style.css

/* =====================================================
   TECH EDUCAÇÃO — DESIGN SYSTEM
===================================================== */

:root {

    --bg: #02050c;
    --bg-2: #050a14;
    --bg-soft: #07111f;
    --bg-card: #091827;

    --blue-1: #0066ff;
    --blue-2: #008cff;
    --blue-3: #20b8ff;
    --blue-4: #79dcff;

    --cyan: #39d5ff;

    --text: #f5faff;
    --text-soft: #c1d2e4;
    --text-muted: #71869d;

    --border:
        rgba(81, 163, 226, 0.18);

    --border-bright:
        rgba(51, 190, 255, 0.55);

    --glass:
        rgba(7, 18, 31, 0.72);

    --shadow:
        0 25px 80px rgba(0, 0, 0, 0.42);

    --font-size: 18px;
    --line-height: 1.6;

    --radius: 18px;

}


/* =====================================================
   RESET
===================================================== */

* {
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
}


body {

    margin: 0;

    min-height: 100vh;

    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Arial,
        sans-serif;

    font-size:
        var(--font-size);

    line-height:
        var(--line-height);

    color:
        var(--text);

    background:
        #02050c;

    overflow-x: hidden;

    isolation: isolate;
}


button,
a {
    font: inherit;
}


button {
    cursor: pointer;
}


.container {

    width:
        min(1280px, calc(100% - 48px));

    margin:
        0 auto;

}


/* =====================================================
   SELEÇÃO
===================================================== */

::selection {

    background:
        #11aaff;

    color:
        white;

}


/* =====================================================
   FUNDO
===================================================== */

.background-effects {

    position:
        fixed;

    inset:
        0;

    z-index:
        -5;

    overflow:
        hidden;

    pointer-events:
        none;

    background:

        radial-gradient(
            circle at 15% 5%,
            rgba(0, 112, 255, 0.10),
            transparent 28%
        ),

        radial-gradient(
            circle at 85% 30%,
            rgba(0, 208, 255, 0.08),
            transparent 25%
        ),

        linear-gradient(
            180deg,
            #030814,
            #02050c
        );

}


.background-effects::before {

    content:
        "";

    position:
        absolute;

    inset:
        0;

    opacity:
        .2;

    background-image:

        linear-gradient(
            rgba(71, 162, 224, .08) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(71, 162, 224, .08) 1px,
            transparent 1px
        );

    background-size:
        60px 60px;

    mask-image:
        linear-gradient(
            to bottom,
            black,
            transparent 75%
        );

}


.bg-orb {

    position:
        absolute;

    border-radius:
        50%;

    filter:
        blur(80px);

    opacity:
        .3;

}


.bg-orb-1 {

    width:
        500px;

    height:
        500px;

    top:
        -200px;

    left:
        -180px;

    background:
        #006cff;

}


.bg-orb-2 {

    width:
        450px;

    height:
        450px;

    right:
        -200px;

    top:
        35%;

    background:
        #00bfff;

}


.bg-orb-3 {

    width:
        350px;

    height:
        350px;

    left:
        30%;

    bottom:
        -220px;

    background:
        #004cff;

}


.particles span {

    position:
        absolute;

    width:
        3px;

    height:
        3px;

    border-radius:
        50%;

    background:
        #5ed7ff;

    box-shadow:
        0 0 12px #31baff;

    opacity:
        .5;

    animation:
        particleFloat 8s infinite ease-in-out;

}


.particles span:nth-child(1) {
    left: 8%;
    top: 22%;
}

.particles span:nth-child(2) {
    left: 18%;
    top: 70%;
    animation-delay: -2s;
}

.particles span:nth-child(3) {
    left: 31%;
    top: 35%;
    animation-delay: -4s;
}

.particles span:nth-child(4) {
    left: 44%;
    top: 80%;
    animation-delay: -1s;
}

.particles span:nth-child(5) {
    left: 57%;
    top: 20%;
    animation-delay: -5s;
}

.particles span:nth-child(6) {
    left: 67%;
    top: 63%;
    animation-delay: -3s;
}

.particles span:nth-child(7) {
    left: 76%;
    top: 32%;
    animation-delay: -6s;
}

.particles span:nth-child(8) {
    left: 86%;
    top: 75%;
    animation-delay: -2s;
}

.particles span:nth-child(9) {
    left: 93%;
    top: 16%;
    animation-delay: -4s;
}

.particles span:nth-child(10) {
    left: 50%;
    top: 50%;
    animation-delay: -7s;
}


@keyframes particleFloat {

    0%,
    100% {
        transform:
            translateY(0)
            scale(1);
        opacity: .2;
    }

    50% {
        transform:
            translateY(-25px)
            scale(1.7);
        opacity: .8;
    }

}


/* =====================================================
   SCROLLBAR
===================================================== */

::-webkit-scrollbar {
    width: 10px;
}


::-webkit-scrollbar-track {
    background:
        #01040a;
}


::-webkit-scrollbar-thumb {

    background:
        linear-gradient(
            #075ca8,
            #20baff
        );

    border-radius:
        20px;

}


::-webkit-scrollbar-thumb:hover {
    background:
        #63d7ff;
}


/* =====================================================
   ACESSIBILIDADE
===================================================== */

.skip-link {

    position:
        fixed;

    top:
        -100px;

    left:
        20px;

    z-index:
        99999;

    padding:
        13px 20px;

    color:
        white;

    background:
        #000;

    border:
        2px solid #35b5ff;

    border-radius:
        10px;

    font-weight:
        800;

