/* =====================================================================
   loader.css — لودینگ سینمایی با لوگوی SVG
   ===================================================================== */

body.is-loading {
    overflow: hidden;
}

body.is-loading .site-header,
body.is-loading .main-nav,
body.is-loading #main-content,
body.is-loading .bottom-bar-wrap,
body.is-loading .scroll-progress {
    opacity: 0;
}

.page-loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    opacity: 1;
    visibility: visible;
    background: var(--bg, #fff);
    clip-path: circle(150% at 50% 42%);
    will-change: clip-path, opacity;
}

.page-loader.is-exiting {
    animation: loaderIrisReveal 1.15s cubic-bezier(0.77, 0, 0.18, 1) forwards;
    pointer-events: none;
}

@keyframes loaderIrisReveal {
    0% {
        clip-path: circle(150% at 50% 42%);
        opacity: 1;
    }
    70% {
        opacity: 1;
    }
    100% {
        clip-path: circle(0% at 50% 42%);
        opacity: 0;
    }
}

.page-loader__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background:
        radial-gradient(900px 520px at 80% 8%, rgba(8, 76, 148, 0.16), transparent 62%),
        radial-gradient(700px 480px at 10% 92%, rgba(240, 169, 4, 0.14), transparent 60%),
        linear-gradient(180deg, var(--bg, #fff), var(--bg-soft, #f5f7fa));
    animation: loaderBgIn 0.9s ease both;
}

[data-theme="dark"] .page-loader__bg {
    background:
        radial-gradient(900px 520px at 80% 8%, rgba(36, 120, 220, 0.28), transparent 62%),
        radial-gradient(700px 480px at 10% 92%, rgba(240, 169, 4, 0.12), transparent 60%),
        linear-gradient(180deg, #061525, #081d33);
}

@keyframes loaderBgIn {
    from { opacity: 0; transform: scale(1.04); }
    to { opacity: 1; transform: scale(1); }
}

.page-loader__grid {
    position: absolute;
    inset: 0;
    opacity: 0;
    background-image:
        linear-gradient(rgba(8, 76, 148, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(8, 76, 148, 0.07) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 20%, transparent 75%);
    animation: loaderGridIn 1.2s 0.2s ease forwards;
}

@keyframes loaderGridIn {
    to { opacity: 0.5; }
}

.page-loader__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(55px);
    opacity: 0;
    animation: loaderOrbIn 1.4s ease forwards, loaderOrb 8s 1.4s ease-in-out infinite;
}
.page-loader__orb--1 {
    width: 320px;
    height: 320px;
    top: 6%;
    inset-inline-end: 4%;
    background: rgba(8, 76, 148, 0.32);
}
.page-loader__orb--2 {
    width: 260px;
    height: 260px;
    bottom: 8%;
    inset-inline-start: 6%;
    background: rgba(255, 118, 0, 0.26);
    animation-delay: 0.15s, -3s;
}

@keyframes loaderOrbIn {
    to { opacity: 1; }
}

.page-loader__content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
    padding: 1.5rem;
    text-align: center;
    animation: loaderContentIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes loaderContentIn {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* --- صحنه لوگو --- */
.page-loader__logo-stage {
    position: relative;
    width: min(72vw, 280px);
    aspect-ratio: 584 / 485;
    margin-bottom: 0.35rem;
    animation: loaderStageIn 1s cubic-bezier(0.34, 1.45, 0.64, 1) 0.1s both;
}

@keyframes loaderStageIn {
    0% {
        opacity: 0;
        transform: scale(0.55) rotate(-8deg);
    }
    70% {
        transform: scale(1.06) rotate(2deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0);
    }
}

.page-loader.is-showcase .page-loader__logo-stage {
    animation: loaderStagePulse 3.5s ease-in-out infinite;
}

@keyframes loaderStagePulse {
    0%, 100% { transform: scale(1) rotate(0); }
    35% { transform: scale(1.04) rotate(0.6deg); }
    70% { transform: scale(1.02) rotate(-0.5deg); }
}

.page-loader.is-exiting .page-loader__logo-stage {
    animation: loaderStageHeroOut 1.1s cubic-bezier(0.34, 1.35, 0.64, 1) forwards;
}

@keyframes loaderStageHeroOut {
    0% {
        opacity: 1;
        transform: scale(1.04);
        filter: drop-shadow(0 0 0 rgba(8, 76, 148, 0));
    }
    40% {
        opacity: 1;
        transform: scale(1.18);
        filter: drop-shadow(0 0 48px rgba(255, 118, 0, 0.45)) drop-shadow(0 0 60px rgba(8, 76, 148, 0.35));
    }
    100% {
        opacity: 0;
        transform: scale(1.35);
        filter: drop-shadow(0 0 80px rgba(255, 118, 0, 0));
    }
}

