/* ==========================================================================
   auth.css — صفحه‌ی مشترک ورود / ثبت‌نام (کارت دوقسمتی با اسلاید)
   Mobile-first: حالت پایه = چیده‌شده روی هم (موبایل)
   از breakpoint دسکتاپ به بعد، افکت اسلاید دو نیمه فعال می‌شود.
   ========================================================================== */

.auth-flip-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 4vw, 3rem) clamp(0.75rem, 3vw, 1.5rem);
    direction: rtl;
}

.auth-flip-card {
    position: relative;
    width: 100%;
    max-width: 460px;
    display: flex;
    flex-direction: column;
    border-radius: clamp(18px, 3vw, 28px);
    overflow: hidden;
    background: rgba(20, 16, 45, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    isolation: isolate;
}

/* ============ پنل تصویر/اورلی — همیشه position:relative ============ */
.auth-overlay-panel {
    position: relative;
    width: 100%;
    height: clamp(190px, 34vw, 250px);
    order: 1;
    overflow: hidden;
    flex-shrink: 0;
    transition: transform 0.65s cubic-bezier(0.65, 0, 0.35, 1);
}

.auth-overlay-bg {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(150deg, rgba(74, 38, 145, 0.94) 0%, rgba(9, 6, 18, 0.97) 70%);
}

.auth-overlay-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(245, 166, 35, 0.3), transparent 55%);
}

.auth-overlay-emblem {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60%;
    max-width: 220px;
    opacity: 0.18;
    z-index: 0;
    pointer-events: none;
    transform: translate(-50%, -50%) rotate(-2deg) scale(1);
    animation: authEmblemFloat 7s ease-in-out infinite;
    filter: drop-shadow(0 0 30px rgba(245, 166, 35, 0.25));
}

@keyframes authEmblemFloat {
    0%, 100% { transform: translate(-50%, -50%) rotate(-2deg) scale(1); }
    50% { transform: translate(-50%, -53%) rotate(2deg) scale(1.05); }
}

.auth-overlay-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.25rem, 4vw, 2.5rem);
}

.auth-overlay-msg {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(1.25rem, 4vw, 2.5rem);
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.5s ease 0.18s, visibility 0.5s ease 0.18s, transform 0.5s ease 0.18s;
}

.auth-overlay-to-login { opacity: 0; visibility: hidden; transform: translateY(18px); }
.auth-flip-card.mode-register .auth-overlay-to-register { opacity: 0; visibility: hidden; transform: translateY(-18px); }
.auth-flip-card.mode-register .auth-overlay-to-login { opacity: 1; visibility: visible; transform: translateY(0); }

.auth-overlay-msg > * { transition: transform 0.5s ease, opacity 0.5s ease; }
.auth-overlay-msg .auth-overlay-logo { transition-delay: 0.05s; }
.auth-overlay-msg h2 { transition-delay: 0.12s; }
.auth-overlay-msg p { transition-delay: 0.19s; }
.auth-overlay-msg .auth-switch-btn { transition-delay: 0.26s; }

.auth-overlay-logo {
    width: clamp(40px, 8vw, 60px);
    height: clamp(40px, 8vw, 60px);
    margin-bottom: clamp(0.5rem, 2vw, 1.1rem);
    filter: drop-shadow(0 0 18px rgba(245, 166, 35, 0.45));
    animation: authLogoBounce 3.2s ease-in-out infinite;
}

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

.auth-overlay-msg h2 {
    color: var(--white);
    font-size: clamp(1.05rem, 3vw, 1.5rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.auth-overlay-msg p {
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(0.8rem, 2vw, 0.92rem);
    line-height: 1.85;
    max-width: 300px;
    margin-bottom: clamp(0.85rem, 3vw, 1.5rem);
}

.auth-switch-btn {
    padding: clamp(0.6rem, 2vw, 0.8rem) clamp(1.5rem, 6vw, 2.4rem);
    border-radius: 50px;
    border: 2px solid var(--white);
    background: transparent;
    color: var(--white);
    font-weight: 700;
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    cursor: pointer;
    transition: all 0.3s ease;
}

