/* =========================================================
   CheckApps Patient Portal — palette taken from the logo
   ========================================================= */
:root {
    --ca-bg:        #0B0B0E;
    --ca-bg-2:      #121217;
    --ca-card:      rgba(22, 22, 28, 0.78);
    --ca-surface:   rgba(255, 255, 255, 0.04);
    --ca-surface-2: rgba(255, 255, 255, 0.07);
    --ca-border:    rgba(255, 255, 255, 0.09);
    --ca-border-2:  rgba(255, 255, 255, 0.16);
    --ca-text:      #F3F3F6;
    --ca-muted:     #A3A3B0;
    --ca-dim:       #6E6E7C;

    --ca-teal:      #12D6C8;   /* speech bubble — light */
    --ca-teal-2:    #0A9FB0;   /* speech bubble — shade */
    --ca-purple:    #7C3AED;   /* head circle */
    --ca-purple-2:  #5B21F5;
    --ca-warm:      #3B2A12;   /* warm glow behind the logo */

    --ca-grad:      linear-gradient(120deg, #19E3D2 0%, #0FC2C4 45%, #0A9FB0 100%);
    --ca-grad-brand:linear-gradient(120deg, var(--ca-teal) 0%, var(--ca-purple) 100%);

    --ca-danger:    #FF5D7A;
    --ca-warn:      #FFB547;
    --ca-success:   #2FE3A5;

    /* theme-dependent surfaces & text */
    --ca-strong:      #FFFFFF;
    --ca-label:       #D6D6DE;
    --ca-placeholder: #5E5E6A;
    --ca-scheme:      dark;
    --ca-input:       rgba(0, 0, 0, .32);
    --ca-input-2:     rgba(0, 0, 0, .35);
    --ca-input-3:     rgba(0, 0, 0, .18);
    --ca-elevated:    #16161C;
    --ca-side:        rgba(14, 14, 18, .82);
    --ca-hero:        linear-gradient(130deg, rgba(22, 22, 28, .9), rgba(22, 22, 28, .7));
    --ca-shadow-lg:   0 40px 80px -30px rgba(0, 0, 0, .8);
    --ca-highlight:   rgba(255, 255, 255, .06);
    --ca-purple-text: #A57BFF;
    --ca-err-fg:      #FFB3C1;
    --ca-ok-fg:       #A6F5D8;
    --ca-info-fg:     #CDB6FF;
    --ca-dev-fg:      #FFD9A0;

    --ca-radius:    14px;
    --ca-ease:      cubic-bezier(.22, 1, .36, 1);
    --ca-spring:    cubic-bezier(.34, 1.56, .64, 1);
    color-scheme: dark;
}

/* ---------------- Light theme ---------------- */
:root[data-theme="light"] {
    --ca-bg:        #F4F5FA;
    --ca-bg-2:      #FFFFFF;
    --ca-card:      rgba(255, 255, 255, .84);
    --ca-surface:   rgba(15, 16, 32, .035);
    --ca-surface-2: rgba(15, 16, 32, .06);
    --ca-border:    rgba(15, 16, 32, .10);
    --ca-border-2:  rgba(15, 16, 32, .18);
    --ca-text:      #16161E;
    --ca-muted:     #545768;
    --ca-dim:       #858898;

    --ca-teal:      #08848F;   /* darker teal so text stays readable on white */
    --ca-danger:    #D92D55;
    --ca-warn:      #B86E00;
    --ca-success:   #0E9F6E;

    --ca-strong:      #0F1020;
    --ca-label:       #33364A;
    --ca-placeholder: #9DA0AE;
    --ca-scheme:      light;
    --ca-input:       #FFFFFF;
    --ca-input-2:     rgba(15, 16, 32, .05);
    --ca-input-3:     rgba(15, 16, 32, .025);
    --ca-elevated:    #FFFFFF;
    --ca-side:        rgba(255, 255, 255, .86);
    --ca-hero:        linear-gradient(130deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .78));
    --ca-shadow-lg:   0 40px 80px -34px rgba(40, 40, 90, .28);
    --ca-highlight:   rgba(255, 255, 255, .9);
    --ca-purple-text: #6D28D9;
    --ca-err-fg:      #B4213F;
    --ca-ok-fg:       #0B7250;
    --ca-info-fg:     #5B21B6;
    --ca-dev-fg:      #8A5300;
    color-scheme: light;
}
[data-theme="light"] .ca-ambient { background: radial-gradient(ellipse 70% 60% at 32% 45%, rgba(255, 196, 110, .22), transparent 70%), var(--ca-bg); }
[data-theme="light"] .orb-teal   { opacity: .20; }
[data-theme="light"] .orb-purple { opacity: .14; }
[data-theme="light"] .orb-warm   { opacity: .10; }
[data-theme="light"] .ca-grid {
    background-image: linear-gradient(rgba(15, 16, 32, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 16, 32, .045) 1px, transparent 1px); }
[data-theme="light"] .toast,
[data-theme="light"] .modal-card { box-shadow: 0 24px 48px -20px rgba(40, 40, 90, .3); }
[data-theme="light"] .ca-modal { background: rgba(20, 22, 45, .35); }
[data-theme="light"] .brand-logo img { filter: drop-shadow(0 12px 30px rgba(8, 132, 143, .18)); }

