/* =========================================================
   GODSWAY SACKEY | PROFILE
   Dual-theme design system matching the free-apps platform
   Civic (default) + Portfolio (toggle) — same switching logic
   ========================================================= */

/* =========================================================
   DESIGN TOKENS — CIVIC THEME (Default)
   ========================================================= */
:root {
    --bg-main:         #F4F1E8;
    --color-card:      #FFFFFF;
    --color-border:    #D8D5CC;

    --text-main:       #17211F;
    --color-muted:     rgba(23, 33, 31, 0.60);

    --color-primary:   #102A2C;
    --color-accent:    #0A7C75;
    --color-utility:   #326B8C;
    --color-highlight: #E09F3E;

    --accent-glow:     rgba(10, 124, 117, 0.12);

    --font-heading:    'IBM Plex Sans', sans-serif;
    --font-body:       'IBM Plex Sans', sans-serif;

    --radius-card:     0.5rem;
    --radius-btn:      0.25rem;
    --shadow-card:     0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
    --shadow-md:       0 8px 32px rgba(0,0,0,0.10);

    --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
    --t-fast:    0.18s var(--ease-out);
    --t-norm:    0.32s var(--ease-out);
    --t-theme:   0.40s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================================
   PORTFOLIO / COMMONS THEME (Toggled via JS)
   ========================================================= */
:root.theme-commons {
    --bg-main:         #F4F1EA;
    --color-card:      #FFFFFF;
    --color-border:    rgba(39, 35, 29, 0.15);

    --text-main:       #27231D;
    --color-muted:     rgba(39, 35, 29, 0.60);

    --color-primary:   #27231D;
    --color-accent:    #10B981;
    --color-utility:   #D97757;
    --color-highlight: #D97757;

    --accent-glow:     rgba(16, 185, 129, 0.12);

    --font-heading:    'Lora', serif;
    --font-body:       'Work Sans', sans-serif;

    --radius-card:     1rem;
    --radius-btn:      0.5rem;
    --shadow-card:     0 10px 24px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.03);
    --shadow-md:       0 12px 40px rgba(0,0,0,0.10);
}

/* =========================================================
   RESET & GLOBAL
   ========================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    background: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background var(--t-theme), color var(--t-theme);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--t-fast);
}

button { font: inherit; cursor: pointer; }

::selection { background: var(--color-accent); color: #fff; }

:focus-visible { outline: 2.5px solid var(--color-accent); outline-offset: 3px; }

.skip-link {
    position: absolute;
    top: -100px;
    left: 20px;
    background: var(--color-accent);
    color: #fff;
    padding: 12px 20px;
    font-weight: 800;
    font-size: 13px;
    border-radius: 10px;
    z-index: 1000;
    transition: top 0.2s ease;
}

.skip-link:focus { top: 20px; }

/* =========================================================
   PAGE CONTAINER
   ========================================================= */
.page {
    width: min(1520px, calc(100% - 50px));
    height: 100dvh;
    margin: 0 auto;
    padding: 24px 0 14px;
    display: grid;
    grid-template-rows: minmax(0, 1fr) 40px;
    gap: 12px;
}

/* =========================================================
   PROFILE CARD
   ========================================================= */
.profile-card {
    min-height: 0;
    overflow: hidden;
    background: var(--color-card);
    border-radius: 24px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    transition: background var(--t-theme), border-color var(--t-theme), box-shadow var(--t-theme);
}

/* =========================================================
   TOP BAR
   ========================================================= */
.topbar {
    min-height: 90px;
    padding: 14px 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-card);
    transition: background var(--t-theme), border-color var(--t-theme);
}

/* =========================================================
   IDENTITY
   ========================================================= */
.identity {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
    text-decoration: none;
}

.identity > div { min-width: 0; }

.portrait-ring {
    width: 62px;
    height: 62px;
    flex: 0 0 62px;
    padding: 3.5px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 6px var(--accent-glow);
    transition: background var(--t-theme), box-shadow var(--t-theme);
}

