* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #080b10;
    --card: rgba(17, 22, 29, 0.88);
    --input: rgba(11, 15, 21, 0.9);
    --border: #27313d;
    --text: #ffffff;
    --muted: #8995a3;
    --green: #00ff88;
    --blue: #0099ff;
    --red: #ff3d81;
}

html,
body {
    width: 100%;
    min-height: 100%;
}

body {
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;

    background:
        radial-gradient(
            circle at 50% 0%,
            rgba(0, 255, 136, 0.05),
            transparent 35%
        ),
        var(--bg);

    color: var(--text);

    min-height: 100vh;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 24px;

    overflow: hidden;
}

/* =========================
   BACKGROUND
========================= */

.background-effects {
    position: fixed;
    inset: 0;

    pointer-events: none;

    overflow: hidden;

    z-index: 0;
}

.glow-orb {
    position: absolute;

    border-radius: 50%;

    filter: blur(10px);

    animation: float 7s ease-in-out infinite;
}

.glow-orb-1 {
    width: 420px;
    height: 420px;

    left: -180px;
    top: -120px;

    background:
        radial-gradient(
            circle,
            rgba(0, 255, 136, 0.12),
            transparent 70%
        );
}

.glow-orb-2 {
    width: 320px;
    height: 320px;

    right: -140px;
    bottom: -80px;

    background:
        radial-gradient(
            circle,
            rgba(0, 153, 255, 0.12),
            transparent 70%
        );

    animation-delay: -2s;
}

.glow-orb-3 {
    width: 180px;
    height: 180px;

    left: 12%;
    bottom: 8%;

    background:
        radial-gradient(
            circle,
            rgba(255, 0, 128, 0.05),
            transparent 70%
        );

    animation-delay: -4s;
}

/* =========================
   CONTAINER
========================= */

.login-container {
    width: 100%;
    max-width: 430px;

    position: relative;
    z-index: 10;
}

/* =========================
   CARD
========================= */

.login-card {
    position: relative;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 20px;

    padding: 42px;

    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.02);

    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);

    overflow: hidden;

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease,
        border-color 0.3s ease;
}

.login-card::before {
    content: "";

    position: absolute;

    top: 0;
    left: 10%;
    right: 10%;

    height: 1px;

    background:
        linear-gradient(
            90deg,
            transparent,
            var(--green),
            var(--blue),
            transparent
        );

    opacity: 0.8;

    box-shadow:
        0 0 15px rgba(0, 255, 136, 0.4);
}

.login-card:hover {
    transform: translateY(-2px);

    border-color: rgba(0, 255, 136, 0.18);

    box-shadow:
        0 35px 90px rgba(0, 0, 0, 0.5),
        0 0 50px rgba(0, 255, 136, 0.06);
}

/* =========================
   HEADER
========================= */

.login-header {
    text-align: center;

    margin-bottom: 34px;
}

.logo-mark {
    width: 64px;
    height: 64px;

    margin: 0 auto 18px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 16px;

    background:
        linear-gradient(
            135deg,
            rgba(0, 255, 136, 0.16),
            rgba(0, 153, 255, 0.16)
        );

    border: 1px solid rgba(0, 255, 136, 0.25);

    color: var(--green);

    font-size: 20px;
    font-weight: 800;

    letter-spacing: -0.05em;

    box-shadow:
        0 0 30px rgba(0, 255, 136, 0.12);

    animation: logoPulse 2.5s ease-in-out infinite alternate;
}

.login-header h1 {
    color: #fff;

    font-size: 22px;
    font-weight: 700;

    letter-spacing: 0.02em;

    margin-bottom: 5px;
}

.system-name {
    color: var(--muted);

    font-size: 13px;

    letter-spacing: 0.08em;

    text-transform: uppercase;
}

.welcome {
    margin-top: 30px;
}

.welcome h2 {
    color: #fff;

    font-size: 27px;
    font-weight: 600;

    margin-bottom: 7px;

    letter-spacing: -0.02em;
}

.welcome p {
    color: var(--muted);

    font-size: 14px;

    line-height: 1.5;
}

/* =========================
   ERROR
========================= */

.server-error {
    display: flex;
    align-items: center;

    gap: 10px;

    margin-bottom: 22px;

    padding: 12px 14px;

    border-radius: 10px;

    background: rgba(255, 61, 129, 0.08);

    border: 1px solid rgba(255, 61, 129, 0.25);

    color: #ff8bb5;

    font-size: 13px;

    animation: shake 0.4s ease;
}

.error-icon {
    width: 20px;
    height: 20px;

    flex: 0 0 20px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;

    background: rgba(255, 61, 129, 0.15);

    color: var(--red);

    font-weight: 700;
}

/* =========================
   FORM
========================= */

.form-group {
    margin-bottom: 23px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;

    height: 60px;

    padding:
        23px
        48px
        7px
        16px;

    border:
        1px solid
        var(--border);

    border-radius: 10px;

    outline: none;

    background: var(--input);

    color: #fff;

    font-size: 15px;

    transition:
        border-color 0.25s ease,
        box-shadow 0.25s ease,
        background 0.25s ease;
}

.input-wrapper input:focus {
    border-color: var(--green);

    background: rgba(10, 16, 21, 0.95);

    box-shadow:
        0 0 0 3px rgba(0, 255, 136, 0.08),
        0 0 25px rgba(0, 255, 136, 0.07);
}

