:root {
    /* siyai brand */
    --brand:       #F07820;
    --brand-dark:  #C75F10;
    --brand-light: #FFF0E6;

    /* light mode surfaces */
    --bg:            #F5F5F5;
    --surface:       #FFFFFF;
    --surface-strong:#FAFAFA;
    --ink:           #111111;
    --muted:         #5A5A5A;
    --line:          #E0E0E0;

    /* accent (replaces forest/teal/coral/amber) */
    --accent:   #F07820;
    --accent2:  #1A1A1A;
    --positive: #1f8a4c;
    --danger:   #C73D2B;
    --amber:    #F07820;

    /* sidebar stays near-black */
    --night:  #111111;

    --shadow: 0 18px 40px rgba(0, 0, 0, 0.10);
    --radius: 8px;
}

body.dark {
    --bg:            #111111;
    --surface:       #1C1C1C;
    --surface-strong:#242424;
    --ink:           #F0F0F0;
    --muted:         #A0A0A0;
    --line:          #333333;
    --brand-light:   #3A1800;
    --shadow: 0 18px 44px rgba(0, 0, 0, 0.40);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background:
        linear-gradient(90deg, rgba(240, 120, 32, 0.06) 1px, transparent 1px),
        linear-gradient(rgba(240, 120, 32, 0.04) 1px, transparent 1px),
        var(--bg);
    background-size: 42px 42px;
    min-height: 100vh;
}

a {
    color: inherit;
}

button,
input,
textarea,
select {
    font: inherit;
}

.app-shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding: 24px;
    background: var(--night);
    color: #f9f5ed;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 20;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-mark,
.icon-btn {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
}

.brand-logo {
    width: 120px;
    height: auto;
    display: block;
    /* siyai logo has white bg; invert slightly in dark if needed */
    filter: brightness(1);
}

body.dark .brand-logo {
    filter: brightness(0) invert(1);
}

.brand-mark {
    background: var(--brand);
    color: #ffffff;
}

.brand strong,
.brand small {
    display: block;
}

.brand small {
    color: #a9b7ad;
    margin-top: 2px;
}

.main-nav {
    display: grid;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding: 0 12px;
    border-radius: var(--radius);
    text-decoration: none;
    color: #c8d2ca;
    border: 1px solid transparent;
}

.nav-link i {
    width: 18px;
    text-align: center;
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

.sidebar-footer {
    margin-top: auto;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    color: #c8d2ca;
    font-size: 0.88rem;
}

.workspace {
    min-width: 0;
    padding: 22px clamp(18px, 4vw, 48px) 48px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0 18px;
    background: linear-gradient(to bottom, var(--bg) 75%, transparent);
}

.search-box {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 0 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.search-box input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
}

.icon-btn {
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
}

.icon-btn:hover,
.topbar-cta:hover,
.btn:hover {
    transform: translateY(-1px);
}

.icon-btn.danger {
    color: var(--accent);
}

.topbar-cta,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 44px;
    padding: 0 16px;
    border-radius: var(--radius);
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    white-space: nowrap;
}

.topbar-cta,
.btn.primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 12px 24px rgba(240, 120, 32, 0.22);
}

.btn.quiet {
    background: var(--surface);
    color: var(--ink);
    border-color: var(--line);
}

.page {
    display: none;
    animation: lift 0.28s ease both;
}

.page.active {
    display: block;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(420px, 0.95fr) minmax(420px, 1.05fr);
    gap: clamp(18px, 3vw, 34px);
    align-items: stretch;
    min-height: auto;
}

.hero-copy,
.institute-brief,
.learning-console,
.panel-form,
.admin-preview,
.learning-plan,
.profile-panel,
.contact-panel,
.training-detail {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-copy {
    padding: clamp(30px, 4vw, 52px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.78rem;
}

h3,
p {
    overflow-wrap: break-word;
}

h1,
h2 {
    margin: 0;
    line-height: 1.08;
    letter-spacing: 0;
    overflow-wrap: normal;
    word-break: normal;
    hyphens: none;
}

h1 {
    max-width: 780px;
    font-size: clamp(2.45rem, 4.2vw, 4.25rem);
}

h2 {
    max-width: 760px;
    font-size: clamp(1.9rem, 4vw, 3.4rem);
}

h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.hero-lead {
    max-width: 720px;
    color: var(--muted);
    font-size: 1.08rem;
    margin: 22px 0;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-proof {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.hero-proof span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
    color: var(--muted);
    font-size: 0.88rem;
}

