@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Playfair+Display:wght@500;600;700&display=swap');

:root {
    --forest: #244c37;
    --forest-dark: #173726;
    --green: #547b55;
    --sage: #91a98c;
    --mint: #dce9d9;
    --cream: #f7f8f0;
    --white: #ffffff;
    --text: #26372b;
    --muted: #788579;
    --border: #e3e9df;
    --shadow: 0 12px 35px rgba(35, 69, 47, 0.08);
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--cream);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}


/* =====================================
   TOPBAR
===================================== */

.topbar {
    width: 100%;
    min-height: 75px;
    padding: 15px 6%;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--forest);
    font-size: 19px;
    font-weight: 800;
}

.brand-icon {
    font-size: 24px;
}

.marketplaces {
    display: flex;
    align-items: center;
    gap: 10px;
}

.marketplaces a {
    display: flex;
    align-items: center;
    justify-content: center;
}

.marketplaces img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
    transition: transform 0.2s ease;
}

.marketplaces img:hover {
    transform: translateY(-3px);
}


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

.layout {
    max-width: 1250px;
    margin: 35px auto;
    padding: 0 25px;
    display: grid;
    grid-template-columns: 275px 1fr;
    gap: 30px;
    align-items: start;
}


/* =====================================
   SIDEBAR
===================================== */

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 100px;
}

.profile-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.profile-cover {
    height: 110px;
    background:
        linear-gradient(
            135deg,
            rgba(36, 76, 55, 0.85),
            rgba(111, 151, 102, 0.7)
        ),
        url('https://images.unsplash.com/photo-1448375240586-882707db888b?w=900')
        center / cover;
}

.profile-content {
    padding: 0 22px 25px;
    margin-top: -43px;
}


.avatar {
    width: 88px;
    height: 88px;

    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center;

    border-radius: 50%;
    border: 5px solid white;

    display: block;
    flex-shrink: 0;

    background: var(--mint);
    margin-bottom: 13px;
}


.eyebrow {
    color: var(--green);
    font-size: 10px;
    letter-spacing: 2px;
    font-weight: 800;
    margin-bottom: 9px;
}

.profile-content h2 {
    color: var(--forest);
    font-size: 22px;
    font-weight: 800;
}

.profile-major {
    color: var(--green);
    font-size: 13px;
    font-weight: 700;
    margin-top: 4px;
}

.profile-description {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7;
    margin-top: 12px;
}


/* =====================================
   NAVIGATION
===================================== */

.side-nav {
    background: white;
    padding: 12px;
    border-radius: 17px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 11px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.2s ease;
}

.nav-link span {
    font-size: 19px;
}

.nav-link:hover,
.nav-link.active {
    background: var(--mint);
    color: var(--forest);
}

.sidebar-stamp {
    background: #eaf1e5;
    padding: 20px;
    border-radius: 17px;
    text-align: center;
    color: var(--forest);
}

.sidebar-stamp span {
    font-size: 30px;
}

.sidebar-stamp p {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 14px;
    margin-top: 5px;
}


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

.main-content {
    min-width: 0;
}

.hero {
    min-height: 300px;
    padding: 40px;
    border-radius: 23px;
    background:
        linear-gradient(
            110deg,
            rgba(23, 55, 38, 0.96),
            rgba(53, 95, 61, 0.88)
        ),
        url('https://images.unsplash.com/photo-1472396961693-142e6e269027?w=1200')
        center / cover;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    color: white;
    box-shadow: var(--shadow);
}

.hero-content {
    max-width: 530px;
    position: relative;
    z-index: 2;
}

.hero .eyebrow {
    color: #c4dfb7;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(30px, 4vw, 45px);
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero h1 span {
    color: #b6d6a5;
    font-style: italic;
}

.hero-description {
    color: #e1ebdc;
    font-size: 13px;
    max-width: 390px;
    line-height: 1.8;
}

.hero-button {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    margin-top: 25px;
    padding: 12px 19px;
    background: #dce9d9;
    color: var(--forest);
    text-decoration: none;
    border-radius: 9px;
    font-size: 12px;
    font-weight: 800;
    transition: 0.2s;
}

.hero-button:hover {
    background: white;
    transform: translateY(-3px);
}

.hero-decoration {
    position: absolute;
    right: 50px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.15);
    font-size: 85px;
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}


/* =====================================
   STATISTICS
===================================== */

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 22px 0;
}

.stat {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 43px;
    height: 43px;
    background: var(--mint);
    color: var(--forest);
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 20px;
}

.stat h3 {
    color: var(--forest);
    font-size: 23px;
    line-height: 1.2;
}

.stat p {
    color: var(--muted);
    font-size: 11px;
    margin-top: 4px;
}


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

.section {
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    margin-top: 22px;
    box-shadow: var(--shadow);
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.section-heading h2,
.profile-section h2 {
    font-family: 'Playfair Display', serif;
    color: var(--forest);
    font-size: 26px;
}

.section-description {
    color: var(--muted);
    font-size: 12px;
    margin-top: 5px;
}

.archive-label {
    background: var(--mint);
    color: var(--forest);
    padding: 8px 12px;
    border-radius: 30px;
    font-size: 10px;
    font-weight: 700;
    white-space: nowrap;
}


