/*
 * School Scheduler AG — Glass Orbit visual layer
 * Loaded after app.css so existing product behavior remains intact.
 */
:root {
    --font-display: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
    --ink-950: #0b1330;
    --ink-800: #202b4d;
    --ink-650: #4f5d7d;
    --ink-500: #6f7b98;
    --ink-300: #aeb8cd;
    --ink-200: #d5dbea;
    --ink-100: #e8ecf5;
    --canvas: #f4f6fb;
    --surface: #ffffff;
    --surface-muted: #edf1f8;
    --surface-blue: #e9eeff;
    --accent: #3158e8;
    --accent-hover: #2444bd;
    --accent-soft: #e1e8ff;
    --teal: #087d8d;
    --teal-soft: #ddf3f4;
    --success: #18724c;
    --success-soft: #dcf3e7;
    --warning: #9b5a0c;
    --warning-soft: #fff0d5;
    --danger: #b62f46;
    --danger-soft: #ffe5ea;
    --glass-fill: rgb(255 255 255 / 72%);
    --glass-border: rgb(255 255 255 / 78%);
    --glass-shadow: 0 12px 36px rgb(28 43 88 / 12%);
    --shader-navy: #07112e;
    --shader-blue: #3b5cff;
    --shader-cyan: #4dd6ef;
    --shader-violet: #7850e8;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-float: 0 16px 42px rgb(22 38 83 / 13%);
    --ease-out: cubic-bezier(.23, 1, .32, 1);
    --ease-in-out: cubic-bezier(.77, 0, .175, 1);
}

html[data-theme="dark"] {
    --ink-950: #f2f5ff;
    --ink-800: #d4dbef;
    --ink-650: #a7b1cd;
    --ink-500: #8995b5;
    --ink-300: #5a6685;
    --ink-200: #3b4664;
    --ink-100: #293451;
    --canvas: #080e20;
    --surface: #111a31;
    --surface-muted: #17223b;
    --surface-blue: #192750;
    --accent: #87a2ff;
    --accent-hover: #b3c2ff;
    --accent-soft: #22346b;
    --teal: #62d3db;
    --teal-soft: #153e45;
    --success: #71d6a7;
    --success-soft: #173d31;
    --warning: #f4bd68;
    --warning-soft: #483515;
    --danger: #ff8ca0;
    --danger-soft: #4b1e2a;
    --glass-fill: rgb(16 25 49 / 72%);
    --glass-border: rgb(169 188 255 / 16%);
    --glass-shadow: 0 16px 42px rgb(0 0 0 / 32%);
}

html {
    background: var(--canvas);
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 85% -10%, rgb(75 104 255 / 10%), transparent 34rem),
        radial-gradient(circle at 0% 68%, rgb(36 196 216 / 8%), transparent 30rem),
        var(--canvas);
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    letter-spacing: -.03em;
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}

.ambient-background {
    position: fixed;
    z-index: -1;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.ambient-background::before,
.ambient-background::after {
    position: absolute;
    width: 28rem;
    height: 28rem;
    border-radius: 50%;
    content: "";
    filter: blur(90px);
    opacity: .14;
}

.ambient-background::before {
    top: -18rem;
    right: 4vw;
    background: var(--shader-blue);
}

.ambient-background::after {
    bottom: -21rem;
    left: 8vw;
    background: var(--shader-cyan);
}

.brand {
    gap: 10px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    padding: 0;
    overflow: visible;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}

.brand-mark img {
    width: 100%;
    height: 100%;
    filter: saturate(1.04);
    transition: transform 180ms var(--ease-out), filter 180ms ease;
}

@media (hover: hover) and (pointer: fine) {
    .brand:hover .brand-mark img {
        filter: saturate(1.16) brightness(1.03);
        transform: rotate(-3deg) scale(1.04);
    }
}

.button,
.secondary-button,
.table-action,
.public-nav__link,
.sidebar__link,
.sidebar__logout,
.mobile-menu-button,
.public-theme-toggle {
    transition:
        transform 150ms var(--ease-out),
        color 170ms ease,
        background-color 170ms ease,
        border-color 170ms ease,
        box-shadow 170ms ease;
}

.button:active,
.secondary-button:active,
.table-action:active,
.public-nav__link:active,
.sidebar__link:active,
.sidebar__logout:active,
.mobile-menu-button:active,
.public-theme-toggle:active {
    transform: scale(.97);
}

.button {
    border: 0;
    background: linear-gradient(135deg, #3158e8 0%, #4b69ef 62%, #7655dc 100%);
    box-shadow: 0 7px 14px rgb(49 88 232 / 22%);
}

.button:hover {
    box-shadow: 0 9px 18px rgb(49 88 232 / 28%);
    transform: translateY(-1px);
}