}


.skip-link:focus {
    top:
        20px;
}


:focus-visible {

    outline:
        3px solid #35c8ff;

    outline-offset:
        4px;

}


/* =====================================================
   HERO
===================================================== */

.hero {

    position:
        relative;

    min-height:
        720px;

    display:
        flex;

    align-items:
        center;

    overflow:
        hidden;

    background:

        radial-gradient(
            circle at 70% 45%,
            rgba(0, 145, 255, .25),
            transparent 25%
        ),

        linear-gradient(
            135deg,
            #020711 0%,
            #03152b 40%,
            #053b6a 75%,
            #006cae 100%
        );

    border-bottom:
        1px solid rgba(65, 186, 255, .25);

}


.hero::before {

    content:
        "";

    position:
        absolute;

    inset:
        0;

    background:
        linear-gradient(
            90deg,
            rgba(0,0,0,.55),
            transparent 65%
        );

    pointer-events:
        none;

}


.hero-grid {

    position:
        absolute;

    inset:
        0;

    opacity:
        .23;

    background-image:

        linear-gradient(
            rgba(255,255,255,.06) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(255,255,255,.06) 1px,
            transparent 1px
        );

    background-size:
        55px 55px;

    mask-image:
        linear-gradient(
            to bottom,
            black 0%,
            black 50%,
            transparent 100%
        );

}


.hero-noise {

    position:
        absolute;

    inset:
        0;

    opacity:
        .05;

    background-image:
        url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");

}


.hero-glow {

    position:
        absolute;

    border-radius:
        50%;

    filter:
        blur(5px);

    pointer-events:
        none;

}


.hero-glow-1 {

    width:
        650px;

    height:
        650px;

    right:
        -180px;

    top:
        -280px;

    background:
        radial-gradient(
            circle,
            rgba(67, 207, 255, .34),
            transparent 68%
        );

}


.hero-glow-2 {

    width:
        500px;

    height:
        500px;

    left:
        -250px;

    bottom:
        -350px;

    background:
        radial-gradient(
            circle,
            rgba(0, 102, 255, .32),
            transparent 68%
        );

}


.hero-ring {

    position:
        absolute;

    border:
        1px solid rgba(99, 207, 255, .15);

    border-radius:
        50%;

    pointer-events:
        none;

    animation:
        orbitSpin 20s linear infinite;

}


.hero-ring-1 {

    width:
        600px;

    height:
        600px;

    right:
        -250px;

    top:
        -100px;

}


.hero-ring-2 {

    width:
        850px;

    height:
        850px;

    right:
        -380px;

    top:
        -225px;

    animation-direction:
        reverse;

    animation-duration:
        30s;

}


@keyframes orbitSpin {
    to {
        transform:
            rotate(360deg);
    }
}


.hero-content {

    position:
        relative;

    z-index:
        2;

    width:
        100%;

    padding:
        100px 0;

}


.hero-badge {

    display:
        inline-flex;

    align-items:
        center;

    gap:
        9px;

    padding:
        8px 14px;

    margin-bottom:
        30px;

    color:
        #c4eeff;

    background:
        rgba(255,255,255,.06);

    border:
        1px solid rgba(255,255,255,.18);

    border-radius:
        50px;

    font-size:
        .68rem;

    font-weight:
        900;

    letter-spacing:
        1.7px;

    backdrop-filter:
        blur(18px);

    box-shadow:
        0 10px 40px rgba(0,0,0,.15);

}


.hero-badge i {

    width:
        3px;

    height:
        3px;

    border-radius:
        50%;

    background:
        #52cfff;

}


.status-dot {

    width:
        7px;

    height:
        7px;

    border-radius:
        50%;

    background:
        #3ee1a5;

    box-shadow:
        0 0 15px #3ee1a5;

    animation:
        statusPulse 2s infinite;

}


@keyframes statusPulse {

    0%,
    100% {
        box-shadow:
            0 0 8px #3ee1a5;
    }

    50% {
        box-shadow:
            0 0 22px #3ee1a5;
    }

}


.hero-layout {

    display:
        grid;

    grid-template-columns:
        minmax(0, 1.2fr)
        minmax(350px, .8fr);

    align-items:
        center;

    gap:
        50px;

}


.hero-eyebrow {

    display:
        flex;

    align-items:
        center;

    gap:
        12px;

    margin-bottom:
        18px;

    color:
        #63cfff;

    font-size:
        .7rem;

    font-weight:
        900;

    letter-spacing:
        2.5px;

}


.eyebrow-line {

    width:
        35px;

    height:
        2px;

    background:
        #28baff;

    box-shadow:
        0 0 12px #28baff;

}


.hero h1 {

    max-width:
        850px;

    margin:
        0;

    font-size:
        clamp(3.5rem, 7vw, 7.5rem);

    line-height:
        .91;

    letter-spacing:
        -6px;

    font-weight:
        950;

}


.hero h1 span {

    display:
        block;

    background:
        linear-gradient(
            90deg,
            #ffffff 0%,
            #a9ecff 40%,
            #3cc7ff 100%
        );

    -webkit-background-clip:
        text;

    background-clip:
        text;

    color:
        transparent;

    filter:
        drop-shadow(
            0 0 30px rgba(38, 190, 255, .2)
        );

}


.hero-description {

    max-width:
        700px;

    margin:
        32px 0 35px;

    color:
        #c7dded;

    font-size:
        1.1rem;

    line-height:
        1.8;

