/* Shikkhon — authentication pages (login, register, password reset) */
:root {
    --sk-primary: #4F46E5;
    --sk-primary-dark: #3730A3;
    --sk-secondary: #2563EB;
    --sk-accent: #06B6D4;
    --sk-bg: #F8FAFC;
    --sk-heading: #1E1B4B;
    --sk-ink: #0F172A;
    --sk-text: #475569;
    --sk-muted: #64748B;
    --sk-border: #E2E8F0;
    --sk-soft: #EEF2FF;
    --sk-danger: #DC2626;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body.sk-auth {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 15px;
    color: var(--sk-text);
    background: var(--sk-bg);
    -webkit-font-smoothing: antialiased;
}
.sk-auth a { text-decoration: none; }

.sk-auth-shell {
    display: grid;
    grid-template-columns: minmax(420px, 46%) 1fr;
    min-height: 100vh;
}

/* ---------- Brand panel ---------- */
.sk-auth-aside {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 40px 56px;
    color: #fff;
    overflow: hidden;
    isolation: isolate;
    background:
        radial-gradient(700px 480px at 90% 10%, rgba(37, 99, 235, .55), transparent 60%),
        radial-gradient(600px 420px at 0% 100%, rgba(6, 182, 212, .35), transparent 60%),
        linear-gradient(145deg, #1E1B4B 0%, #312E81 50%, #4F46E5 100%);
}
.sk-auth-aside::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: var(--sk-aside-image, none);
    background-size: cover;
    background-position: center;
    opacity: .18;
    mix-blend-mode: luminosity;
}
.sk-auth-aside::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(600px 420px at 60% 55%, #000, transparent);
            mask-image: radial-gradient(600px 420px at 60% 55%, #000, transparent);
}
.sk-auth-brand img { height: 46px; width: auto; }
.sk-auth-aside-body { margin: auto 0; max-width: 520px; }
.sk-auth-aside h2 {
    font-family: "Plus Jakarta Sans", "Inter", sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 2.6vw, 40px);
    line-height: 1.12;
    letter-spacing: -.02em;
    color: #fff;
    margin: 0 0 16px;
}
.sk-auth-aside p { color: #C7D2FE; font-size: 16px; line-height: 1.6; margin: 0; }
.sk-auth-aside-foot { font-size: 13px; color: #A5B4FC; }

/* product preview */
.sk-auth-preview { position: relative; margin-top: 44px; max-width: 440px; }
.sk-preview-card {
    background: rgba(255, 255, 255, .97);
    border-radius: 18px;
    padding: 20px;
    color: var(--sk-ink);
    box-shadow: 0 30px 60px rgba(15, 23, 42, .35);
}
.sk-preview-head { display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-family: "Plus Jakarta Sans", sans-serif; }
.sk-pill { font: 600 11px Inter, sans-serif; color: #059669; background: #ECFDF5; padding: 4px 10px; border-radius: 999px; }
.sk-preview-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.sk-preview-stats div { background: var(--sk-soft); border-radius: 12px; padding: 10px 12px; }
.sk-preview-stats div:nth-child(2) { background: #EFF6FF; }
.sk-preview-stats div:nth-child(3) { background: #ECFEFF; }
.sk-preview-stats small { display: block; font-size: 11px; color: var(--sk-muted); }
.sk-preview-stats b { font: 800 20px "Plus Jakarta Sans", sans-serif; color: var(--sk-primary-dark); }
.sk-preview-bars { display: flex; align-items: flex-end; gap: 10px; height: 96px; margin-top: 18px; border-bottom: 2px solid var(--sk-border); }
.sk-preview-bars i { flex: 1; border-radius: 6px 6px 0 0; background: linear-gradient(180deg, #A5B4FC, #6366F1); }
.sk-preview-bars i.accent { background: linear-gradient(180deg, #67E8F9, #06B6D4); }
.sk-preview-toast {
    position: absolute;
    right: -24px;
    bottom: -26px;
    display: flex;
    gap: 12px;
    align-items: center;
    background: #fff;
    color: var(--sk-ink);
    border-radius: 14px;
    padding: 12px 16px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, .3);
}
.sk-toast-icon { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--sk-primary), var(--sk-secondary)); }
.sk-preview-toast b { display: block; font-size: 13px; }
.sk-preview-toast small { font-size: 12px; color: var(--sk-muted); }