.secondary-button {
    background: color-mix(in srgb, var(--surface) 86%, transparent);
    border-color: color-mix(in srgb, var(--ink-200) 78%, transparent);
    box-shadow: 0 2px 6px rgb(20 35 73 / 5%);
}

.public-nav {
    position: relative;
    z-index: 60;
    min-height: 88px;
    width: min(1240px, calc(100% - 48px));
}

.public-nav__links {
    position: relative;
    isolation: isolate;
    padding: 7px;
    background: var(--glass-fill);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    box-shadow: var(--glass-shadow), inset 0 1px 0 rgb(255 255 255 / 28%);
    backdrop-filter: blur(18px) saturate(135%);
    -webkit-backdrop-filter: blur(18px) saturate(135%);
}

.public-nav__links[data-liquid-ready="true"] {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.public-nav__link {
    border-radius: 999px;
}

.public-theme-toggle {
    border-radius: 999px;
}

.public-main {
    width: min(1240px, calc(100% - 48px));
    padding-top: 22px;
}

/* Landing page */
.orbit-hero {
    position: relative;
    min-height: min(760px, calc(100dvh - 124px));
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, .88fr) minmax(520px, 1.12fr);
    align-items: center;
    gap: clamp(32px, 5vw, 78px);
    padding: clamp(42px, 6vw, 86px);
    color: white;
    background: var(--shader-navy);
    border-radius: 16px;
    box-shadow: 0 24px 60px rgb(3 12 44 / 24%);
    isolation: isolate;
}

.shader-gradient-canvas {
    position: absolute;
    z-index: -2;
    inset: 0;
    width: 100%;
    height: 100%;
}

.shader-gradient-canvas[data-shader-fallback="true"] {
    background:
        radial-gradient(circle at 22% 64%, #1fc2de 0, transparent 36%),
        radial-gradient(circle at 72% 32%, #465dff 0, transparent 44%),
        radial-gradient(circle at 74% 100%, #7541dd 0, transparent 38%),
        #07112e;
}

.orbit-hero::after {
    position: absolute;
    z-index: -1;
    inset: 0;
    background: linear-gradient(96deg, rgb(4 12 42 / 58%) 0%, rgb(4 12 42 / 12%) 56%, rgb(4 12 42 / 32%) 100%);
    content: "";
    pointer-events: none;
}

.orbit-hero__copy {
    max-width: 610px;
}

.orbit-hero__signal {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 24px;
    color: rgb(236 243 255 / 86%);
    font-size: .82rem;
    font-weight: 750;
    letter-spacing: .02em;
}

.orbit-hero__signal::before {
    width: 8px;
    height: 8px;
    background: #72e8f5;
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgb(114 232 245 / 14%);
    content: "";
}

.orbit-hero h1 {
    max-width: 10.5ch;
    margin-bottom: 24px;
    color: white;
    font-size: clamp(3.15rem, 6.3vw, 5.8rem);
    font-weight: 760;
    letter-spacing: -.04em;
    line-height: .96;
}

.orbit-hero__lead {
    max-width: 58ch;
    margin-bottom: 30px;
    color: rgb(236 243 255 / 82%);
    font-size: clamp(1rem, 1.4vw, 1.14rem);
    line-height: 1.7;
}

.orbit-hero .button {
    background: white;
    color: #111d48;
    box-shadow: 0 10px 26px rgb(0 0 0 / 18%);
}

.orbit-hero .button:hover {
    color: #111d48;
}

.orbit-hero .secondary-button {
    color: white;
    background: rgb(255 255 255 / 8%);
    border-color: rgb(255 255 255 / 24%);
    box-shadow: none;
}

.orbit-hero .secondary-button:hover {
    background: rgb(255 255 255 / 14%);
    border-color: rgb(255 255 255 / 38%);
}

.orbit-hero__proof {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-top: 32px;
    color: rgb(225 234 255 / 72%);
    font-size: .77rem;
    font-weight: 700;
}

.orbit-hero__proof span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.orbit-hero__proof span::before {
    width: 4px;
    height: 4px;
    background: #69dbea;
    border-radius: 50%;
    content: "";
}

.schedule-artifact {
    position: relative;
    align-self: stretch;
    display: grid;
    align-content: center;
    min-width: 0;
    perspective: 1200px;
}

.schedule-artifact__shell {
    position: relative;
    overflow: hidden;
    background: rgb(250 252 255 / 92%);
    border: 1px solid rgb(255 255 255 / 72%);
    border-radius: 14px;
    box-shadow: 0 34px 80px rgb(0 0 0 / 30%);
    color: #132044;
    transform: rotateY(-4deg) rotateX(2deg);
    transform-origin: center;
}

.schedule-artifact__bar {
    display: flex;
    min-height: 58px;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 12px 16px;
    background: rgb(255 255 255 / 78%);
    border-bottom: 1px solid #dde3f2;
}