}


.hero-actions {

    display:
        flex;

    flex-wrap:
        wrap;

    gap:
        12px;

}


.hero-primary,
.hero-secondary {

    min-height:
        52px;

    padding:
        0 22px;

    display:
        inline-flex;

    align-items:
        center;

    justify-content:
        center;

    gap:
        14px;

    border-radius:
        11px;

    font-weight:
        800;

    transition:
        .25s ease;

}


.hero-primary {

    color:
        white;

    border:
        1px solid rgba(101, 215, 255, .6);

    background:
        linear-gradient(
            135deg,
            #0673d6,
            #00a8ee
        );

    box-shadow:
        0 12px 35px rgba(0, 137, 230, .3);

}


.hero-primary b {

    font-size:
        1.3rem;

    transition:
        .25s ease;

}


.hero-primary:hover {

    transform:
        translateY(-3px);

    box-shadow:
        0 18px 45px rgba(0, 153, 255, .4);

}


.hero-primary:hover b {
    transform:
        translateX(4px);
}


.hero-secondary {

    color:
        #d5eaf8;

    background:
        rgba(255,255,255,.05);

    border:
        1px solid rgba(255,255,255,.16);

    backdrop-filter:
        blur(12px);

}


.hero-secondary:hover {

    color:
        white;

    transform:
        translateY(-3px);

    border-color:
        rgba(71, 201, 255, .5);

    background:
        rgba(33, 152, 219, .14);

}


.play-icon {

    width:
        27px;

    height:
        27px;

    display:
        grid;

    place-items:
        center;

    padding-left:
        2px;

    border-radius:
        50%;

    color:
        #5bd0ff;

    background:
        rgba(47, 190, 255, .1);

    border:
        1px solid rgba(75, 201, 255, .25);

    font-size:
        .55rem;

}


.hero-info {

    display:
        flex;

    align-items:
        center;

    gap:
        25px;

    margin-top:
        50px;

}


.hero-info-item {

    display:
        flex;

    flex-direction:
        column;

}


.hero-info-item strong {

    font-size:
        1.6rem;

    line-height:
        1;

    color:
        white;

}


.hero-info-item span {

    margin-top:
        5px;

    color:
        #8eafc7;

    font-size:
        .65rem;

    text-transform:
        uppercase;

    letter-spacing:
        1.5px;

}


.hero-divider {

    width:
        1px;

    height:
        38px;

    background:
        rgba(255,255,255,.18);

}


/* =====================================================
   HERO VISUAL
===================================================== */

.hero-visual {

    position:
        relative;

    width:
        min(480px, 100%);

    height:
        480px;

    margin:
        auto;

}


.visual-orbit {

    position:
        absolute;

    left:
        50%;

    top:
        50%;

    border:
        1px solid rgba(82, 202, 255, .22);

    border-radius:
        50%;

    transform:
        translate(-50%, -50%);

}


.orbit-1 {

    width:
        300px;

    height:
        300px;

    animation:
        visualSpin 15s linear infinite;

}


.orbit-2 {

    width:
        390px;

    height:
        170px;

    transform:
        translate(-50%, -50%)
        rotate(45deg);

    animation:
        visualSpin 20s linear infinite reverse;

}


.orbit-3 {

    width:
        440px;

    height:
        250px;

    transform:
        translate(-50%, -50%)
        rotate(-35deg);

    animation:
        visualSpin 24s linear infinite;

}


@keyframes visualSpin {
    to {
        transform:
            translate(-50%, -50%)
            rotate(360deg);
    }
}


.visual-core {

    position:
        absolute;

    left:
        50%;

    top:
        50%;

    width:
        145px;

    height:
        145px;

    display:
        grid;

    place-items:
        center;

    transform:
        translate(-50%, -50%);

    border-radius:
        50%;

    background:
        radial-gradient(
            circle,
            rgba(44, 202, 255, .9),
            rgba(0, 101, 193, .4) 45%,
            transparent 70%
        );

    box-shadow:
        0 0 50px rgba(30, 186, 255, .5),
        0 0 100px rgba(0, 113, 255, .2);

    animation:
        corePulse 3s ease-in-out infinite;

}


@keyframes corePulse {

    0%,
    100% {
        transform:
            translate(-50%, -50%)
            scale(1);
    }

    50% {
        transform:
            translate(-50%, -50%)
            scale(1.07);
    }

}


.core-inner {

    width:
        80px;

    height:
        80px;

    display:
        grid;

    place-items:
        center;

    border:
        1px solid rgba(158, 235, 255, .7);

    border-radius:
        50%;

    background:
        radial-gradient(
            circle at 35% 30%,
            #6ee3ff,
            #0877cb 70%
        );

    box-shadow:
        inset 0 0 25px rgba(255,255,255,.2),
        0 0 35px rgba(34, 196, 255, .5);

}


.core-symbol {

    color:
        white;

    font-size:
        2.1rem;

    font-weight:
        950;

    text-shadow:
        0 0 20px white;

}


.core-ring {

    position:
        absolute;

    width:
        170px;

    height:
        170px;

    border:
        1px solid rgba(91, 213, 255, .35);

    border-radius:
        50%;

    animation:
        coreRing 4s linear infinite;

}


.core-ring-2 {

    width:
        210px;

    height:
        210px;

    border-style:
        dashed;

    opacity:
        .45;

    animation-duration:
        7s;

    animation-direction:
        reverse;

}


@keyframes coreRing {
    to {
        transform:
            rotate(360deg);
    }
}


