@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
    font-family: "Poppins", sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    list-style: none;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #191919;
    padding: 10px;
}

.container {
    position: relative;
    width: 850px;
    height: 550px;
    background: #222;
    margin: 20px;
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.453);
    overflow: hidden;
}

.container h1 {
    color: #fff;
    font-size: 36px;
    margin: -10px 0;
}

.container p {
    color: #aaa;
    font-size: 14.5px;
    margin: 15px 0;
}

form {
    width: 100%;
}

.form-box {
    position: absolute;
    right: 0;
    width: 50%;
    height: 100%;
    background: #222;
    display: flex;
    align-items: center;
    text-align: center;
    color: #fff;
    padding: 40px;
    z-index: 1;
    transition: 0.6s ease-in-out 1.2s, visibility 0s 1s;
}

.container.active .form-box {
    right: 50%;
}

.form-box.register {
    visibility: hidden;
}

.container.active .form-box.register {
    visibility: visible;
}

.input-box {
    position: relative;
    margin: 30px 0;
}

.input-box input {
    width: 100%;
    padding: 13px 50px 13px 20px;
    background: #111;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-color: #EF3E3A;
    outline: none;
    font-size: 16px;
    color: #fff;
    font-weight: 500;
}

.input-box input::placeholder {
    color: #888;
    font-weight: 400;
}

.input-box i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
}

.forgot-link {
    margin: -15px 0 15px;
}

.forgot-link a {
    font-size: 14.5px;
    color: #f9e368;
    transition: 0.2s ease-in-out;
}

.forgot-link a:hover {
    color: #EF3E3A;
}

.btn {
    width: 100%;
    height: 48px;
    background: linear-gradient(90deg, #EF3E3A, #A65396);
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 16px;
    color: #fff;
    font-weight: 600;
    transition: all 0.3s ease 0s;
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(239, 62, 58, 0.6);
}

.social-icons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.social-icons a {
    display: inline-flex;
    padding: 10px;
    border: 2px solid #555;
    font-size: 24px;
    color: #fff;
    margin: 0 8px;
    transition: all 0.3s ease 0s;
}

.social-icons a:hover {
    color: #f9e368;
}

.toggle-box {
    position: absolute;
    width: 100%;
    height: 100%;
}

.toggle-box::before {
    content: '';
    position: absolute;
    left: -250%;
    width: 300%;
    height: 100%;
    background: #191919;
    border-radius: 150px;
    z-index: 2;
    transition: 1.8s ease-in-out;
}

.container.active .toggle-box::before {
    left: 50%;
}

.toggle-panel {
    position: absolute;
    width: 50%;
    height: 100%;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
    transition: 0.6s ease-in-out;
}

.toggle-panel.toggle-left {
    left: 0;
    transition-delay: 1.2s;
}

.container.active .toggle-panel.toggle-left {
    left: -50%;
    transition-delay: 0.6s;
}

.toggle-panel.toggle-right {
    right: -50%;
    transition-delay: 0.6s;
}

.container.active .toggle-panel.toggle-right {
    right: 0;
    transition-delay: 1.2s;
}

.toggle-panel p {
    margin-bottom: 20px;
}

.toggle-panel .btn {
    width: 160px;
    height: 46px;
    background: transparent;
    border: 2px solid #f9e368;
    color: #f9e368;
    box-shadow: none;
    transition: all 0.3s ease 0s;
}

.toggle-panel .btn:hover {
    color: black;
    background: #f9e368;
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE OPTIMIZATIONS
   ============================================ */

/* Tablets and smaller desktops */
@media (max-width: 900px) {
    .container {
        width: 95%;
        max-width: 700px;
        height: auto;
        min-height: 500px;
    }

    .container h1 {
        font-size: 28px;
    }

    .form-box {
        padding: 30px 25px;
    }

    .toggle-panel .btn {
        width: 140px;
        height: 44px;
    }
}

/* Mobile devices - Vertical stacking layout */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .container {
        width: 100%;
        max-width: 500px;
        height: auto;
        min-height: auto;
        display: flex;
        flex-direction: column;
    }