.hero-proof strong {
    color: var(--accent);
}

.learning-console {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--night);
    color: #f0f0f0;
}

.institute-brief {
    display: grid;
    gap: 18px;
    align-content: stretch;
    padding: clamp(22px, 4vw, 34px);
}

.brief-top {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.brief-mark {
    width: 50px;
    height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: var(--radius);
    color: #ffffff;
    background: var(--accent);
}

.brief-top p {
    margin: 0;
    color: var(--muted);
}

.brief-stack {
    display: grid;
    gap: 12px;
    align-content: stretch;
}

.brief-stack article {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    min-height: 86px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
}

.brief-stack strong {
    color: var(--accent);
}

.console-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.console-header span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
}

.console-header span:nth-child(2) {
    background: var(--amber);
}

.console-header span:nth-child(3) {
    background: var(--accent);
}

.console-header strong {
    margin-left: auto;
    font-size: 0.9rem;
}

.console-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 18px;
    height: 100%;
}

.metric,
.progress-panel,
.activity-feed {
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    padding: 16px;
}

.metric small {
    display: block;
    color: #a9b7ad;
    margin-bottom: 8px;
}

.metric strong {
    font-size: 1.2rem;
}

.progress-panel,
.activity-feed {
    grid-column: 1 / -1;
}

.progress-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.bar {
    height: 10px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    overflow: hidden;
}

.bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--amber), var(--accent));
}

.activity-feed p {
    margin: 10px 0;
    color: #dbe5dc;
}

.activity-feed i {
    color: var(--amber);
    margin-right: 8px;
}

.audience-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    margin: 24px 0 48px;
}

.audience-strip article,
.info-card,
.course-card,
.compact-item {
    background: var(--surface-strong);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.audience-strip article {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 74px;
    padding: 14px;
    color: var(--muted);
}

.audience-strip i {
    color: var(--accent);
}

.audience-cards article {
    align-items: flex-start;
    flex-direction: column;
    min-height: 190px;
}

.audience-cards i {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: #ffffff;
    background: var(--accent);
}

.audience-cards h3 {
    color: var(--ink);
    margin: 4px 0 0;
}

.audience-cards p {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.section-heading {
    margin: 12px 0 22px;
}

.method-grid,
.course-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.info-card,
.course-card {
    padding: 18px;
}

.number {
    color: var(--amber);
    font-weight: 800;
}

.info-card p,
.course-card p,
.learning-plan p,
.contact-panel p {
    color: var(--muted);
}

.home-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    margin-top: 28px;
    padding: clamp(22px, 4vw, 34px);
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--night);
    color: #f8f1e6;
    box-shadow: var(--shadow);
}

.home-cta h2 {
    max-width: 780px;
    font-size: clamp(1.6rem, 3vw, 2.5rem);
}

.home-cta .eyebrow {
    color: #F07820;
}

.login-layout,
.auth-grid,
.admin-grid,
.student-grid,
.student-dashboard,
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.7fr);
    gap: 18px;
    align-items: start;
}

.auth-grid {
    grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
}

.role-tabs,
.training-switch,
.catalog-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.role-tab,
.training-option,
.filter-pill {
    min-height: 42px;
    padding: 0 14px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
}

.role-tab.active,
.training-option.active,
.filter-pill.active {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}

.panel-form,
.login-note,
.admin-preview,
.learning-plan,
.profile-panel,
.contact-panel,
.training-detail {
    padding: 20px;
}

.panel-form h3 {
    margin-bottom: 16px;
}

.login-note {
    background: var(--night);
    color: #f8f1e6;
    border-radius: var(--radius);
    min-height: 210px;
}

