:root {
    --bg-deep: #050505;
    --bg-dark: #121212;
    --neon-pink: #ff00cc;
    --neon-blue: #00f0ff;
    --neon-green: #00ffcc;
    --neon-pink-dim: rgba(255, 0, 204, 0.15);
    --neon-blue-dim: rgba(0, 240, 255, 0.12);
    --neon-green-dim: rgba(0, 255, 204, 0.12);
    --glass-bg: rgba(18, 18, 18, 0.55);
    --glass-border: rgba(255, 255, 255, 0.06);
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-deep);
    color: #e0e0e0;
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* ============ HEX GRID BACKGROUND ============ */
.hex-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    background:
        linear-gradient(0deg, transparent 39px, rgba(0, 240, 255, 0.025) 39px, rgba(0, 240, 255, 0.025) 40px, transparent 40px),
        linear-gradient(60deg, transparent 39px, rgba(255, 0, 204, 0.02) 39px, rgba(255, 0, 204, 0.02) 40px, transparent 40px),
        linear-gradient(-60deg, transparent 39px, rgba(0, 255, 204, 0.02) 39px, rgba(0, 255, 204, 0.02) 40px, transparent 40px);
    background-size: 80px 69.28px, 80px 69.28px, 80px 69.28px;
}

/* ============ FLOATING ORBS ============ */
.orb {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(120px);
    opacity: 0.18;
    animation: orbFloat 12s ease-in-out infinite;
}
.orb--pink {
    width: 500px;
    height: 500px;
    background: var(--neon-pink);
    top: -15%;
    left: -10%;
    animation-delay: 0s;
}
.orb--blue {
    width: 400px;
    height: 400px;
    background: var(--neon-blue);
    bottom: -12%;
    right: -8%;
    animation-delay: -5s;
    animation-duration: 15s;
}
.orb--green {
    width: 350px;
    height: 350px;
    background: var(--neon-green);
    top: 40%;
    left: 55%;
    animation-delay: -9s;
    animation-duration: 18s;
    opacity: 0.1;
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(40px, -30px) scale(1.15); }
    50% { transform: translate(-20px, 35px) scale(0.9); }
    75% { transform: translate(-35px, -20px) scale(1.1); }
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(8, 12, 22, 0.6);
    border-radius: 8px;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2b7efb 0%, #00d1ff 50%, #8a2be2 100%);
    border-radius: 8px;
    box-shadow:
        0 0 6px rgba(43, 126, 251, 0.6),
        0 0 14px rgba(138, 43, 226, 0.4);
    border: 1px solid rgba(124, 182, 255, 0.35);
    background-clip: padding-box;
    transition: filter 0.3s ease, box-shadow 0.3s ease;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #4a91ff 0%, #4ae0ff 50%, #a04df0 100%);
    box-shadow:
        0 0 10px rgba(43, 126, 251, 0.9),
        0 0 22px rgba(138, 43, 226, 0.6);
}
::-webkit-scrollbar-corner {
    background: transparent;
}

/* Firefox */
html {
    scrollbar-width: thin;
    scrollbar-color: #2b7efb rgba(8, 12, 22, 0.6);
}

/* ============ HEADER ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    transition: var(--transition);
}
.header__logo {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.6rem;
    letter-spacing: 0.08em;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}
.header__nav {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}
.header__nav a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9rem;
    color: #aaa;
    text-decoration: none;
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    transition: var(--transition);
    letter-spacing: 0.03em;
    white-space: nowrap;
    position: relative;
}
.header__nav a:hover,
.header__nav a.active {
    color: #fff;
    text-shadow: 0 0 12px var(--neon-blue);
    background: rgba(255, 255, 255, 0.04);
}
.header__nav a.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--neon-pink);
    border-radius: 2px;
    box-shadow: 0 0 8px var(--neon-pink);
}