.schedule-artifact__bar strong {
    font-size: .92rem;
}

.schedule-artifact__bar span {
    color: #65718f;
    font-size: .72rem;
    font-weight: 700;
}

.artifact-controls {
    display: flex;
    gap: 6px;
}

.artifact-controls i {
    display: block;
    width: 8px;
    height: 8px;
    background: #cad2e4;
    border-radius: 50%;
}

.artifact-calendar {
    display: grid;
    grid-template-columns: 52px repeat(4, minmax(72px, 1fr));
    grid-template-rows: 42px repeat(7, 47px);
    background:
        linear-gradient(to right, transparent 51px, #e4e9f3 52px, transparent 53px),
        repeating-linear-gradient(to bottom, transparent 0, transparent 46px, #e7ebf4 47px);
}

.artifact-calendar__day,
.artifact-calendar__time {
    display: grid;
    place-items: center;
    color: #697591;
    font-size: .65rem;
    font-weight: 750;
}

.artifact-calendar__day {
    border-bottom: 1px solid #e2e7f1;
}

.artifact-calendar__block {
    z-index: 2;
    align-self: stretch;
    margin: 3px 4px;
    padding: 7px 8px;
    overflow: hidden;
    color: white;
    border-radius: 7px;
    box-shadow: 0 5px 12px rgb(28 46 94 / 18%);
    font-size: .62rem;
    font-weight: 760;
    line-height: 1.25;
}

.artifact-calendar__block small {
    display: block;
    margin-top: 3px;
    color: rgb(255 255 255 / 82%);
    font-size: .55rem;
    font-weight: 650;
}

.artifact-calendar__block--blue { background: #3158e8; }
.artifact-calendar__block--cyan { background: #07869b; }
.artifact-calendar__block--violet { background: #7247d6; }
.artifact-calendar__block--rose { background: #c43a62; }

.schedule-artifact__badge {
    position: absolute;
    right: -18px;
    bottom: 38px;
    display: grid;
    gap: 2px;
    min-width: 172px;
    padding: 13px 15px;
    color: #11204d;
    background: rgb(255 255 255 / 88%);
    border: 1px solid rgb(255 255 255 / 86%);
    border-radius: 12px;
    box-shadow: 0 18px 38px rgb(1 12 43 / 28%);
    backdrop-filter: blur(18px);
}

.schedule-artifact__badge strong {
    font-size: .78rem;
}

.schedule-artifact__badge span {
    color: #667391;
    font-size: .66rem;
    font-weight: 650;
}

.home-flow {
    display: grid;
    grid-template-columns: .86fr 1.14fr;
    gap: clamp(34px, 6vw, 84px);
    align-items: start;
    padding: clamp(74px, 10vw, 126px) clamp(6px, 2vw, 28px);
}

.home-flow__intro {
    position: sticky;
    top: 34px;
}

.home-flow__intro h2,
.coordination-story h2,
.home-final h2 {
    max-width: 12ch;
    margin-bottom: 20px;
    font-size: clamp(2rem, 4vw, 3.8rem);
    line-height: 1.02;
}

.home-flow__intro p {
    max-width: 48ch;
    color: var(--ink-650);
    font-size: 1.02rem;
}

.home-flow__steps {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--ink-200);
}

.flow-step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px solid var(--ink-200);
}

.flow-step__number {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 10px;
    font-size: .75rem;
    font-weight: 850;
}

.flow-step h3 {
    margin-bottom: 7px;
    font-size: 1.08rem;
}

.flow-step p {
    max-width: 55ch;
    margin-bottom: 0;
    color: var(--ink-650);
}

.coordination-story {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(330px, .98fr);
    gap: clamp(30px, 6vw, 82px);
    align-items: center;
    padding: clamp(46px, 7vw, 82px);
    overflow: hidden;
    color: white;
    background: #101a3e;
    border-radius: 16px;
}

.coordination-story::before {
    position: absolute;
    inset: auto -12% -70% auto;
    width: 34rem;
    height: 34rem;
    background: radial-gradient(circle, rgb(63 208 226 / 46%), transparent 65%);
    content: "";
    pointer-events: none;
}

.coordination-story h2 {
    color: white;
}

.coordination-story p {
    max-width: 58ch;
    color: rgb(235 241 255 / 76%);
}

.availability-stack {
    position: relative;
    display: grid;
    gap: 11px;
}

.availability-row {
    position: relative;
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 12px;
    align-items: center;
    padding: 13px 15px;
    background: rgb(255 255 255 / 8%);
    border: 1px solid rgb(255 255 255 / 12%);
    border-radius: 11px;
}

.availability-row__avatar {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    background: rgb(255 255 255 / 13%);
    border-radius: 10px;
    color: white;
    font-size: .72rem;
    font-weight: 850;
}