.input-wrapper label {
    position: absolute;

    left: 16px;
    top: 19px;

    color: var(--muted);

    font-size: 14px;

    pointer-events: none;

    transform-origin: left top;

    transition:
        transform 0.25s ease,
        color 0.25s ease;
}

.input-wrapper input:focus + label,
.input-wrapper input:not(:placeholder-shown) + label,
.input-wrapper input:valid + label {
    transform:
        translateY(-11px)
        scale(0.78);

    color: var(--green);
}

/*
    Placeholder нужен пустой,
    чтобы CSS не показывал его.
*/
.input-wrapper input::placeholder {
    color: transparent;
}

.input-line {
    position: absolute;

    bottom: 0;
    left: 50%;

    width: 0;
    height: 2px;

    transform: translateX(-50%);

    border-radius: 10px;

    background:
        linear-gradient(
            90deg,
            var(--green),
            var(--blue)
        );

    transition: width 0.3s ease;
}

.input-wrapper input:focus ~ .input-line {
    width: 100%;
}

/* =========================
   PASSWORD
========================= */

.password-wrapper input {
    padding-right: 52px;
}

.password-toggle {
    position: absolute;

    top: 50%;
    right: 10px;

    width: 38px;
    height: 38px;

    transform: translateY(-50%);

    display: flex;
    align-items: center;
    justify-content: center;

    border: 0;
    border-radius: 8px;

    background: transparent;

    cursor: pointer;

    color: var(--muted);
}

.password-toggle:hover {
    background: rgba(0, 255, 136, 0.08);

    color: var(--green);
}

.toggle-icon {
    width: 19px;
    height: 19px;

    position: relative;

    display: block;
}

.toggle-icon::before {
    content: "◉";

    position: absolute;

    inset: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 16px;
}

.toggle-icon.show-password::before {
    content: "◌";
}

/* =========================
   OPTIONS
========================= */

.form-options {
    display: flex;
    align-items: center;

    margin: 4px 0 28px;
}

.remember-wrapper {
    display: flex;
    align-items: center;

    gap: 9px;

    cursor: pointer;

    color: var(--muted);

    font-size: 13px;

    user-select: none;
}

.remember-wrapper input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.custom-checkbox {
    width: 17px;
    height: 17px;

    border: 1px solid var(--border);

    border-radius: 5px;

    display: flex;
    align-items: center;
    justify-content: center;

    transition: 0.25s ease;
}

.remember-wrapper input:checked + .custom-checkbox {
    border-color: var(--green);

    background: rgba(0, 255, 136, 0.1);

    box-shadow:
        0 0 12px rgba(0, 255, 136, 0.2);
}

.remember-wrapper input:checked + .custom-checkbox::after {
    content: "✓";

    color: var(--green);

    font-size: 12px;

    font-weight: 800;
}

/* =========================
   BUTTON
========================= */

.login-btn {
    width: 100%;
    height: 58px;

    position: relative;

    overflow: hidden;

    border: 0;
    border-radius: 10px;

    background:
        linear-gradient(
            135deg,
            var(--green),
            var(--blue)
        );

    color: #06100b;

    font-size: 14px;

    font-weight: 800;

    letter-spacing: 0.06em;

    text-transform: uppercase;

    cursor: pointer;

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.login-btn:hover {
    transform: translateY(-1px);

    box-shadow:
        0 12px 30px rgba(0, 255, 136, 0.2),
        0 0 35px rgba(0, 255, 136, 0.1);
}

.login-btn:active {
    transform: translateY(0);
}

.btn-glow {
    position: absolute;

    top: 0;
    left: -100%;

    width: 100%;
    height: 100%;

    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.35),
            transparent
        );

    transition: left 0.55s ease;
}

.login-btn:hover .btn-glow {
    left: 100%;
}

.btn-loader {
    position: absolute;

    top: 50%;
    left: 50%;

    width: 21px;
    height: 21px;

    margin:
        -10.5px
        0
        0
        -10.5px;

    border:
        2px solid
        rgba(6, 16, 11, 0.25);

    border-top-color: #06100b;

    border-radius: 50%;

    opacity: 0;

    animation: spin 0.8s linear infinite;
}

.login-btn.loading {
    pointer-events: none;
}

.login-btn.loading .btn-text {
    opacity: 0;
}

.login-btn.loading .btn-loader {
    opacity: 1;
}

/* =========================
   FOOTER
========================= */

.login-footer {
    display: flex;
    align-items: center;
    justify-content: center;

    gap: 8px;

    margin-top: 28px;

    color: #56616e;

    font-size: 11px;

    letter-spacing: 0.04em;
}

.footer-dot {
    color: #303943;
}

/* =========================
   FOCUS
========================= */

:focus-visible {
    outline:
        2px solid
        var(--green);

    outline-offset: 3px;
}

/* =========================
   ANIMATIONS
========================= */

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes float {
    0%,
    100% {
        transform:
            translate(0, 0);
    }

    33% {
        transform:
            translate(15px, -20px);
    }

    66% {
        transform:
            translate(-10px, 15px);
    }
}

@keyframes logoPulse {
    from {
        box-shadow:
            0 0 20px
            rgba(0, 255, 136, 0.08);
    }

    to {
        box-shadow:
            0 0 35px
            rgba(0, 255, 136, 0.18);
    }
}

@keyframes shake {
    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* =========================
   MOBILE
========================= */

@media (max-width: 480px) {

    body {
        padding: 15px;
    }

    .login-card {
        padding: 30px 22px;
        border-radius: 16px;
    }

    .logo-mark {
        width: 56px;
        height: 56px;

        font-size: 18px;
    }

    .login-header h1 {
        font-size: 20px;
    }

    .welcome h2 {
        font-size: 24px;
    }

    .glow-orb {
        opacity: 0.5;
    }
}

/* =========================
   REDUCED MOTION
========================= */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}