:root {
    box-sizing: border-box;
}

*,
::before,
::after {
    box-sizing: inherit;
    padding: 0;
    margin: 0;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #183153;
    background-color: #eaeef8;
}

/* Header Styles */
.header {
    background: #ffffff;
    padding: 1rem 0;
    transition: all 0.3s ease;
    /* border-bottom: 1px solid #e5e5e5; */
    z-index: 1000;
}

.header.fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 0.75rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 10px rgba(20, 110, 190, .15);

    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    margin-right: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.header.fixed .logo-icon {
    width: 35px;
    height: 35px;
    font-size: 16px;
}

.logo-text {
    font-family: Fira Code, monospace;
    font-size: 24px;
    color: #333;
    transition: all 0.3s ease;
}

.header.fixed .logo-text {
    font-size: 20px;
}

/* Navigation Buttons */
.nav-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.header.fixed .btn {
    padding: 10px 20px;
    font-size: 13px;
}

.btn-signin {
    background: transparent;
    color: #333;
    font-weight: bold;
    border: 1px solid #ddd;
}

.btn-signin:hover {
    background: #f5f5f5;
    border-color: #ccc;
}

.btn-getstarted {
    background: #146EBE;
    background: linear-gradient(15deg, rgba(20, 110, 190, 1) 0%, rgba(148, 187, 233, 1) 50%);
    background: #1e7fd4;
    font-weight: bold;
    color: white;
    border: 1px solid transparent;
    border-radius: 10em;
}

.btn-getstarted:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 4px;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 2px 0;
    transition: 0.3s;
}




.content-section {
    margin: 0 auto;
    padding: 5rem 2rem;
}


.tabs-container {
    background: transparent;
    overflow: hidden;
}

.tab-panels {
    position: relative;
    min-height: 400px;
}

.tab-panel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.tab-panel.active {
    opacity: 1;
}

.video-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 2em;

}

.video-player {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}



.options-bar {
    display: flex;
    padding: 0em 1em;
    justify-content: center;
}

.options-bar .prompt-area {
    display: flex;
    flex: 0 0 100%;
    justify-content: center;
    align-items: center;
}

.options-bar .prompt-area i {
    width: 40px;
    height: 40px;
    display: flex;
    flex: 0 0 auto;
    font-size: 1.5rem;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: white;
    border: 1px solid #e9ecf2;
    box-shadow: 0px 1px 4px 0px rgba(32, 33, 37, 0.1);
}


.options-bar .prompt {
    display: flex;
    width: 100%;
    max-width: 600px;
    padding: 0.2em;
    align-items: center;
    justify-content: start;
    margin: 0 0.3em;
    background-color: white;
    border-radius: 2.1em;
    border: 1px solid #e9ecf2;
    box-shadow: 0px 1px 4px 0px rgba(32, 33, 37, 0.1);
}

.options-bar .prompt i {
    box-shadow: none;
    border: none;
}

.options-bar .prompt i.git {
    margin-right: -0.3em;
    font-size: 2rem;
}

.options-bar .prompt i.prompt-sym {
    margin-right: -0.4em;
    font-size: 1.2rem;
    padding-left: 0.3em;
    background-color: transparent;
}

.options-bar .prompt .input {
    font-family: Fira Code, monospace;
    display: block;
    min-width: 0%;
    width: 100%;
    padding-left: 0.4em;
    margin-right: 1em;
    font-size: 1.2rem;
    font-style: bold;
    outline: none;
    border: none;
}


.content-section.text-n-img {
    padding-top: 5em;
    padding-bottom: 5em;
}

.content-section.git-in-action {
    background: linear-gradient(90deg, rgb(255, 255, 255) 0%, rgb(116, 171, 214) 100%);
}

.content-section.learn-by-doing {
    background: linear-gradient(90deg, rgb(247 233 208) 0%, rgb(255, 255, 255) 100%);
}

