/* ================================================================
   7. ПРЕЛОАДЕР
================================================================ */
.preloader {
    position: fixed;
    inset: 0;
    background: linear-gradient(160deg, #264878 0%, #2e5488 60%, #3a6ba8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    overflow: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 20;
    pointer-events: none;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
}

.preloader__content {
    text-align: center;
    position: relative;
    z-index: 10;
}

/* Слой декора — плавно появляется через opacity transition */
.preloader__decor-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.9s ease;
}

.preloader__logo {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.5rem;
    line-height: 1.35;
    text-align: center;
}

.preloader__logo span {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px) scale(0.9);
    animation: wordReveal 0.65s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    animation-delay: calc(var(--i) * 0.22s + 0.15s);
}

@keyframes wordReveal {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.preloader__bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    margin: 2rem auto 0;
    overflow: hidden;
}

.preloader__progress {
    height: 100%;
    background: var(--progress-color);
    animation: loading 2s ease forwards;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.98); }
}

@keyframes loading {
    0% { width: 0; }
    100% { width: 100%; }
}

/* ── Фоновые надписи с наклоном ── */
.preloader__bg-text {
    position: absolute;
    font-family: var(--font-display);
    font-weight: 900;
    letter-spacing: 0.04em;
    pointer-events: none;
    user-select: none;
    z-index: 1;
    white-space: nowrap;
}

.preloader__bg-text--safu {
    font-size: clamp(7rem, 16vw, 14rem);
    color: rgba(255, 255, 255, 0.045);
    top: -2%;
    left: -1%;
    animation: preloaderTextSafu 28s ease-in-out infinite;
}

@keyframes preloaderTextSafu {
    0%, 100% { transform: rotate(-13deg) translateX(0); }
    50%       { transform: rotate(-13deg) translateX(18px); }
}

.preloader__bg-text--ismart {
    font-size: clamp(4rem, 9vw, 8rem);
    color: rgba(255, 255, 255, 0.04);
    bottom: 1%;
    right: -1%;
    animation: preloaderTextIsmart 22s ease-in-out infinite;
}

@keyframes preloaderTextIsmart {
    0%, 100% { transform: rotate(9deg) translateX(0); }
    50%       { transform: rotate(9deg) translateX(-14px); }
}

.preloader__bg-text--code {
    font-size: clamp(3rem, 7vw, 6rem);
    color: rgba(91, 155, 245, 0.11);
    top: 14%;
    right: 4%;
    animation: preloaderTextCode 18s ease-in-out infinite;
}

@keyframes preloaderTextCode {
    0%, 100% { transform: rotate(-5deg) translateY(0); }
    50%       { transform: rotate(-5deg) translateY(-10px); }
}

.preloader__bg-text--it {
    font-size: clamp(9rem, 22vw, 20rem);
    color: rgba(255, 255, 255, 0.038);
    bottom: -4%;
    left: 3%;
    animation: preloaderTextIt 24s ease-in-out infinite;
}

@keyframes preloaderTextIt {
    0%, 100% { transform: rotate(6deg) translateY(0); }
    50%       { transform: rotate(6deg) translateY(-14px); }
}

/* ── Угловые скобки ── */
.preloader__corner {
    position: absolute;
    width: 36px;
    height: 36px;
    pointer-events: none;
    z-index: 2;
    opacity: 0;
    animation: preloaderFadeIn 0.6s ease forwards 0.4s,
               preloaderCornerPulse 5s ease-in-out infinite 1s;
}

.preloader__corner::before,
.preloader__corner::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.42);
}

.preloader__corner--tl { top: 20px; left: 20px; }
.preloader__corner--tl::before { width: 2px; height: 100%; top: 0; left: 0; }
.preloader__corner--tl::after  { width: 100%; height: 2px; top: 0; left: 0; }

.preloader__corner--tr { top: 20px; right: 20px; }
.preloader__corner--tr::before { width: 2px; height: 100%; top: 0; right: 0; }
.preloader__corner--tr::after  { width: 100%; height: 2px; top: 0; right: 0; }

.preloader__corner--bl { bottom: 20px; left: 20px; }
.preloader__corner--bl::before { width: 2px; height: 100%; bottom: 0; left: 0; }
.preloader__corner--bl::after  { width: 100%; height: 2px; bottom: 0; left: 0; }

.preloader__corner--br { bottom: 20px; right: 20px; }
.preloader__corner--br::before { width: 2px; height: 100%; bottom: 0; right: 0; }
.preloader__corner--br::after  { width: 100%; height: 2px; bottom: 0; right: 0; }

@keyframes preloaderFadeIn {
    from { opacity: 0; }
    to   { opacity: 0.45; }
}

@keyframes preloaderCornerPulse {
    0%, 100% { opacity: 0.45; }
    50%       { opacity: 0.7; }
}

/* ── Световые орбы ── */
.preloader__orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    filter: blur(45px);
}