.login-note p {
    color: #c8d2ca;
}

.form-row {
    display: grid;
    gap: 7px;
    margin-bottom: 14px;
}

.form-row label {
    font-weight: 700;
    font-size: 0.9rem;
}

.form-row input,
.form-row textarea,
.form-row select {
    width: 100%;
    border: 1px solid var(--line);
    background: var(--surface-strong);
    color: var(--ink);
    border-radius: var(--radius);
    min-height: 44px;
    padding: 10px 12px;
    outline: 0;
}

.form-row textarea {
    resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(240, 120, 32, 0.18);
}

.form-split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.form-note {
    min-height: 22px;
    color: var(--muted);
    margin-bottom: 0;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.compact-list {
    display: grid;
    gap: 10px;
}

.compact-item {
    padding: 12px;
}

.compact-item small,
.course-meta,
.tag-line {
    color: var(--muted);
}

.course-card {
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.course-card .course-icon {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    border-radius: var(--radius);
    background: var(--accent);
    margin-bottom: 14px;
}

.course-meta,
.tag-line {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 16px;
}

.course-meta span,
.tag-line span {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 5px 8px;
    font-size: 0.78rem;
}

#courseCount {
    margin-left: auto;
    color: var(--muted);
    align-self: center;
}

.learning-plan {
    min-height: 320px;
}

.student-dashboard {
    grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
}

.student-dashboard .learning-plan {
    grid-column: 1 / -1;
}

.profile-topline {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 18px;
}

.avatar {
    width: 54px;
    height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--amber);
    color: #17211b;
    font-weight: 800;
    font-size: 1.4rem;
}

.profile-topline p {
    margin: 0;
    color: var(--muted);
}

.profile-grid {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
}

.profile-grid article {
    display: grid;
    gap: 5px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
}

.profile-grid small {
    color: var(--muted);
}

.plan-steps {
    display: grid;
    gap: 10px;
    margin-top: 16px;
}

.plan-steps li {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    list-style: none;
}

.training-detail {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 20px;
}

.training-detail ul {
    padding-left: 18px;
    color: var(--muted);
}

.timeline {
    display: grid;
    gap: 10px;
}

.timeline article {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
}

.contact-list {
    display: grid;
    gap: 12px;
    padding: 0;
    list-style: none;
    color: var(--muted);
}

.contact-list i {
    width: 24px;
    color: var(--accent);
}

.mini-map {
    display: flex;
    gap: 12px;
    align-items: center;
    min-height: 120px;
    padding: 18px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(240, 120, 32, 0.12), rgba(240, 120, 32, 0.06));
    color: var(--muted);
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.community-card {
    min-height: 260px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
    box-shadow: var(--shadow);
}

.community-card i {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: #ffffff;
    background: var(--accent);
    margin-bottom: 16px;
}

.community-card p {
    color: var(--muted);
}

.toast {
    position: fixed;
    right: 18px;
    bottom: 18px;
    max-width: min(380px, calc(100vw - 36px));
    padding: 12px 14px;
    border-radius: var(--radius);
    background: var(--night);
    color: #ffffff;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 40;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.mobile-only {
    display: none;
}

@keyframes lift {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1180px) {
    .method-grid,
    .course-grid,
    .community-grid,
    .audience-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-grid,
    .training-detail {
        grid-template-columns: 1fr;
        min-height: auto;
    }
}

@media (max-width: 860px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(310px, 88vw);
        transform: translateX(-105%);
        transition: transform 0.22s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-only {
        display: inline-flex;
    }

    .topbar-cta {
        display: none;
    }

    .login-layout,
    .auth-grid,
    .admin-grid,
    .student-grid,
    .student-dashboard,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .home-cta {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 620px) {
    .workspace {
        padding: 14px 14px 34px;
    }

    .topbar {
        align-items: stretch;
    }

    .search-box {
        min-width: 0;
    }

    .hero-copy {
        padding: 24px;
    }

    .method-grid,
    .course-grid,
    .community-grid,
    .audience-strip,
    .console-grid,
    .form-split {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2.35rem;
    }
}