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

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(
        135deg,
        #0c0c0c 0%,
        #1a1a2e 25%,
        #16213e 50%,
        #0f3460 100%
    );
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Animated background elements */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
            circle at 20% 80%,
            rgba(120, 119, 198, 0.3) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 20%,
            rgba(255, 119, 198, 0.15) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 40%,
            rgba(120, 219, 226, 0.1) 0%,
            transparent 50%
        );
    z-index: -2;
    animation: pulse 8s ease-in-out infinite alternate;
}

body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.03)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.04)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    z-index: -1;
    opacity: 0.6;
}

@keyframes pulse {
    0% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

/* Main container */
.login-wrapper {
    display: flex;
    max-width: 1100px;
    width: 100%;
    margin: 2rem;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: slideIn 1s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Left panel - Branding */
.brand-panel {
    flex: 1;
    background: linear-gradient(
        135deg,
        rgba(102, 126, 234, 0.9) 0%,
        rgba(118, 75, 162, 0.9) 100%
    );
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.brand-panel::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><path d="M20,60 Q40,20 80,40 T140,60 Q160,80 140,120 T80,140 Q40,160 20,120 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.brand-logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    color: white;
    border: 3px solid rgba(255, 255, 255, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    }
    to {
        box-shadow: 0 0 30px rgba(255, 255, 255, 0.6);
    }
}

.brand-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.brand-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.feature-list {
    list-style: none;
    text-align: left;
}

.feature-list li {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.feature-list i {
    color: rgba(255, 255, 255, 0.9);
    width: 16px;
}

/* Right panel - Login form */
.login-panel {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-title {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: #7f8c8d;
    font-size: 1rem;
}

/* Form styles */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
    color: #2c3e50;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #7f8c8d;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.form-input:focus + .input-icon {
    color: #667eea;
}

/* Error message */
.error-message {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%,
    100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* Buttons */
.button-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.btn {
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-login {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    box-shadow: 0 4px 15px rgba(238, 90, 82, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(238, 90, 82, 0.4);
}

.btn-market {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-market:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
}

/* Loading state */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .login-wrapper {
        flex-direction: column;
        margin: 1rem;
        max-width: 400px;
    }

    .brand-panel {
        padding: 2rem;
        min-height: 200px;
    }

    .brand-title {
        font-size: 1.8rem;
    }

    .brand-subtitle {
        font-size: 1rem;
    }

    .login-panel {
        padding: 2rem;
    }

    .login-title {
        font-size: 1.6rem;
    }

    .button-group {
        grid-template-columns: 1fr;
    }

    .feature-list {
        display: none;
    }
}

@media (max-width: 480px) {
    .login-wrapper {
        margin: 0.5rem;
    }

    .brand-panel,
    .login-panel {
        padding: 1.5rem;
    }
}

/* Success animation */
.success-checkmark {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: block;
    stroke-width: 2;
    stroke: #4caf50;
    stroke-miterlimit: 10;
    margin: 10% auto;
    box-shadow: inset 0px 0px 0px #4caf50;
    animation: fill 0.4s ease-in-out 0.4s forwards,
        scale 0.3s ease-in-out 0.9s both;
}

.success-checkmark__circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 2;
    stroke-miterlimit: 10;
    stroke: #4caf50;
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.success-checkmark__check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.8s forwards;
}

@keyframes stroke {
    100% {
        stroke-dashoffset: 0;
    }
}

@keyframes scale {
    0%,
    100% {
        transform: none;
    }
    50% {
        transform: scale3d(1.1, 1.1, 1);
    }
}

@keyframes fill {
    100% {
        box-shadow: inset 0px 0px 0px 30px #4caf50;
    }
}