.floating-card {

    position:
        absolute;

    display:
        flex;

    align-items:
        center;

    gap:
        10px;

    min-width:
        150px;

    padding:
        11px 14px;

    color:
        white;

    background:
        rgba(5, 21, 37, .72);

    border:
        1px solid rgba(93, 206, 255, .2);

    border-radius:
        12px;

    box-shadow:
        0 18px 45px rgba(0,0,0,.25);

    backdrop-filter:
        blur(18px);

    animation:
        floatingCard 5s ease-in-out infinite;

}


.floating-card > span {

    width:
        34px;

    height:
        34px;

    display:
        grid;

    place-items:
        center;

    color:
        #58d3ff;

    background:
        rgba(26, 173, 239, .1);

    border:
        1px solid rgba(63, 192, 244, .2);

    border-radius:
        8px;

}


.floating-card div {

    display:
        flex;

    flex-direction:
        column;

}


.floating-card strong {

    font-size:
        .75rem;

}


.floating-card small {

    color:
        #779bb4;

    font-size:
        .6rem;

}


.floating-card-1 {

    top:
        65px;

    left:
        -15px;

}


.floating-card-2 {

    right:
        -5px;

    top:
        155px;

    animation-delay:
        -1.5s;

}


.floating-card-3 {

    bottom:
        70px;

    left:
        20px;

    animation-delay:
        -3s;

}


@keyframes floatingCard {

    0%,
    100% {
        transform:
            translateY(0);
    }

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

}


.hero-scroll {

    position:
        absolute;

    bottom:
        25px;

    left:
        50%;

    transform:
        translateX(-50%);

    display:
        flex;

    align-items:
        center;

    gap:
        10px;

    color:
        rgba(210,240,255,.5);

    font-size:
        .55rem;

    letter-spacing:
        2px;

}


.hero-scroll span {

    width:
        18px;

    height:
        28px;

    border:
        1px solid rgba(145, 219, 255, .35);

    border-radius:
        20px;

    position:
        relative;

}


.hero-scroll span::after {

    content:
        "";

    position:
        absolute;

    width:
        3px;

    height:
        6px;

    left:
        50%;

    top:
        6px;

    transform:
        translateX(-50%);

    border-radius:
        10px;

    background:
        #54d0ff;

    animation:
        scrollDot 1.8s infinite;

}


@keyframes scrollDot {

    0% {
        opacity: 0;
        transform:
            translate(-50%, 0);
    }

    40% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform:
            translate(-50%, 10px);
    }

}


/* =====================================================
   ACESSIBILIDADE
===================================================== */

.accessibility-panel {

    position:
        relative;

    z-index:
        20;

    background:
        rgba(2, 7, 14, .86);

    border-bottom:
        1px solid var(--border);

    backdrop-filter:
        blur(22px);

}


.accessibility-container {

    display:
        flex;

    align-items:
        center;

    gap:
        25px;

    padding:
        13px 0;

}


.accessibility-title {

    display:
        flex;

    align-items:
        center;

    gap:
        11px;

    min-width:
        180px;

}


.accessibility-icon {

    width:
        39px;

    height:
        39px;

    display:
        grid;

    place-items:
        center;

    color:
        #9be5ff;

    background:
        linear-gradient(
            135deg,
            #075ca8,
            #159fe9
        );

    border:
        1px solid rgba(90, 211, 255, .35);

    border-radius:
        11px;

    box-shadow:
        0 8px 25px rgba(0, 121, 214, .2);

}


.accessibility-title div {

    display:
        flex;

    flex-direction:
        column;

}


.accessibility-title strong {

    font-size:
        .78rem;

}


.accessibility-title small {

    color:
        var(--text-muted);

    font-size:
        .6rem;

}


.accessibility-buttons {

    display:
        flex;

    flex-wrap:
        wrap;

    gap:
        7px;

}


.accessibility-panel button {

    display:
        flex;

    align-items:
        center;

    gap:
        7px;

    min-height:
        38px;

    padding:
        7px 11px;

    color:
        #bfd7e9;

    background:
        rgba(9, 25, 42, .85);

    border:
        1px solid var(--border);

    border-radius:
        8px;

    font-size:
        .7rem;

    transition:
        .2s ease;

}


.accessibility-panel button span {

    color:
        #55c8ff;

    font-weight:
        900;

}


.accessibility-panel button:hover {

    transform:
        translateY(-2px);

    color:
        white;

    border-color:
        var(--border-bright);

    background:
        rgba(13, 47, 74, .9);

    box-shadow:
        0 8px 25px rgba(0, 129, 214, .12);

}


.voice-button {

    background:
        linear-gradient(
            135deg,
            #075ca8,
            #087fd4
        ) !important;

    border-color:
        #299fea !important;

    color:
        white !important;

}


.stop-button {

    background:
        rgba(69, 20, 32, .55) !important;

    border-color:
        rgba(214, 72, 103, .4) !important;

    color:
        #ffc5d2 !important;

}


/* =====================================================
   NAV
===================================================== */

nav {

    position:
        sticky;

    top:
        0;

    z-index:
        15;

    background:
        rgba(2, 7, 14, .76);

    border-bottom:
        1px solid var(--border);

    backdrop-filter:
        blur(24px);

}


.nav-container {

    min-height:
        78px;

    display:
        flex;

    align-items:
        center;

    gap:
        30px;

}


.nav-brand {

    display:
        flex;

    align-items:
        center;

    gap:
        10px;

    min-width:
        165px;

    text-decoration:
        none;

    color:
        white;