/* Logo variants: white wordmark on dark, ink wordmark on light */
.logo-on-light { display: none !important; }
[data-theme="light"] .logo-on-dark  { display: none !important; }
[data-theme="light"] .logo-on-light { display: block !important; }

/* Smooth colour change when the theme switches (fallback when View Transitions aren't supported) */
html.theme-switching *, html.theme-switching *::before, html.theme-switching *::after {
    transition: background-color .45s ease, color .45s ease, border-color .45s ease, fill .45s ease, box-shadow .45s ease !important;
}
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }

/* ---------------- Theme toggle ---------------- */
.theme-toggle { position: relative; flex: 0 0 auto; width: 68px; height: 36px; padding: 0; border-radius: 999px; cursor: pointer;
    background: var(--ca-surface-2); border: 1px solid var(--ca-border-2); box-shadow: inset 0 1px 2px rgba(0, 0, 0, .12);
    transition: background .4s, border-color .4s, transform .25s var(--ca-ease); }
.theme-toggle:hover { border-color: var(--ca-teal); transform: translateY(-1px); }
.theme-toggle:focus-visible { outline: 2px solid var(--ca-teal); outline-offset: 3px; }
.theme-toggle .tt-bg { position: absolute; top: 50%; transform: translateY(-50%); font-size: .8rem; color: var(--ca-dim); transition: opacity .3s; }
.theme-toggle .tt-bg.sun  { left: 11px; }
.theme-toggle .tt-bg.moon { right: 11px; }
.theme-toggle .tt-thumb { position: absolute; top: 3px; left: 3px; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; overflow: hidden;
    background: linear-gradient(135deg, var(--ca-purple), var(--ca-purple-2)); color: #fff; box-shadow: 0 4px 12px -2px rgba(124, 58, 237, .6);
    transform: translateX(32px); transition: transform .5s var(--ca-spring), background .4s, box-shadow .4s; }
.theme-toggle .tt-thumb i { position: absolute; font-size: .85rem; transition: transform .5s var(--ca-spring), opacity .3s; }
.theme-toggle .tt-thumb .sun  { transform: rotate(-90deg) scale(.4); opacity: 0; }
.theme-toggle .tt-thumb .moon { transform: none; opacity: 1; }
[data-theme="light"] .theme-toggle .tt-thumb { transform: translateX(0); background: linear-gradient(135deg, #FFC24A, #FF9A3D); box-shadow: 0 4px 12px -2px rgba(255, 154, 61, .6); }
[data-theme="light"] .theme-toggle .tt-thumb .sun  { transform: none; opacity: 1; }
[data-theme="light"] .theme-toggle .tt-thumb .moon { transform: rotate(90deg) scale(.4); opacity: 0; }
[data-theme="light"] .theme-toggle .tt-bg.sun,
:root:not([data-theme="light"]) .theme-toggle .tt-bg.moon { opacity: 0; }

.theme-toggle.floating { position: fixed; top: 20px; right: 20px; z-index: 30; backdrop-filter: blur(10px); animation: fadeIn .6s ease .6s both; }

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    background: var(--ca-bg);
    color: var(--ca-text);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
button { font: inherit; color: inherit; }
img { max-width: 100%; display: block; }
.w-100 { width: 100%; }
[hidden] { display: none !important; }

/* ---------------- Ambient background ---------------- */
.ca-ambient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
    background: radial-gradient(ellipse 70% 60% at 32% 45%, rgba(92, 64, 22, .38), transparent 70%), var(--ca-bg); }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; will-change: transform; }
.orb-teal   { width: 480px; height: 480px; background: var(--ca-teal);   top: -140px; left: -120px; opacity: .22; animation: drift1 48s ease-in-out infinite; }
.orb-purple { width: 520px; height: 520px; background: var(--ca-purple); bottom: -180px; right: -140px; opacity: .28; animation: drift2 56s ease-in-out infinite; }
.orb-warm   { width: 380px; height: 380px; background: #8a5a12; top: 40%; left: 30%; opacity: .16; animation: drift3 64s ease-in-out infinite; }
.ca-grid { position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%); }
/* Slow looping paths across the screen: each orb wanders and returns to its start, so the loop is seamless */
@keyframes drift1 { 0%, 100% { transform: translate(0, 0) scale(1); } 25% { transform: translate(28vw, 12vh) scale(1.2); } 50% { transform: translate(40vw, 38vh) scale(.9); } 75% { transform: translate(10vw, 30vh) scale(1.1); } }
@keyframes drift2 { 0%, 100% { transform: translate(0, 0) scale(1); } 25% { transform: translate(-32vw, -10vh) scale(1.1); } 50% { transform: translate(-45vw, -40vh) scale(1.25); } 75% { transform: translate(-12vw, -30vh) scale(.9); } }
@keyframes drift3 { 0%, 100% { transform: translate(0, 0) scale(1); } 33% { transform: translate(22vw, -20vh) scale(1.2); } 66% { transform: translate(-18vw, 18vh) scale(.85); } }