.preloader__orb--1 {
    width: 220px;
    height: 220px;
    background: rgba(70, 132, 202, 0.18);
    top: 15%;
    left: 10%;
    animation: preloaderOrb1 14s ease-in-out infinite;
}

.preloader__orb--2 {
    width: 160px;
    height: 160px;
    background: rgba(45, 212, 191, 0.10);
    bottom: 18%;
    right: 12%;
    animation: preloaderOrb2 17s ease-in-out infinite;
}

.preloader__orb--3 {
    width: 130px;
    height: 130px;
    background: rgba(56, 189, 248, 0.11);
    top: 45%;
    right: 8%;
    animation: preloaderOrb3 11s ease-in-out infinite;
}

@keyframes preloaderOrb1 {
    0%, 100% { transform: translate(0, 0); }
    33%       { transform: translate(30px, -25px); }
    66%       { transform: translate(-15px, 18px); }
}

@keyframes preloaderOrb2 {
    0%, 100% { transform: translate(0, 0); }
    33%       { transform: translate(-20px, 25px); }
    66%       { transform: translate(22px, -18px); }
}

@keyframes preloaderOrb3 {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-20px); }
}

/* ── Точечные сетки ── */
.preloader__dots {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    background-size: 20px 20px;
}

.preloader__dots--1 {
    width: 120px;
    height: 120px;
    top: 8%;
    left: 5%;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.18) 2px, transparent 2px);
    animation: preloaderFloat 9s ease-in-out infinite;
}

.preloader__dots--2 {
    width: 100px;
    height: 100px;
    bottom: 8%;
    right: 5%;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.14) 2px, transparent 2px);
    animation: preloaderFloat 11s ease-in-out infinite reverse;
}

.preloader__dots--3 {
    width: 80px;
    height: 80px;
    top: 42%;
    left: 2%;
    background-image: radial-gradient(circle, rgba(91, 155, 245, 0.22) 2px, transparent 2px);
    animation: preloaderFloat 13s ease-in-out infinite;
}

/* ── Плавающие кресты ── */
.preloader__cross {
    position: absolute;
    width: 20px;
    height: 20px;
    pointer-events: none;
    z-index: 1;
}

.preloader__cross::before,
.preloader__cross::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.28);
    border-radius: 1px;
}

.preloader__cross::before {
    width: 100%;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.preloader__cross::after {
    width: 2px;
    height: 100%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.preloader__cross--1 {
    top: 18%;
    left: 10%;
    animation: preloaderFloat 7s ease-in-out infinite;
}

.preloader__cross--2 {
    bottom: 20%;
    right: 12%;
    animation: preloaderFloat 8.5s ease-in-out infinite reverse;
}

.preloader__cross--3 {
    top: 55%;
    right: 22%;
    animation: preloaderFloat 6s ease-in-out infinite;
}

.preloader__cross--4 {
    bottom: 28%;
    left: 16%;
    animation: preloaderFloat 9s ease-in-out infinite reverse;
}

/* ── Ромбы ── */
.preloader__diamond {
    position: absolute;
    width: 12px;
    height: 12px;
    background: rgba(91, 155, 245, 0.42);
    pointer-events: none;
    z-index: 1;
}

.preloader__diamond--1 {
    top: 28%;
    right: 9%;
    animation: preloaderDiamondFloat 10s ease-in-out infinite;
}

.preloader__diamond--2 {
    bottom: 32%;
    left: 8%;
    animation: preloaderDiamondFloat 6.5s ease-in-out infinite reverse;
}

.preloader__diamond--3 {
    top: 72%;
    left: 28%;
    width: 9px;
    height: 9px;
    background: rgba(45, 212, 191, 0.38);
    animation: preloaderDiamondFloat 9s ease-in-out infinite;
}

.preloader__diamond--4 {
    bottom: 22%;
    left: 12%;
    width: 10px;
    height: 10px;
    background: rgba(91, 155, 245, 0.38);
    animation: preloaderDiamondFloat 11s ease-in-out infinite;
}

.preloader__diamond--5 {
    bottom: 38%;
    left: 20%;
    width: 7px;
    height: 7px;
    background: rgba(45, 212, 191, 0.32);
    animation: preloaderDiamondFloat 7s ease-in-out infinite reverse;
}

/* ── Наклонные линии ── */
.preloader__line {
    position: absolute;
    height: 1px;
    pointer-events: none;
    z-index: 1;
}

.preloader__line--1 {
    width: 80px;
    top: 40%;
    left: 3%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    animation: preloaderLine1 8s ease-in-out infinite;
}

.preloader__line--2 {
    width: 110px;
    top: 68%;
    right: 3%;
    background: linear-gradient(90deg, transparent, rgba(91, 155, 245, 0.28), transparent);
    animation: preloaderLine2 10s ease-in-out infinite;
}

.preloader__line--3 {
    width: 55px;
    top: 22%;
    left: 32%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
    animation: preloaderLine3 7s ease-in-out infinite;
}