.auth-switch-btn:hover {
    background: var(--white);
    color: var(--dark-bg);
    transform: translateY(-2px);
}

/* ============ پنل فرم‌ها — همیشه position:relative ============ */
.auth-forms-panel {
    position: relative;
    width: 100%;
    order: 2;
    transition: transform 0.65s cubic-bezier(0.65, 0, 0.35, 1);
}

.auth-form-box {
    position: relative;
    display: none;
}

.auth-login-box { display: flex; }
.auth-flip-card.mode-register .auth-login-box { display: none; }
.auth-flip-card.mode-register .auth-register-box { display: flex; }

.auth-form-scroll {
    width: 100%;
    max-height: min(70vh, 600px);
    overflow-y: auto;
    padding: clamp(1.5rem, 5vw, 2.25rem);
}

.auth-form-scroll::-webkit-scrollbar { width: 6px; }
.auth-form-scroll::-webkit-scrollbar-thumb { background: var(--primary-purple); border-radius: 10px; }

.auth-form-scroll h1 {
    font-size: clamp(1.3rem, 3.5vw, 1.65rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.35rem;
    line-height: 1.4;
}

.auth-form-scroll .auth-subtitle {
    color: var(--gray-light);
    font-size: clamp(0.82rem, 2vw, 0.9rem);
    margin-bottom: 1.5rem;
}

/* ============ فیلدهای فرم ============ */
.auth-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.1rem;
}

.auth-field { margin-bottom: 1.1rem; }

.auth-field label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 500;
    color: var(--gray-light);
    font-size: 0.86rem;
}

.auth-field .form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    color: var(--white);
    font-size: 0.94rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.auth-field .form-control:focus {
    outline: none;
    border-color: var(--primary-gold);
    background: rgba(255, 255, 255, 0.09);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.15);
}

.auth-field select.form-control option { background: #1a1a2e; color: #fff; }

.auth-date-group { display: flex; gap: 0.5rem; align-items: stretch; flex-wrap: wrap; }
.auth-date-input { direction: ltr; text-align: left; min-width: 120px; flex: 1 1 120px; }

.auth-date-btn {
    flex: 0 0 auto;
    min-width: 52px;
    padding: 0.7rem 0.55rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.06);
    color: var(--gray-light);
    font-family: inherit;
    cursor: pointer;
    font-size: 0.78rem;
}

.auth-date-btn:hover { border-color: var(--primary-gold); color: var(--primary-gold); }

.auth-help-text { display: block; margin-top: 0.4rem; color: var(--gray-light); font-size: 0.76rem; }

.auth-submit-btn {
    width: 100%;
    padding: 0.95rem;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    background: linear-gradient(135deg, var(--primary-purple) 0%, #8e54e9 100%);
    color: #fff;
    box-shadow: 0 8px 22px rgba(108, 63, 197, 0.4);
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.auth-submit-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(108, 63, 197, 0.55); }
.auth-submit-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.auth-forgot-row {
    display: flex;
    justify-content: flex-end;
    margin: -0.5rem 0 1.3rem;
}

.auth-forgot-row a {
    color: var(--primary-gold);
    text-decoration: none;
    font-size: 0.83rem;
    font-weight: 500;
}

.auth-error-message, .auth-success-message {
    border-radius: 12px;
    padding: 0.8rem 1rem;
    margin-bottom: 1.2rem;
    font-size: 0.86rem;
    text-align: center;
    font-weight: 500;
}

.auth-error-message {
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid rgba(244, 67, 54, 0.5);
    color: #ff8a80;
}

.auth-success-message {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid rgba(76, 175, 80, 0.5);
    color: #b9f6ca;
}

.datepicker-plot-area { z-index: 4000 !important; }

/* ==========================================================================
   دسکتاپ: از اینجا به بعد افکت اسلاید دو نیمه فعال می‌شود
   ========================================================================== */
@media (min-width: 900px) {
    .auth-flip-card {
        max-width: 980px;
        min-height: 620px;
        flex-direction: row;
    }