.availability-row strong {
    display: block;
    font-size: .82rem;
}

.availability-row small {
    color: rgb(230 237 255 / 65%);
    font-size: .68rem;
}

.availability-row__bar {
    position: absolute;
    right: 14px;
    width: var(--bar-width, 32%);
    height: 7px;
    background: var(--bar-color, #55dbe8);
    border-radius: 999px;
    box-shadow: 0 0 18px color-mix(in srgb, var(--bar-color) 56%, transparent);
}

.home-final {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 32px;
    align-items: end;
    padding: clamp(76px, 10vw, 124px) clamp(6px, 2vw, 28px) 50px;
}

.home-final p {
    max-width: 58ch;
    margin-bottom: 0;
    color: var(--ink-650);
}

.home-final .actions {
    margin: 0;
}

/* Authenticated product shell */
.sidebar {
    background: color-mix(in srgb, var(--surface) 90%, transparent);
    border-right-color: color-mix(in srgb, var(--ink-200) 72%, transparent);
    box-shadow: 12px 0 34px rgb(16 30 69 / 5%);
    backdrop-filter: blur(20px) saturate(118%);
    -webkit-backdrop-filter: blur(20px) saturate(118%);
}

.sidebar__link[aria-current="page"] {
    color: var(--accent);
    background: linear-gradient(90deg, var(--accent-soft), color-mix(in srgb, var(--accent-soft) 35%, transparent));
    box-shadow: inset 3px 0 0 var(--accent);
}

.sidebar__link:hover,
.sidebar__logout:hover {
    background: color-mix(in srgb, var(--surface-muted) 76%, transparent);
}

.page-container {
    max-width: 1540px;
}

.page-heading {
    position: relative;
}

.card,
.metric-card,
.form-card,
.table-card,
.calendar-shell,
.shared-calendar-panel {
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    border-color: color-mix(in srgb, var(--ink-200) 76%, transparent);
}

.metric-card {
    overflow: hidden;
}

.metric-card::after {
    position: absolute;
    inset: auto -32px -46px auto;
    width: 94px;
    height: 94px;
    background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 68%);
    content: "";
    pointer-events: none;
}

/* Calendar color rendering. Inline custom properties are assigned by calendar.js. */
#calendar .fc-v-event.calendar-event-block,
#calendar .fc-daygrid-event.calendar-event-block,
#calendar .fc-multimonth-event.calendar-event-block {
    opacity: 1 !important;
    background: var(--calendar-event-bg, #3158e8) !important;
    border-color: var(--calendar-event-bg, #3158e8) !important;
    color: var(--calendar-event-text, #ffffff) !important;
    box-shadow: 0 5px 12px color-mix(in srgb, var(--calendar-event-bg, #3158e8) 28%, transparent) !important;
}

#calendar .calendar-event-block .fc-event-main,
#calendar .calendar-event-block .fc-event-main-frame,
#calendar .calendar-event-block .fc-event-title-container,
#calendar .calendar-event-block .fc-event-time,
#calendar .calendar-event-block .fc-event-title {
    background: transparent !important;
    color: var(--calendar-event-text, #ffffff) !important;
}

#calendar .calendar-event-block--shared {
    outline: 1px solid rgb(255 255 255 / 30%);
    outline-offset: -2px;
}

.fc .fc-event {
    border-radius: 7px;
    font-weight: 720;
}

.fc .fc-button {
    transition: transform 150ms var(--ease-out), background-color 160ms ease, color 160ms ease;
}

.fc .fc-button:active {
    transform: scale(.97);
}

.calendar-shell {
    box-shadow: 0 14px 34px rgb(21 38 82 / 8%);
}

.calendar-tools {
    background: linear-gradient(90deg, color-mix(in srgb, var(--accent-soft) 55%, transparent), transparent);
    border-radius: 10px;
}

.shared-calendar-layout {
    align-items: start;
}

.shared-calendar-sidebar {
    position: sticky;
    top: 24px;
}

.shared-calendar-link[aria-current="page"] {
    background: var(--accent-soft);
    box-shadow: inset 3px 0 0 var(--accent);
}

.shared-calendar-swatch {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--calendar-color) 18%, transparent);
}

.dialog-panel {
    box-shadow: 0 30px 80px rgb(5 15 43 / 28%);
}

@media (max-width: 1040px) {
    .orbit-hero {
        min-height: auto;
        grid-template-columns: 1fr;
        padding: clamp(38px, 7vw, 66px);
    }

    .orbit-hero h1 {
        max-width: 12ch;
    }

    .schedule-artifact {
        min-height: 500px;
    }

    .schedule-artifact__shell {
        transform: none;
    }

    .home-flow {
        grid-template-columns: 1fr;
    }

    .home-flow__intro {
        position: static;
    }

    .coordination-story {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .public-nav,
    .public-main {
        width: min(100% - 28px, 1240px);
    }

