/* ==========================================================================
   Bookly — auth.css
   Login and registration screens. Depends on tokens declared in main.css.
   ========================================================================== */

.auth {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
    justify-items: center;
    padding: 32px 20px 48px;
    background:
        radial-gradient(circle at 12% 16%, var(--surface) 0, transparent 30%),
        linear-gradient(135deg, var(--bg-muted), var(--bg));
}

.auth-visual {
    display: none;
}

.auth-main {
    width: 100%;
    max-width: 380px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-topbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 100%;
    max-width: 380px;
    margin: 0 auto;
}

.auth-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    padding: 40px 36px 32px;
    box-shadow: var(--shadow-md);
    animation: rise 320ms var(--ease) both;
    box-shadow: 0 18px 42px rgba(58, 48, 42, 0.12);
}

.auth-brand {
    text-align: center;
    margin-bottom: 26px;
}

.auth-brand-lockup { display: inline-flex; align-items: center; justify-content: center; gap: 10px; }
.auth-brand-lockup img { width: 42px; height: 42px; object-fit: contain; }

.auth-brand .brand {
    font-family: var(--font-brand);
    font-size: 44px;
    font-weight: 700;
    line-height: 1.1;
}

.auth-brand p {
    color: var(--text-2);
    font-size: 13px;
    margin-top: 8px;
}

.auth-form .field {
    margin-bottom: 12px;
}

.auth-form .input {
    height: 42px;
}

.auth-submit {
    margin-top: 8px;
    background: var(--accent);
    border-radius: 8px;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 20px 0 16px;
    color: var(--text-3);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

.auth-note {
    text-align: center;
    color: var(--text-2);
    font-size: 13px;
    line-height: 1.6;
}

.auth-switch {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    padding: 20px;
    text-align: center;
    font-size: 14px;
    color: var(--text-2);
    box-shadow: var(--shadow-sm);
}

.auth-switch a {
    font-weight: 700;
    color: var(--accent);
}

.auth-switch a:hover {
    color: var(--text);
}

.auth-foot {
    text-align: center;
    color: var(--text-3);
    font-size: 12px;
    margin-top: 6px;
}

.password-field {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
}

.password-toggle:hover {
    color: var(--accent);
    background: var(--surface-2);
}

.auth-quote {
    max-width: 420px;
}

.auth-quote .brand {
    font-size: 54px;
    margin-bottom: 20px;
}

.auth-quote p {
    font-family: var(--font-brand);
    font-size: 22px;
    line-height: 1.5;
    color: var(--text-2);
}

.auth-quote .auth-quote-meta {
    font-family: var(--font);
    font-size: 13px;
    color: var(--text-3);
    margin-top: 18px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.auth-spines {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 120px;
    margin-bottom: 34px;
}

.auth-spine {
    width: 22px;
    border-radius: 3px 3px 0 0;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-bottom: 0;
    animation: rise 520ms var(--ease) both;
}

.auth-spine:nth-child(1) {
    height: 72%;
    animation-delay: 40ms;
}

.auth-spine:nth-child(2) {
    height: 92%;
    background: var(--text);
    border-color: var(--text);
    animation-delay: 90ms;
}

.auth-topbar .icon-btn:hover {
    color: var(--accent);
    background: var(--accent-soft);
}

.auth-card .input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

.auth-spine:nth-child(3) {
    height: 58%;
    animation-delay: 140ms;
}

.auth-spine:nth-child(4) {
    height: 84%;
    animation-delay: 190ms;
}

.auth-spine:nth-child(5) {
    height: 66%;
    background: var(--surface-2);
    animation-delay: 240ms;
}

.auth-spine:nth-child(6) {
    height: 96%;
    animation-delay: 290ms;
}

@media (min-width: 900px) {
    .auth {
        grid-template-columns: minmax(0, 1fr) 420px;
        gap: 56px;
        padding: 40px 48px;
        justify-items: stretch;
        align-items: center;
    }

    .auth-visual {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding-right: 24px;
    }