/* =====================================
   SEARCH
===================================== */

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
}

.search {
    flex: 1;
    max-width: 450px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--cream);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0 13px;
}

.search span {
    color: var(--green);
    font-size: 23px;
}

.search input {
    width: 100%;
    min-width: 0;
    height: 43px;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: inherit;
    font-size: 12px;
}

.result-count {
    color: var(--muted);
    font-size: 11px;
    white-space: nowrap;
}


/* =====================================
   NOTES
===================================== */

.notes-list {
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.note-card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    transition: 0.2s ease;
}

.note-card:hover {
    border-color: var(--sage);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(35, 69, 47, 0.06);
}

.note-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.course-tag {
    display: inline-block;
    background: var(--mint);
    color: var(--forest);
    border-radius: 30px;
    padding: 5px 11px;
    font-size: 10px;
    font-weight: 800;
}

.note-date {
    color: var(--muted);
    font-size: 10px;
}

.note-card h3 {
    color: var(--forest);
    font-size: 17px;
    margin-bottom: 10px;
}

.note-body {
    color: #667469;
    font-size: 13px;
    line-height: 1.9;
    overflow-wrap: anywhere;
}

.note-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 10px;
}


/* =====================================
   EMPTY STATE
===================================== */

.empty-state {
    padding: 45px 20px;
    text-align: center;
    border: 1px dashed var(--sage);
    border-radius: 14px;
    background: #f9fbf6;
}

.empty-state span {
    font-size: 35px;
}

.empty-state h3 {
    color: var(--forest);
    font-family: 'Playfair Display', serif;
    margin: 10px 0 5px;
}

.empty-state p {
    color: var(--muted);
    font-size: 12px;
}


/* =====================================
   PROFILE SECTION
===================================== */

.profile-section p:last-child {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.9;
    margin-top: 12px;
}


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

footer {
    text-align: center;
    padding: 30px 10px;
    color: var(--muted);
    font-size: 11px;
    line-height: 1.9;
}


/* =====================================
   TABLET
===================================== */

@media screen and (max-width: 900px) {

    .layout {
        grid-template-columns: 230px 1fr;
        gap: 20px;
    }

    .hero {
        padding: 30px;
    }

    .hero-decoration {
        right: 20px;
        font-size: 60px;
    }

    .section {
        padding: 22px;
    }
}


/* =====================================
   MOBILE
===================================== */

@media screen and (max-width: 680px) {

    .topbar {
        min-height: 65px;
        padding: 12px 17px;
    }

    .brand {
        font-size: 16px;
    }

    .marketplaces {
        gap: 7px;
    }

    .marketplaces img {
        width: 25px;
        height: 25px;
    }

    .layout {
        display: flex;
        flex-direction: column;
        padding: 0 15px;
        margin: 20px auto;
        gap: 18px;
    }

    .sidebar {
        width: 100%;
        position: static;
    }

    .profile-cover {
        height: 85px;
    }

    .profile-content {
        margin-top: -38px;
    }

    .avatar {
        width: 78px;
        height: 78px;
        aspect-ratio: 1 / 1;
    }

    .side-nav {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        padding: 7px;
        gap: 4px;
    }

    .nav-link {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        gap: 3px;
        padding: 9px 4px;
        font-size: 10px;
    }

    .nav-link span {
        font-size: 18px;
    }

    .sidebar-stamp {
        display: none;
    }

    .hero {
        min-height: 260px;
        padding: 25px 20px;
        border-radius: 17px;
    }

    .hero h1 {
        font-size: 30px;
    }

    .hero-description {
        font-size: 12px;
    }

    .hero-decoration {
        right: 5px;
        font-size: 38px;
        opacity: 0.5;
    }

    .stats {
        gap: 10px;
        margin: 15px 0;
    }

    .stat {
        padding: 12px;
        gap: 9px;
    }

    .stat-icon {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }

    .stat h3 {
        font-size: 19px;
    }

    .stat p {
        font-size: 9px;
    }

    .section {
        padding: 17px;
        border-radius: 16px;
        margin-top: 15px;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 18px;
    }

    .section-heading h2,
    .profile-section h2 {
        font-size: 23px;
    }

    .archive-label {
        font-size: 9px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .search {
        max-width: none;
    }

    .result-count {
        text-align: right;
    }

    .note-card {
        padding: 15px;
    }

    .note-top {
        align-items: flex-start;
        flex-direction: column;
    }

    .note-card h3 {
        font-size: 15px;
    }

    .note-body {
        font-size: 12px;
    }

    .note-meta {
        gap: 10px;
        flex-wrap: wrap;
    }
}


/* =====================================
   SMALL MOBILE
===================================== */

@media screen and (max-width: 360px) {

    .brand {
        font-size: 14px;
    }

    .marketplaces img {
        width: 22px;
        height: 22px;
    }

    .layout {
        padding: 0 10px;
    }

    .hero h1 {
        font-size: 25px;
    }

    .stats {
        grid-template-columns: 1fr 1fr;
    }

    .stat {
        padding: 9px;
    }

    .section {
        padding: 13px;
    }

    .note-card {
        padding: 12px;
    }
}