    .public-nav {
        min-height: 72px;
    }

    .public-nav__links {
        padding: 4px;
        background: transparent;
        border: 0;
        box-shadow: none;
        backdrop-filter: none;
    }

    .orbit-hero {
        border-radius: 12px;
        padding: 36px 22px 26px;
    }

    .orbit-hero h1 {
        font-size: clamp(2.75rem, 14vw, 4.6rem);
    }

    .orbit-hero__proof {
        display: grid;
    }

    .schedule-artifact {
        min-height: 390px;
        margin-top: 8px;
    }

    .schedule-artifact__shell {
        overflow-x: auto;
    }

    .artifact-calendar {
        min-width: 540px;
    }

    .schedule-artifact__badge {
        right: 12px;
        bottom: 12px;
    }

    .home-flow {
        padding: 72px 4px;
    }

    .flow-step {
        grid-template-columns: 42px 1fr;
        gap: 14px;
    }

    .coordination-story {
        padding: 36px 22px;
        border-radius: 12px;
    }

    .availability-row__bar {
        position: static;
        width: var(--bar-width, 42%);
        margin-top: 9px;
    }

    .home-final {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .home-final .actions {
        justify-content: flex-start;
    }

    .shared-calendar-sidebar {
        position: static;
    }
}

@media (max-width: 520px) {
    .brand-mark {
        width: 38px;
        height: 38px;
    }

    .orbit-hero .actions,
    .home-final .actions {
        display: grid;
        width: 100%;
    }

    .orbit-hero .button,
    .orbit-hero .secondary-button,
    .home-final .button,
    .home-final .secondary-button {
        justify-content: center;
        width: 100%;
    }

    .schedule-artifact__badge {
        min-width: 148px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .brand-mark img,
    .button,
    .secondary-button,
    .table-action,
    .public-nav__link,
    .sidebar__link,
    .sidebar__logout,
    .mobile-menu-button,
    .public-theme-toggle,
    .fc .fc-button {
        transition-duration: 1ms !important;
    }

    .schedule-artifact__shell {
        transform: none;
    }
}

@media (prefers-reduced-transparency: reduce) {
    .public-nav__links,
    .sidebar {
        background: var(--surface);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}

@media (min-width: 761px) {
    .public-nav__links.liquid-glass-runtime {
        position: fixed;
        z-index: 70;
        top: 16px;
        right: max(24px, calc((100vw - 1240px) / 2));
    }
}

/* July 2026 usability correction pass ------------------------------------- */
.mobile-topbar__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-theme-button {
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: var(--ink-800);
    background: var(--surface);
    border: 1px solid var(--ink-200);
    border-radius: 11px;
    box-shadow: 0 7px 18px rgb(18 32 72 / 8%);
    cursor: pointer;
}

.mobile-theme-button:hover {
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 42%, var(--ink-200));
}

/* The icon represents the mode the button will switch to. */
.theme-toggle__light {
    display: none;
}

.theme-toggle__dark {
    display: block;
}

html[data-theme="dark"] .theme-toggle__light {
    display: block;
}

html[data-theme="dark"] .theme-toggle__dark {
    display: none;
}

/* High-contrast dashboard treatment in both themes. */
.dashboard-hero {
    gap: 20px;
}

.dashboard-welcome {
    isolation: isolate;
    color: #ffffff;
    background:
        radial-gradient(circle at 86% 18%, rgb(117 153 255 / 36%), transparent 15rem),
        radial-gradient(circle at 18% 118%, rgb(49 213 226 / 20%), transparent 19rem),
        linear-gradient(135deg, #101a3d 0%, #17275d 52%, #2748b7 100%) !important;
    border: 1px solid rgb(154 179 255 / 22%);
    box-shadow: 0 18px 44px rgb(10 21 60 / 20%);
}

.dashboard-welcome::after {
    opacity: .9;
}

.dashboard-welcome .eyebrow {
    color: #a9bdff;
}

.dashboard-welcome h1 {
    max-width: 13ch;
    color: #ffffff !important;
    font-size: clamp(2.45rem, 4.8vw, 4.65rem);
    font-weight: 760;
    line-height: .98;
    text-shadow: 0 2px 20px rgb(4 12 40 / 25%);
}

.dashboard-welcome p {
    max-width: 60ch;
    color: #d8e0ff !important;
    font-size: clamp(.98rem, 1.25vw, 1.08rem);
    line-height: 1.65;
}

.progress-panel,
.metric,
.day-column {
    background: var(--surface) !important;
    border-color: var(--ink-200) !important;
    box-shadow: 0 10px 28px rgb(18 32 72 / 7%);
}