    .auth-main {
        max-width: 400px;
        justify-self: start;
    }

    .auth-topbar {
        max-width: 400px;
    }
}

@media (max-width: 480px) {
    .auth {
        padding: 18px 12px 32px;
    }

    .auth-card {
        padding: 32px 22px 26px;
    }

    .auth-brand .brand {
        font-size: 40px;
    }
}

.auth-card { border-color: var(--border); background: var(--surface); box-shadow: var(--shadow-md); }
.auth-switch { border-color: var(--border); background: var(--surface); box-shadow: var(--shadow-sm); }


.auth-logo .auth-brand-lockup { display: inline-flex; align-items: center; justify-content: center; gap: 10px; }
.auth-logo .auth-brand-lockup img { width: 42px; height: 42px; object-fit: contain; }

.auth-login {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.auth-login::before,
.auth-login::after {
    content: "";
    position: absolute;
    pointer-events: none;
    z-index: -1;
}

.auth-login::before {
    width: min(48vw, 620px);
    aspect-ratio: 1;
    left: -18vw;
    bottom: -34vw;
    border: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
    border-radius: 50%;
    box-shadow: 0 0 0 34px color-mix(in srgb, var(--accent) 5%, transparent),
        0 0 0 68px color-mix(in srgb, var(--accent) 3%, transparent);
    animation: auth-orbit 18s ease-in-out infinite alternate;
}

.auth-login::after {
    inset: 0;
    opacity: 0.28;
    background-image: linear-gradient(
            color-mix(in srgb, var(--border) 35%, transparent) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--border) 35%, transparent) 1px,
            transparent 1px
        );
    background-size: 42px 42px;
    mask-image: linear-gradient(135deg, black, transparent 55%);
}

.auth-login .auth-main {
    animation: auth-content-in 560ms var(--ease) both;
}

.auth-login .auth-card {
    backdrop-filter: blur(10px);
    transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease),
        border-color var(--dur) var(--ease);
}

.auth-login .auth-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.auth-kicker {
    display: block;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.auth-login .auth-brand-lockup,
.auth-login .auth-brand > p,
.auth-login .auth-form,
.auth-login .auth-divider,
.auth-login .auth-note {
    animation: auth-item-in 480ms var(--ease) both;
}

.auth-login .auth-brand-lockup { animation-delay: 80ms; }
.auth-login .auth-brand > p { animation-delay: 130ms; }
.auth-login .auth-form { animation-delay: 190ms; }
.auth-login .auth-divider { animation-delay: 260ms; }
.auth-login .auth-note { animation-delay: 300ms; }

.auth-login .field:focus-within > label {
    color: var(--accent);
}

.auth-login .input {
    min-height: 46px;
    border-color: color-mix(in srgb, var(--border) 72%, transparent);
    transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
        box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.auth-login .input:hover {
    border-color: var(--border-strong);
}

.auth-login .input:focus {
    transform: translateY(-1px);
}

.auth-login .auth-submit {
    min-height: 46px;
    box-shadow: 0 8px 18px color-mix(in srgb, var(--accent) 22%, transparent);
    transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
        transform var(--dur) var(--ease);
}

.auth-login .auth-submit:hover {
    box-shadow: 0 12px 24px color-mix(in srgb, var(--accent) 30%, transparent);
    transform: translateY(-2px);
}

.auth-login .form-message {
    min-height: 20px;
    margin-top: 8px;
}

.auth-login .auth-switch {
    animation: auth-item-in 480ms 360ms var(--ease) both;
    transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.auth-login .auth-switch:hover {
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.auth-login .auth-visual {
    animation: auth-visual-in 720ms 120ms var(--ease) both;
}

.auth-login .auth-quote {
    animation: auth-float 8s ease-in-out 900ms infinite;
}

@keyframes auth-content-in {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes auth-item-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes auth-visual-in {
    from { opacity: 0; transform: translateX(-22px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes auth-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes auth-orbit {
    from { transform: translate(0, 0) rotate(-8deg); }
    to { transform: translate(34px, -18px) rotate(8deg); }
}