/* ---------------- Entrance animations ---------------- */
[data-anim] { opacity: 0; animation-fill-mode: both; animation-duration: .9s; animation-timing-function: var(--ca-ease); animation-delay: calc(var(--d, 0) * 70ms + 100ms); }
[data-anim="rise"] { animation-name: rise; }
[data-anim="fade"] { animation-name: fadeIn; }
@keyframes rise   { from { opacity: 0; transform: translateY(22px); filter: blur(4px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------------- Layout ---------------- */
.auth-shell { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; min-height: 100vh; max-width: 1320px; margin: 0 auto; }

.brand-panel { display: flex; flex-direction: column; justify-content: space-between; padding: 36px 56px 30px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--ca-muted); text-decoration: none; font-size: .85rem; font-weight: 600; width: fit-content; transition: color .25s, gap .25s var(--ca-ease); }
.back-link:hover { color: var(--ca-teal); gap: 12px; }
.brand-body { max-width: 520px; padding-top: 28px; }
.brand-logo { width: 240px; margin-bottom: 30px; position: relative; }
.brand-logo img { filter: drop-shadow(0 12px 40px rgba(18, 214, 200, .25)); animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-6px); } }

.ca-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--ca-teal); margin-bottom: 18px; }
.ca-eyebrow::before { content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--ca-grad-brand); }

.brand-title { font-family: 'Newsreader', serif; font-weight: 600; font-size: clamp(2rem, 3.4vw, 3rem); line-height: 1.1; letter-spacing: -.02em; margin: 0 0 16px; }
.brand-title em { font-style: italic; font-weight: 500; background: var(--ca-grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; background-size: 200% 100%; animation: shimmer 8s ease-in-out infinite; }
@keyframes shimmer { 50% { background-position: 100% 0; } }
.brand-sub { color: var(--ca-muted); line-height: 1.65; font-size: 1rem; margin: 0 0 30px; }

.brand-features { list-style: none; padding: 0; margin: 0 0 32px; display: grid; gap: 14px; }
.brand-features li { display: flex; gap: 14px; align-items: center; padding: 12px 14px; border-radius: 14px; border: 1px solid transparent; transition: background .3s, border-color .3s, transform .3s var(--ca-ease); }
.brand-features li:hover { background: var(--ca-surface); border-color: var(--ca-border); transform: translateX(6px); }
.brand-features strong { display: block; font-size: .95rem; }
.brand-features small { color: var(--ca-muted); font-size: .83rem; }
.feat-icon { flex: 0 0 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.15rem; }
.feat-icon.teal   { background: rgba(18, 214, 200, .12); color: var(--ca-teal);   box-shadow: inset 0 0 0 1px rgba(18, 214, 200, .25); }
.feat-icon.purple { background: rgba(124, 58, 237, .16); color: var(--ca-purple-text);          box-shadow: inset 0 0 0 1px rgba(124, 58, 237, .35); }

.brand-stats { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ca-border); border-radius: 16px; background: var(--ca-surface); backdrop-filter: blur(8px); }
.brand-stats > div { padding: 16px 18px; }
.brand-stats > div + div { border-left: 1px solid var(--ca-border); }
.stat-num, .stat-suf { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; color: var(--ca-strong); }
.stat-suf { color: var(--ca-teal); }
.brand-stats small { display: block; color: var(--ca-muted); font-size: .75rem; margin-top: 2px; }
.brand-foot { color: var(--ca-dim); font-size: .78rem; margin: 26px 0 0; }

/* ---------------- Auth card ---------------- */
.auth-side { display: flex; align-items: center; justify-content: center; padding: 40px 32px; }
.auth-card { position: relative; width: 100%; max-width: 480px; padding: 34px 34px 24px; border-radius: 24px;
    background: var(--ca-card); border: 1px solid var(--ca-border);
    backdrop-filter: blur(22px) saturate(140%); -webkit-backdrop-filter: blur(22px) saturate(140%);
    box-shadow: 0 40px 80px -30px var(--ca-shadow-lg), inset 0 1px 0 var(--ca-highlight);
    animation: cardIn 1s var(--ca-ease) .25s both; }
.auth-card::before { /* animated gradient border */
    content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
    background: conic-gradient(from var(--ang, 0deg), transparent 0 60%, rgba(18, 214, 200, .7) 72%, rgba(124, 58, 237, .8) 85%, transparent 95%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
    animation: spinBorder 7s linear infinite; }
@property --ang { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes spinBorder { to { --ang: 360deg; } }
@keyframes cardIn { from { opacity: 0; transform: translateY(30px) scale(.97); } to { opacity: 1; transform: none; } }
.card-glow { position: absolute; top: -1px; left: 50%; width: 60%; height: 1px; transform: translateX(-50%); background: linear-gradient(90deg, transparent, var(--ca-teal), transparent); }