}


.nav-logo {

    width:
        42px;

    height:
        42px;

    display:
        grid;

    place-items:
        center;

    border-radius:
        11px;

    background:
        linear-gradient(
            135deg,
            #0762bb,
            #28b8ff
        );

    color:
        white;

    font-size:
        1.35rem;

    font-weight:
        950;

    box-shadow:
        0 0 30px rgba(22, 156, 255, .28);

}


.nav-brand div {

    display:
        flex;

    flex-direction:
        column;

}


.nav-brand strong {

    font-size:
        .82rem;

    letter-spacing:
        2.5px;

}


.nav-brand small {

    color:
        #58738b;

    font-size:
        .5rem;

    letter-spacing:
        1.5px;

}


.nav-buttons {

    display:
        flex;

    flex:
        1;

    gap:
        5px;

}


.nav-button {

    flex:
        1;

    min-height:
        47px;

    display:
        flex;

    align-items:
        center;

    justify-content:
        center;

    gap:
        8px;

    color:
        #8ea6bb;

    background:
        transparent;

    border:
        1px solid transparent;

    border-radius:
        9px;

    font-size:
        .76rem;

    transition:
        .25s ease;

}


.nav-number {

    color:
        #42647e;

    font-size:
        .58rem;

    font-weight:
        900;

}


.nav-button:hover {

    color:
        white;

    background:
        rgba(25, 135, 205, .1);

    border-color:
        var(--border);

}


.nav-button.active {

    color:
        white;

    background:
        linear-gradient(
            135deg,
            rgba(0, 111, 211, .85),
            rgba(0, 157, 235, .55)
        );

    border-color:
        rgba(65, 190, 255, .45);

    box-shadow:
        0 8px 30px rgba(0, 115, 210, .16),
        inset 0 1px 0 rgba(255,255,255,.08);

}


.nav-button.active .nav-number {
    color:
        #b8e9ff;
}


.nav-status {

    display:
        flex;

    align-items:
        center;

    gap:
        7px;

    color:
        #62a1bf;

    font-size:
        .55rem;

    font-weight:
        900;

    letter-spacing:
        1px;

}


.nav-status span {

    width:
        6px;

    height:
        6px;

    border-radius:
        50%;

    background:
        #39d79e;

    box-shadow:
        0 0 10px #39d79e;

}


/* =====================================================
   MAIN
===================================================== */

main {

    position:
        relative;

    padding:
        100px 0 130px;

}


.content-section {

    display:
        none;

    animation:
        sectionIn .5s cubic-bezier(.2,.8,.2,1);

}


.content-section.active {
    display:
        block;
}


@keyframes sectionIn {

    from {
        opacity: 0;
        transform:
            translateY(18px);
    }

    to {
        opacity: 1;
        transform:
            translateY(0);
    }

}


/* =====================================================
   SECTION HEADER
===================================================== */

.section-header {

    margin-bottom:
        40px;

}


.section-header-top {

    display:
        flex;

    align-items:
        center;

    justify-content:
        space-between;

}


.section-tag {

    color:
        #38baff;

    font-size:
        .66rem;

    font-weight:
        950;

    letter-spacing:
        2.5px;

}


.section-counter {

    color:
        rgba(92, 188, 235, .12);

    font-size:
        5rem;

    line-height:
        .7;

    font-weight:
        950;

    letter-spacing:
        -5px;

}


.section-header h2 {

    max-width:
        900px;

    margin:
        5px 0 0;

    color:
        white;

    font-size:
        clamp(2.7rem, 5vw, 5rem);

    line-height:
        1;

    letter-spacing:
        -3px;

}


.section-line {

    width:
        min(650px, 100%);

    height:
        2px;

    margin:
        22px 0;

    background:
        linear-gradient(
            90deg,
            #078be5,
            #22c7ff 35%,
            transparent
        );

    box-shadow:
        0 0 20px rgba(0, 174, 255, .15);

}


.section-description {

    max-width:
        720px;

    margin:
        0;

    color:
        var(--text-muted);

    font-size:
        .98rem;

}


/* =====================================================
   INTRO BOX
===================================================== */

.intro-box {

    position:
        relative;

    overflow:
        hidden;

    display:
        flex;

    gap:
        25px;

    padding:
        32px;

    margin:
        30px 0;

    background:
        linear-gradient(
            135deg,
            rgba(12, 47, 77, .78),
            rgba(5, 20, 35, .72)
        );

    border:
        1px solid rgba(73, 165, 224, .2);

    border-left:
        3px solid #20aaf2;

    border-radius:
        var(--radius);

    box-shadow:
        var(--shadow);

    backdrop-filter:
        blur(18px);

    opacity:
        0;

    transform:
        translateY(18px);

    transition:
        opacity .7s ease,
        transform .7s ease;

}


.intro-box.visible {

    opacity:
        1;

    transform:
        translateY(0);

}


.intro-box::after {

    content:
        "";

    position:
        absolute;

    width:
        280px;

    height:
        280px;

    right:
        -150px;

    top:
        -180px;

    border-radius:
        50%;

    background:
        radial-gradient(
            circle,
            rgba(0, 175, 255, .15),
            transparent 70%
        );

}


.intro-icon {

    flex:
        0 0 56px;

    width:
        56px;

    height:
        56px;

    display:
        grid;

    place-items:
        center;

    color:
        #7de0ff;

    background:
        rgba(0, 156, 235, .1);

    border:
        1px solid rgba(58, 187, 242, .3);

    border-radius:
        14px;

    font-size:
        1.45rem;

    box-shadow:
        0 0 30px rgba(0, 158, 242, .1);

