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

html {
    scroll-behavior: smooth;
}

body {
    background: #030503;
    color: #eeeeee;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}


/* HEADER */

.header {
    min-height: 700px;

    display: flex;
    justify-content: center;
    align-items: center;

    text-align: center;

    background:
        radial-gradient(
            circle at 50% 45%,
            #24ff45 0%,
            #0b7a1d 8%,
            #06330e 25%,
            #020502 65%
        );

    position: relative;

    overflow: hidden;
}


.header::before {
    content: "";

    position: absolute;

    width: 700px;
    height: 700px;

    border: 1px solid rgba(100, 255, 120, 0.15);

    border-radius: 50%;

    animation: rotate 20s linear infinite;
}


.header-content {
    position: relative;
    z-index: 2;

    max-width: 900px;

    animation: appear 1s ease;
}


.nvidia-line {
    color: #6dff80;

    font-size: 18px;

    font-weight: bold;

    letter-spacing: 7px;

    margin-bottom: 20px;
}


.header h1 {
    font-size: clamp(65px, 10vw, 130px);

    line-height: 1;

    letter-spacing: -4px;

    text-shadow:
        0 0 10px #ffffff,
        0 0 25px #36ff55,
        0 0 60px #0cff2e;

    margin-bottom: 30px;
}


.hero-subtitle {
    max-width: 700px;

    margin: auto;

    color: #d1d1d1;

    font-size: 20px;
}


.hero-buttons {
    display: flex;

    justify-content: center;

    gap: 15px;

    margin-top: 40px;
}


.green-button,
.dark-button {
    display: inline-block;

    padding: 16px 28px;

    border-radius: 5px;

    text-decoration: none;

    font-weight: bold;

    transition: 0.3s;
}


.green-button {
    background: #6dff80;

    color: #031006;

    box-shadow:
        0 0 20px rgba(70, 255, 90, 0.4);
}


.green-button:hover {
    transform: translateY(-5px);

    box-shadow:
        0 0 40px rgba(70, 255, 90, 0.8);
}


.dark-button {
    border: 1px solid #4aff65;

    color: #72ff83;

    background: rgba(0, 0, 0, 0.5);
}


.dark-button:hover {
    background: #0c3012;

    transform: translateY(-5px);
}



/* NAVBAR */

.navbar {
    position: sticky;

    top: 0;

    z-index: 100;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 20px;

    padding: 0 5%;

    min-height: 65px;

    background: rgba(0, 0, 0, 0.94);

    backdrop-filter: blur(15px);

    border-bottom: 1px solid #25b83e;
}


.nav-logo {
    color: #64ff78;

    font-weight: bold;

    white-space: nowrap;
}


.nav-links {
    display: flex;

    flex-wrap: wrap;

    justify-content: flex-end;
}


.nav-links a {
    color: #aaaaaa;

    text-decoration: none;

    padding: 20px 12px;

    font-size: 14px;

    transition: 0.25s;
}


.nav-links a:hover {
    color: #6dff80;

    background: #0b200e;
}



/* GENERAL */

.section {
    max-width: 1250px;

    margin: auto;

    padding: 110px 35px;
}


.black-section {
    max-width: none;

    padding-left: max(35px, calc((100% - 1180px) / 2));

    padding-right: max(35px, calc((100% - 1180px) / 2));

    background:
        linear-gradient(
            135deg,
            #071008,
            #020302
        );
}


.section-label {
    color: #55ff6d;

    font-size: 13px;

    font-weight: bold;

    letter-spacing: 4px;

    margin-bottom: 12px;
}


.section h2 {
    font-size: clamp(38px, 5vw, 65px);

    line-height: 1.05;

    margin-bottom: 30px;
}


.intro {
    color: #929292;

    max-width: 800px;

    margin-bottom: 50px;

    font-size: 18px;
}



/* HERO */

.hero-section {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 80px;

    align-items: center;
}


.hero-text p {
    color: #a8a8a8;

    font-size: 17px;

    margin-bottom: 20px;
}


.hero-image {
    position: relative;

    display: flex;

    justify-content: center;

    align-items: center;
}


.hero-image img {
    position: relative;

    z-index: 2;

    width: 100%;

    max-height: 520px;

    object-fit: contain;

    filter:
        drop-shadow(0 0 15px #22ff42)
        drop-shadow(0 0 45px #087a19);

    animation: floating 4s ease-in-out infinite;
}


.image-glow {
    position: absolute;

    width: 65%;

    height: 65%;

    background: #26ff48;

    filter: blur(100px);

    opacity: 0.15;
}



/* STATS */

.stats-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 18px;

    margin-bottom: 60px;
}


.stat-card {
    padding: 35px;

    background:
        linear-gradient(
            145deg,
            #101511,
            #070807
        );

    border: 1px solid #183c1e;

    border-radius: 8px;