/* Profile Dropdown */
.header__profile {
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}
.header__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    border: 2px solid transparent;
    transition: var(--transition);
}
.header__avatar:hover {
    border-color: var(--neon-blue);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4), 0 0 40px rgba(255, 0, 204, 0.25);
    transform: scale(1.05);
}
.header__dropdown {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0;
    min-width: 200px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px var(--neon-pink-dim);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 200;
}
.header__dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.header__dropdown-item {
    display: block;
    width: 100%;
    padding: 0.6rem 1.2rem;
    text-align: left;
    background: none;
    border: none;
    color: #ccc;
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.03em;
}
.header__dropdown-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    text-shadow: 0 0 6px var(--neon-blue);
}
.header__dropdown-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 0.3rem 0;
}
.header__dropdown-item--logout {
    color: #ff5577;
}
.header__dropdown-item--logout:hover {
    color: #ff3366;
    text-shadow: 0 0 8px rgba(255, 50, 80, 0.7);
}

/* Hamburger */
.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
    z-index: 110;
}
.header__hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}
.header__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header__hamburger.open span:nth-child(2) { opacity: 0; }
.header__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============ MAIN LAYOUT ============ */
.main-container {
    position: relative;
    z-index: 1;
    max-width: 1300px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}
.section {
    display: none;
    animation: fadeSlideIn 0.5s ease;
}
.section.active {
    display: block;
}
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============ HERO ============ */
.hero {
    text-align: center;
    padding: 5rem 1rem 4rem;
    position: relative;
}
.hero__title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: clamp(3.5rem, 8vw, 7rem);
    letter-spacing: 0.06em;
    background: linear-gradient(135deg, var(--neon-pink) 20%, var(--neon-blue) 50%, var(--neon-green) 80%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    animation: titlePulse 4s ease-in-out infinite;
}
@keyframes titlePulse {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}
.hero__subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: #bbb;
    letter-spacing: 0.05em;
    margin-bottom: 2.5rem;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}
.hero__buttons {
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}
.btn--primary {
    background: linear-gradient(135deg, var(--neon-pink), #cc00aa);
    color: #fff;
    box-shadow: 0 0 25px rgba(255, 0, 204, 0.45), 0 4px 20px rgba(255, 0, 204, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn--primary:hover {
    box-shadow: 0 0 45px rgba(255, 0, 204, 0.7), 0 6px 30px rgba(255, 0, 204, 0.5);
    transform: translateY(-3px);
}
.btn--secondary {
    background: transparent;
    color: #fff;
    border: 2px solid var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.25), inset 0 0 15px rgba(0, 240, 255, 0.05);
}
.btn--secondary:hover {
    box-shadow: 0 0 35px rgba(0, 240, 255, 0.55), inset 0 0 25px rgba(0, 240, 255, 0.12);
    background: rgba(0, 240, 255, 0.08);
    transform: translateY(-3px);
}
.btn--sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.8rem;
    border-radius: 30px;
}
.btn--outline {
    background: transparent;
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
    box-shadow: 0 0 10px rgba(0, 255, 204, 0.2);
}
.btn--outline:hover {
    box-shadow: 0 0 25px rgba(0, 255, 204, 0.5);
    background: rgba(0, 255, 204, 0.06);
}

/* ============ GLASS CARD ============ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.8rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 30px var(--neon-pink-dim), 0 10px 40px rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
}
.glass-card__glow-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-pink), var(--neon-blue), transparent);
    opacity: 0.6;
}

/* ============ FEATURES ============ */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0 3rem;
}
.feature-card {
    text-align: center;
    padding: 2.2rem 1.5rem;
}
.feature-card__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}
.feature-card:hover .feature-card__icon {
    border-color: var(--neon-blue);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.35);
}
.feature-card__icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--neon-blue);
    fill: none;
    stroke-width: 1.5;
}
.feature-card h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    color: #fff;
    margin-bottom: 0.5rem;
}
.feature-card p {
    font-size: 0.9rem;
    color: #999;
    letter-spacing: 0.02em;
}