.progress-panel__value,
.metric__value,
.day-column__heading strong,
.assignment-card h3,
.section-heading h2 {
    color: var(--ink-950);
}

.metric__label,
.day-column__heading span,
.empty-state,
.assignment-card__meta {
    color: var(--ink-650);
}

.day-column--today {
    background: var(--surface-blue) !important;
    border-color: color-mix(in srgb, var(--accent) 44%, var(--ink-200)) !important;
}

html[data-theme="dark"] .dashboard-welcome {
    background:
        radial-gradient(circle at 86% 18%, rgb(111 145 255 / 28%), transparent 15rem),
        radial-gradient(circle at 18% 118%, rgb(39 190 207 / 16%), transparent 19rem),
        linear-gradient(135deg, #0b1433 0%, #111e49 55%, #203b99 100%) !important;
}

html[data-theme="dark"] .progress-panel,
html[data-theme="dark"] .metric,
html[data-theme="dark"] .day-column {
    color: #f2f5ff;
    background: #111a31 !important;
    border-color: #2b3859 !important;
    box-shadow: 0 14px 32px rgb(0 0 0 / 20%);
}

html[data-theme="dark"] .day-column--today {
    background: #192955 !important;
    border-color: #536fd0 !important;
}

html[data-theme="dark"] .metric__label,
html[data-theme="dark"] .day-column__heading span,
html[data-theme="dark"] .empty-state,
html[data-theme="dark"] .assignment-card__meta {
    color: #aeb9d5;
}

html[data-theme="dark"] .progress-panel__value,
html[data-theme="dark"] .metric__value,
html[data-theme="dark"] .day-column__heading strong,
html[data-theme="dark"] .assignment-card h3,
html[data-theme="dark"] .section-heading h2 {
    color: #f5f7ff;
}

html[data-theme="dark"] .progress-track {
    background: #2b3859;
}

/* Shared calendar panels remain in normal document flow, never above the calendar. */
.shared-calendar-layout {
    position: relative;
    isolation: isolate;
    grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
    gap: 24px;
}

.shared-calendar-sidebar {
    position: static !important;
    z-index: auto;
    align-self: start;
    min-width: 0;
}

.shared-calendar-main {
    position: relative;
    z-index: 1;
    min-width: 0;
}

.shared-calendar-panel {
    position: relative;
    overflow: hidden;
    background: var(--surface) !important;
    border-color: var(--ink-200) !important;
    box-shadow: 0 12px 30px rgb(18 32 72 / 7%);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.calendar-shell {
    position: relative;
    z-index: 1;
    overflow: hidden;
    background: var(--surface) !important;
    isolation: isolate;
}

.shared-calendar-list-heading {
    display: flex;
    align-items: flex-start !important;
}

.shared-calendar-count {
    display: inline-grid;
    min-width: 30px;
    height: 30px;
    place-items: center;
    padding: 0 8px;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 800;
}

.shared-calendar-list {
    gap: 10px;
}

.shared-calendar-link {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 30px;
    gap: 12px;
    align-items: center;
    min-height: 64px;
    padding: 10px 12px;
    color: var(--ink-800);
    background: var(--surface-muted);
    border: 1px solid transparent;
    border-radius: 13px;
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 45%);
    text-decoration: none;
    transition:
        transform 160ms var(--ease-out),
        border-color 160ms ease,
        background-color 160ms ease,
        box-shadow 160ms ease;
}

.shared-calendar-link:hover {
    color: var(--ink-950);
    background: color-mix(in srgb, var(--accent-soft) 54%, var(--surface));
    border-color: color-mix(in srgb, var(--accent) 30%, var(--ink-200));
    box-shadow: 0 8px 20px rgb(25 45 101 / 10%);
    transform: translateY(-1px);
}

.shared-calendar-link[aria-current="page"] {
    color: var(--ink-950);
    background: color-mix(in srgb, var(--accent-soft) 76%, var(--surface));
    border-color: color-mix(in srgb, var(--accent) 44%, var(--ink-200));
    box-shadow: 0 10px 24px color-mix(in srgb, var(--accent) 14%, transparent);
}

.shared-calendar-swatch {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #ffffff;
    background: var(--calendar-color);
    border: 0;
    border-radius: 12px;
    box-shadow:
        0 8px 18px color-mix(in srgb, var(--calendar-color) 28%, transparent),
        inset 0 0 0 1px rgb(255 255 255 / 25%);
}

.shared-calendar-swatch .icon {
    width: 20px;
    height: 20px;
}

.shared-calendar-link__identity {
    min-width: 0;
}

.shared-calendar-link__identity strong,
.shared-calendar-link__identity small {
    display: block;
}