.mobile-logo { display: none; width: 170px; margin: 0 auto 22px; }

/* Tabs */
.auth-tabs { position: relative; display: grid; grid-template-columns: 1fr 1fr; padding: 5px; border-radius: 14px; background: var(--ca-input-2); border: 1px solid var(--ca-border); margin-bottom: 26px; transition: opacity .35s, max-height .45s var(--ca-ease), margin .45s var(--ca-ease); max-height: 60px; }
.auth-tabs button { position: relative; z-index: 1; background: none; border: 0; padding: 10px; font-weight: 700; font-size: .88rem; color: var(--ca-muted); cursor: pointer; transition: color .3s; border-radius: 10px; }
.auth-tabs button.on { color: #041a19; }
.tab-pill { position: absolute; top: 5px; bottom: 5px; left: 5px; width: calc(50% - 5px); border-radius: 10px; background: var(--ca-grad); box-shadow: 0 8px 24px -8px rgba(18, 214, 200, .6); transition: transform .5s var(--ca-spring); }
.auth-card[data-view="register"] .tab-pill { transform: translateX(100%); }
.auth-card:not([data-view="login"]):not([data-view="register"]) .auth-tabs { opacity: 0; max-height: 0; margin-bottom: 0; padding: 0; border-width: 0; overflow: hidden; pointer-events: none; }

/* Panels */
.panel { display: none; }
.panel.active { display: block; animation: panelIn .55s var(--ca-ease) both; }
.panel.leaving { display: block; animation: panelOut .25s ease-in both; }
@keyframes panelIn  { from { opacity: 0; transform: translateX(var(--dir, 24px)); filter: blur(3px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes panelOut { to { opacity: 0; transform: translateX(calc(var(--dir, 24px) * -1)); } }

.panel-head { margin-bottom: 22px; }
.panel-head.center { text-align: center; }
.panel-head h2 { font-size: 1.55rem; font-weight: 800; letter-spacing: -.02em; margin: 0 0 6px; }
.panel-head p { margin: 0; color: var(--ca-muted); font-size: .92rem; line-height: 1.55; }
.masked-email { color: var(--ca-strong); }

/* Fields */
.field { margin-bottom: 16px; }
.field label, .field .label { display: block; font-size: .8rem; font-weight: 700; color: var(--ca-label); margin-bottom: 7px; letter-spacing: .01em; }
.label-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 7px; }
.label-row label { margin: 0; }
.control { position: relative; display: flex; align-items: center; border-radius: 12px; background: var(--ca-input); border: 1px solid var(--ca-border); transition: border-color .25s, box-shadow .25s, background .25s; }
.control:hover { border-color: var(--ca-border-2); }
.control:focus-within { border-color: var(--ca-teal); background: rgba(18, 214, 200, .04); box-shadow: 0 0 0 4px rgba(18, 214, 200, .14); }
.control .ic { position: absolute; left: 14px; color: var(--ca-dim); transition: color .25s, transform .3s var(--ca-spring); pointer-events: none; }
.control:focus-within .ic { color: var(--ca-teal); transform: scale(1.12); }
.control input { width: 100%; background: transparent; border: 0; outline: 0; color: var(--ca-text); font: 500 .95rem 'Plus Jakarta Sans', sans-serif; padding: 13px 14px 13px 42px; border-radius: 12px; }
.control input::placeholder { color: var(--ca-placeholder); }
.control input[type="date"] { color-scheme: var(--ca-scheme); }
.control input:disabled { opacity: .45; }
.control.has-prefix input { padding-left: 76px; }
.prefix { position: absolute; left: 40px; font-size: .75rem; font-weight: 800; color: var(--ca-teal); padding: 3px 7px; border-radius: 6px; background: rgba(18, 214, 200, .1); }
.eye { position: absolute; right: 8px; background: none; border: 0; color: var(--ca-dim); width: 36px; height: 36px; border-radius: 9px; cursor: pointer; transition: color .2s, background .2s; }
.eye:hover { color: var(--ca-strong); background: var(--ca-surface-2); }
.control:has(.eye) input { padding-right: 48px; }