    .auth-forms-panel {
        position: absolute;
        top: 0;
        right: 0;
        width: 50%;
        height: 100%;
        z-index: 2;
    }

    .auth-overlay-panel {
        position: absolute;
        top: 0;
        left: 0;
        width: 50%;
        height: 100%;
        z-index: 3;
    }

    .auth-flip-card.mode-register .auth-forms-panel { transform: translateX(-100%); }
    .auth-flip-card.mode-register .auth-overlay-panel { transform: translateX(100%); }

    .auth-form-box {
        position: absolute;
        inset: 0;
        display: flex !important;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.45s ease, visibility 0.45s ease;
    }

    .auth-login-box { opacity: 1; visibility: visible; z-index: 2; }
    .auth-register-box { opacity: 0; visibility: hidden; z-index: 1; }
    .auth-flip-card.mode-register .auth-login-box { opacity: 0; visibility: hidden; z-index: 1; }
    .auth-flip-card.mode-register .auth-register-box { opacity: 1; visibility: visible; z-index: 2; }

    .auth-form-scroll {
        max-height: 100%;
        height: 100%;
        padding: 3rem 3rem 2.5rem;
    }

    .auth-overlay-emblem { max-width: 320px; }
}

/* موبایل‌های خیلی کوچک */
@media (max-width: 360px) {
    .auth-flip-card { max-width: 100%; border-radius: 16px; }
    .auth-form-scroll { padding: 1.25rem 1rem 1.75rem; }
    .auth-overlay-panel { height: 170px; }
}

/* کاربرانی که انیمیشن کمتر ترجیح می‌دهند */
@media (prefers-reduced-motion: reduce) {
    .auth-overlay-emblem,
    .auth-overlay-logo {
        animation: none !important;
    }
    .auth-forms-panel,
    .auth-overlay-panel,
    .auth-overlay-msg,
    .auth-overlay-msg > *,
    .auth-form-box {
        transition: none !important;
    }
}

/* ==========================================================================
   اصلاحات اختصاصی موبایل (زیر ۹۰۰px)
   دسکتاپ کاملاً دست‌نخورده می‌ماند — این بلوک فقط سایز موبایل را هدف می‌گیرد.
   ========================================================================== */
@media (max-width: 899px) {

    /* جلوگیری از زوم خودکار مرورگرهای موبایل هنگام فوکوس روی اینپوت زیر ۱۶px
       (همین زوم ناخواسته باعث می‌شد وسط انیمیشن جابه‌جایی متن، کارت از حالت درست خارج شود) */
    .auth-field .form-control,
    .auth-date-input {
        font-size: 16px;
    }

    /* حذف فلش آبی/خاکستری تپ روی دکمه‌ها و لینک‌ها برای ظاهر اپ‌مانندتر */
    .auth-switch-btn,
    .auth-submit-btn,
    .auth-date-btn,
    .auth-forgot-row a {
        -webkit-tap-highlight-color: transparent;
    }

    /* جلوگیری از درز اسکرول فرم به بیرون از کارت هنگام باز شدن کیبورد */
    .auth-form-scroll {
        overscroll-behavior: contain;
    }

    /* هماهنگ کردن پس‌زمینه‌ی Autofill مرورگر با تم تیره‌ی سایت */
    .auth-field .form-control:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px rgba(255, 255, 255, 0.06) inset;
        -webkit-text-fill-color: var(--white);
        caret-color: var(--white);
        transition: background-color 9999s ease-in-out 0s;
    }

    /* شتاب‌دهی GPU برای روان ماندن انیمیشن شناوری لوگو و جابه‌جایی متن روی موبایل */
    .auth-overlay-emblem,
    .auth-overlay-logo,
    .auth-overlay-msg {
        will-change: transform, opacity;
        backface-visibility: hidden;
    }
}