/* FONT FACES */
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Thin.ttf') format('truetype'); font-weight: 100; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-ThinItalic.ttf') format('truetype'); font-weight: 100; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-ExtraLight.ttf') format('truetype'); font-weight: 200; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-ExtraLightItalic.ttf') format('truetype'); font-weight: 200; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Light.ttf') format('truetype'); font-weight: 300; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-LightItalic.ttf') format('truetype'); font-weight: 300; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Italic.ttf') format('truetype'); font-weight: 400; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Medium.ttf') format('truetype'); font-weight: 500; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-MediumItalic.ttf') format('truetype'); font-weight: 500; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-SemiBold.ttf') format('truetype'); font-weight: 600; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-SemiBoldItalic.ttf') format('truetype'); font-weight: 600; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Bold.ttf') format('truetype'); font-weight: 700; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-BoldItalic.ttf') format('truetype'); font-weight: 700; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-ExtraBold.ttf') format('truetype'); font-weight: 800; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-ExtraBoldItalic.ttf') format('truetype'); font-weight: 800; font-style: italic; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-Black.ttf') format('truetype'); font-weight: 900; font-style: normal; }
@font-face { font-family: 'Raleway'; src: url('../fonts/Raleway-BlackItalic.ttf') format('truetype'); font-weight: 900; font-style: italic; }

/* BODY */
body {
    font-family: 'Raleway', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

.main-content {
    flex: 1;
}

/* PAGE HEADER */
.page-header {
    position: relative;
    overflow: hidden;
    padding: 80px 40px 60px;
    padding-top: 110px;
    text-align: center;
    color: white;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: -20px; /* compensate for blur edge fade */
    background: url('../images/header_3.avif');
    background-size: cover;
    background-position: center;
    filter: blur(10px);
    z-index: 0;
}

.page-header::after {
    content: '';
    position: absolute;
    inset: 0;
    background: #00569d80;
    z-index: 1;
}

.page-header-content {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    margin: 0 auto;
}

.page-title {
    font-family: 'Raleway', Arial, sans-serif;
    font-size: 48px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 1px;
}

.page-subtitle {
    font-family: 'Raleway', Arial, sans-serif;
    font-size: 20px;
    font-weight: 300;
    margin: 0;
    margin-top: 20px;
    opacity: 0.95;
}

@media (max-width: 768px) {
    .page-header {
        padding: 60px 20px 40px;
    }

    .page-title {
        font-size: 36px;
    }

    .page-subtitle {
        font-size: 17px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 30px;
    }
}

/* ── BODY SECTION ─────────────────────────────────────────────────────────── */
.sustain-intro-section {
    padding: 80px 40px;
    background: #E9F9FF;
}
.sustain-body-section {
    padding: 80px 40px;
    background: #fff;
}

.sustain-container {
    max-width: 1100px;
    margin: 0 auto;
}

.sustain-paragraph {
    font-family: 'Raleway', Arial, sans-serif;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.8;
    color: #333;
}

.sustain-empty {
    font-family: 'Raleway', Arial, sans-serif;
    font-size: 16px;
    color: #999;
    text-align: center;
    padding: 40px 0;
}

/* ── PDF LIST ─────────────────────────────────────────────────────────────── */
.pdf-list {
    display: flex;
    flex-direction: column;
    border-top: 2px solid #e0e0e0;
}

.pdf-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 12px;
    border-bottom: 1px solid #e0e0e0;
    text-decoration: none;
    color: #00579D;
    font-family: 'Raleway', Arial, sans-serif;
    font-size: 17px;
    font-weight: 500;
    transition: background 0.2s ease, padding-left 0.2s ease;
}

.pdf-item:hover {
    background: #E9F9FF;
    padding-left: 22px;
}

.pdf-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    color: #00579D;
}

.pdf-icon svg {
    width: 100%;
    height: 100%;
}

.pdf-link-text {
    flex: 1;
}

.pdf-arrow {
    flex-shrink: 0;
    font-size: 18px;
    opacity: 0.45;
    transition: opacity 0.2s ease;
}

.pdf-item:hover .pdf-arrow {
    opacity: 1;
}

@media (max-width: 768px) {
    .sustain-body-section {
        padding: 50px 20px;
    }
    .sustain-paragraph {
        font-size: 16px;
    }
    .pdf-item {
        font-size: 15px;
        gap: 12px;
    }
}