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

:root {
    --iga-dark: #2A2A2A;
    --iga-orange: #FF943A;
    --iga-light: #ffffff;
    --text-main: #2A2A2A;
    --text-muted: #4F5661;
    --bg-page: #f4f5f7;
    --border-color: #eef0f2;
}

body {
    font-family: 'Fira Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.45;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* --- Layout --- */

.container {
    width: 100%;
    margin: 0 auto;
    background: #ffffff;
    border-radius: 0;
    overflow: hidden;
}

/* --- Header --- */

.header {
    background-color: var(--iga-dark);
    color: #ffffff;
    padding: 32px 24px 34px;
    border-bottom: 4px solid var(--iga-orange);
}

.header-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    height: 42px;
    width: auto;
    flex-shrink: 0;
    filter: drop-shadow(0 0 8px rgba(255, 148, 58, 0.2));
}

.small-title {
    font-family: 'Fira Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.005em;
    text-transform: none;
}

/* --- Content --- */

.content {
    padding: 40px 24px 48px;
    display: flex;
    flex-direction: column;
    gap: 44px;
}

/* --- Typography --- */

h1 {
    font-family: 'Fira Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

h2 {
    font-family: 'Fira Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 21px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.005em;
    text-transform: none;
    border-left: 4px solid var(--iga-orange);
    padding-left: 16px;
    margin-bottom: 4px;
}

.intro p {
    font-size: 17px;
    line-height: 1.55;
    color: var(--text-muted);
}

/* --- Blocks & Grid --- */

.mobile-row,
.mobile-row.reverse {
    display: flex;
    flex-direction: column;
    gap: 32px;
    align-items: stretch;
}

.mobile-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-media {
    display: flex;
    justify-content: center;
}

/* --- Smartphone Frame --- */

.smartphone-frame {
    width: 100%;
    max-width: 300px;
    aspect-ratio: 9 / 16;
    background: #000000;
    border-radius: 40px;
    padding: 8px;
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.14);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.phone-screen {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 32px;
    display: block;
    background-color: #002D62;
}

/* --- Elements --- */

.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: -4px 0;
}

ul {
    list-style: none;
    padding-left: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

ul li {
    position: relative;
    font-size: 16px;
    line-height: 1.45;
    color: var(--text-main);
}

ul li::before {
    content: "";
    position: absolute;
    left: -24px;
    top: 9px;
    width: 7px;
    height: 7px;
    background: var(--iga-orange);
    border-radius: 50%;
}

/* --- Footer Box --- */

.important-box {
    background-color: var(--iga-dark);
    color: var(--iga-light);
    padding: 28px 24px;
    border-radius: 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.company-name {
    font-weight: 700;
    font-size: 18px;
    line-height: 1.25;
}

.company-site {
    color: var(--iga-orange);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.25;
    opacity: 0.95;
}

/* --- Desktop --- */

@media (min-width: 769px) {
    body {
        padding: 20px;
    }

    .container {
        max-width: 210mm;
        border-radius: 40px;
        box-shadow: 0 24px 48px rgba(17, 17, 26, 0.04);
    }

    .header {
        padding: 36px 64px 38px;
    }

    .header-content {
        gap: 22px;
    }

    .logo {
        height: 46px;
    }

    .small-title {
        font-size: 24px;
        line-height: 1.18;
        letter-spacing: -0.01em;
    }

    .content {
        padding: 56px 70px 68px;
        gap: 60px;
    }

    h1 {
        font-size: 34px;
        line-height: 1.18;
        margin-bottom: 18px;
        max-width: 680px;
    }

    .intro p {
        font-size: 18px;
        line-height: 1.55;
        max-width: 700px;
    }

    h2 {
        font-size: 23px;
        padding-left: 18px;
    }

    .mobile-row {
     flex-direction: row;
        gap: 64px;
        align-items: flex-start;
    }

    .mobile-row.reverse {
        flex-direction: row-reverse;
    }

    .mobile-text,
    .mobile-media {
        flex: 1;
    }

    .mobile-text {
        padding-top: 24px;
    }
}

    .smartphone-frame {
        max-width: 290px;
    }

    .important-box {
        padding: 34px 40px;
        border-radius: 28px;
    }
}

/* --- Small Mobile --- */

@media (max-width: 380px) {
    .header {
        padding: 28px 20px 30px;
    }

    .header-content {
        gap: 14px;
    }

    .logo {
        height: 38px;
    }

    .small-title {
        font-size: 18px;
    }

    .content {
        padding: 36px 20px 44px;
    }

    h1 {
        font-size: 26px;
    }

    .intro p {
        font-size: 16px;
    }

    .smartphone-frame {
        max-width: 280px;
    }
}