/* International-grade polish */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --bg-900: #0f1724;
    --card: #ffffff;
    --text: #333333;
    --accent: #6c757d;
    --up: #28a745;
    --down: #dc3545;
    --shadow: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'SolaimanLipi', sans-serif;
    background: radial-gradient(1200px 600px at 10% 10%, rgba(16, 185, 129, 0.06), transparent 6%),
        radial-gradient(1000px 500px at 90% 90%, rgba(6, 182, 212, 0.04), transparent 8%),
        var(--bg-900);
    color: var(--text);
    margin: 0;
    padding: 0;
    transition: background 0.4s, color 0.4s;
}

.container {
    max-width: 960px;
    margin: 0 auto;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 4px 12px var(--shadow);
}

h2 {
    text-align: center;
    margin-bottom: 30px;
}

.price-up {
    color: var(--up) !important;
    font-weight: bold;
}

.price-down {
    color: var(--down) !important;
    font-weight: bold;
}

.buy-btn {
    background: linear-gradient(to right, #6a737b, #495057);
    border: 2px solid #82c9bbcf;
    color: #fff;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    text-transform: uppercase;
    box-shadow: 0 6px 12px rgba(108, 117, 125, 0.3);
    transition: all 0.3s ease-in-out;
    position: relative;
    overflow: hidden;
    font-family: 'SolaimanLipi', sans-serif;
}

.buy-btn::before {
    content: '';
    position: absolute;
    width: 0%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.15);
    transition: width 0.4s ease;
    z-index: 0;
}

.buy-btn:hover::before {
    width: 100%;
}

.buy-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(22, 160, 133, 0.4);
}

.buy-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 300%;
    height: 300%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: transform 0.4s ease, opacity 0.4s ease;
    opacity: 0;
}

.buy-btn:hover::after {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.buy-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 200, 83, 0.4);
}

.buy-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 20px rgba(0, 200, 83, 0.5);
}

.buy-btn:hover {
    transform: scale(1.05);
}

.footer-note {
    margin: 40px 0;
    font-size: 15px;
    text-align: center;
    color: gray;
}

@media (max-width: 600px) {

    th,
    td {
        padding: 12px 10px;
    }

    .theme-toggle {
        padding: 8px 12px;
        font-size: 14px;
    }
}

.change {
    transition: background-color 0.4s ease, transform 0.3s ease;
    border-radius: 6px;
}

.price-up.animate,
.price-down.animate {
    animation: pricePulse 0.6s ease;
}

@keyframes pricePulse {
    0% {
        transform: scale(1);
        background-color: #e0f7e9;
    }

    50% {
        transform: scale(1.1);
        background-color: #ccf3e0;
    }

    100% {
        transform: scale(1);
        background-color: transparent;
    }
}

.price {
    transition: background-color 0.4s ease, transform 0.3s ease;
    border-radius: 6px;
}

.price.animate {
    animation: priceFlash 0.6s ease;
}

@keyframes priceFlash {
    0% {
        transform: scale(1);
        background-color: #e6f7ff;
    }

    50% {
        transform: scale(1);
        background-color: #d0efff;
    }

    100% {
        transform: scale(1);
        background-color: transparent;
    }
}

.offcanvas {
    padding: 0;
    background: unset;
    color: white;
    text-align: center;
    font-size: 22px;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
    width: auto !important;
}

.chart-container {
    max-width: 100%;
    margin: auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    padding: 10px;
}

.form_icon {
    background: unset;
    border: 1px solid #5d656d;
    color: #ddd;
}

.form_input {
    background: unset;
    border: 1px solid #5d656d;
    color: #ddd;
}

.form_input:focus,
form_input:active {
    background: unset;
    border: 1px solid #5d656d;
    color: #ccc;
    box-shadow: unset;
}

.form_input::placeholder {
    color: #ccc;
}


.modal-title {
    text-align: center;
    font-size: 15px;
    font-weight: bold;
    color: #fff;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    margin-bottom: 20px;
    font-weight: 500;
    gap: 5px;
}

.total-output {
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    margin: 10px 0;
}

.confirm-btn {
    background: linear-gradient(90deg, #10b981, #22d3ee);
    ;
    color: #000;
    border: none;
    padding: 9px;
    width: 100%;
    font-size: 15px;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.confirm-btn:hover {
    color: #fff;
}

.confirm-btn:disabled {
    cursor: no-drop;
}


.register-container {
    width: 100%;
    max-width: 620px;
    background: linear-gradient(to bottom right, #bfbfbf, #d3d3d3);
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.8s ease forwards;
}

.register-container h2 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 24px;
    color: #222;
}

.register-container label {
    font-weight: bold;
    font-size: 15px;
    margin: 10px 0 5px;
    display: block;
    color: #333;
}

.register-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    box-sizing: border-box;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.register-container button {
    width: 100%;
    padding: 13px;
    background: linear-gradient(to right, #6a737b, #495057);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.register-container button:hover {
    background: #666;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translateY(20px) translateX(-50%);
    }

