/* Global styles */

:root {
    --bg-main: #FFEDDF;
    --text-main: #072260;
    --accent-brown: #86615C;
    --section-green: #C5D86D;
    --highlight-mint: #AFE0CE;
    --border-color: #072260;
    --shadow-soft: 0 4px 12px rgba(7, 34, 96, 0.12);
    --shadow-hover: 0 10px 20px rgba(7, 34, 96, 0.16);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-family: "Helvetica", sans-serif;
    font-size: 16px;
    scroll-behavior: smooth;
}

body, h1, h2, h3, p, ul {
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
}

.main_content {
    position: relative;
}


img, video {
    display: block;
    max-width: 100%;
    height: auto;
}

a, button, .card, .block2, .block4 {
    transition: all 0.25s ease;
}

button {
    cursor: pointer;
    font-family: "helvetica", sans-serif;
}

footer {
    position: relative;
    width: 100%;
    z-index: 100;
    border-top: solid 1px var(--border-color);
    font-size: 1rem;
}


/* Header */

header {
    position: relative;
    width: 100%;
}

header .content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

header .logo {
    padding-left: 1.5rem;
    display: inline-flex;
    align-items: center;
    font-size: large;
    gap: 0.25rem;
    font-size: large;
    color: var(--text-main);
    text-decoration: none;
}

header .logo img {
    height: 2rem;
    width: auto;
}

.logo .academy {
    color: var(--accent-brown);
}

.logo-text {
    display: inline-flex;
    align-items: baseline;
    gap: 0.1rem;
}

/* Desktop nav (text) */

header nav .nav-text {
    display: flex;
    list-style: none;
    margin: 0;
    padding-right: 1rem;
}

header nav .nav-text li {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
}

header nav .nav-text a {
    font-size: 1.125rem;
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.2s ease;
}

header nav .nav-text a:hover {
    color: var(--accent-brown);
}

/* Hide icon nav on desktop */
header nav .nav-icons {
    display: none;
}

/* section 1 */
#section1 {
    display: flex;
    flex-direction: row;
    width: 100%;
    align-items: center;
    background-color: var(--section-green);
}

.image_banner {
    flex: 0 0 60%;   /* 60% of the container width */
    display: flex;
    justify-content: flex-start;
    padding: 2rem 1.5rem;
}

.image_banner img{
    width: 100%;
}

.content_section1 {
    display: flex;
    flex: 0 0 40%;  /* 40% of the container width */
    flex-direction: column;
    justify-content: center;
    padding-right: 3rem;
    padding-left: 1.5rem;
}

.content_section1 h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    text-align: left;
    line-height: 1.15;
    letter-spacing: 0.02em;
    margin-bottom: 1.5rem;
}

.content_section1 p {
    font-size: clamp(1.125rem, 2vw, 2rem);
    font-weight: 500;
    text-align: left;
    line-height: 1.4;
    margin-bottom: 2rem;
}

.content_section1 button {
    width: 100%;
    padding: 1rem;
    background-color: var(--text-main);
    color: var(--bg-main);
    border: none;
    border-radius: 0.4rem;
    font-size: 1.125rem;
    font-weight: 600;
    box-shadow: var(--shadow-soft);
}

.content_section1 button:hover {
    background-color: var(--accent-brown);
    transform: translateY(-2px);
}

/* section 2 */
#section2 {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    width: 100%;
    padding: 2rem 0;
}

.highlight {
    background-color: var(--highlight-mint);
    border: none;
}

.content_section2_1 {
    display: flex;
    flex: 0 0 60%;  /* 60% of the container width */
    flex-direction: column;
    justify-content: center;
    padding: 0 1.5rem;
}

.image_container1 img {
    width: 100%;
}

.content_section2_1 h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    text-align: left;
    line-height: 1.2;
    padding-top: 2rem;
}

.content_section2_1 p {
    font-size: 1.25rem;
    font-weight: 500;
    text-align: left;
    line-height: 1.6;
    margin-top: 1.5rem;
}

.content_section2_1 .quote-author {
  color: var(--accent-brown);
  cursor: pointer;
  margin-top: 1rem;
}

#visit_link{
    text-decoration: underline;
    color: var(--accent-brown);
    opacity: 1;
}