.field.invalid .control { border-color: var(--ca-danger); box-shadow: 0 0 0 4px rgba(255, 93, 122, .12); animation: shake .42s; }
.field.invalid .ic { color: var(--ca-danger); }
.field.valid .control { border-color: rgba(47, 227, 165, .55); }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.err { display: block; min-height: 0; color: var(--ca-danger); font-size: .78rem; font-weight: 600; margin-top: 6px; max-height: 0; opacity: 0; overflow: hidden; transition: max-height .3s var(--ca-ease), opacity .3s; }
.err.show { max-height: 60px; opacity: 1; }
.err.center { text-align: center; }
.hint { display: block; color: var(--ca-dim); font-size: .76rem; margin-top: 6px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.grid-suffix { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 0 14px; }
.field .opt { font-weight: 500; color: var(--ca-dim); font-size: .74rem; }
/* Select boxes styled like the text inputs */
.control select { width: 100%; appearance: none; -webkit-appearance: none; background: transparent; border: 0; outline: 0; color: var(--ca-text);
    font: 500 .95rem 'Plus Jakarta Sans', sans-serif; padding: 13px 38px 13px 42px; border-radius: 12px; cursor: pointer; color-scheme: var(--ca-scheme); }
.control select option { background: var(--ca-elevated); color: var(--ca-text); }
.control .caret { position: absolute; right: 14px; font-size: .8rem; color: var(--ca-dim); pointer-events: none; transition: transform .3s var(--ca-ease), color .25s; }
.control:focus-within .caret { color: var(--ca-teal); transform: rotate(180deg); }

.mini-check { display: inline-flex !important; align-items: center; gap: 6px; font-size: .76rem !important; font-weight: 600 !important; color: var(--ca-muted) !important; margin: 0 !important; cursor: pointer; }
.mini-check input { accent-color: var(--ca-teal); }

/* Segmented radio */
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.segmented label { margin: 0 !important; cursor: pointer; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 12px 8px; border-radius: 12px; border: 1px solid var(--ca-border); background: var(--ca-input); font-size: .88rem; font-weight: 600; color: var(--ca-muted); transition: all .3s var(--ca-ease); }
.segmented span:hover { border-color: var(--ca-border-2); color: var(--ca-strong); }
.segmented input:checked + span { border-color: var(--ca-teal); color: var(--ca-strong); background: rgba(18, 214, 200, .1); box-shadow: 0 0 0 4px rgba(18, 214, 200, .1); transform: translateY(-1px); }
.segmented input:focus-visible + span { outline: 2px solid var(--ca-teal); outline-offset: 2px; }
.field.invalid .segmented span { border-color: var(--ca-danger); }

/* Checkbox */
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; color: var(--ca-muted); cursor: pointer; line-height: 1.5; }
.check input { position: absolute; opacity: 0; }
.check .box { flex: 0 0 20px; height: 20px; border-radius: 6px; border: 1.5px solid var(--ca-border-2); display: grid; place-items: center; margin-top: 1px; transition: all .25s var(--ca-ease); }
.check .box i { font-size: .8rem; color: #041a19; transform: scale(0); transition: transform .3s var(--ca-spring); }
.check input:checked + .box { background: var(--ca-grad); border-color: transparent; }
.check input:checked + .box i { transform: scale(1); }
.check input:focus-visible + .box { outline: 2px solid var(--ca-teal); outline-offset: 2px; }
.check.invalid .box { border-color: var(--ca-danger); animation: shake .42s; }

/* Buttons */
.btn-ca { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; border-radius: 12px; padding: 13px 22px; font-weight: 800; font-size: .93rem; cursor: pointer; overflow: hidden; transition: transform .25s var(--ca-ease), box-shadow .3s, background .3s, opacity .3s; text-decoration: none; }
.btn-primary-ca { background: var(--ca-grad); color: #041a19; box-shadow: 0 14px 30px -14px rgba(18, 214, 200, .75); }
.btn-primary-ca::after { content: ""; position: absolute; top: 0; left: -120%; width: 60%; height: 100%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .45), transparent); transform: skewX(-20deg); transition: left .7s var(--ca-ease); }
.btn-primary-ca:hover { transform: translateY(-2px); box-shadow: 0 20px 36px -14px rgba(18, 214, 200, .85); }
.btn-primary-ca:hover::after { left: 140%; }
.btn-primary-ca:active { transform: translateY(0) scale(.98); }
.btn-ghost-ca { background: var(--ca-surface); color: var(--ca-strong); border: 1px solid var(--ca-border-2); }
.btn-ghost-ca:hover { border-color: var(--ca-purple); background: rgba(124, 58, 237, .14); transform: translateY(-1px); }
.btn-ca:focus-visible { outline: 2px solid var(--ca-strong); outline-offset: 3px; }
/* "Continue with Google" — white button per Google's sign-in branding, both themes */
.btn-google { background: #fff; color: #1f1f1f; border: 1px solid #dadce0; font-weight: 700; }
.btn-google:hover { background: #f8f9fa; border-color: #c6c9cf; transform: translateY(-1px); box-shadow: 0 10px 24px -14px rgba(0, 0, 0, .45); }
.btn-google .g-mark { flex: none; }
.or-divider { display: flex; align-items: center; gap: 12px; margin: 18px 0; color: var(--ca-muted); font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
.or-divider::before, .or-divider::after { content: ""; flex: 1; height: 1px; background: var(--ca-border-2); }
.btn-arrow { transition: transform .3s var(--ca-ease); }
.btn-ca:hover .btn-arrow { transform: translateX(4px); }
.spinner { display: none; width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid rgba(4, 26, 25, .25); border-top-color: #041a19; animation: spin .7s linear infinite; }
.btn-ca.loading { pointer-events: none; opacity: .85; }
.btn-ca.loading .spinner { display: inline-block; }
.btn-ca.loading .btn-arrow { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.link-btn { background: none; border: 0; padding: 0; color: var(--ca-teal); font-weight: 700; font-size: inherit; cursor: pointer; position: relative; }
.link-btn::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ca-ease); }
.link-btn:hover::after { transform: scaleX(1); }
.link-btn:disabled { color: var(--ca-dim); cursor: not-allowed; }
.link-btn:disabled::after { display: none; }
.label-row .link-btn { font-size: .78rem; }