.shared-calendar-link__identity strong {
    overflow: hidden;
    color: inherit;
    font-size: .88rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shared-calendar-link__identity small {
    margin-top: 3px;
    color: var(--ink-500);
    font-size: .7rem;
}

.shared-calendar-link__action {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    color: var(--ink-500);
    background: var(--surface);
    border: 1px solid var(--ink-200);
    border-radius: 9px;
}

.shared-calendar-link[aria-current="page"] .shared-calendar-link__action {
    color: #ffffff;
    background: var(--accent);
    border-color: var(--accent);
}

.shared-calendar-link__action .icon {
    width: 15px;
    height: 15px;
}

.shared-calendar-list-empty {
    display: grid;
    place-items: center;
    gap: 8px;
    padding: 22px 14px;
    color: var(--ink-500);
    background: var(--surface-muted);
    border: 1px dashed var(--ink-200);
    border-radius: 13px;
    text-align: center;
}

.shared-calendar-list-empty p {
    max-width: 22ch;
    margin: 0;
    font-size: .78rem;
}

html[data-theme="dark"] .shared-calendar-panel,
html[data-theme="dark"] .calendar-shell {
    background: #111a31 !important;
    border-color: #2b3859 !important;
}

html[data-theme="dark"] .shared-calendar-link {
    background: #17223b;
    border-color: #263451;
    box-shadow: none;
}

html[data-theme="dark"] .shared-calendar-link:hover,
html[data-theme="dark"] .shared-calendar-link[aria-current="page"] {
    background: #1d2d59;
    border-color: #536fd0;
}

html[data-theme="dark"] .shared-calendar-link__action {
    background: #111a31;
    border-color: #33415f;
}

@media (max-width: 1120px) {
    .shared-calendar-layout {
        grid-template-columns: 1fr;
    }

    .shared-calendar-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .shared-calendar-sidebar .shared-calendar-panel:last-child:nth-child(3) {
        grid-column: 1 / -1;
    }
}

@media (max-width: 700px) {
    .shared-calendar-sidebar {
        grid-template-columns: 1fr;
    }

    .shared-calendar-sidebar .shared-calendar-panel:last-child:nth-child(3) {
        grid-column: auto;
    }

    .dashboard-welcome h1 {
        font-size: clamp(2.15rem, 12vw, 3.4rem);
    }
}

/* Iteration 4: overlap blending, recurrence controls, deletion requests, study tools */
.calendar-workspace--shared #calendar .fc-timegrid-col-events {
    isolation: isolate;
}

.calendar-workspace--shared #calendar .fc-timegrid-event-harness {
    inset-inline: 0 !important;
    width: auto !important;
    margin-inline: 0 !important;
}

.calendar-workspace--shared #calendar .calendar-event-block--shared {
    width: 100% !important;
    max-width: none !important;
    opacity: .62 !important;
    mix-blend-mode: normal;
    border-width: 1px !important;
    box-shadow: 0 5px 12px rgb(10 21 45 / 10%);
    cursor: grab;
}

.calendar-workspace--shared #calendar .calendar-event-block--shared:active {
    cursor: grabbing;
}

.calendar-workspace--shared #calendar .calendar-event-block--shared .fc-event-main {
    text-shadow: 0 1px 2px rgb(0 0 0 / 26%);
}

html[data-theme="dark"] .calendar-workspace--shared #calendar .calendar-event-block--shared {
    opacity: .68 !important;
    mix-blend-mode: normal;
}

.legend-overlap-sample {
    position: relative;
    display: inline-block;
    width: 28px;
    height: 14px;
}

.legend-overlap-sample::before,
.legend-overlap-sample::after {
    content: "";
    position: absolute;
    top: 1px;
    width: 17px;
    height: 12px;
    border-radius: 4px;
    opacity: .62;
    mix-blend-mode: normal;
}

.legend-overlap-sample::before {
    left: 0;
    background: #3158e8;
}

.legend-overlap-sample::after {
    right: 0;
    background: #ec4899;
}

.recurrence-editor {
    margin-top: 18px;
    padding: 16px;
    background: var(--surface-muted);
    border: 1px solid var(--ink-100);
    border-radius: 16px;
}

.toggle-field {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.toggle-field > input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.toggle-field__control {
    position: relative;
    flex: 0 0 auto;
    width: 44px;
    height: 24px;
    background: var(--ink-200);
    border-radius: 999px;
    transition: background 160ms var(--ease-out);
}

.toggle-field__control::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: var(--surface);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgb(10 21 45 / 20%);
    transition: transform 180ms var(--ease-out);
}

.toggle-field > input:checked + .toggle-field__control {
    background: var(--accent);
}

.toggle-field > input:checked + .toggle-field__control::after {
    transform: translateX(20px);
}

.toggle-field > input:focus-visible + .toggle-field__control {
    outline: 3px solid rgb(49 87 213 / 28%);
    outline-offset: 3px;
}