.portrait {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: 50%;
}

.name {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 22px;
    line-height: 1.05;
    font-weight: 900;
    letter-spacing: -0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color var(--t-theme);
}

.identity-role {
    margin-top: 5px;
    color: var(--color-accent);
    font-size: 12px;
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: 0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color var(--t-theme);
}

/* =========================================================
   NAVIGATION / TABS
   ========================================================= */
.tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px;
    border-radius: 12px;
    background: var(--bg-main);
    border: 1px solid var(--color-border);
    transition: background var(--t-theme), border-color var(--t-theme);
}

.tab-btn {
    appearance: none;
    border: 0;
    cursor: pointer;
    padding: 11px 18px;
    border-radius: 9px;
    background: transparent;
    color: var(--color-muted);
    font-family: var(--font-heading);
    font-size: 11.5px;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
}

.tab-btn:hover { color: var(--color-accent); }

.tab-btn.active {
    color: var(--color-primary);
    background: var(--color-card);
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.tab-btn:focus-visible { outline: 2.5px solid var(--color-accent); outline-offset: 2px; }

/* =========================================================
   THEME TOGGLE (matching free project's toggle UI)
   ========================================================= */
.theme-toggle-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 20px;
    border-left: 1px solid var(--color-border);
    flex-shrink: 0;
    transition: border-color var(--t-theme);
}

.theme-label {
    font-family: var(--font-heading);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-muted);
    white-space: nowrap;
    transition: color var(--t-theme);
}

.theme-label.active-label {
    color: var(--text-main);
    font-weight: 900;
}

#profile-theme-toggle {
    position: relative;
    width: 44px;
    height: 24px;
    border-radius: 999px;
    background: var(--color-border);
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    transition: background var(--t-theme);
}

#profile-theme-toggle:hover { background: var(--color-accent); }

#profile-theme-knob {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    transition: transform 0.28s var(--ease-out), background var(--t-theme);
    pointer-events: none;
}

/* =========================================================
   MOBILE MENU TOGGLE BUTTON
   ========================================================= */
.mobile-menu-btn {
    display: none;
    appearance: none;
    border: 1px solid var(--color-border);
    background: var(--bg-main);
    color: var(--color-primary);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background var(--t-fast), border-color var(--t-fast);
    flex-shrink: 0;
    z-index: 10;
}

.mobile-menu-btn:hover {
    background: var(--accent-glow);
    border-color: var(--color-accent);
}

.mobile-menu-btn:focus-visible { outline: 2.5px solid var(--color-accent); outline-offset: 2px; }

.hamburger-box {
    width: 20px;
    height: 14px;
    position: relative;
    display: inline-block;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    width: 20px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    position: absolute;
    transition: transform 220ms ease, top 220ms ease, background-color 220ms ease;
}

.hamburger-inner { top: 50%; transform: translateY(-50%); }

.hamburger-inner::before,
.hamburger-inner::after { content: ""; left: 0; }

.hamburger-inner::before { top: -6px; }
.hamburger-inner::after  { top:  6px; }

.mobile-menu-btn.active .hamburger-inner { background-color: transparent; }
.mobile-menu-btn.active .hamburger-inner::before { top: 0; transform: rotate(45deg);  background-color: var(--color-primary); }
.mobile-menu-btn.active .hamburger-inner::after  { top: 0; transform: rotate(-45deg); background-color: var(--color-primary); }

/* =========================================================
   MOBILE NAV DRAWER & BACKDROP
   ========================================================= */
.mobile-nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(16, 42, 44, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 280ms ease;
}

.mobile-nav-backdrop.open { opacity: 1; pointer-events: auto; }

.mobile-nav {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(340px, 86vw);
    background: var(--color-card);
    z-index: 999;
    box-shadow: -12px 0 40px rgba(0,0,0,0.12);
    display: flex;
    flex-direction: column;
    padding: 24px 20px 28px;
    transform: translateX(100%);
    transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    border-left: 1px solid var(--color-border);
}