@keyframes preloaderLine1 {
    0%, 100% { transform: rotate(-30deg) translateX(0); opacity: 0.5; }
    50%       { transform: rotate(-30deg) translateX(12px); opacity: 1; }
}

@keyframes preloaderLine2 {
    0%, 100% { transform: rotate(18deg) translateX(0); opacity: 0.4; }
    50%       { transform: rotate(18deg) translateX(-10px); opacity: 0.9; }
}

@keyframes preloaderLine3 {
    0%, 100% { transform: rotate(-45deg); opacity: 0.3; }
    50%       { transform: rotate(-45deg) translateY(-8px); opacity: 0.8; }
}

/* ── Вертикальные линии ── */
.preloader__vline {
    position: absolute;
    width: 1px;
    pointer-events: none;
    z-index: 1;
}

.preloader__vline--1 {
    height: 80px;
    top: 10%;
    right: 22%;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.22), transparent);
    animation: preloaderVLine1 6s ease-in-out infinite;
}

.preloader__vline--2 {
    height: 60px;
    bottom: 14%;
    left: 22%;
    background: linear-gradient(to bottom, transparent, rgba(91, 155, 245, 0.30), transparent);
    animation: preloaderVLine2 8s ease-in-out infinite;
}

.preloader__vline--3 {
    height: 70px;
    bottom: 32%;
    left: 7%;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.18), transparent);
    animation: preloaderVLine1 10s ease-in-out infinite reverse;
}

@keyframes preloaderVLine1 {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50%       { transform: translateY(-15px); opacity: 1; }
}

@keyframes preloaderVLine2 {
    0%, 100% { transform: translateY(0); opacity: 0.4; }
    50%       { transform: translateY(12px); opacity: 0.9; }
}

/* ── Декор у надписи 09.03.01 (top ~14%, right ~4%) ── */
.preloader__code-decor {
    position: absolute;
    pointer-events: none;
    z-index: 2;
}

/* Горизонтальная линия под текстом */
.preloader__code-decor--1 {
    width: 60px;
    height: 1px;
    top: 23%;
    right: 3%;
    background: linear-gradient(90deg, transparent, rgba(91, 155, 245, 0.48), transparent);
    animation: preloaderLine2 9s ease-in-out infinite;
}

/* Маленький ромб левее текста */
.preloader__code-decor--2 {
    width: 7px;
    height: 7px;
    top: 12%;
    right: 14%;
    background: rgba(56, 189, 248, 0.5);
    transform: rotate(45deg);
    animation: preloaderDiamondFloat 8s ease-in-out infinite;
}

/* Крест правее/ниже ромба */
.preloader__code-decor--3 {
    width: 16px;
    height: 16px;
    top: 20%;
    right: 13%;
    animation: preloaderFloat 10s ease-in-out infinite reverse;
}

.preloader__code-decor--3::before,
.preloader__code-decor--3::after {
    content: '';
    position: absolute;
    background: rgba(91, 155, 245, 0.38);
}

.preloader__code-decor--3::before {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

.preloader__code-decor--3::after {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

/* ── Общие анимации ── */
@keyframes preloaderFloat {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-12px); }
}

@keyframes preloaderDiamondFloat {
    0%, 100% { transform: translateY(0) rotate(45deg); }
    50%       { transform: translateY(-10px) rotate(45deg); }
}

/* ── Ожидание шрифтов: всё заморожено до класса .preloader--ready ── */

/* Все анимации декора и текста на паузе */
.preloader__logo span,
.preloader__bg-text,
.preloader__corner,
.preloader__orb,
.preloader__dots,
.preloader__cross,
.preloader__diamond,
.preloader__line,
.preloader__vline,
.preloader__code-decor,
.preloader__progress {
    animation-play-state: paused;
}

/* Полоска скрыта */
.preloader__bar {
    opacity: 0;
}

/* ── Шрифты готовы: запускаем всё разом ── */

/* Декоративный слой плавно появляется (transition задан на .preloader__decor-layer) */
.preloader--ready .preloader__decor-layer {
    opacity: 1;
}

/* Все анимации стартуют */
.preloader--ready .preloader__logo span,
.preloader--ready .preloader__bg-text,
.preloader--ready .preloader__corner,
.preloader--ready .preloader__orb,
.preloader--ready .preloader__dots,
.preloader--ready .preloader__cross,
.preloader--ready .preloader__diamond,
.preloader--ready .preloader__line,
.preloader--ready .preloader__vline,
.preloader--ready .preloader__code-decor {
    animation-play-state: running;
}

/* Полоска появляется через animation (надёжнее transition в этом контексте),
   заполняется за 1.46s — синхронно с текстом (последнее слово: ~1.46s) */
.preloader--ready .preloader__bar {
    animation: preloaderBarAppear 0.3s ease forwards;
}

.preloader--ready .preloader__progress {
    animation: loading 1.46s linear forwards;
}

@keyframes preloaderBarAppear {
    from { opacity: 0; }
    to   { opacity: 1; }
}