/* ============ SECTION HEADING ============ */
.section-heading {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: 0.05em;
    color: #fff;
    text-align: center;
    margin-bottom: 2rem;
    text-shadow: 0 0 15px var(--neon-blue-dim);
    position: relative;
}
.section-heading::after {
    content: '';
    display: block;
    width: 180px;
    max-width: 60%;
    height: 4px;
    margin: 0.9rem auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(43, 126, 251, 0.15) 12%,
        #2b7efb 35%,
        #7cb6ff 50%,
        #8a2be2 65%,
        rgba(138, 43, 226, 0.15) 88%,
        transparent 100%);
    box-shadow:
        0 0 10px rgba(43, 126, 251, 0.55),
        0 0 22px rgba(138, 43, 226, 0.35),
        0 0 40px rgba(43, 126, 251, 0.25);
    position: relative;
    overflow: hidden;
    animation: dividerPulse 4s ease-in-out infinite;
    z-index: 2;
}
.section-heading::before {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 180px;
    max-width: 60%;
    height: 4px;
    border-radius: 999px;
    pointer-events: none;
    z-index: 3;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.9) 50%,
        transparent 100%
    );
    background-size: 40% 100%;
    background-repeat: no-repeat;
    background-position: -80% 0;
    animation: dividerShine 3.5s ease-in-out infinite;
    opacity: 0;
    mix-blend-mode: screen;
}
@keyframes dividerPulse {
    0%, 100% {
        box-shadow:
            0 0 10px rgba(43, 126, 251, 0.55),
            0 0 22px rgba(138, 43, 226, 0.35),
            0 0 40px rgba(43, 126, 251, 0.25);
    }
    50% {
        box-shadow:
            0 0 16px rgba(43, 126, 251, 0.85),
            0 0 32px rgba(138, 43, 226, 0.55),
            0 0 60px rgba(43, 126, 251, 0.4);
    }
}
@keyframes dividerShine {
    0%   { background-position: -80% 0; opacity: 0; }
    20%  { opacity: 0.9; }
    60%  { background-position: 180% 0; opacity: 0; }
    100% { background-position: 180% 0; opacity: 0; }
}

/* ============ PROFILE / CABINET ============ */
.cabinet-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 1.5rem;
    align-items: start;
}
.cabinet-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    position: sticky;
    top: 80px;
}
.cabinet-sidebar-btn {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.7rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    background: transparent;
    border: 1px solid transparent;
    color: #aaa;
    text-align: left;
    transition: var(--transition);
    letter-spacing: 0.03em;
    width: 100%;
}
.cabinet-sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.03);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.08);
}
.cabinet-sidebar-btn.active {
    background: rgba(255, 0, 204, 0.1);
    border-color: var(--neon-pink);
    color: #fff;
    box-shadow: 0 0 12px var(--neon-pink-dim);
    text-shadow: 0 0 6px var(--neon-pink);
}
.cabinet-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.cabinet-panel {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeSlideIn 0.4s ease;
}
.cabinet-panel.active {
    display: flex;
}
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.9rem;
}
.info-row__label {
    color: #888;
    letter-spacing: 0.03em;
}
.info-row__value {
    color: #ddd;
    font-weight: 500;
    letter-spacing: 0.03em;
    font-family: var(--font-heading);
    font-size: 0.8rem;
}
.badge {
    display: inline-block;
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    font-family: var(--font-body);
}
.badge--active {
    background: rgba(0, 255, 204, 0.15);
    color: var(--neon-green);
    border: 1px solid rgba(0, 255, 204, 0.3);
    box-shadow: 0 0 10px rgba(0, 255, 204, 0.2);
}
.badge--frozen {
    background: rgba(255, 150, 0, 0.15);
    color: #ff9500;
    border: 1px solid rgba(255, 150, 0, 0.3);
}