/* حلقه‌های orbit */
.page-loader__ring {
    position: absolute;
    inset: -18%;
    border-radius: 50%;
    border: 2px solid transparent;
    opacity: 0;
    animation: loaderRingIn 0.8s 0.5s ease forwards, loaderSpin 2.2s 0.5s linear infinite;
    pointer-events: none;
}
.page-loader__ring--outer {
    inset: -28%;
    border-width: 1px;
    border-top-color: rgba(8, 76, 148, 0.25);
    border-inline-start-color: rgba(255, 118, 0, 0.2);
    animation: loaderRingIn 0.8s 0.6s ease forwards, loaderSpinRev 3.5s 0.6s linear infinite;
}
.page-loader__ring--inner {
    inset: -10%;
    border-top-color: rgba(8, 76, 148, 0.55);
    border-inline-end-color: rgba(255, 118, 0, 0.65);
}

.page-loader__pulse {
    position: absolute;
    inset: 50% auto auto 50%;
    width: 120%;
    aspect-ratio: 1;
    margin: -60% 0 0 -60%;
    border-radius: 50%;
    border: 2px solid rgba(8, 76, 148, 0.2);
    opacity: 0;
    transform: scale(0.6);
    pointer-events: none;
}
.page-loader.is-showcase .page-loader__pulse {
    animation: loaderPulseRing 2.4s ease-out infinite;
}
.page-loader__pulse--2 {
    animation-delay: 1.2s !important;
}

@keyframes loaderRingIn {
    to { opacity: 1; }
}
@keyframes loaderSpin {
    to { transform: rotate(360deg); }
}
@keyframes loaderSpinRev {
    to { transform: rotate(-360deg); }
}
@keyframes loaderPulseRing {
    0% {
        opacity: 0.7;
        transform: scale(0.55);
    }
    100% {
        opacity: 0;
        transform: scale(1.15);
    }
}

.page-loader__logo-wrap {
    position: relative;
    width: 100%;
    height: 100%;
}

.page-loader.is-showcase .page-loader__logo-wrap {
    animation: loaderFloat 3.8s ease-in-out infinite;
}

.page-loader__logo {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.page-loader.is-showcase .page-loader__logo-inner {
    animation: loaderInnerTilt 5s ease-in-out infinite;
    transform-origin: 50% 52%;
}

@keyframes loaderInnerTilt {
    0%, 100% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(1.2deg) scale(1.01); }
    75% { transform: rotate(-1deg) scale(1.015); }
}

.page-loader__path {
    opacity: 0;
    transform-box: fill-box;
    transform-origin: center;
}

.page-loader__path--orange {
    animation:
        loaderOrangeIn 1.05s cubic-bezier(0.34, 1.55, 0.64, 1) 0.25s forwards,
        loaderOrangeIdle 2.8s 1.3s ease-in-out infinite;
}

.page-loader__path--blue {
    animation:
        loaderBlueIn 1.1s cubic-bezier(0.34, 1.45, 0.64, 1) 0.55s forwards,
        loaderBlueIdle 3.2s 1.65s ease-in-out infinite;
}

.page-loader.is-exiting .page-loader__path--orange,
.page-loader.is-exiting .page-loader__path--blue {
    animation: loaderPathFlash 0.9s ease forwards;
}

@keyframes loaderOrangeIn {
    0% {
        opacity: 0;
        transform: translateY(-55px) scale(0.7) rotate(-12deg);
    }
    60% {
        opacity: 1;
        transform: translateY(6px) scale(1.05) rotate(2deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1) rotate(0);
    }
}

@keyframes loaderBlueIn {
    0% {
        opacity: 0;
        transform: translateY(60px) scale(0.75);
    }
    55% {
        opacity: 1;
        transform: translateY(-8px) scale(1.04);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes loaderOrangeIdle {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-5px) scale(1.025); }
}

@keyframes loaderBlueIdle {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(4px) scale(1.02); }
}

@keyframes loaderPathFlash {
    0% { opacity: 1; filter: brightness(1); }
    35% { opacity: 1; filter: brightness(1.35); }
    100% { opacity: 0; transform: scale(1.08); }
}

.page-loader__shine {
    position: absolute;
    inset: -15% -35%;
    background: linear-gradient(
        105deg,
        transparent 35%,
        rgba(255, 255, 255, 0.65) 50%,
        transparent 65%
    );
    transform: translateX(-130%) skewX(-14deg);
    animation: loaderShine 2.6s ease-in-out infinite;
    pointer-events: none;
    mix-blend-mode: soft-light;
}

.page-loader.is-showcase .page-loader__shine {
    animation: loaderShine 1.8s ease-in-out infinite;
}

/* گرادیان متحرک */
.loader-stop-orange-a { animation: loaderOrangeGrad 2.5s ease-in-out infinite alternate; }
.loader-stop-blue-b { animation: loaderBlueGrad 2.8s 0.4s ease-in-out infinite alternate; }