.mobile-nav.open { transform: translateX(0); }

body.menu-open { overflow: hidden; }

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 18px;
}

.mobile-nav-user { display: flex; align-items: center; gap: 12px; }

.mobile-nav-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2.5px solid var(--color-accent);
    background: var(--accent-glow);
    transition: border-color var(--t-theme);
}

.mobile-nav-name {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1.15;
}

.mobile-nav-sub {
    font-size: 11px;
    color: var(--color-accent);
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-top: 2px;
}

.mobile-nav-close {
    appearance: none;
    border: 1px solid var(--color-border);
    background: var(--bg-main);
    width: 36px;
    height: 36px;
    border-radius: 10px;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--t-fast), color var(--t-fast);
}

.mobile-nav-close:hover { background: var(--accent-glow); color: var(--color-accent); }

.mobile-nav-links { display: flex; flex-direction: column; gap: 10px; flex: 1; }

.mobile-nav-links [data-screen="expertise"]   { order: 1; }
.mobile-nav-links [data-screen="areas"]       { order: 2; }
.mobile-nav-links [data-screen="research"]    { order: 3; }
.mobile-nav-links [data-screen="background"]  { order: 4; }

.mobile-tab-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 16px;
    border-radius: 12px;
    background: var(--bg-main);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-primary);
    transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}

.mobile-tab-btn:hover {
    background: var(--accent-glow);
    border-color: var(--color-accent);
    transform: translateX(2px);
}

.mobile-tab-btn.active {
    background: var(--accent-glow);
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(10, 124, 117, 0.08);
}

:root.theme-commons .mobile-tab-btn.active {
    box-shadow: 0 4px 16px rgba(217, 119, 87, 0.12);
}

.mobile-tab-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--color-card);
    color: var(--color-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
    transition: background var(--t-fast), color var(--t-fast);
}

.mobile-tab-btn.active .mobile-tab-icon { background: var(--color-accent); color: #fff; }

.mobile-tab-info { flex: 1; min-width: 0; }

.mobile-tab-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
}

.mobile-tab-btn.active .mobile-tab-label { color: var(--color-accent); }

.mobile-tab-desc { font-size: 11px; color: var(--color-muted); margin-top: 2px; }

.mobile-tab-arrow {
    color: var(--color-border);
    font-size: 16px;
    font-weight: 700;
    transition: transform var(--t-fast), color var(--t-fast);
}

.mobile-tab-btn:hover .mobile-tab-arrow,
.mobile-tab-btn.active .mobile-tab-arrow {
    color: var(--color-accent);
    transform: translateX(3px);
}

.mobile-nav-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.mobile-nav-motto {
    font-family: var(--font-heading);
    font-size: 10.5px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.mobile-nav-legal { font-size: 12px; color: var(--color-muted); }
.mobile-nav-legal a { color: var(--color-primary); font-weight: 600; text-decoration: none; }
.mobile-nav-legal a:hover { color: var(--color-accent); }

/* =========================================================
   MAIN SCREEN — two-column no-scroll split
   ========================================================= */
.screen {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
}

/* =========================================================
   LEFT VISUAL SIDE
   ========================================================= */
.visual-side {
    min-width: 0;
    min-height: 0;
    padding: 24px 24px 0;
    background: var(--color-primary);
    display: grid;
    grid-template-rows: minmax(0, 1fr) 54px;
    transition: background var(--t-theme);
}

.visual-frame {
    position: relative;
    min-height: 0;
    overflow: hidden;
    background: rgba(0,0,0,0.12);
    border-radius: var(--radius-card);
    border: 1.5px solid rgba(255, 255, 255, 0.14);
    transition: border-color var(--t-theme), border-radius var(--t-theme), box-shadow var(--t-theme);
}

.screen-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: opacity 180ms ease, transform 350ms ease;
}

.visual-side:hover .screen-image { transform: scale(1.015); }

.visual-frame::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 22%;
    pointer-events: none;
    background: linear-gradient(transparent, rgba(4, 25, 45, 0.40));
}

.visual-caption {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-family: var(--font-heading);
    font-size: 11.5px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    text-align: center;
    opacity: 0.95;
    transition: color var(--t-theme);
}