@media (prefers-reduced-motion: reduce) {
    .auth-login *,
    .auth-login::before {
        animation: none !important;
        transition-duration: 0.01ms !important;
    }
}

.auth-register {
    grid-template-columns: minmax(0, 1fr);
}

.auth-register .auth-main {
    max-width: 440px;
}

.auth-register .auth-card {
    padding: clamp(28px, 5vw, 44px) clamp(22px, 6vw, 40px) clamp(26px, 4vw, 34px);
}

.auth-register .auth-brand {
    margin-bottom: clamp(22px, 4vw, 30px);
}

.auth-register .auth-brand .brand {
    font-size: clamp(36px, 6vw, 46px);
}

.auth-register .auth-switch {
    padding: 17px 20px;
}

.auth {
    height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
}

@media (max-height: 720px) and (max-width: 899px) {
    .auth {
        align-items: flex-start;
        padding: max(12px, 2.5vh) 12px 24px;
    }

    .auth-main {
        gap: 8px;
    }

    .auth-topbar {
        min-height: 28px;
    }

    .auth-card {
        padding: clamp(18px, 3vh, 28px) clamp(22px, 6vw, 34px) 20px;
    }

    .auth-brand {
        margin-bottom: 18px;
    }

    .auth-brand .brand {
        font-size: clamp(36px, 8vw, 42px);
    }

    .auth-brand p {
        margin-top: 6px;
    }

    .auth-form .field {
        margin-bottom: 10px;
    }

    .auth-login .input,
    .auth-login .auth-submit {
        min-height: 44px;
    }

    .auth-divider {
        margin: 14px 0 10px;
    }

    .auth-note {
        font-size: 12px;
        line-height: 1.45;
    }

    .auth-switch {
        padding: 15px 18px;
    }
}

@media (max-height: 760px) and (min-width: 900px) {
    .auth {
        align-items: flex-start;
        padding: 16px 32px 20px;
    }

    .auth-main {
        gap: 4px;
    }

    .auth-topbar {
        min-height: 28px;
    }

    .auth-card {
        padding: 24px 30px 10px;
    }

    .auth-brand {
        margin-bottom: 18px;
    }

    .auth-brand .brand {
        font-size: 40px;
    }

    .auth-brand p {
        margin-top: 6px;
    }

    .auth-form .field {
        margin-bottom: 10px;
    }

    .auth-login .input,
    .auth-login .auth-submit {
        min-height: 44px;
    }

    .auth-divider {
        margin: 14px 0 10px;
    }

    .auth-note {
        font-size: 12px;
        line-height: 1.45;
    }

    .auth-switch {
        padding: 14px 18px;
    }

    .auth-foot {
        display: none;
    }
}

@media (max-height: 560px) and (max-width: 899px) {
    .auth {
        padding-top: 8px;
        padding-bottom: 16px;
    }

    .auth-card {
        padding-top: 18px;
        padding-bottom: 18px;
    }

    .auth-kicker,
    .auth-divider,
    .auth-note,
    .auth-foot {
        display: none;
    }

    .auth-brand {
        margin-bottom: 14px;
    }

    .auth-brand .brand {
        font-size: 34px;
    }

    .auth-brand-lockup img {
        width: 34px;
        height: 34px;
    }

    .auth-brand p {
        font-size: 12px;
    }

    .auth-switch {
        padding: 12px 16px;
    }
}

@media (min-width: 900px) {
    .auth-register {
        padding: 40px 48px;
    }

    .auth-register .auth-main {
        width: min(100%, 440px);
        justify-self: center;
    }

    .auth-register .auth-topbar {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .auth-register {
        min-height: 100svh;
        padding: 12px 12px 24px;
    }

    .auth-register .auth-topbar {
        min-height: 40px;
    }

    .auth-register .auth-card {
        border-radius: 14px;
    }

    .auth-register .auth-switch {
        border-radius: 14px;
        font-size: 13px;
    }
}