    /* Make form boxes full width and stack vertically */
    .form-box {
        position: relative;
        width: 100%;
        height: auto;
        right: auto;
        padding: 40px 30px;
        transition: all 0.4s ease;
    }

    /* Login form visible by default */
    .form-box.login {
        display: flex;
        opacity: 1;
        transform: translateX(0);
    }

    /* Register form hidden by default */
    .form-box.register {
        display: none;
        opacity: 0;
        visibility: hidden;
    }

    /* Active state - show register, hide login */
    .container.active .form-box.login {
        display: none;
        opacity: 0;
    }

    .container.active .form-box.register {
        display: flex;
        opacity: 1;
        visibility: visible;
        right: auto;
    }

    /* Hide the sliding toggle panel on mobile */
    .toggle-box {
        position: relative;
        width: 100%;
        height: auto;
        background: transparent;
    }

    .toggle-box::before {
        display: none;
    }

    .toggle-panel {
        position: relative;
        width: 100%;
        height: auto;
        padding: 30px 30px;
        left: 0 !important;
        right: 0 !important;
        background: #191919;
        border-radius: 0 0 20px 20px;
    }

    /* Show only the relevant toggle panel */
    .toggle-panel.toggle-left {
        display: flex;
    }

    .toggle-panel.toggle-right {
        display: none;
    }

    .container.active .toggle-panel.toggle-left {
        display: none;
        left: 0;
    }

    .container.active .toggle-panel.toggle-right {
        display: flex;
        right: 0;
    }

    .container h1 {
        font-size: 26px;
        margin: 0 0 10px 0;
    }

    .container p {
        font-size: 13px;
        margin: 10px 0;
    }

    .input-box {
        margin: 20px 0;
    }

    .input-box input {
        padding: 12px 45px 12px 18px;
        font-size: 15px;
    }

    .input-box i {
        right: 15px;
        font-size: 18px;
    }

    .btn {
        height: 45px;
        font-size: 15px;
    }

    .social-icons a {
        padding: 8px;
        font-size: 20px;
        margin: 0 6px;
    }

    .toggle-panel .btn {
        width: 140px;
        height: 42px;
        font-size: 15px;
    }

    .toggle-panel h1 {
        font-size: 22px;
    }

    .toggle-panel p {
        font-size: 13px;
        margin-bottom: 15px;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .container {
        margin: 10px;
        border-radius: 15px;
    }

    .form-box {
        padding: 30px 20px;
    }

    .container h1 {
        font-size: 24px;
    }

    .container p {
        font-size: 12px;
    }

    .input-box {
        margin: 18px 0;
    }

    .input-box input {
        padding: 11px 40px 11px 15px;
        font-size: 14px;
    }

    .input-box i {
        right: 12px;
        font-size: 16px;
    }

    .forgot-link a {
        font-size: 13px;
    }

    .btn {
        height: 42px;
        font-size: 14px;
    }

    .social-icons {
        margin-top: 5px;
    }

    .social-icons a {
        padding: 8px;
        font-size: 18px;
        margin: 0 5px;
    }

    .toggle-panel {
        padding: 25px 20px;
    }

    .toggle-panel h1 {
        font-size: 20px;
    }

    .toggle-panel p {
        font-size: 12px;
    }

    .toggle-panel .btn {
        width: 130px;
        height: 40px;
        font-size: 14px;
    }
}

/* Extra small devices */
@media (max-width: 360px) {
    .form-box {
        padding: 25px 15px;
    }

    .container h1 {
        font-size: 22px;
    }

    .input-box input {
        padding: 10px 35px 10px 12px;
        font-size: 13px;
    }

    .social-icons a {
        padding: 6px;
        font-size: 16px;
        margin: 0 4px;
    }

    .toggle-panel {
        padding: 20px 15px;
    }
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .container {
        max-width: 90%;
        margin: 10px auto;
    }

    .form-box {
        padding: 25px 30px;
    }

    .input-box {
        margin: 15px 0;
    }

    .toggle-panel {
        padding: 20px 30px;
    }
}