.content_section2_2 {
    display: flex;
    flex: 0 0 40%;  /* 40% of the container width */
    flex-direction: column;
    row-gap: 1.5rem;
    justify-content: stretch; 
    padding-right: 1.5rem;
}

.content_section2_2 .block2, .content_section4_2 .block4 {
    display: flex;
    flex-direction: row;
    align-items: center;
    border: solid 1px var(--border-color);
    background-color: transparent;
}

.content_section2_2 .block2:hover, .content_section4_2 .block4:hover {
    box-shadow: var(--shadow-soft);
    transform: translateY(-3px);
}

.image_container2, .image_container4 {
    flex: 0 0 35%;  /* 35% of the block width */
    display: flex;
    justify-content: flex-start;
    padding: 1rem;
}

.block2 .image_container2 img, .block4 .image_container4 img {
    width: 100%;
}

.orientation, .campus, .guest_lecture, .text_container {
    flex: 0 0 65%;  /* 65% of the block width */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-right: 1rem;
}

.orientation h3, .campus h3, .guest_lecture h3, .text_container h3 {
    font-size: 1.4rem;
    font-weight: 800;
    text-align: left;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.orientation p, .campus p, .guest_lecture p, .text_container p {
    font-size: 1rem;
    font-weight: 400;
    text-align: left;
    line-height: 1.5;
    padding: 0.25rem 0 0.5rem;
}

.orientation a, .campus a, .guest_lecture a {
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    line-height: 1.5;
    color: blue;
    text-decoration: none;
    cursor: pointer;
}

.orientation a:hover, .campus a:hover, .guest_lecture a:hover {
    text-decoration: underline;
    color: var(--accent-brown);
}

/* section 3 */

#section3 {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  background-color: var(--section-green); 
  padding-bottom: 2rem;
}

#section3 > h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    text-align: center;
    line-height: 1.2;
    padding: 2rem 1rem;
}

.content_section3 .content_desktop {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  width: 100%;
  padding: 0 4.5rem;
  justify-items: stretch;
}

.content_section3 .content_mobile {
    display: none;
}

.card {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
    width: 100%;
    background-color: var(--bg-main);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card img {
  width: 100%;
}

.card h3 {
    color: var(--text-main);
    font-size: 1.4rem;
    font-weight: 700;
    text-align: left;
    line-height: 1.3;
    padding: 1rem 1rem 0.5rem;
}

.card .courses-label {
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
    letter-spacing: 0.04em;
    color: var(--accent-brown);
    padding: 0.25rem 1rem;
}

.card .description {
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    text-align: left;
    padding: 0.5rem 1rem 1rem;
}

/* section 4 */

#section4 {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding: 2rem 0;
}

#section4 > h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    text-align: center;
    line-height: 1.2;
    padding: 0 1rem 2rem;
}

.content_section4 {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    width: 100%;
}

.content_section4_1 {
    display: flex;
    flex: 0 0 60%;  /* 60% of the container width */
    flex-direction: column;
    justify-content: stretch;
    padding: 0 1.5rem;
}

.video_container video{
    width: 100%;
}

.content_section4_1 h3 {
    font-size: 1.5rem;
    font-weight: 900;
    text-align: left;
    line-height: 1.2;
    padding-top: 1.5rem;
}

.content_section4_1 p {
    font-size: 1.125rem;
    font-weight: 400;
    text-align: left;
    line-height: 1.6;
    padding-top: 0.75rem;
}

.content_section4_2 {
    display: flex;
    flex: 0 0 40%;  /* 40% of the container width */
    flex-direction: column;
    row-gap: 1.5rem;
    justify-content: stretch;
    padding-right: 1.5rem;
}

/*footer*/

footer .content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 5rem;
    padding: 1rem 1.5rem;
}

.footer_content, .footer_nav {
    padding: 0;  
}

#copyright-icon {
    align-items: center;
}

.footer_nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer_nav a {
    color: var(--text-main);
    text-decoration: none;
}

.footer_nav a:hover {
    color: var(--accent-brown);
}

/* Tablet layout (≤ 1024px) */

@media (max-width: 1024px) {
    
    /* section 1 */
    
    .image_banner, .content_section1, .content_section2_1, .content_section2_2, .content_section4_1, .content_section4_2 {
        flex: 1 1 50%;
    }
    
