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

html,
body {
    width: 100%;
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    background: #ffffff;
    color: #101828;
    overflow-x: hidden;
}

body {
    position: relative;
}

/* ESTRUTURA */
.app-shell {
    width: 100%;
    min-height: 100vh;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    background:
        radial-gradient(circle at top left, rgba(0, 229, 255, 0.08), transparent 22%),
        radial-gradient(circle at bottom right, rgba(0, 229, 255, 0.06), transparent 20%),
        #ffffff;
}

.hero-card,
.features-section {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #e6eef5;
    border-radius: 32px;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.06);
}

/* HERO */
.hero-card {
    padding: 34px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
    align-items: center;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand-icon {
    width: 78px;
    height: 78px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    background: linear-gradient(135deg, #dffcff, #eefcff);
    border: 1px solid #c8f8ff;
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.12);
}

.brand-text h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #111827;
    line-height: 1.05;
}

.brand-text p {
    margin-top: 8px;
    color: #526071;
    font-size: 1.05rem;
    line-height: 1.6;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tag {
    width: fit-content;
    padding: 9px 16px;
    border-radius: 999px;
    background: #ecfdff;
    color: #0891b2;
    border: 1px solid #b6f3ff;
    font-size: 0.88rem;
    font-weight: 700;
}

.hero-content h2 {
    font-size: 3.3rem;
    line-height: 1.08;
    font-weight: 800;
    color: #111827;
    max-width: 760px;
}

.hero-content h2 span {
    color: #06b6d4;
}

.description {
    max-width: 760px;
    font-size: 1.08rem;
    line-height: 1.8;
    color: #536273;
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 6px;
}

.choice-card {
    text-decoration: none;
    color: inherit;
    background: #f9fdff;
    border: 1px solid #d9f7ff;
    border-radius: 24px;
    padding: 24px;
    min-height: 190px;
    transition: 0.25s ease;
    box-shadow: 0 8px 22px rgba(6, 182, 212, 0.05);
}

.choice-card:hover {
    transform: translateY(-4px);
    border-color: #8eefff;
    box-shadow: 0 16px 35px rgba(6, 182, 212, 0.12);
}

.choice-icon {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e6fbff;
    font-size: 28px;
    margin-bottom: 16px;
}

.choice-card h3 {
    font-size: 1.45rem;
    color: #0f172a;
    margin-bottom: 12px;
    font-weight: 800;
}

.choice-card p {
    color: #556375;
    line-height: 1.75;
    font-size: 0.98rem;
}

.action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 6px;
}

.btn-primary,
.btn-secondary {
    text-decoration: none;
    border-radius: 18px;
    padding: 15px 24px;
    font-size: 0.98rem;
    font-weight: 700;
    transition: 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
}

.btn-primary {
    background: #06d4f8;
    color: #06212a;
    border: 1px solid #06d4f8;
    box-shadow: 0 14px 28px rgba(6, 212, 248, 0.22);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: #00c7eb;
}

.btn-secondary {
    background: #ffffff;
    color: #0891b2;
    border: 1px solid #bcefff;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    background: #f2fcff;
}

/* MOCKUP CELULAR */
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 100%;
    max-width: 380px;
    background: #111827;
    border-radius: 42px;
    padding: 14px;
    box-shadow:
        0 25px 55px rgba(15, 23, 42, 0.18),
        0 0 0 8px #eafcff;
    position: relative;
}

.phone-notch {
    width: 130px;
    height: 24px;
    border-radius: 0 0 18px 18px;
    background: #0b1220;
    margin: 0 auto 10px auto;
}

.phone-screen {
    min-height: 690px;
    border-radius: 32px;
    background:
        linear-gradient(180deg, #f7feff 0%, #eefcff 100%);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.phone-header {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mini-badge {
    width: fit-content;
    padding: 7px 12px;
    border-radius: 999px;
    background: #ddf9ff;
    color: #0891b2;
    font-size: 0.8rem;
    font-weight: 700;
}

.phone-header h3 {
    font-size: 1.8rem;
    color: #111827;
    font-weight: 800;
}

.phone-header p {
    color: #5d6a79;
    line-height: 1.65;
    font-size: 0.97rem;
}

.phone-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.phone-option {
    min-height: 126px;
    border-radius: 24px;
    background: #ffffff;
    border: 1px solid #d9f5fb;
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}

.phone-option.active {
    background: linear-gradient(135deg, #eaffff, #f4feff);
    border-color: #9fedff;
}

.phone-option-icon {
    font-size: 1.8rem;
}

.phone-option strong {
    font-size: 1.2rem;
    color: #111827;
}

.phone-option span {
    color: #5f6c7a;
    font-size: 0.95rem;
}

.phone-preview {
    margin-top: auto;
}

.preview-box {
    border-radius: 24px;
    background: #0f172a;
    padding: 22px;
    color: #ffffff;
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.12);
}

.preview-box small {
    display: inline-block;
    margin-bottom: 10px;
    color: #7ceeff;
    font-weight: 700;
    font-size: 0.85rem;
}

.preview-box h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.preview-box p {
    color: #d7e2f1;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* FEATURES */
.features-section {
    padding: 34px;
}

.section-title {
    margin-bottom: 24px;
}

.section-title h3 {
    margin-top: 14px;
    font-size: 2rem;
    line-height: 1.2;
    color: #111827;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.feature-card {
    padding: 24px;
    border-radius: 26px;
    background: #fbfeff;
    border: 1px solid #e1f6fb;
    min-height: 220px;
    transition: 0.25s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 28px rgba(6, 182, 212, 0.08);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h4 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: #111827;
}

.feature-card p {
    line-height: 1.75;
    color: #5a6776;
    font-size: 0.96rem;
}

/* TABLET */
@media (max-width: 1100px) {
    .hero-card {
        grid-template-columns: 1fr;
    }

    .hero-right {
        justify-content: flex-start;
    }

    .phone-mockup {
        max-width: 100%;
    }

    .features-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-content h2 {
        font-size: 2.7rem;
    }

    .brand-text h1 {
        font-size: 2.4rem;
    }
}

/* MOBILE */
@media (max-width: 768px) {
    .app-shell {
        padding: 16px;
        gap: 18px;
    }

    .hero-card,
    .features-section {
        border-radius: 24px;
        padding: 18px;
    }

    .brand-row {
        align-items: flex-start;
        gap: 12px;
    }

    .brand-icon {
        width: 58px;
        height: 58px;
        border-radius: 18px;
        font-size: 28px;
    }

    .brand-text h1 {
        font-size: 2rem;
        line-height: 1.1;
    }

    .brand-text p {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .hero-content {
        gap: 16px;
    }

    .hero-content h2 {
        font-size: 2rem;
        line-height: 1.12;
    }

    .description {
        font-size: 0.96rem;
        line-height: 1.7;
    }

    .choice-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .choice-card {
        min-height: auto;
        padding: 18px;
        border-radius: 20px;
    }

    .action-group {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .hero-right {
        justify-content: center;
    }

    .phone-mockup {
        max-width: 100%;
        border-radius: 28px;
        padding: 10px;
    }

    .phone-screen {
        min-height: 560px;
        border-radius: 24px;
        padding: 18px;
    }

    .phone-header h3 {
        font-size: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .feature-card {
        min-height: auto;
        border-radius: 20px;
        padding: 18px;
    }

    .section-title h3 {
        font-size: 1.55rem;
    }
}

@media (max-width: 420px) {
    .brand-text h1 {
        font-size: 1.7rem;
    }

    .hero-content h2 {
        font-size: 1.7rem;
    }

    .phone-screen {
        min-height: 500px;
    }
}