/* =========================================================
   RIGHT CONTENT SIDE
   ========================================================= */
.content-side {
    min-width: 0;
    min-height: 0;
    padding: clamp(32px, 3.8vh, 56px) clamp(38px, 4.2vw, 72px);
    display: flex;
    align-items: center;
    background: var(--color-card);
    transition: background var(--t-theme);
}

.panel {
    display: none;
    width: 100%;
    animation: reveal 180ms ease;
}

.panel.active { display: block; }

@keyframes reveal {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   HEADINGS / COPY
   ========================================================= */
.eyebrow {
    margin-bottom: 16px;
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-size: 12px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: color var(--t-theme);
}

.screen-title {
    max-width: 700px;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: clamp(38px, 3.3vw, 54px);
    line-height: 1.04;
    font-weight: 900;
    letter-spacing: -0.05em;
    transition: color var(--t-theme);
}

.screen-intro {
    max-width: 700px;
    margin-top: 20px;
    color: var(--color-muted);
    font-size: clamp(16px, 1.3vw, 19px);
    line-height: 1.55;
    font-weight: 450;
    transition: color var(--t-theme);
}

.content-rule {
    width: 60px;
    height: 3.5px;
    margin: 24px 0;
    border-radius: 999px;
    background: var(--color-accent);
    transition: background var(--t-theme);
}

/* =========================================================
   COMMONS THEME ENHANCEMENTS (ORANGE ACCENTS & IMAGE FRAMING)
   Matches the warm terracotta orange (#D97757) and dark coffee
   (#27231D) palette from the free-apps platform.
   ========================================================= */
:root.theme-commons .screen-title {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.12;
}

/* Image framing with orange edges */
:root.theme-commons .visual-frame {
    border: 2.5px solid var(--color-utility);
    box-shadow: 0 0 0 1px rgba(217, 119, 87, 0.25), 0 12px 36px rgba(0, 0, 0, 0.35);
}

:root.theme-commons .visual-side:hover .visual-frame {
    border-color: #E2886A;
    box-shadow: 0 0 0 2px rgba(217, 119, 87, 0.35), 0 16px 40px rgba(0, 0, 0, 0.40);
}

:root.theme-commons .portrait-ring {
    background: var(--color-utility);
    box-shadow: 0 0 0 6px rgba(217, 119, 87, 0.20);
}

:root.theme-commons .mobile-nav-avatar {
    border-color: var(--color-utility);
}

/* Caption on dark coffee panel remains crisp white */
:root.theme-commons .visual-caption {
    color: #FFFFFF;
}

/* Rich orange text accents */
:root.theme-commons .identity-role {
    color: var(--color-utility);
}

:root.theme-commons .eyebrow {
    color: var(--color-utility);
    letter-spacing: 0.16em;
}

:root.theme-commons .content-rule {
    background: var(--color-utility);
}

:root.theme-commons .section-label {
    color: var(--color-utility);
}

:root.theme-commons .approach-copy strong {
    color: var(--color-utility);
}

:root.theme-commons .footer-motto {
    color: var(--color-utility);
}

:root.theme-commons .footer-links a:hover {
    color: var(--color-utility);
}

:root.theme-commons .tab-btn:hover {
    color: var(--color-utility);
}

:root.theme-commons .tab-btn.active {
    color: var(--color-utility);
}

:root.theme-commons .theme-label.active-label {
    color: var(--color-utility);
}

:root.theme-commons #profile-theme-toggle {
    background: var(--color-utility);
}

:root.theme-commons #profile-theme-toggle:hover {
    background: #E2886A;
}

:root.theme-commons #profile-theme-knob {
    background: #FFFFFF;
}

:root.theme-commons .mobile-nav-sub {
    color: var(--color-utility);
}

:root.theme-commons .mobile-nav-motto {
    color: var(--color-utility);
}

:root.theme-commons .mobile-tab-btn.active {
    border-color: var(--color-utility);
    background: rgba(217, 119, 87, 0.08);
}