    10% {
        opacity: 1;
        transform: translateY(0) translateX(-50%);
    }

    90% {
        opacity: 1;
        transform: translateY(0) translateX(-50%);
    }

    100% {
        opacity: 0;
        transform: translateY(20px) translateX(-50%);
    }
}

@media (max-width: 600px) {
    .register-container {
        width: 100%;
        margin: 20px auto;
        padding: 20px;
        border-radius: 10px;
        box-sizing: border-box;
    }

    .register-container h2 {
        font-size: 18px;
    }

    .register-container label {
        font-size: 14px;
    }

    .register-container input,
    .register-container button {
        font-size: 14px;
        padding: 10px;
    }
}

.register-container {
    padding: 24px 16px;
    border-radius: 10px;
    margin: auto;
}

.register-container h2 {
    font-size: 18px;
}

.register-container input,
.register-container button {
    font-size: 14px;
}

.payment-methods {
    text-align: center;
}

.payment-methods h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #222;
}

.icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.icons img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: 12px;
    padding: 8px;
    background: white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.icons img:hover {
    transform: scale(1.1);
}

.toggle-btn {
    background: linear-gradient(to right, #6c757d, #495057);
    color: white;
    padding: 10px 14px;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    font-size: 18px;
    box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
    z-index: 9999;
    position: fixed;
    top: 12px;
    left: 15px;
}

.sidebar {
    height: 100%;
    width: 300px;
    background: linear-gradient(145deg, #495057, #343a40);
    color: white;
    padding: 24px 18px;
    box-shadow: 8px 0 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.4s ease-in-out;
    z-index: 1000;
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.sidebar.open {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 30px;
}

.sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border-radius: 12px;
    margin: 8px 0;
    padding: 5px 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: inset 0 0 0 transparent, 0 2px 6px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    font-size: 16px;
}

.sidebar a::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: rgba(255, 255, 255, 0.2);
    width: 200%;
    height: 200%;
    border-radius: 50%;
    transition: transform 0.4s ease;
    z-index: 0;
}

.sidebar a:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

.sidebar a span {
    position: relative;
    z-index: 1;
}

.sidebar a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sidebar a.active {
    background: #00b894;
    font-weight: bold;
    box-shadow: inset 4px 0 0 #00e6b7;
}

.sidebar a i {
    font-size: 18px;
    z-index: 1;
}

.modal {
    top: 10%;
}

.preloader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    flex-direction: column;
    background-color: #1f1f1f;
    z-index: 9999;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
}

.typewriter {
    font-size: 30px;
    color: #00e676;
    border-right: 3px solid #00e676;
    white-space: nowrap;
    overflow: hidden;
    width: 0;
    animation: typing 2s steps(30, end) forwards, blink 0.8s infinite;
}

@keyframes typing {
    from {
        width: 0
    }

    to {
        width: 22ch
    }
}

@keyframes blink {

    0%,
    100% {
        border-color: transparent
    }

    50% {
        border-color: #00e676
    }
}

.hidden {
    display: none;
}

.profile {
    height: 100%;
    width: 300px;
    background: linear-gradient(145deg, #495057, #343a40);
    color: white;
    padding: 24px 18px;
    box-shadow: 8px 0 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.4s ease-in-out;
    z-index: 1000;
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.profile a {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.44);
    color: white;
    border-radius: 12px;
    margin: 8px 0;
    padding: 5px 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: inset 0 0 0 transparent, 0 2px 6px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    font-size: 12px;
}

.profile a.active:hover {
    background: rgba(0, 0, 0, 0.50);
}

.profile a.active {
    font-weight: bold;
    box-shadow: inset 4px 0 0 #99a4a1;
}

.profile_item {
    display: flex;
    justify-content: space-between;
    width: 100%;
    flex-wrap: wrap;
}

.profile_item span:last-child {
    color: #ffa4ad;
}

.profile_item span:first-child {
    font-weight: bold;
    color: #28a745;
}

.profile_item span .copy_btn {
    padding: 3px 0px;
    color: #fff;
    position: absolute;
    top: 49%;
    right: 9px;
    transform: translateY(-50%);
    font-size: 18px;
    background: 000;
    cursor: pointer;
    border-left: 1px solid #00000040;
}

.btn-group-xs>.btn,
.btn-xs {
    padding: 1px 5px;
    font-size: 12px;
    line-height: 1.5;
    border-radius: 3px;
}

.timepicker-text-container {
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    position: relative;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.timepicker-span-hours,
.timepicker-span-minutes,
.timepicker-span-am-pm div {
    cursor: pointer
}

.timepicker-span-hours {
    margin-right: 3px
}

.timepicker-span-minutes {
    margin-left: 3px
}

.timepicker-display-am-pm {
    font-size: 1.3rem;
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    font-weight: 400
}