/* ---------- Form side ---------- */
.sk-auth-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
}
.sk-auth-card { width: 100%; max-width: 440px; }
.sk-auth-logo { display: none; margin-bottom: 28px; }
.sk-auth-logo img { height: 48px; width: auto; }
.sk-auth-heading { margin-bottom: 28px; }
.sk-auth-heading h1 {
    font-family: "Plus Jakarta Sans", "Inter", sans-serif;
    font-weight: 800;
    font-size: 30px;
    letter-spacing: -.02em;
    color: var(--sk-heading);
    margin: 0 0 8px;
}
.sk-auth-heading p { margin: 0; color: var(--sk-muted); }
.sk-auth-icon {
    display: inline-grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    margin-bottom: 18px;
    color: var(--sk-primary);
    background: var(--sk-soft);
    font-size: 22px;
}

.sk-form { display: grid; gap: 18px; }
.sk-field label { display: block; font-weight: 600; font-size: 14px; color: var(--sk-heading); margin-bottom: 7px; }
.sk-req { color: var(--sk-danger); }
.sk-input { position: relative; }
.sk-input > i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #94A3B8;
    font-size: 16px;
    pointer-events: none;
}
.sk-input input,
.sk-input select {
    width: 100%;
    height: 48px;
    padding: 0 44px 0 44px;
    border: 1.5px solid var(--sk-border);
    border-radius: 12px;
    background: #fff;
    color: var(--sk-ink);
    font: 500 15px Inter, sans-serif;
    transition: border-color .2s, box-shadow .2s;
    -webkit-appearance: none;
    appearance: none;
}
.sk-input select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}
.sk-input input::placeholder { color: #94A3B8; font-weight: 400; }
.sk-input input:focus, .sk-input select:focus {
    outline: none;
    border-color: var(--sk-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, .12);
}
.sk-input:focus-within > i { color: var(--sk-primary); }
.sk-toggle-password {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #94A3B8;
    cursor: pointer;
}
.sk-toggle-password:hover { color: var(--sk-primary); background: var(--sk-soft); }
.sk-error { display: block; margin-top: 6px; font-size: 13px; color: var(--sk-danger); }
.sk-alert { padding: 12px 14px; margin-bottom: 18px; border-radius: 12px; background: #FEF2F2; color: var(--sk-danger); font-size: 14px; }
.sk-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.sk-form-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.sk-check { display: inline-flex; align-items: center; gap: 9px; margin: 0; cursor: pointer; font-size: 14px; color: var(--sk-text); }
.sk-check input { width: 18px; height: 18px; accent-color: var(--sk-primary); margin: 0; }
.sk-link { color: var(--sk-primary); font-weight: 600; font-size: 14px; }
.sk-link:hover { color: var(--sk-primary-dark); text-decoration: underline; }

.sk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 50px;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--sk-primary), var(--sk-secondary));
    color: #fff;
    font: 700 15px Inter, sans-serif;
    cursor: pointer;
    box-shadow: 0 12px 26px rgba(79, 70, 229, .28);
    transition: transform .15s, box-shadow .2s, filter .2s;
}
.sk-btn:hover { filter: brightness(1.06); box-shadow: 0 16px 32px rgba(79, 70, 229, .34); }
.sk-btn:active { transform: translateY(1px); }
.sk-btn[disabled] { opacity: .7; cursor: wait; }

.sk-divider { display: flex; align-items: center; gap: 12px; margin: 28px 0 16px; color: var(--sk-muted); font-size: 13px; }
.sk-divider::before, .sk-divider::after { content: ""; flex: 1; height: 1px; background: var(--sk-border); }
.sk-demo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.sk-demo-grid form { margin: 0; }
.sk-btn-ghost {
    display: block;
    width: 100%;
    padding: 9px 10px;
    border: 1.5px solid var(--sk-border);
    border-radius: 10px;
    background: #fff;
    color: var(--sk-heading);
    font: 600 13px Inter, sans-serif;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
}
.sk-btn-ghost:hover { border-color: var(--sk-primary); color: var(--sk-primary); background: var(--sk-soft); }
.sk-auth-foot { margin: 24px 0 0; text-align: center; font-size: 14px; color: var(--sk-muted); }

/* ---------- Responsive ---------- */
@media (max-width: 991px) {
    .sk-auth-shell { grid-template-columns: 1fr; }
    .sk-auth-aside { display: none; }
    .sk-auth-logo { display: inline-block; }
    .sk-auth-main { padding: 40px 16px; justify-content: flex-start; }
    .sk-auth-card { background: #fff; border: 1px solid var(--sk-border); border-radius: 20px; padding: 32px 24px; box-shadow: 0 10px 30px rgba(15, 23, 42, .06); }
}
@media (max-width: 480px) {
    .sk-grid-2 { grid-template-columns: 1fr; }
    .sk-auth-heading h1 { font-size: 26px; }
}

/* RTL */
.rtl .sk-input > i { left: auto; right: 15px; }
.rtl .sk-toggle-password { right: auto; left: 8px; }
.rtl .sk-input select { background-position: left 16px center; }
.rtl .sk-preview-toast { right: auto; left: -24px; }