.toggle-field strong,
.toggle-field small {
    display: block;
}

.toggle-field small,
.field-help {
    color: var(--ink-500);
    font-size: .78rem;
}

.recurrence-fields {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--ink-100);
}

.frequency-control {
    display: grid;
    grid-template-columns: auto minmax(68px, 90px) 1fr;
    align-items: center;
    gap: 8px;
}

.frequency-control input {
    width: 100%;
}

.form-label {
    display: block;
    margin-bottom: 7px;
    color: var(--ink-800);
    font-weight: 700;
}

.weekday-picker {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 7px;
}

.weekday-picker input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.weekday-picker span {
    display: grid;
    place-items: center;
    min-height: 38px;
    color: var(--ink-650);
    background: var(--surface);
    border: 1px solid var(--ink-200);
    border-radius: 10px;
    font-size: .78rem;
    font-weight: 750;
    cursor: pointer;
    transition: 150ms var(--ease-out);
}

.weekday-picker input:checked + span {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
}

.weekday-picker input:focus-visible + span {
    outline: 3px solid rgb(49 87 213 / 28%);
    outline-offset: 2px;
}

.recurrence-summary,
.dialog-notice {
    margin: 0;
    padding: 11px 13px;
    color: var(--ink-800);
    background: var(--surface-blue);
    border: 1px solid var(--accent-soft);
    border-radius: 11px;
    font-size: .84rem;
}

.deletion-request-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
}

.deletion-request-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 18px;
    padding: 18px;
}

.deletion-request-card__body h3 {
    margin: 11px 0 8px;
    font-size: 1.08rem;
}

.deletion-request-card__body p,
.deletion-request-card__body small {
    margin-bottom: 6px;
    color: var(--ink-650);
}

.deletion-request-card__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.study-tools-heading {
    margin-bottom: 24px;
}

.study-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 22px;
}

.study-tool-card {
    overflow: hidden;
    padding: 0;
}

.study-tool-card__preview {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #13203b;
}

.study-tool-card__preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 320ms var(--ease-out);
}

.study-tool-card:hover .study-tool-card__preview img {
    transform: scale(1.025);
}

.study-tool-card__external {
    position: absolute;
    top: 16px;
    right: 16px;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: #fff;
    background: rgb(11 23 49 / 64%);
    border: 1px solid rgb(255 255 255 / 28%);
    border-radius: 12px;
    backdrop-filter: blur(12px);
}

.study-tool-card__external .icon {
    width: 18px;
    height: 18px;
}

.study-tool-card__body {
    padding: 22px;
}

.study-tool-card__body h2 {
    margin: 7px 0 8px;
    font-size: 1.45rem;
}

.study-tool-card__body p {
    color: var(--ink-650);
}

.study-tool-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 20px;
}

.study-tool-domain {
    overflow: hidden;
    color: var(--ink-500);
    font-size: .78rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.study-tools-note {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    margin-top: 18px;
    padding: 16px 18px;
}

.study-tools-note > .icon {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.study-tools-note p {
    margin: 3px 0 0;
    color: var(--ink-650);
}

@media (max-width: 720px) {
    .weekday-picker {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .study-tool-card__footer {
        align-items: stretch;
        flex-direction: column;
    }

    .study-tool-card__footer .button {
        width: 100%;
    }
}
.calendar-workspace--shared .fc-timegrid-event-harness-inset {
    left: 0 !important;
    right: 0 !important;
    width: auto !important;
    margin-right: 0 !important;
}
.calendar-workspace--shared .fc-timegrid-event-harness { mix-blend-mode: multiply; }
.item-kind-picker { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.65rem; }
.item-kind-picker input { position:absolute; opacity:0; }
.item-kind-picker span { display:block; padding:.85rem 1rem; border:1px solid var(--border); border-radius:14px; cursor:pointer; }
.item-kind-picker input:checked + span { border-color:var(--accent); box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 25%,transparent); background:color-mix(in srgb,var(--accent) 10%,var(--surface)); }
.notification-layout { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:1.25rem; }
.notification-list { display:grid; gap:.75rem; }
.notification-item { display:flex; align-items:flex-start; justify-content:space-between; gap:1rem; padding:1rem; border:1px solid var(--border); border-radius:16px; background:var(--surface-soft); }
.notification-item--unread { border-color:color-mix(in srgb,var(--accent) 55%,var(--border)); box-shadow:inset 4px 0 0 var(--accent); }
.notification-item strong { display:block; margin:.35rem 0; }
.notification-item p { margin:.25rem 0; color:var(--text-muted); }
.notification-compose-form { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.notification-compose-form .button { justify-self:start; }
@media(max-width:760px){.item-kind-picker,.notification-layout,.notification-compose-form{grid-template-columns:1fr}}