}


.mini-label {

    margin-bottom:
        7px;

    color:
        #3cbcff;

    font-size:
        .58rem;

    font-weight:
        950;

    letter-spacing:
        2px;

}


.intro-box p {

    margin-top:
        0;

    color:
        #bfd2e3;

}


.intro-box p:last-child {
    margin-bottom:
        0;
}


strong {
    color:
        white;
}


/* =====================================================
   CARDS
===================================================== */

.cards {

    display:
        grid;

    grid-template-columns:
        repeat(auto-fit, minmax(250px, 1fr));

    gap:
        18px;

    margin:
        38px 0;

}


.card {

    position:
        relative;

    overflow:
        hidden;

    min-height:
        280px;

    padding:
        29px;

    background:
        linear-gradient(
            145deg,
            rgba(11, 38, 62, .9),
            rgba(5, 18, 31, .9)
        );

    border:
        1px solid rgba(74, 160, 218, .17);

    border-radius:
        17px;

    box-shadow:
        0 18px 50px rgba(0,0,0,.24);

    opacity:
        0;

    transform:
        translateY(22px);

    transition:
        opacity .7s ease,
        transform .7s ease,
        border-color .3s ease,
        box-shadow .3s ease;

    transform-style:
        preserve-3d;

}


.card.visible {

    opacity:
        1;

    transform:
        translateY(0);

}


.card:nth-child(2) {
    transition-delay:
        .08s;
}


.card:nth-child(3) {
    transition-delay:
        .16s;
}


.card:nth-child(4) {
    transition-delay:
        .24s;
}


.card::before {

    content:
        "";

    position:
        absolute;

    top:
        0;

    left:
        0;

    right:
        0;

    height:
        2px;

    background:
        linear-gradient(
            90deg,
            #006bd0,
            #35c5ff,
            transparent
        );

}


.card::after {

    content:
        "";

    position:
        absolute;

    width:
        230px;

    height:
        230px;

    right:
        -140px;

    bottom:
        -150px;

    border-radius:
        50%;

    background:
        radial-gradient(
            circle,
            rgba(0, 158, 255, .2),
            transparent 70%
        );

    transition:
        .4s ease;

}


.card:hover {

    border-color:
        rgba(54, 188, 247, .48);

    box-shadow:
        0 25px 70px rgba(0, 104, 200, .2),
        inset 0 1px 0 rgba(255,255,255,.04);

}


.card:hover::after {

    transform:
        scale(1.35);

    opacity:
        1.4;

}


.card-top {

    position:
        relative;

    z-index:
        2;

    display:
        flex;

    justify-content:
        space-between;

    align-items:
        center;

}


.card-number {

    color:
        #3c9bd1;

    font-size:
        .62rem;

    font-weight:
        950;

    letter-spacing:
        2px;

}


.card-icon {

    width:
        43px;

    height:
        43px;

    display:
        grid;

    place-items:
        center;

    color:
        #62d0ff;

    background:
        rgba(0, 145, 225, .1);

    border:
        1px solid rgba(53, 178, 235, .22);

    border-radius:
        11px;

    font-size:
        1rem;

    font-weight:
        900;

}


.card h3 {

    position:
        relative;

    z-index:
        2;

    margin:
        25px 0 11px;

    color:
        #ecf8ff;

    font-size:
        1.35rem;

}


.card p {

    position:
        relative;

    z-index:
        2;

    color:
        #9fb7ca;

    font-size:
        .9rem;

    line-height:
        1.75;

}


.card-line {

    position:
        absolute;

    left:
        29px;

    bottom:
        24px;

    width:
        38px;

    height:
        2px;

    background:
        #168fe9;

    box-shadow:
        0 0 12px #168fe9;

}


.card-glow {

    position:
        absolute;

    width:
        100px;

    height:
        100px;

    right:
        -30px;

    top:
        -30px;

    border-radius:
        50%;

    background:
        radial-gradient(
            circle,
            rgba(0, 190, 255, .18),
            transparent 70%
        );

}


/* =====================================================
   CONTENT AREA
===================================================== */

.content-area {

    padding:
        36px;

    margin-top:
        38px;

    background:
        linear-gradient(
            145deg,
            rgba(9, 31, 51, .86),
            rgba(4, 16, 28, .86)
        );

    border:
        1px solid rgba(73, 159, 218, .17);

    border-radius:
        var(--radius);

    box-shadow:
        var(--shadow);

    backdrop-filter:
        blur(16px);

    opacity:
        0;

    transform:
        translateY(20px);

    transition:
        opacity .7s ease,
        transform .7s ease;

}


.content-area.visible {

    opacity:
        1;

    transform:
        translateY(0);

}


.content-label {

    margin-bottom:
        8px;

    color:
        #3bbcff;

    font-size:
        .6rem;

    font-weight:
        950;

    letter-spacing:
        2.5px;

}


.content-area h3 {

    margin:
        0 0 20px;

    color:
        #67d0ff;

    font-size:
        1.55rem;

}


.content-area p {

    color:
        #a9bfd1;

}


/* =====================================================
   FAKE NEWS
===================================================== */

