38px;
    }
}
.modal-header h2 {
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    line-height: 42px;
    font-family: 'riona_sansregular' !important;
}
@media screen and (max-width: 767px) {
    .modal-header h2 {
        font-size: 24px;
        line-height: 32px;
    }
}
.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}
.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.modal-body {
    padding: 0 30px 30px;
}
.enrollment-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}
.form-group input,
.form-group select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}
.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    .hero-cta {
        flex-direction: column;
    }
    .courses-grid {
        grid-template-columns: 1fr;
    }
    .course-card.featured {
        transform: none;
    }
    .testimonial-card {
        min-width: 300px;
    }
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 2rem;
    }
    .cta-content h2 {
        font-size: 24px;
        line-height: 32px
    }
    .modal {
        padding: 15px;
    }
    .modal-content {
        width: 100%;
        max-width: 100%;
        margin: 0;
        max-height: 90vh;
        overflow-y: auto;
    }
    .modal-close {
        background: rgba(0, 0, 0, 0.8);
        color: #fff;
        font-size: 22px;
        padding: 10px;
        border-radius: 50%;
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 15;
    }
}
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .modal {
        padding: 10px;
    }
    .modal-content {
        width: 100%;
        max-width: 100%;
        margin: 0;
        border-radius: 10px;
        max-height: 95vh;
        overflow-y: auto;
    }
    .modal-header {
        padding: 15px 20px 10px;
        position: sticky;
        top: 0;
        background: radial-gradient(circle, rgb(3, 2, 2) 0%, rgb(23, 16, 28) 86%);
        z-index: 10;
    }
    .modal-body {
        padding: 0 20px 20px;
    }
    .modal-close {
        position: sticky;
        top: 10px;
        right: 10px;
        z-index: 20;
        background: rgba(0, 0, 0, 0.7);
        color: #fff;
        font-size: 20px;
        padding: 8px;
        border-radius: 50%;
        min-width: 40px;
        min-height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}
[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Navigation Styles */
@media (max-width: 767px) {
    .nav {
        position: fixed;
        top: 0;
        left: 0;
        background: #000;
        height: 100vh;
        width: 250px;
        padding: 60px 20px;
        transform: translateX(-100%);
        box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease-in-out;
        z-index: 999;
    }

    .nav.is-active {
        transform: translateX(0);
    }

    .nav-menu {
        flex-direction: column;
        padding: 0;
        margin: 0;
        list-style: none;
    }

    .menu-item {
        margin: 15px 0;
        border-bottom: 1px solid #4f4747;
        padding-bottom: 2px;
    }

    .menu-item a {
        text-decoration: none;
        color: #fff !important;
        font-size: 18px;
        transition: color 0.2s;
        display: block;
        width: 100%;
    }

    .menu-item a:hover {
        color: #5025d1 !important;
    }
}

/* Body scroll lock when mobile menu is open */
.no-scroll {
    height: 100%;
    width: 100%;
    overflow: hidden;
}