:root.theme-commons .mobile-tab-btn.active .mobile-tab-label {
    color: var(--color-utility);
}

:root.theme-commons .mobile-tab-btn.active .mobile-tab-icon {
    background: var(--color-utility);
    color: #FFFFFF;
}

:root.theme-commons .mobile-tab-arrow {
    color: var(--color-utility);
}

:root.theme-commons .mobile-tab-btn:hover .mobile-tab-arrow {
    color: var(--color-utility);
}

:root.theme-commons .mobile-menu-btn:hover {
    background: rgba(217, 119, 87, 0.10);
    border-color: var(--color-utility);
}

/* =========================================================
   UNIVERSAL BULLET SYSTEM
   ========================================================= */
.bullet-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
    row-gap: 20px;
}

.bullet-item {
    position: relative;
    padding-left: 22px;
}

.bullet-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 7px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-highlight);
    box-shadow: 0 0 0 2px rgba(224, 159, 62, 0.25);
    transition: background var(--t-theme), box-shadow var(--t-theme);
}

:root.theme-commons .bullet-item::before {
    background: var(--color-utility);
    box-shadow: 0 0 0 2px rgba(217, 119, 87, 0.22);
}

.bullet-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 15px;
    line-height: 1.35;
    font-weight: 800;
    transition: color var(--t-theme);
}

.bullet-description {
    margin-top: 5px;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.48;
    font-weight: 500;
}

.bullet-grid.simple { row-gap: 18px; }
.bullet-grid.simple .bullet-title { font-size: 15.5px; font-weight: 750; }

.bullet-grid.application-areas { row-gap: 13px; }
.bullet-grid.application-areas .bullet-title { font-size: 14.5px; }

/* =========================================================
   BACKGROUND SECTION
   ========================================================= */
.background-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 40px;
}

.section-label {
    margin-bottom: 16px;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 12px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    transition: color var(--t-theme);
}

.degree-list { grid-template-columns: 1fr; row-gap: 16px; }

.degree-list .bullet-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--color-primary);
}

.approach-copy {
    color: var(--color-muted);
    font-size: 15px;
    line-height: 1.6;
    transition: color var(--t-theme);
}

.approach-copy strong {
    color: var(--color-primary);
    font-weight: 850;
    transition: color var(--t-theme);
}

/* =========================================================
   FOOTER
   ========================================================= */
.page-footer {
    min-height: 40px;
    padding: 0 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 13px;
    transition: border-color var(--t-theme), color var(--t-theme);
}

.footer-motto {
    font-family: var(--font-heading);
    color: var(--color-accent);
    font-weight: 800;
    letter-spacing: 0.02em;
    font-size: 12px;
    transition: color var(--t-theme);
}

.footer-links { display: flex; align-items: center; gap: 18px; font-weight: 600; }
.footer-links a:hover { color: var(--color-accent); text-decoration: underline; }

/* =========================================================
   LEGAL / GENERIC ARTICLE CONTAINER
   ========================================================= */
.legal-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 24px 0;
    color: var(--color-muted);
    font-size: 15.5px;
    line-height: 1.68;
}

.legal-content h1 {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 900;
    margin-bottom: 14px;
}

.legal-content h2 {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    margin: 28px 0 10px;
}

.legal-content p { margin-bottom: 16px; }
.legal-content ul { padding-left: 24px; margin-bottom: 18px; }
.legal-content li { margin-bottom: 8px; }