.fake-news {

    position:
        relative;

    overflow:
        hidden;

    padding:
        34px;

    margin:
        30px 0;

    background:
        linear-gradient(
            145deg,
            rgba(16, 42, 66, .92),
            rgba(6, 21, 35, .9)
        );

    border:
        1px solid rgba(46, 156, 221, .25);

    border-left:
        3px solid #168fe9;

    border-radius:
        var(--radius);

    box-shadow:
        var(--shadow);

    opacity:
        0;

    transform:
        translateY(20px);

    transition:
        opacity .7s ease,
        transform .7s ease;

}


.fake-news.visible {

    opacity:
        1;

    transform:
        translateY(0);

}


.fake-news::after {

    content:
        "?";

    position:
        absolute;

    right:
        25px;

    bottom:
        -35px;

    color:
        rgba(69, 190, 255, .05);

    font-size:
        13rem;

    font-weight:
        950;

}


.fake-news h3 {

    margin-top:
        0;

    color:
        #61c9ff;

}


.fake-news p {

    position:
        relative;

    z-index:
        2;

    color:
        #b2c8d9;

}


/* =====================================================
   SUBSEÇÃO
===================================================== */

.subsection-title {

    display:
        flex;

    align-items:
        center;

    gap:
        15px;

    margin:
        45px 0 10px;

}


.subsection-title span {

    color:
        #348dbb;

    font-size:
        .62rem;

    font-weight:
        900;

    letter-spacing:
        1px;

}


.subsection-title h3 {

    margin:
        0;

    color:
        #e9f7ff;

    font-size:
        1.5rem;

}


/* =====================================================
   ALERTA
===================================================== */

.alert {

    display:
        flex;

    align-items:
        center;

    gap:
        18px;

    padding:
        21px 25px;

    margin:
        25px 0;

    background:
        linear-gradient(
            135deg,
            rgba(17, 47, 77, .9),
            rgba(7, 24, 40, .9)
        );

    border:
        1px solid rgba(61, 150, 204, .35);

    border-left:
        3px solid #3cb9ff;

    border-radius:
        13px;

    box-shadow:
        0 15px 45px rgba(0,0,0,.2);

}


.alert-icon {

    width:
        43px;

    height:
        43px;

    flex:
        0 0 43px;

    display:
        grid;

    place-items:
        center;

    color:
        white;

    background:
        linear-gradient(
            135deg,
            #087ac7,
            #11a9ed
        );

    border-radius:
        50%;

    font-weight:
        950;

    box-shadow:
        0 0 25px rgba(0, 159, 236, .2);

}


.alert div:last-child {

    display:
        flex;

    flex-direction:
        column;

}


.alert strong {

    color:
        #6dccff;

    font-size:
        .72rem;

    letter-spacing:
        1.5px;

}


.alert span {

    color:
        #c3d9eb;

    font-size:
        .85rem;

}


/* =====================================================
   LEITURA
===================================================== */

body.reading-active .content-section.active {

    box-shadow:
        0 0 90px rgba(0, 145, 255, .06);

}


body.reading-active #lerTexto {

    animation:
        pulseBlue 1.5s infinite;

}


@keyframes pulseBlue {

    0%,
    100% {
        box-shadow:
            0 0 0 rgba(30,160,255,0);
    }

    50% {
        box-shadow:
            0 0 25px rgba(30,160,255,.45);
    }

}


/* =====================================================
   DISCO
===================================================== */

.disco {

    --disco-speed: 1s;

    position:
        relative;

    width:
        180px;

    height:
        180px;

    border-radius:
        50%;

    background:
        radial-gradient(
            circle,
            #222 0%,
            #101010 35%,
            #050505 65%,
            #171717 100%
        );

    border:
        4px solid #333;

    box-shadow:
        0 0 30px rgba(0,0,0,.5);

    animation:
        discoSpin var(--disco-speed) linear infinite;

    transition:
        background .3s ease,
        box-shadow .3s ease,
        filter .3s ease;

}


.disco::before {

    content:
        "";

    position:
        absolute;

    inset:
        15px;

    border-radius:
        50%;

    border:
        1px solid rgba(255,255,255,.18);

    box-shadow:
        inset 0 0 20px rgba(255,255,255,.08);

}


.disco::after {

    content:
        "";

    position:
        absolute;

    width:
        34px;

    height:
        34px;

    left:
        50%;

    top:
        50%;

    transform:
        translate(-50%, -50%);

    border-radius:
        50%;

    background:
        #aaa;

    border:
        7px solid #222;

}


.disco.velocidade-maxima {

    background:
        radial-gradient(
            circle,
            #ffffff 0%,
            #f5fbff 35%,
            #dff7ff 65%,
            #ffffff 100%
        );

    border-color:
        #ffffff;

    box-shadow:
        0 0 30px #ffffff,
        0 0 70px rgba(150, 230, 255, .9),
        0 0 130px rgba(72, 197, 255, .55);

    filter:
        brightness(1.3);

}


@keyframes discoSpin {

    to {
        transform:
            rotate(360deg);
    }

}


/* =====================================================
   FOOTER
===================================================== */

footer {

    position:
        relative;

    padding:
        65px 0 28px;

    background:
        rgba(1, 5, 10, .95);

    border-top:
        1px solid var(--border);

}


.footer-top {

    display:
        flex;

    justify-content:
        space-between;

    gap:
        50px;

    padding-bottom:
        38px;

}


.footer-logo {

    display:
        flex;

    align-items:
        center;

    gap:
        10px;

}


.footer-logo > span {

    width:
        42px;

    height:
        42px;

    display:
        grid;

    place-items:
        center;

    color:
        white;

    background:
        linear-gradient(
            135deg,
            #0764bb,
            #31b5ff
        );

    border-radius:
        10px;

    font-weight:
        950;