.switch-line { text-align: center; color: var(--ca-muted); font-size: .88rem; margin: 20px 0 0; }
.back-inline { background: none; border: 0; color: var(--ca-muted); font-weight: 600; font-size: .84rem; cursor: pointer; display: inline-flex; gap: 8px; align-items: center; margin-bottom: 18px; padding: 0; transition: color .25s, gap .25s var(--ca-ease); }
.back-inline:hover { color: var(--ca-teal); gap: 12px; }

/* Register callout */
.register-callout { margin-top: 24px; display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: 16px;
    background: linear-gradient(120deg, rgba(124, 58, 237, .16), rgba(18, 214, 200, .08)); border: 1px solid rgba(124, 58, 237, .32); position: relative; overflow: hidden; }
.register-callout::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, .06), transparent 70%); transform: translateX(-100%); animation: sweep 4.5s ease-in-out 1.6s infinite; }
@keyframes sweep { 40%, 100% { transform: translateX(100%); } }
.callout-icon { flex: 0 0 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, var(--ca-purple), var(--ca-purple-2)); color: #fff; box-shadow: 0 8px 20px -8px rgba(124, 58, 237, .8); }
.callout-text { flex: 1; font-size: .82rem; color: var(--ca-muted); line-height: 1.45; }
.callout-text strong { display: block; color: var(--ca-strong); font-size: .9rem; }
.register-callout .btn-ghost-ca { padding: 10px 16px; font-size: .84rem; position: relative; }

/* Stepper */
.stepper { list-style: none; display: flex; justify-content: space-between; padding: 0; margin: 0 0 24px; position: relative; }
.stepper::before, .stepper::after { content: ""; position: absolute; top: 15px; left: 16px; right: 16px; height: 2px; border-radius: 2px; background: var(--ca-border); }
.stepper::after { background: var(--ca-grad-brand); right: auto; width: calc((100% - 32px) * var(--progress)); transition: width .6s var(--ca-ease); }
.stepper li { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.stepper span { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-size: .8rem; font-weight: 800; background: var(--ca-bg-2); border: 2px solid var(--ca-border-2); color: var(--ca-muted); transition: all .45s var(--ca-spring); }
.stepper em { font-style: normal; font-size: .72rem; font-weight: 700; color: var(--ca-dim); letter-spacing: .04em; transition: color .3s; }
.stepper li.active span { border-color: var(--ca-teal); color: var(--ca-teal); transform: scale(1.12); box-shadow: 0 0 0 6px rgba(18, 214, 200, .12); }
.stepper li.active em { color: var(--ca-strong); }
.stepper li.done span { background: var(--ca-grad); border-color: transparent; color: #041a19; }
.stepper li.done span { font-size: 0; }
.stepper li.done span::before { content: "\F26E"; font-family: 'bootstrap-icons'; font-size: 1rem; }

fieldset.step { border: 0; padding: 0; margin: 0; min-width: 0; display: none; }
fieldset.step.active { display: block; animation: panelIn .5s var(--ca-ease) both; }
.step-actions { display: flex; gap: 10px; margin-top: 8px; }
.step-actions #regNext { flex: 1; }