/* Progress bar */
.progress-wrap {
    margin-top: 0.8rem;
}
.progress-wrap__label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.3rem;
    letter-spacing: 0.02em;
}
.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}
.progress-bar__fill {
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
    transition: width 0.6s ease;
    box-shadow: 0 0 10px rgba(255, 0, 204, 0.5);
}
.progress-bar__fill--green {
    background: linear-gradient(90deg, var(--neon-green), #00cc99);
    box-shadow: 0 0 10px rgba(0, 255, 204, 0.5);
}

/* Input */
.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    transition: var(--transition);
    outline: none;
}
.input-field:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
    background: rgba(255, 255, 255, 0.06);
}
.input-field::placeholder {
    color: #555;
    letter-spacing: 0.05em;
}

/* Table */
.table-wrap {
    overflow-x: auto;
    margin-top: 0.5rem;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
}
table th, table td {
    padding: 0.7rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
table th {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.7rem;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
table td {
    color: #ccc;
}
table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 300;
    padding: 0.9rem 1.5rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.03em;
    color: #fff;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: none;
    font-size: 0.9rem;
}
.toast.show {
    opacity: 1;
    transform: translateY(0);
}
.toast--success {
    background: rgba(0, 200, 120, 0.9);
    border: 1px solid var(--neon-green);
    box-shadow: 0 0 25px rgba(0, 255, 204, 0.5);
}
.toast--error {
    background: rgba(220, 40, 60, 0.9);
    border: 1px solid #ff4466;
    box-shadow: 0 0 25px rgba(255, 50, 80, 0.5);
}

/* ============ TARIFFS ============ */
.tariff-toggle {
    display: flex;
    gap: 0;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 40px;
    padding: 4px;
    width: fit-content;
    margin: 0 auto 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.tariff-toggle__btn {
    padding: 0.55rem 1.6rem;
    border-radius: 40px;
    cursor: pointer;
    border: none;
    background: transparent;
    color: #aaa;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    transition: var(--transition);
    text-decoration: none;
}
.tariff-toggle__btn.active {
    background: var(--neon-pink);
    color: #fff;
    box-shadow: 0 0 20px rgba(255, 0, 204, 0.5);
}
.duration-options {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1.5rem;
}
.duration-option {
    padding: 0.6rem 1.3rem;
    border-radius: 30px;
    cursor: pointer;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ccc;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    transition: var(--transition);
    text-decoration: none;
}
.duration-option.active {
    border-color: var(--neon-blue);
    background: rgba(0, 240, 255, 0.08);
    color: #fff;
    box-shadow: 0 0 18px rgba(0, 240, 255, 0.3);
}
.duration-option:hover {
    border-color: rgba(255, 255, 255, 0.35);
}
.tariff-result {
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 2.5rem;
    color: #fff;
    letter-spacing: 0.04em;
    margin: 1.2rem 0;
    text-shadow: 0 0 20px var(--neon-pink-dim);
}
.tariff-result span {
    font-size: 1rem;
    color: #888;
    font-weight: 400;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .header__nav {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        flex-direction: column;
        background: rgba(5, 5, 5, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        justify-content: center;
        gap: 0.5rem;
        z-index: 105;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        padding: 2rem;
    }
    .header__nav.open {
        opacity: 1;
        visibility: visible;
    }
    .header__nav a {
        font-size: 1.2rem;
        padding: 0.7rem 1rem;
    }
    .header__hamburger { display: flex; }
    .cabinet-layout {
        grid-template-columns: 1fr;
    }
    .cabinet-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.4rem;
        justify-content: center;
        padding-bottom: 0.5rem;
    }
    .cabinet-sidebar-btn {
        width: auto;
        font-size: 0.78rem;
        padding: 0.5rem 0.9rem;
    }
    .features {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto;
    }
    .hero__title { font-size: 2.8rem; }
}
@media (max-width: 480px) {
    .header { padding: 0 1rem; }
    .hero__buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .duration-options { gap: 0.4rem; }
    .duration-option { padding: 0.5rem 0.9rem; font-size: 0.75rem; }
    .tariff-result { font-size: 1.8rem; }
    table th, table td { padding: 0.5rem 0.5rem; font-size: 0.7rem; }
}