    transition: 0.3s;
}


.stat-card:hover {
    transform: translateY(-8px);

    border-color: #55ff6d;

    box-shadow:
        0 0 30px rgba(60, 255, 90, 0.15);
}


.stat-card span {
    display: block;

    color: #6dff80;

    font-size: 40px;

    font-weight: bold;
}


.stat-card small {
    color: #55775a;

    font-weight: bold;

    letter-spacing: 2px;
}


.stat-card p {
    color: #888888;

    margin-top: 10px;
}


.spec-list {
    border-top: 1px solid #222222;
}


.spec-list div {
    display: flex;

    justify-content: space-between;

    gap: 30px;

    padding: 18px 10px;

    border-bottom: 1px solid #1d1d1d;
}


.spec-list b {
    color: #dddddd;
}


.spec-list span {
    color: #62ff76;
}



/* POWER */

.power-layout {
    display: grid;

    grid-template-columns: 400px 1fr;

    gap: 70px;

    align-items: center;

    margin-bottom: 70px;
}


.power-big {
    color: #67ff7b;

    font-size: 120px;

    font-weight: bold;

    line-height: 1;

    text-shadow:
        0 0 25px rgba(50, 255, 80, 0.4);
}


.power-big span {
    font-size: 45px;
}


.power-description h3 {
    font-size: 25px;

    color: white;

    margin-bottom: 20px;
}


.power-description p {
    color: #999999;

    margin-bottom: 15px;
}


.energy-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 20px;
}


.energy-card {
    padding: 30px;

    border: 1px solid #1c4021;

    background: #080a08;
}


.energy-card h3 {
    color: white;

    margin-bottom: 15px;
}


.energy-card strong {
    display: block;

    color: #65ff79;

    font-size: 27px;
}


.energy-card p {
    color: #777777;

    margin-top: 10px;
}


.gray-note {
    color: #666666;

    margin-top: 35px;

    font-size: 14px;
}



/* MANUFACTURERS */

.manufacturer-grid {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 18px;
}


.manufacturer-card {
    min-height: 180px;

    padding: 30px;

    background: #080a08;

    border: 1px solid #1c331f;

    transition: 0.3s;
}


.manufacturer-card:hover {
    border-color: #5aff70;

    transform: translateY(-6px);

    box-shadow:
        0 0 25px rgba(70, 255, 90, 0.12);
}


.manufacturer-card h3 {
    color: #68ff7b;

    font-size: 22px;

    margin-bottom: 12px;
}


.manufacturer-card p {
    color: #888888;
}



/* PHOTO */

.photo-section {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 80px;

    align-items: center;
}


.photo-text p {
    color: #999999;

    margin-bottom: 20px;
}


.photo-box img {
    width: 100%;

    max-height: 500px;

    object-fit: contain;

    filter:
        drop-shadow(0 0 20px #18a832);
}



/* TABLE */

.table-container {
    overflow-x: auto;

    border: 1px solid #1b351f;
}


table {
    width: 100%;

    min-width: 950px;

    border-collapse: collapse;
}


th,
td {
    padding: 18px;

    text-align: left;

    border-bottom: 1px solid #202020;
}


th {
    background: #0d1b0f;

    color: #65ff79;

    font-size: 14px;
}


td {
    color: #a7a7a7;
}


tbody tr:hover td {
    background: #0b150d;

    color: #eeeeee;
}


.highlight-row td {
    background: #0d2612;

    color: #6dff80;

    font-weight: bold;
}



/* COMPARISON CARDS */

.comparison-cards {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 18px;

    margin-top: 40px;
}


.compare-card {
    padding: 30px;

    border: 1px solid #222222;

    background: #080908;
}


.compare-card.active {
    border-color: #50ff68;

    background:
        linear-gradient(
            145deg,
            #102713,
            #070907
        );

    box-shadow:
        0 0 30px rgba(50, 255, 70, 0.1);
}


.compare-card span {
    color: #50ff68;

    font-size: 13px;

    font-weight: bold;
}


.compare-card h3 {
    margin: 12px 0;

    color: white;
}


.compare-card p {
    color: #888888;

    font-size: 14px;
}



/* TECHNOLOGY */

.technology-grid {
    display: grid;

    grid-template-columns: repeat(5, 1fr);

    gap: 15px;
}


.technology-card {
    text-align: left;

    padding: 28px;

    min-height: 170px;

    background: #080a08;

    color: white;

    border: 1px solid #1c3b21;

    cursor: pointer;

    transition: 0.3s;
}


.technology-card:hover {
    transform: translateY(-7px);

    border-color: #5dff70;

    background: #0d170e;

    box-shadow:
        0 0 30px rgba(50, 255, 80, 0.18);
}


.technology-card span {
    display: block;

    color: #35683c;

    font-size: 25px;

    font-weight: bold;
}


.technology-card strong {
    display: block;

    color: #65ff79;