/* Password meter */
.pw-meter { margin-top: 10px; }
.pw-meter .bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.pw-meter .bar span { height: 5px; border-radius: 4px; background: var(--ca-border); position: relative; overflow: hidden; }
.pw-meter .bar span::after { content: ""; position: absolute; inset: 0; background: var(--meter-color, var(--ca-danger)); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ca-ease), background .3s; }
.pw-meter[data-score="1"] .bar span:nth-child(-n+1)::after,
.pw-meter[data-score="2"] .bar span:nth-child(-n+2)::after,
.pw-meter[data-score="3"] .bar span:nth-child(-n+3)::after,
.pw-meter[data-score="4"] .bar span:nth-child(-n+4)::after { transform: scaleX(1); }
.pw-meter[data-score="1"] { --meter-color: var(--ca-danger); }
.pw-meter[data-score="2"] { --meter-color: var(--ca-warn); }
.pw-meter[data-score="3"] { --meter-color: #7FD6FF; }
.pw-meter[data-score="4"] { --meter-color: var(--ca-success); }
.meter-label { display: block; font-size: .74rem; color: var(--ca-muted); margin: 7px 0 6px; font-weight: 700; }
.pw-meter[data-score] .meter-label { color: var(--meter-color); }
.pw-rules { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.pw-rules li { font-size: .72rem; font-weight: 600; color: var(--ca-dim); padding: 4px 9px 4px 22px; border-radius: 999px; background: var(--ca-surface); border: 1px solid var(--ca-border); position: relative; transition: all .3s var(--ca-ease); }
.pw-rules li::before { content: "\F62A"; font-family: 'bootstrap-icons'; position: absolute; left: 7px; top: 50%; transform: translateY(-50%); font-size: .75rem; }
.pw-rules li.ok { color: var(--ca-success); border-color: rgba(47, 227, 165, .35); background: rgba(47, 227, 165, .08); }
.pw-rules li.ok::before { content: "\F26E"; animation: pop .4s var(--ca-spring); }
@keyframes pop { from { transform: translateY(-50%) scale(0); } }

/* OTP */
.mail-badge { width: 68px; height: 68px; margin: 0 auto 16px; border-radius: 20px; display: grid; place-items: center; font-size: 1.8rem; color: #fff;
    background: linear-gradient(135deg, var(--ca-teal-2), var(--ca-purple)); box-shadow: 0 16px 40px -14px rgba(124, 58, 237, .8); animation: badgeIn .8s var(--ca-spring) both, float 5s ease-in-out 1s infinite; }
.mail-badge.sm { width: 52px; height: 52px; border-radius: 15px; font-size: 1.35rem; margin: 0 0 14px; }
@keyframes badgeIn { from { transform: scale(.3) rotate(-20deg); opacity: 0; } }
.otp { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-bottom: 6px; }
.otp input { width: 100%; aspect-ratio: 1 / 1.15; text-align: center; font: 800 1.5rem 'Plus Jakarta Sans', sans-serif; color: var(--ca-strong); background: var(--ca-input); border: 1px solid var(--ca-border-2); border-radius: 12px; outline: 0; caret-color: var(--ca-teal); transition: all .25s var(--ca-ease); animation: otpIn .5s var(--ca-spring) both; }
.otp input:nth-child(1) { animation-delay: .05s; } .otp input:nth-child(2) { animation-delay: .1s; } .otp input:nth-child(3) { animation-delay: .15s; }
.otp input:nth-child(4) { animation-delay: .2s; }  .otp input:nth-child(5) { animation-delay: .25s; } .otp input:nth-child(6) { animation-delay: .3s; }
@keyframes otpIn { from { opacity: 0; transform: translateY(12px) scale(.8); } }
.otp input:focus { border-color: var(--ca-teal); box-shadow: 0 0 0 4px rgba(18, 214, 200, .15); transform: translateY(-2px); }
.otp input.filled { border-color: rgba(18, 214, 200, .6); background: rgba(18, 214, 200, .07); }
.otp.invalid input { border-color: var(--ca-danger); animation: shake .42s; }
.otp.success input { border-color: var(--ca-success); background: rgba(47, 227, 165, .1); color: var(--ca-success); }
.otp-meta { display: flex; justify-content: space-between; align-items: center; margin: 14px 0 20px; font-size: .82rem; gap: 12px; flex-wrap: wrap; }
.timer { color: var(--ca-muted); display: flex; align-items: center; gap: 6px; }
.timer b { color: var(--ca-strong); font-variant-numeric: tabular-nums; }
.timer.low b { color: var(--ca-warn); }
.timer.expired { color: var(--ca-danger); font-weight: 700; }

/* Forgot steps */
.fp-step { display: none; }
.fp-step.active { display: block; animation: panelIn .5s var(--ca-ease) both; }

/* Success */
.success-block { text-align: center; padding: 10px 0 6px; }
.success-block h2 { font-size: 1.55rem; font-weight: 800; margin: 10px 0 6px; }
.success-block p { color: var(--ca-muted); margin: 0 0 14px; }
.check-anim { width: 92px; height: 92px; margin: 0 auto; display: block; }
.check-anim circle { fill: rgba(47, 227, 165, .08); stroke: var(--ca-success); stroke-width: 3; stroke-dasharray: 190; stroke-dashoffset: 190; }
.check-anim path { fill: none; stroke: var(--ca-success); stroke-width: 4.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 50; stroke-dashoffset: 50; }
.active .check-anim circle { animation: draw .7s var(--ca-ease) .1s forwards; }
.active .check-anim path { animation: draw .45s var(--ca-ease) .65s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.pid-chip { display: inline-block; font-size: 1.6rem; font-weight: 800; letter-spacing: .06em; padding: 10px 22px; border-radius: 14px; margin-bottom: 14px; background: rgba(18, 214, 200, .1); color: var(--ca-teal); border: 1px dashed rgba(18, 214, 200, .5); animation: badgeIn .7s var(--ca-spring) .8s both; }
.muted-sm { font-size: .8rem !important; }