@keyframes loaderOrangeGrad {
    to { stop-color: #FFC04D; }
}
@keyframes loaderBlueGrad {
    to { stop-color: #1A8AE8; }
}

/* متن برند */
.page-loader__brand {
    margin: 0.2rem 0 0;
    font-size: clamp(1.1rem, 3.5vw, 1.35rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    opacity: 0;
    animation: loaderBrandIn 0.7s 0.85s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.page-loader.is-showcase .page-loader__brand-novin {
    animation: loaderTextGlowBlue 2.5s ease-in-out infinite;
}
.page-loader.is-showcase .page-loader__brand-poshtiban {
    animation: loaderTextGlowOrange 2.5s 0.3s ease-in-out infinite;
}

@keyframes loaderBrandIn {
    from { opacity: 0; transform: translateY(16px); letter-spacing: 0.08em; }
    to { opacity: 1; transform: translateY(0); letter-spacing: -0.02em; }
}

@keyframes loaderTextGlowBlue {
    0%, 100% { text-shadow: 0 0 0 transparent; }
    50% { text-shadow: 0 0 18px rgba(11, 110, 208, 0.45); }
}

@keyframes loaderTextGlowOrange {
    0%, 100% { text-shadow: 0 0 0 transparent; }
    50% { text-shadow: 0 0 18px rgba(255, 118, 0, 0.5); }
}

.page-loader__brand-novin { color: #00337c; }
.page-loader__brand-poshtiban { color: #f16b00; }
[data-theme="dark"] .page-loader__brand-novin { color: #eef4fc; }

.page-loader__tagline {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 700;
    color: #00337c;
    opacity: 0;
    animation: loaderTaglineIn 0.65s 1.05s ease forwards;
}
[data-theme="dark"] .page-loader__tagline { color: #b6c6da; }

@keyframes loaderTaglineIn {
    to { opacity: 1; }
}

.page-loader__tagline::before,
.page-loader__tagline::after {
    content: "";
    display: inline-block;
    width: 28px;
    height: 1px;
    background: currentColor;
    opacity: 0.5;
    vertical-align: middle;
    margin: 0 0.45rem;
}

.page-loader__progress {
    width: min(240px, 65vw);
    height: 5px;
    margin-top: 0.5rem;
    border-radius: 6px;
    background: rgba(8, 76, 148, 0.1);
    overflow: hidden;
    opacity: 0;
    animation: loaderFadeUp 0.6s 1.15s ease forwards;
}

.page-loader__progress-bar {
    display: block;
    height: 100%;
    width: 40%;
    border-radius: inherit;
    background: linear-gradient(90deg, #0452b5, #ff7600, #0452b5);
    background-size: 200% 100%;
    animation: loaderProgress 1.6s ease-in-out infinite, loaderProgressGlow 1.6s ease-in-out infinite;
}

@keyframes loaderProgress {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(340%); }
}

@keyframes loaderProgressGlow {
    0%, 100% { box-shadow: 0 0 0 transparent; }
    50% { box-shadow: 0 0 12px rgba(255, 118, 0, 0.5); }
}

.page-loader__status {
    margin: 0.2rem 0 0;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-muted, #6b7280);
    opacity: 0;
    animation: loaderStatusIn 0.5s 1.25s ease forwards, loaderPulseText 2s 1.5s ease-in-out infinite;
}

@keyframes loaderStatusIn {
    to { opacity: 1; }
}

@keyframes loaderFadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes loaderFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes loaderShine {
    0% { transform: translateX(-130%) skewX(-14deg); }
    55%, 100% { transform: translateX(130%) skewX(-14deg); }
}

@keyframes loaderPulseText {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes loaderOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(14px, -18px) scale(1.1); }
}

/* خروج — محو متن و UI */
.page-loader.is-exiting .page-loader__brand,
.page-loader.is-exiting .page-loader__tagline,
.page-loader.is-exiting .page-loader__progress,
.page-loader.is-exiting .page-loader__status,
.page-loader.is-exiting .page-loader__ring,
.page-loader.is-exiting .page-loader__pulse {
    animation: loaderUiOut 0.35s ease forwards !important;
}

@keyframes loaderUiOut {
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

/* ورود سایت */
body.is-loaded #main-content,
body.is-loaded .site-header,
body.is-loaded .main-nav,
body.is-loaded .bottom-bar-wrap {
    animation: loaderSiteIn 0.7s 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes loaderSiteIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .page-loader.is-exiting {
        animation: loaderFadeSimple 0.3s ease forwards;
    }
    @keyframes loaderFadeSimple {
        to { opacity: 0; }
    }
    .page-loader,
    .page-loader * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
    .page-loader__path {
        opacity: 1;
        transform: none;
    }
}