/* =========================================================
   RESPONSIVENESS: SHORT LAPTOPS
   ========================================================= */
@media (min-width: 1001px) and (max-height: 780px) {
    .page { padding-top: 12px; grid-template-rows: minmax(0, 1fr) 34px; gap: 8px; }
    .topbar { min-height: 74px; padding: 10px 30px; }
    .portrait-ring { width: 52px; height: 52px; flex-basis: 52px; }
    .name { font-size: 19px; }
    .identity-role { margin-top: 4px; font-size: 10.5px; }
    .tab-btn { padding: 10px 14px; font-size: 10.5px; }
    .visual-side { padding: 18px 18px 0; grid-template-rows: minmax(0, 1fr) 42px; }
    .visual-caption { font-size: 9.5px; }
    .content-side { padding: 24px 48px; }
    .eyebrow { margin-bottom: 12px; font-size: 10.5px; }
    .screen-title { font-size: clamp(34px, 2.9vw, 46px); }
    .screen-intro { margin-top: 14px; font-size: 15px; line-height: 1.48; }
    .content-rule { margin: 16px 0; }
    .bullet-grid { column-gap: 28px; row-gap: 12px; }
    .bullet-grid.simple { row-gap: 12px; }
    .bullet-grid.application-areas { row-gap: 9px; }
    .bullet-title { font-size: 13.5px; }
    .bullet-grid.simple .bullet-title { font-size: 13.8px; }
    .bullet-grid.application-areas .bullet-title { font-size: 13px; }
    .bullet-description { margin-top: 3px; font-size: 11.5px; line-height: 1.38; }
    .background-grid { gap: 30px; }
    .approach-copy { font-size: 13.5px; line-height: 1.5; }
}

/* =========================================================
   RESPONSIVENESS: TABLET & MOBILE (<= 860px)
   ========================================================= */
@media (max-width: 860px) {
    html, body { height: auto; }
    body { overflow-y: auto; }

    .page {
        width: min(800px, calc(100% - 24px));
        height: auto;
        min-height: 100dvh;
        padding: 14px 0 20px;
        display: flex;
        flex-direction: column;
    }

    .profile-card { display: block; border-radius: 24px; flex: 1; }

    .topbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 16px 22px;
        min-height: 76px;
    }

    /* Hide desktop tabs and theme toggle; show mobile menu button */
    .tabs,
    .theme-toggle-wrap { display: none !important; }

    .mobile-menu-btn { display: flex; }

    .screen { display: block; }

    .visual-side { height: 420px; padding: 18px 18px 0; }

    .content-side { padding: 36px 30px 44px; }

    .page-footer {
        margin-top: 18px;
        padding: 14px 10px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
}

/* =========================================================
   RESPONSIVENESS: SMARTPHONES (<= 620px)
   ========================================================= */
@media (max-width: 620px) {
    .page { width: calc(100% - 16px); padding: 10px 0 18px; display: flex; flex-direction: column; }
    .profile-card { border-radius: 20px; flex: 1; }
    .topbar { padding: 14px 14px; min-height: 68px; gap: 12px; }
    .identity { gap: 12px; }
    .portrait-ring { width: 50px; height: 50px; flex-basis: 50px; padding: 2.5px; }
    .name { font-size: 18.5px; }
    .identity-role { font-size: 10.5px; margin-top: 2px; }
    .visual-side { height: 300px; padding: 12px 12px 0; grid-template-rows: minmax(0, 1fr) 40px; }
    .visual-caption { font-size: 8.5px; letter-spacing: 0.16em; }
    .content-side { padding: 26px 18px 34px; }
    .screen-title { font-size: clamp(28px, 8.5vw, 38px); }
    .screen-intro { font-size: 15px; line-height: 1.48; }
    .bullet-grid, .background-grid { grid-template-columns: 1fr; }
    .bullet-grid { row-gap: 13px; }
    .background-grid { gap: 28px; }

    .page-footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
        justify-content: center;
        gap: 8px;
        padding: 14px 8px 6px;
        margin-top: 14px;
        width: 100%;
    }

    .footer-motto { text-align: center; font-size: 12px; letter-spacing: 0.04em; }
    .footer-links { justify-content: center; flex-wrap: wrap; gap: 12px; font-size: 12px; }
}

/* =========================================================
   EXTRA SMALL MOBILE (< 360px)
   ========================================================= */
@media (max-width: 360px) {
    .topbar { padding: 12px 10px; gap: 10px; }
    .portrait-ring { width: 44px; height: 44px; flex-basis: 44px; }
    .name { font-size: 16.5px; }
    .identity-role { font-size: 9.5px; }
    .mobile-menu-btn { width: 38px; height: 38px; border-radius: 10px; }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}