    font-size: 20px;

    margin: 8px 0;
}


.technology-card small {
    color: #777777;
}



/* FACTS */

.facts-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 20px;
}


.fact-card {
    position: relative;

    min-height: 220px;

    padding: 30px;

    background: #080908;

    border: 1px solid #202020;

    transition: 0.3s;
}


.fact-card:hover {
    transform: translateY(-6px);

    border-color: #52ff69;
}


.fact-card > span {
    color: #2e6737;

    font-size: 32px;

    font-weight: bold;
}


.fact-card h3 {
    color: #6dff80;

    font-size: 23px;

    margin: 10px 0;
}


.fact-card p {
    color: #898989;
}



/* TODAY */

.today-section {
    text-align: center;
}


.today-content {
    max-width: 850px;

    margin: auto;
}


.today-content p {
    color: #999999;

    font-size: 19px;

    margin-bottom: 18px;
}



/* FINAL */

.final-section {
    text-align: center;
}


.final-box {
    max-width: 850px;

    margin: auto;

    padding: 70px 40px;

    border: 1px solid #2a5c31;

    background:
        radial-gradient(
            circle at center,
            #0d2410,
            #050705
        );

    box-shadow:
        0 0 60px rgba(30, 255, 60, 0.08);
}


.final-box p {
    color: #999999;

    max-width: 700px;

    margin: 15px auto;
}



/* MODAL */

.modal {
    display: none;

    position: fixed;

    inset: 0;

    z-index: 1000;

    align-items: center;

    justify-content: center;

    padding: 25px;

    background: rgba(0, 0, 0, 0.88);

    backdrop-filter: blur(8px);
}


.modal.active {
    display: flex;
}


.modal-window {
    position: relative;

    width: 100%;

    max-width: 700px;

    padding: 55px;

    background:
        linear-gradient(
            145deg,
            #0d160e,
            #050605
        );

    border: 1px solid #5dff70;

    box-shadow:
        0 0 60px rgba(60, 255, 80, 0.2);

    animation: modalOpen 0.3s ease;
}


.modal-label {
    color: #5dff70;

    font-size: 12px;

    font-weight: bold;

    letter-spacing: 4px;

    margin-bottom: 10px;
}


.modal-window h2 {
    color: #6dff80;

    font-size: 40px;

    margin-bottom: 20px;
}


.modal-window p {
    color: #b0b0b0;

    font-size: 17px;
}


.close-button {
    position: absolute;

    right: 20px;

    top: 12px;

    background: none;

    border: none;

    color: #777777;

    font-size: 38px;

    cursor: pointer;
}


.close-button:hover {
    color: #6dff80;
}



/* FOOTER */

footer {
    padding: 60px 20px;

    text-align: center;

    background: #020302;

    border-top: 1px solid #1b5524;
}


footer h3 {
    color: #6dff80;

    font-size: 25px;
}


footer p {
    color: #666666;

    margin-top: 5px;
}



/* ANIMATIONS */

@keyframes appear {

    from {
        opacity: 0;

        transform: translateY(30px);
    }

    to {
        opacity: 1;

        transform: translateY(0);
    }

}


@keyframes floating {

    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }

    100% {
        transform: translateY(0);
    }

}


@keyframes modalOpen {

    from {
        opacity: 0;

        transform: scale(0.92);
    }

    to {
        opacity: 1;

        transform: scale(1);
    }

}


@keyframes rotate {

    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }

}



/* TABLET */

@media (max-width: 1000px) {

    .navbar {
        flex-direction: column;

        padding: 10px;
    }

    .nav-links {
        justify-content: center;
    }

    .hero-section,
    .photo-section {
        grid-template-columns: 1fr;
    }

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

    .manufacturer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .technology-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .facts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .comparison-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .power-layout {
        grid-template-columns: 1fr;
    }

}



/* PHONE */

@media (max-width: 650px) {

    .header {
        min-height: 600px;
    }

    .header h1 {
        letter-spacing: -2px;
    }

    .hero-subtitle {
        font-size: 16px;

        padding: 0 20px;
    }

    .hero-buttons {
        flex-direction: column;

        padding: 0 30px;
    }

    .section {
        padding: 75px 20px;
    }

    .stats-grid,
    .manufacturer-grid,
    .facts-grid,
    .comparison-cards,
    .energy-grid {
        grid-template-columns: 1fr;
    }

    .technology-grid {
        grid-template-columns: 1fr 1fr;
    }

    .power-big {
        font-size: 80px;
    }

    .spec-list div {
        flex-direction: column;

        gap: 5px;
    }

    .modal-window {
        padding: 40px 25px;
    }

    .modal-window h2 {
        font-size: 30px;
    }

}


@media (max-width: 430px) {

    .technology-grid {
        grid-template-columns: 1fr;
    }

    .nav-links a {
        padding: 8px;

        font-size: 12px;
    }

}