}


.footer-logo div {

    display:
        flex;

    flex-direction:
        column;

}


.footer-logo strong {

    font-size:
        .85rem;

    letter-spacing:
        2px;

}


.footer-logo small {

    color:
        #4d687f;

    font-size:
        .5rem;

    letter-spacing:
        1.5px;

}


.footer-top p {

    max-width:
        500px;

    color:
        #687f96;

    font-size:
        .85rem;

}


.footer-top h3 {

    margin-top:
        0;

    color:
        #59c4ff;

    font-size:
        .9rem;

}


.equipe {

    margin:
        0;

    padding-left:
        18px;

    color:
        #9db6c9;

    font-size:
        .85rem;

}


.equipe li {
    margin-bottom:
        5px;
}


.footer-bottom {

    display:
        flex;

    justify-content:
        space-between;

    gap:
        20px;

    padding-top:
        22px;

    border-top:
        1px solid rgba(255,255,255,.06);

    color:
        #4e667b;

    font-size:
        .65rem;

}


/* =====================================================
   ALTO CONTRASTE
===================================================== */

body.high-contrast {

    background:
        #000;

    color:
        white;

}


body.high-contrast .background-effects,
body.high-contrast .hero-glow,
body.high-contrast .hero-ring,
body.high-contrast .hero-visual,
body.high-contrast .particles {

    display:
        none;

}


body.high-contrast .hero,
body.high-contrast .card,
body.high-contrast .intro-box,
body.high-contrast .content-area,
body.high-contrast .fake-news,
body.high-contrast .alert {

    background:
        #000;

    color:
        white;

    border-color:
        white;

}


body.high-contrast .hero h1,
body.high-contrast .section-header h2,
body.high-contrast .card h3,
body.high-contrast .content-area h3,
body.high-contrast .fake-news h3 {

    color:
        white;

}


body.high-contrast .nav-button {

    background:
        #000;

    color:
        white;

    border-color:
        white;

}


body.high-contrast .nav-button.active {

    background:
        white;

    color:
        black;

}


body.high-contrast p,
body.high-contrast .section-description {

    color:
        white;

}


/* =====================================================
   RESPONSIVIDADE
===================================================== */

@media (max-width: 1050px) {

    .hero-layout {

        grid-template-columns:
            1fr;

    }

    .hero-visual {

        display:
            none;

    }

    .hero {

        min-height:
            650px;

    }

}


@media (max-width: 900px) {

    .nav-container {

        flex-direction:
            column;

        align-items:
            stretch;

        padding:
            12px 0;

    }


    .nav-brand {

        justify-content:
            center;

    }


    .nav-buttons {

        width:
            100%;

    }


    .nav-status {

        display:
            none;

    }


    .accessibility-container {

        align-items:
            flex-start;

        flex-direction:
            column;

        gap:
            12px;

    }


    .accessibility-title {

        min-width:
            0;

    }

}


@media (max-width: 700px) {

    .container {

        width:
            calc(100% - 30px);

    }


    .hero {

        min-height:
            630px;

    }


    .hero-content {

        padding:
            65px 0;

    }


    .hero-badge {

        font-size:
            .55rem;

        gap:
            6px;

    }


    .hero h1 {

        font-size:
            clamp(3rem, 15vw, 5rem);

        letter-spacing:
            -3px;

    }


    .hero-description {

        font-size:
            .95rem;

        line-height:
            1.7;

    }


    .hero-actions {

        flex-direction:
            column;

        align-items:
            stretch;

    }


    .hero-primary,
    .hero-secondary {

        width:
            100%;

    }


    .hero-info {

        gap:
            15px;

        margin-top:
            38px;

    }


    .hero-info-item strong {

        font-size:
            1.25rem;

    }


    .accessibility-buttons {

        display:
            grid;

        grid-template-columns:
            repeat(2, 1fr);

        width:
            100%;

    }


    .accessibility-panel button {

        justify-content:
            center;

        width:
            100%;

    }


    .nav-buttons {

        display:
            grid;

        grid-template-columns:
            1fr 1fr;

    }


    .nav-button {

        min-height:
            48px;

    }


    main {

        padding:
            60px 0 80px;

    }


    .section-header {

        margin-bottom:
            28px;

    }


    .section-header h2 {

        font-size:
            2.5rem;

        letter-spacing:
            -2px;

    }


    .section-counter {

        font-size:
            3rem;

    }


    .intro-box {

        flex-direction:
            column;

        padding:
            24px;

    }


    .cards {

        grid-template-columns:
            1fr;

    }


    .card {

        min-height:
            auto;

        padding:
            25px;

        padding-bottom:
            55px;

    }


    .content-area,
    .fake-news {

        padding:
            25px;

    }


    .footer-top {

        flex-direction:
            column;

    }


    .footer-bottom {

        flex-direction:
            column;

    }

}


@media (max-width: 450px) {

    .accessibility-buttons {

        grid-template-columns:
            1fr;

    }


    .nav-buttons {

        grid-template-columns:
            1fr;

    }


    .hero-info {

        display:
            grid;

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

    }


    .hero-divider {

        display:
            none;

    }


    .hero-badge span:not(.status-dot) {

        font-size:
            .48rem;

    }

}


/* =====================================================
   REDUÇÃO DE MOVIMENTO
===================================================== */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior:
            auto;
    }


    *,
    *::before,
    *::after {

        animation:
            none !important;

        transition:
            none !important;

    }

}