    .content_section1 {
        padding-right: 2rem;
    }
    
    .content_section3, .content_desktop {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 2rem;
    }
}

/* Mobile layout (≤ 768px) */

@media (max-width: 768px) {
    
    /* hide desktop logo + text menu */
    header .logo, header nav .nav-text  { 
        display: none; 
    }

    /* make nav take the full header width */
    header .content {
        height: 64px;
        display: flex;
        align-items: center;
        justify-content: center;   /* important */
    }
    
    nav.informations {
        width: 100%;
    }
    
    /* icon row */
    header nav .nav-icons {
        display: flex;
        list-style: none;
        margin: 0;
        padding: 0 1rem;
        width: 100%;
        justify-content: space-between; /* spread across full width */
        align-items: center;
    }
    
    /* control svg size */
    header nav .nav-icons img {
        width: 32px;
        height: 32px;
        display: block;
    }

    .icon-link {
        position: relative;
        display: inline-flex;
        justify-content: center;
        align-items: center;
    }
    
    /* Hide tooltip by default */
    .icon-link .tooltip {
        position: absolute;
        bottom: -1.07rem; /* appears below icon */
        background-color: var(--text-main);
        color: white;
        padding: 4px 8px;
        font-size: 0.75rem;
        border-radius: 4px;
        white-space: nowrap;
        opacity: 0;
        transition: opacity 0.2s ease;
        pointer-events: none;
    }
    
    /* Show on hover */
    .icon-link:hover .tooltip {
        opacity: 1;
    }

    /* section 1 */

    #section1 {
    flex-direction: column;
    align-items: center;
    }
    
    .image_banner {
    padding: 0 0.25rem;
    }
    
    .content_section1 {
        padding: 2rem 1rem;
    }

    .content_section1 h1 {
        font-size: 3rem;
        padding-bottom: 0;
    }

    .content_section1 p {
        font-size: 1.5rem;
        padding-bottom: 0;
        margin-bottom: 1.5rem;
    }

    /* section 2 */
    .content_section2_1 {
        display: none;
    }

    #section2 {
        padding-top: 1rem;
    }

    .content_section2_2 {
        flex: 1 1 auto;
        width: 100%;
        padding: 0;
        row-gap: 0;
    }

    .content_section2_2 .block2 {
        flex-direction: column;
        align-items: stretch;
        border: none;
        border-bottom: 1px solid var(--border-color);
        box-shadow: none;
        transform: none;
    }

    .image_container2 img {
        padding: 0;
        width: 100%;
        height: auto;
    }

    .content_section2_2 .block2:last-child {
        border-bottom: none;
    }
    
    /* image full width */
    .image_container2 {        
        flex: 1 1 auto;
        width: 100%;
        padding: 1rem;
    }
    
    .image_container2 img {
        width: 100%;
        max-height: 220px;
        object-fit: cover;
    }
   
    /* text full width */
    .orientation, .campus, .guest_lecture {
        flex: 1 1 auto;
        width: 100%;
        padding: 0 2rem 2rem;
    }

    /* section 3 */
    .content_section3 .content_desktop {
        display: none;
    }

    #section3 {
        padding: 2rem 0;
    }

    
    #section3 > h2 {
        padding: 0 1rem 1rem;
    }

    .content_section3 .content_mobile {
        display: flex;
        flex-direction: column;
        row-gap: 0.75rem;
        align-items: center;
        width: 100%;
        padding: 0 1rem;
        background-color: var(--section-green); 
    }

    .content_section3 .square {
        width: 100%;
        background-color: var(--bg-main);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
        border-radius: 0.25rem;
    }

    .content_section3 .square h3 {
        padding: 1.25rem 1rem;
        margin: 0;
    }

    /* section 4 */

    .content_section4_1 {
        padding: 1rem 0;
    }

    .content_section4_2 {
        display: none;
    }

    .content_section4_1 p, .content_section4_1 h3 {
        display: none;
    }

    /*footer*/

    footer .content {
        justify-content: flex-start;
        min-height: 3rem;
        padding: 1rem 1.5rem;
    }

    .footer_nav {
        display: none;
    }
}