.timepicker-analog-display {
    -webkit-box-flex: 2.5;
    -webkit-flex: 2.5 auto;
    -ms-flex: 2.5 auto;
    flex: 2.5 auto
}

.timepicker-plate {
    background-color: #eee;
    border-radius: 50%;
    width: 270px;
    height: 270px;
    overflow: visible;
    position: relative;
    margin: auto;
    margin-top: 25px;
    margin-bottom: 5px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.timepicker-canvas,
.timepicker-dial {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0
}

.timepicker-minutes {
    visibility: hidden
}

.timepicker-tick {
    border-radius: 50%;
    color: rgba(0, 0, 0, 0.87);
    line-height: 40px;
    text-align: center;
    width: 40px;
    height: 40px;
    position: absolute;
    cursor: pointer;
    font-size: 15px
}

.timepicker-tick.active,
.timepicker-tick:hover {
    background-color: rgba(38, 166, 154, 0.25)
}

.timepicker-dial {
    -webkit-transition: opacity 350ms, -webkit-transform 350ms;
    transition: opacity 350ms, -webkit-transform 350ms;
    transition: transform 350ms, opacity 350ms;
    transition: transform 350ms, opacity 350ms, -webkit-transform 350ms
}

.timepicker-dial-out {
    opacity: 0
}

.timepicker-dial-out.timepicker-hours {
    -webkit-transform: scale(1.1, 1.1);
    transform: scale(1.1, 1.1)
}

.timepicker-dial-out.timepicker-minutes {
    -webkit-transform: scale(0.8, 0.8);
    transform: scale(0.8, 0.8)
}

.timepicker-canvas {
    -webkit-transition: opacity 175ms;
    transition: opacity 175ms
}

.timepicker-canvas line {
    stroke: #26a69a;
    stroke-width: 4;
    stroke-linecap: round
}

.timepicker-canvas-out {
    opacity: 0.25
}

.timepicker-canvas-bearing {
    stroke: none;
    fill: #26a69a
}

.timepicker-canvas-bg {
    stroke: none;
    fill: #26a69a
}

.timepicker-footer {
    margin: 0 auto;
    padding: 5px 1rem;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -ms-flex-pack: justify;
    justify-content: space-between
}

.timepicker-clear {
    color: #F44336
}

.timepicker-close {
    color: #26a69a
}

.timepicker-clear,
.timepicker-close {
    padding: 0 20px
}

@media only screen and (min-width: 601px) {
    .timepicker-modal {
        max-width: 600px;
        height: auto;
        margin-left: auto;
        position: absolute;
    }

    .timepicker-container.modal-content {
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -webkit-flex-direction: row;
        -ms-flex-direction: row;
        flex-direction: row
    }

    .timepicker-text-container {
        top: 32%
    }

    .timepicker-display-am-pm {
        position: relative;
        right: auto;
        bottom: auto;
        text-align: center;
        margin-top: 1.2rem
    }
}

.timepicker-digital-display {
    -webkit-box-flex: 1;
    -webkit-flex: 1 auto;
    -ms-flex: 1 auto;
    flex: 1 auto;
    background-color: #26a69a;
    padding: 10px;
    font-weight: 300;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.loader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    font-family: Arial, sans-serif;
    color: #333;
}

.loader {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
}

.bar {
    width: 8px;
    height: 20px;
    background: linear-gradient(180deg, #4caf50, #81c784);
    animation: loading 1s infinite ease-in-out;
}

.bar:nth-child(1) {
    animation-delay: 0s;
}

.bar:nth-child(2) {
    animation-delay: 0.2s;
}

.bar:nth-child(3) {
    animation-delay: 0.4s;
}

.bar:nth-child(4) {
    animation-delay: 0.6s;
}

.bar:nth-child(5) {
    animation-delay: 0.8s;
}

@keyframes loading {

    0%,
    40%,
    100% {
        transform: scaleY(0.4);
    }

    20% {
        transform: scaleY(1);
    }
}

.loader-container p {
    font-size: 14px;
    color: #555;
}

.error_popup {
    position: fixed;             /* makes it float */
    top: 100px;                  /* distance from top */
    left: 50%;                   /* horizontal center */
    transform: translateX(-50%); /* perfect centering */
    background: #f8d7da;
    color: #000;
    padding: 10px 20px;
    border-radius: 12px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    font-weight: bold;
    animation: popupFade 2s ease forwards;
    z-index: 9999;
}

.popup {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: #197137;
    color: #fff;
    padding: 10px 20px;
    border-radius: 12px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    font-weight: bold;
    animation: popupFade 2s ease forwards;
    z-index: 9999;
}

.methods input[type="radio"] {
    display: none;
}

.methods input[type="radio"]:checked+label {
    background: linear-gradient(280deg, #44fab4, #068b01);
    color: white;
    font-weight: bold;
    border: 1px solid #388e3c;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.methods label {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    font-size: 12px;
    background: #ec6d0e;
    color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.05);
    cursor: pointer;
    transition: all 0.2s ease;
}