.content-section.why-choose-git {
    background: linear-gradient(90deg, rgb(255, 255, 255) 0%, rgb(254 251 244) 100%);
}

.content-section.cta-section {
    background: #66edff;
    background: linear-gradient(161deg, rgba(102, 237, 255, 0.9) 0%, rgba(148, 187, 233, 1) 100%);
}

.content-section.cta-section .btn-getstarted {
    padding: 1em 5em;
    font-size: 1.2rem;
}

.content-section .inner-wrapper {
    max-width: 1500px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.learn-by-doing .inner-wrapper {
    flex-direction: row-reverse;
}

.content-section .text-content {
    flex: 1;
    padding: 1em;
}

.content-section .text-content p,
.content-section .text-content h1,
.content-section .text-content ul {
    max-width: 500px;
    margin: 0 auto;
}

.content-section.cta-section h1 {
    /* color: white; */
    text-align: center;
}

.content-section.cta-section .action-btn-section {
    text-align: center;
    margin: 2em;
}

.content-section .text-img {
    flex: 1;
    border-radius: 1em;
}

.content-section h1 {
    font-family: 'Merriweather', serif;
    font-size: 4rem;
}

.content-section p {
    font-size: 1.5rem;
}

.content-section img {
    max-width: 800px;
    border-radius: 1em;
}

.content-section.hero-section {
    background-color: #eaeef8;
    padding: 1em 0;
    padding-bottom: 5rem;
    margin: 0 auto;
}

.get-started-section {
    display: none;
    padding-top: 1em;

}

.feature-checks {
    margin-top: 2.5rem;
    display: grid;
    grid-gap: 1rem;
    gap: 1rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.feature-check-item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1rem;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    padding: 1rem;
    background: rgba(20, 110, 190, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(20, 110, 190, 0.1);
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.feature-check-item:hover {
    background: rgba(20, 110, 190, 0.1);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
}

.feature-check-item i {
    font-size: 1.2rem;
    color: #4CAF50;
}

.feature-check-item span {
    font-weight: 500;
    color: #183153;
}


.footer {
    background: linear-gradient(135deg, #183153, #0f1419);
    color: white;
    padding: 2rem 0 2rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: -webkit-gradient(linear, left top, right top, from(transparent), color-stop(rgba(255, 255, 255, 0.2)), to(transparent));
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.footer-content {
    text-align: center;
    margin-bottom: 1rem;
    padding: 0 1rem;
}

.footer-section .logo-icon {
    width: 100px;
    height: 100px;
    padding: 10px;
    background-color: white;
    border-radius: 20px;
    margin: 1em auto;
}


.footer-section h3 {
    margin-bottom: 0.8em;
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
}

.footer-section a {
    color: #ccc;
    display: block;
    margin-bottom: 0.75rem;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    font-size: 1.05rem;
    -webkit-text-decoration: none;
    text-decoration: none;
}

.footer-section a:hover {
    color: white;
    padding-left: 0.5rem;
}

.footer-section p {
    font-size: 1.05rem;
    margin: 0 auto;
    line-height: 1.6;
    max-width: 450px;
    color: #ccc;
}

.footer-content .extra-links {
    display: flex;
    justify-content: center;
    margin-top: 1em;
}

.footer-content .extra-links a {
    color: #ccc;
    display: block;
    margin-bottom: 0.75rem;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    font-size: 0.75rem;
    -webkit-text-decoration: none;
    text-decoration: none;
    margin-right: 1em;
    border-bottom: 2px solid transparent;
}

.footer a:hover {
    border-bottom-width: 2px;
    border-bottom-style: solid;
    border-color: #1e7fd4;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: #ccc;
    padding-left: 1rem;
    padding-right: 1rem;
}

.footer-heart {
    color: red;
}



@media (max-width: 900px) {
    .content-section h1 {
        font-size: 3rem;
    }

    .content-section p {
        font-size: 1.2rem;
    }

    .content-section.cta-section .btn-getstarted {
        padding: 1em 4em;
        font-size: 1rem;
    }