.secure-note { text-align: center; color: var(--ca-dim); font-size: .74rem; margin: 22px 0 0; display: flex; justify-content: center; gap: 6px; align-items: center; }
.secure-note i { color: var(--ca-teal); }

/* Alert */
.ca-alert { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 12px; font-size: .85rem; font-weight: 600; margin-bottom: 18px; line-height: 1.45; animation: alertIn .45s var(--ca-spring) both; }
.ca-alert i { font-size: 1.05rem; margin-top: 1px; }
.ca-alert.error   { background: rgba(255, 93, 122, .1);  border: 1px solid rgba(255, 93, 122, .35);  color: var(--ca-err-fg); }
.ca-alert.success { background: rgba(47, 227, 165, .1);  border: 1px solid rgba(47, 227, 165, .35);  color: var(--ca-ok-fg); }
.ca-alert.info    { background: rgba(124, 58, 237, .12); border: 1px solid rgba(124, 58, 237, .4);   color: var(--ca-info-fg); }
.ca-alert.dev     { background: rgba(255, 181, 71, .1);  border: 1px dashed rgba(255, 181, 71, .5);  color: var(--ca-dev-fg); }
.ca-alert .dev-code { font-size: 1.05rem; letter-spacing: .2em; color: var(--ca-strong); }
@keyframes alertIn { from { opacity: 0; transform: translateY(-8px) scale(.97); } }

/* Toasts */
.toast-stack { position: fixed; top: 70px; right: 20px; z-index: 50; display: grid; gap: 10px; width: min(360px, calc(100vw - 32px)); }
.toast { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 14px; background: var(--ca-elevated); border: 1px solid var(--ca-border-2); box-shadow: 0 20px 40px -18px rgba(0, 0, 0, .9); backdrop-filter: blur(10px); font-size: .86rem; line-height: 1.45; animation: toastIn .5s var(--ca-spring) both; position: relative; overflow: hidden; }
.toast.out { animation: toastOut .35s ease-in forwards; }
.toast i { font-size: 1.15rem; }
.toast.success i { color: var(--ca-success); } .toast.error i { color: var(--ca-danger); } .toast.info i { color: var(--ca-teal); }
.toast::after { content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 100%; background: var(--ca-grad-brand); transform-origin: left; animation: toastBar var(--t, 4s) linear forwards; }
@keyframes toastIn  { from { opacity: 0; transform: translateX(40px) scale(.95); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(40px); } }
@keyframes toastBar { to { transform: scaleX(0); } }

/* Modal */
.ca-modal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 16px; background: rgba(5, 5, 8, .7); backdrop-filter: blur(6px); animation: fadeIn .3s both; }
.modal-card { width: 100%; max-width: 560px; max-height: 85vh; display: flex; flex-direction: column; border-radius: 20px; background: var(--ca-elevated); border: 1px solid var(--ca-border-2); box-shadow: 0 40px 80px -20px rgba(0, 0, 0, .9); animation: cardIn .5s var(--ca-spring) both; }
.modal-card header, .modal-card footer { padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; }
.modal-card header { border-bottom: 1px solid var(--ca-border); }
.modal-card footer { border-top: 1px solid var(--ca-border); justify-content: flex-end; }
.modal-card h3 { margin: 0; font-size: 1.15rem; font-weight: 800; }
.modal-x { background: var(--ca-surface); border: 1px solid var(--ca-border); width: 34px; height: 34px; border-radius: 10px; cursor: pointer; transition: background .2s, transform .3s var(--ca-ease); }
.modal-x:hover { background: var(--ca-surface-2); transform: rotate(90deg); }
.modal-body { padding: 6px 22px 18px; overflow-y: auto; color: var(--ca-muted); font-size: .9rem; line-height: 1.65; }
.modal-body h4 { color: var(--ca-strong); font-size: .95rem; margin: 18px 0 4px; }

/* ---------------- Responsive ---------------- */
@media (max-width: 991.98px) {
    .auth-shell { grid-template-columns: 1fr; }
    .brand-panel { display: none; }
    .mobile-logo { display: block; }
    .auth-side { padding: 28px 16px 40px; align-items: flex-start; }
}
@media (max-width: 480px) {
    .auth-card { padding: 26px 18px 20px; border-radius: 20px; }
    .grid-2 { grid-template-columns: 1fr; }
    .grid-suffix { grid-template-columns: 1fr; }
    .otp { gap: 7px; }
    .otp input { font-size: 1.25rem; }
    .register-callout { flex-wrap: wrap; }
    .register-callout .btn-ghost-ca { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    [data-anim] { opacity: 1; }
}