    .footer-section .logo-icon {
        width: 75px;
        height: 75px;
        padding: 10px;

    }

    .options-bar {
        min-height: 60px;
    }
}


/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }

    .logo-text {
        font-size: 20px;
    }

    .header.fixed .logo-text {
        font-size: 18px;
    }

    .logo-icon {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }

    .header.fixed .logo-icon {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }

    .nav-buttons {
        gap: 0.5rem;
    }

    .btn {
        padding: 10px 16px;
        font-size: 13px;
    }

    .header.fixed .btn {
        padding: 8px 14px;
        font-size: 12px;
    }

    .content-section.text-n-img {
        padding-top: 3em;
        padding-bottom: 3em;
    }

    .content-section.git-in-action {
        background: linear-gradient(180deg, rgb(255, 255, 255) 0%, rgb(116, 171, 214) 100%);
    }

    .content-section.learn-by-doing {
        background: linear-gradient(0deg, rgb(247 233 208) 0%, rgb(255, 255, 255) 100%);
    }

    .content-section.why-choose-git {
        background: linear-gradient(180deg, rgb(255, 255, 255) 0%, rgb(254 251 244) 100%);
    }

    .content-section .inner-wrapper {
        flex-direction: column;
    }

    .content-section h1 {
        font-size: 2rem;
    }

    .content-section p {
        font-size: 1rem;
    }

    .content-section img {
        max-width: 500px;
        border-radius: 1em;
    }

    .get-started-section {
        display: block;
    }

    .get-started-section .action-btn-section {
        text-align: center;
        padding: 0.5em 1em;
    }

    .controls-container .action-btn-section {
        display: none;
    }

    .content-section.cta-section .btn-getstarted {
        padding: 0.8em 4em;
        font-size: 0.95rem;
    }

    .content-section.hero-section {
        background-color: #eaeef8;
        padding: 1em 0;
        padding-bottom: 1rem;
        margin: 0 auto;
    }

    .tab-panels {
        min-height: 300px;
    }

    .options-bar {
        padding-top: 0;
        padding-bottom: 0;
        min-height: 60px; 
    }

    .options-bar .prompt-area i {
        width: 30px;
        height: 30px;
        display: flex;
        flex: 0 0 auto;
        justify-content: center;
        align-items: center;
        border-radius: 50%;
        background-color: white;
        border: 1px solid #e9ecf2;
        box-shadow: 0px 1px 4px 0px rgba(32, 33, 37, 0.1);
    }

    .options-bar .prompt i {
        box-shadow: none;
        border: none;
    }

    .options-bar .prompt i.git {
        margin-right: -0.4em;
        font-size: 1.4rem;
    }

    .options-bar .prompt i.prompt-sym {
        margin-right: -0.4em;
        font-size: 1rem;
        padding-left: 0.3em;
        background-color: transparent;
    }

    .options-bar .prompt .input {
        font-family: Fira Code, monospace;
        display: block;
        min-width: 0%;
        width: 100%;
        padding-left: 0.4em;
        margin-right: 1em;
        font-size: 1rem;
        font-style: bold;
        outline: none;
        border: none;
    }

    .feature-checks {
        max-width: 100%;
    }

    .feature-checks {
        margin-left: 0;
    }

    .feature-check-item {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 0.75rem;
    }

    .logo-text {
        font-size: 18px;
    }

    .header.fixed .logo-text {
        font-size: 16px;
    }

    .btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .header.fixed .btn {
        padding: 6px 10px;
        font-size: 11px;
    }

    .nav-buttons {
        gap: 0.25rem;
    }


    .tab-panels {
        min-height: 200px;
    }

    .options-bar {
        min-height: 60px;
    }
}


@keyframes cursorBlink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.cursor {
    width: 2px;
    color: white;
    display: inline-block;
    background-color: #183153;
    animation: cursorBlink 1s infinite;
}